{"title":"PCM\/BMS","description":"","products":[{"product_id":"3-6v-li-ion-battery-16650-18650-protect-holder-case-pcm-1sxp-2s1p-2s2p-3s1p-4s1p","title":"18650 16650 Li-ion Battery Protection Board PCM - 1S-4S Configurations with Holder Case (1S1P\/2S1P\/2S2P\/3S1P\/4S1P)","description":"\u003ch2\u003eProfessional Li-ion Battery Protection Circuit Module (PCM)\u003c\/h2\u003e\n\u003cp\u003eProtect your 16650\/18650 lithium-ion battery packs with our advanced PCM protection board featuring integrated holder case. Available in multiple series and parallel configurations (1S-4S) to meet your exact voltage and capacity requirements for safe, reliable battery management.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/battery-holder-case-marketing-poster.jpg?v=1767756148\" alt=\"Battery holder for 18650 16650 Li-ion battery\"\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced PCM Protection:\u003c\/strong\u003e Integrated protection circuit module safeguards against overcharge, over-discharge, overcurrent, and short circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Configurations:\u003c\/strong\u003e Available in 1S1P, 2S1P, 2S2P, 3S1P, and 4S1P arrangements for flexible voltage options (3.6V to 14.4V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Designed for both 16650 and 18650 lithium-ion battery cells\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Holder Design:\u003c\/strong\u003e Built-in battery holder with spring-loaded contacts ensures reliable electrical connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Quality Components:\u003c\/strong\u003e Premium protection IC with accurate voltage detection and fast response time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Flame-retardant ABS plastic housing resists impact and heat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-wired Leads:\u003c\/strong\u003e Tinned copper wire leads for easy integration into your battery pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e Space-efficient design ideal for tight installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProtection Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects when cell voltage exceeds safe limits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Prevents deep discharge that can damage lithium cells\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Limits current flow to prevent thermal runaway\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instant cutoff in case of short circuit conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Balancing:\u003c\/strong\u003e Ensures even charging across series-connected cells\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eConfiguration Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1S1P:\u003c\/strong\u003e 3.6V nominal (1 cell) - Single cell protection for low-voltage applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2S1P:\u003c\/strong\u003e 7.2V nominal (2 cells in series) - Ideal for portable electronics and power tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2S2P:\u003c\/strong\u003e 7.2V nominal (2S × 2P) - Double capacity at 7.2V for extended runtime\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3S1P:\u003c\/strong\u003e 10.8V nominal (3 cells in series) - Common for cordless power tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4S1P:\u003c\/strong\u003e 14.4V nominal (4 cells in series) - High voltage applications and e-bikes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible Cell Sizes: 16650, 18650 lithium-ion\u003c\/li\u003e\n\u003cli\u003eVoltage Range: 3.6V - 14.4V (configuration dependent)\u003c\/li\u003e\n\u003cli\u003eProtection IC: High-precision voltage detection\u003c\/li\u003e\n\u003cli\u003eOvercharge Protection Voltage: 4.25V ± 0.05V per cell\u003c\/li\u003e\n\u003cli\u003eOver-discharge Protection Voltage: 2.5V ± 0.1V per cell\u003c\/li\u003e\n\u003cli\u003eOvercurrent Protection: Configuration dependent\u003c\/li\u003e\n\u003cli\u003eHousing Material: Flame-retardant ABS plastic (UL94 V-0)\u003c\/li\u003e\n\u003cli\u003eWire Specification: 20AWG silicone wire (standard)\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -20°C to 60°C (-4°F to 140°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003ePerfect for DIY battery pack assembly, portable power banks, electric bicycles, RC vehicles, LED lighting systems, solar energy storage, backup power supplies, robotics projects, power tools, and custom electronics requiring reliable lithium-ion battery protection.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x PCM Protection Board with Integrated Battery Holder\u003c\/li\u003e\n\u003cli\u003ePre-wired connection leads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Batteries NOT included. Please select the configuration that matches your voltage and capacity requirements. Always use matched cells of the same capacity and chemistry.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eSafety Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging:\u003c\/strong\u003e Always use a compatible lithium-ion charger with proper voltage settings for your configuration. Never exceed recommended charging current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry location away from flammable materials and direct sunlight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not exceed the rated current capacity of the PCM protection circuit. Ensure proper heat dissipation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e Avoid exposure to extreme temperatures. Do not operate outside specified temperature range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandling:\u003c\/strong\u003e Insert batteries with correct polarity as clearly marked. Never force cells into holder. Use only matched cells\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly check for physical damage, loose connections, corrosion, or signs of overheating. Discontinue use immediately if damage is found\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShipping \u0026amp; Transportation Notice\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHazardous Goods:\u003c\/strong\u003e PCM protection boards without batteries are NOT classified as dangerous goods\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Transport:\u003c\/strong\u003e Safe for international air freight when shipped without batteries installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Carefully packaged with anti-static protection to prevent ESD damage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Ships within 1-2 business days, delivery times vary by destination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Compliance certificates and technical specifications available upon request\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"fmabattery","offers":[{"title":"3.7V 1S1P","offer_id":46274130575549,"sku":"FPML1S1P030C","price":8.25,"currency_code":"USD","in_stock":true},{"title":"3.7V 1S2P","offer_id":46274130608317,"sku":"FPML1S2P050C","price":10.16,"currency_code":"USD","in_stock":true},{"title":"3.7V 1S3P","offer_id":46274130641085,"sku":"FPML1S3P050C","price":11.93,"currency_code":"USD","in_stock":true},{"title":"3.7V 1S4P","offer_id":46274130673853,"sku":"FPML1S4P050C","price":11.31,"currency_code":"USD","in_stock":true},{"title":"7.4V 2S1P","offer_id":46274130706621,"sku":"FPML2S1P050C","price":10.16,"currency_code":"USD","in_stock":true},{"title":"7.4V 2S2P","offer_id":46274130739389,"sku":"FPML2S2P050C","price":11.9,"currency_code":"USD","in_stock":true},{"title":"11.1V 3S1P","offer_id":46274130772157,"sku":"FPML3S1P040C","price":13.69,"currency_code":"USD","in_stock":true},{"title":"14.8V 4S1P","offer_id":46274130804925,"sku":"FPML4S1P040C","price":16.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/Protected_Li-ion_Battery_Holder-1S1P.jpg?v=1767754736"},{"product_id":"protect-circuit-management-board-pcm-bms-for-1s-3-6v-3-7v-li-ion-li-po-battery","title":"1S 3.6V 3.7V Li-ion Li-Po Battery Protection Circuit Board PCM BMS (Multiple Models Available)","description":"\u003ch2\u003e1S 3.6V\/3.7V Li-ion Li-Po Battery Protection Circuit Board (PCM\/BMS)\u003c\/h2\u003e\n\u003cp\u003eProtect your single-cell 3.6V\/3.7V lithium-ion or lithium-polymer batteries with our high-quality protection circuit modules (PCM\/BMS). Available in 8 different models with varying shapes, sizes, and discharge currents to meet your specific application needs. Each board provides essential overcharge, over-discharge, and short circuit protection for safe and reliable battery operation.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × 1S Battery Protection Circuit Board (PCM\/BMS) - Select model based on your requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Models\u003c\/h3\u003e\n\u003cp\u003eThis product is available in 8 different configurations with varying discharge currents, shapes, and sizes. Please refer to the specification table image for detailed comparison of all models.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML01S1.png?v=1769854390\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML01S2.png?v=1769854390\" alt=\"\"\u003e\u003c\/h3\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 Model Options:\u003c\/strong\u003e Different shapes, sizes, and discharge currents to fit various applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Protection:\u003c\/strong\u003e Overcharge, over-discharge, and short circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1S Configuration:\u003c\/strong\u003e Designed for single-cell 3.6V\/3.7V batteries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Chemistry Support:\u003c\/strong\u003e Works with both Li-ion and Li-Po batteries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Various sizes available for easy integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Performance:\u003c\/strong\u003e Ensures safe battery operation and extends battery life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Simple connection to battery terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost-Effective:\u003c\/strong\u003e Affordable protection for your lithium batteries\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProtection Functions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Disconnects charging when voltage exceeds safe limit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Disconnects load when voltage drops too low\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly cuts power during short circuit conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Protects against excessive discharge current\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eThese protection boards are ideal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDIY battery packs\u003c\/li\u003e\n\u003cli\u003ePortable electronics\u003c\/li\u003e\n\u003cli\u003eLED lighting systems\u003c\/li\u003e\n\u003cli\u003eSmall power tools\u003c\/li\u003e\n\u003cli\u003eRC models and drones\u003c\/li\u003e\n\u003cli\u003eBluetooth speakers\u003c\/li\u003e\n\u003cli\u003ePower banks\u003c\/li\u003e\n\u003cli\u003eBattery repair and replacement\u003c\/li\u003e\n\u003cli\u003eCustom battery projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety Information\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e Ensure correct polarity when connecting to battery. Incorrect connection may damage the board or battery.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e Do not exceed the rated discharge current for your selected model to prevent damage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHandling:\u003c\/strong\u003e Handle with care to avoid damaging circuit components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from moisture and extreme temperatures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Check for physical damage before installation. Do not use damaged boards.\u003c\/p\u003e\n\u003ch3\u003eShipping \u0026amp; Transportation Notice\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eElectronic Component:\u003c\/strong\u003e This is an electronic circuit board without battery cells.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging:\u003c\/strong\u003e Shipped in protective anti-static packaging to prevent damage during transit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Standard shipping times apply for electronic components.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"3.7V 2A 3x15mm","offer_id":46370428780733,"sku":"FPML01S020F033","price":6.57,"currency_code":"USD","in_stock":true},{"title":"3.7V 2.5A 4.4x22.5mm","offer_id":46370428813501,"sku":"FPML01S025F293","price":6.64,"currency_code":"USD","in_stock":true},{"title":"3.7V 2.5A 14mm","offer_id":46370428846269,"sku":"FPML01S025R014","price":6.66,"currency_code":"USD","in_stock":true},{"title":"3.7V 3A 17mm","offer_id":46370428879037,"sku":"FPML01S030R869","price":6.64,"currency_code":"USD","in_stock":true},{"title":"3.7V 4A 5x28mm","offer_id":46370428911805,"sku":"FPML01S040F29","price":7.05,"currency_code":"USD","in_stock":true},{"title":"3.7V 4A 16.1mm","offer_id":46370428944573,"sku":"FPML01S040R548","price":6.66,"currency_code":"USD","in_stock":true},{"title":"3.7V 5A 5x38mm","offer_id":46370428977341,"sku":"FPML01S050F971","price":6.66,"currency_code":"USD","in_stock":true},{"title":"3.7V 10A 17x34.5mm","offer_id":46370429010109,"sku":"FPML01S100F084","price":7.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_efb49553-67d3-471f-a984-ab2a1bedfcdd.jpg?v=1769853414"},{"product_id":"li-fe-battery-lifepo4-pcm-bms-12-8v-protection-circuit-management-module-board","title":"4S 12.8V LiFePO4 Battery PCM BMS Protection Circuit Board (8 Models Available)","description":"\u003ch2\u003e\u003cstrong\u003e4S 12.8V LiFePO4 Battery Protection Board (BMS\/PCM) - 8 Models Available\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional Battery Management System (BMS) \/ Protection Circuit Module (PCM) specifically designed for 4S (12.8V) LiFePO4 (Lithium Iron Phosphate) battery packs. Available in 8 different models with current ratings from 4A to 20A and various sizes to fit different applications. Features comprehensive protection including overcharge, over-discharge, overcurrent, short circuit, and temperature protection, plus built-in cell balancing function. Perfect for DIY 12V LiFePO4 battery packs, solar systems, RVs, marine applications, and backup power systems.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 Models Available:\u003c\/strong\u003e Choose from 4A to 20A current ratings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4S Configuration:\u003c\/strong\u003e For 12.8V (4-cell) LiFePO4 battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiFePO4 Specific:\u003c\/strong\u003e Calibrated for Li-Fe voltage characteristics (3.2V per cell)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, short circuit, temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Balancing:\u003c\/strong\u003e Built-in balancing function for optimal performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Sizes:\u003c\/strong\u003e Various form factors from 16×50mm to 61×61mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Components:\u003c\/strong\u003e Reliable MOSFETs and protection ICs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Self-Consumption:\u003c\/strong\u003e Minimal power drain on battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× 4S 12.8V LiFePO4 Protection Board (BMS\/PCM) - model as selected\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAvailable Models - Choose Based on Your Current Needs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCurrent\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSize (mm)\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eWeight\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e4A Round\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e25.8mm Ø\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e33g\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLow current, compact cylindrical packs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e8A Model 1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e8A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e22 × 50\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e34g\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCompact applications, narrow spaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e8A Model 2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e8A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e30 × 70\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e39g\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eStandard applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e8A Model 3\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e8A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e16 × 50\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e33g\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eUltra-compact, tight spaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e10A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e34 × 42\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e46g\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMedium current applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e16A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e16A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e31 × 62\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e42g\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eHigher current, power tools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e20A Model 1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e61 × 61\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e50g\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eHigh current, square format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e20A Model 2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e34 × 60\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e41g\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eHigh current, rectangular format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPME04S1_72c5a3dd-4fef-4d76-98bf-2c92f770e22a.png?v=1772522223\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPME04S2_9740009e-429d-4779-9115-376ee376590b.png?v=1772522223\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eProtection Type\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when any cell exceeds 3.65V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when any cell drops below 2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when current exceeds rated limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eShort Circuit Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eInstantly disconnects on short circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCell Balancing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBalances cells during charging for optimal performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTemperature Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eProtects against overheating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eStep-by-Step Installation Instructions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e✅ Follow These Steps Carefully for Safe Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStep 1: Preparation \u0026amp; Safety\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCRITICAL:\u003c\/strong\u003e Disconnect all power sources before starting\u003c\/li\u003e\n\u003cli\u003eVerify you have a 4S (4-cell) LiFePO4 battery pack\u003c\/li\u003e\n\u003cli\u003eSelect the correct BMS model based on your maximum current draw\u003c\/li\u003e\n\u003cli\u003ePrepare tools: soldering iron, solder, wire cutters, multimeter, heat shrink tubing\u003c\/li\u003e\n\u003cli\u003eWire gauge recommendations:\u003c\/li\u003e\n\u003cli\u003e4-8A: 18-20 AWG\u003c\/li\u003e\n\u003cli\u003e10-16A: 14-16 AWG\u003c\/li\u003e\n\u003cli\u003e20A: 12-14 AWG\u003c\/li\u003e\n\u003cli\u003eWork in a well-ventilated area with good lighting\u003c\/li\u003e\n\u003cli\u003eWear safety glasses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 2: Identify Connection Points on BMS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLocate the following pads\/wires on the BMS board:\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB-\u003c\/strong\u003e (Battery Negative): Connect to negative terminal of battery pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB+\u003c\/strong\u003e (Battery Positive): Connect to positive terminal of battery pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP-\u003c\/strong\u003e (Load\/Charger Negative): Output negative terminal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP+\u003c\/strong\u003e (Load\/Charger Positive): Output positive terminal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalance Wires (4S):\u003c\/strong\u003e B-, B1, B2, B3, B+\u003c\/li\u003e\n\u003cli\u003eRefer to the wiring diagram (usually printed on the board or in documentation)\u003c\/li\u003e\n\u003cli\u003eTake a photo of the diagram for reference during installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 3: Connect Balance Wires (Critical Step)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eFor 4S (12.8V) Configuration:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB-\u003c\/strong\u003e → Negative terminal of Cell 1 (first cell)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB1\u003c\/strong\u003e → Connection point between Cell 1 and Cell 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB2\u003c\/strong\u003e → Connection point between Cell 2 and Cell 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB3\u003c\/strong\u003e → Connection point between Cell 3 and Cell 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB+\u003c\/strong\u003e → Positive terminal of Cell 4 (last cell)\u003c\/li\u003e\n\u003cli\u003eUse thin wire (22-24 AWG) for balance connections\u003c\/li\u003e\n\u003cli\u003eLabel each wire BEFORE connecting (use masking tape)\u003c\/li\u003e\n\u003cli\u003eConnect in order from B- to B+\u003c\/li\u003e\n\u003cli\u003eDouble-check each connection with multimeter:\u003c\/li\u003e\n\u003cli\u003eB- to B1 should read ~3.2V\u003c\/li\u003e\n\u003cli\u003eB1 to B2 should read ~3.2V\u003c\/li\u003e\n\u003cli\u003eB2 to B3 should read ~3.2V\u003c\/li\u003e\n\u003cli\u003eB3 to B+ should read ~3.2V\u003c\/li\u003e\n\u003cli\u003eB- to B+ should read ~12.8V total\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 4: Connect Main Power Wires\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eBattery Side Connections:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eB-\u003c\/strong\u003e pad to battery pack negative terminal\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eB+\u003c\/strong\u003e pad to battery pack positive terminal\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge based on current rating\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLoad\/Charger Side Connections:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eP-\u003c\/strong\u003e pad to load\/charger negative\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eP+\u003c\/strong\u003e pad to load\/charger positive\u003c\/li\u003e\n\u003cli\u003eThese are your output terminals\u003c\/li\u003e\n\u003cli\u003eSolder all connections securely\u003c\/li\u003e\n\u003cli\u003eApply heat shrink tubing immediately after each solder joint\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 5: Verify All Connections Before Power-On\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCRITICAL - Check before applying power:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e✅ All balance wires connected in correct sequence (B-, B1, B2, B3, B+)\u003c\/li\u003e\n\u003cli\u003e✅ No reversed polarity on any connection\u003c\/li\u003e\n\u003cli\u003e✅ All solder joints are solid and well-insulated\u003c\/li\u003e\n\u003cli\u003e✅ No short circuits between adjacent wires\u003c\/li\u003e\n\u003cli\u003e✅ Use multimeter to verify voltage at each balance point\u003c\/li\u003e\n\u003cli\u003e✅ Verify total pack voltage is approximately 12.8V (11V-14.6V range)\u003c\/li\u003e\n\u003cli\u003e✅ Check continuity from B- to P- and B+ to P+\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 6: Initial Testing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect battery pack to BMS\u003c\/li\u003e\n\u003cli\u003eMeasure voltage at P+ and P- terminals with multimeter\u003c\/li\u003e\n\u003cli\u003eShould read full pack voltage (~12.8V)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIf no output voltage:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eBMS may be in protection mode (normal for new BMS)\u003c\/li\u003e\n\u003cli\u003eConnect charger briefly (5-10 seconds) to wake up BMS\u003c\/li\u003e\n\u003cli\u003eCheck output voltage again\u003c\/li\u003e\n\u003cli\u003eTest with low-current load first (1-2A)\u003c\/li\u003e\n\u003cli\u003eMonitor BMS temperature during first 10 minutes of use\u003c\/li\u003e\n\u003cli\u003eVerify protection functions:\u003c\/li\u003e\n\u003cli\u003eTest over-discharge protection (discharge to 10V, BMS should disconnect)\u003c\/li\u003e\n\u003cli\u003eTest overcharge protection (charge to 14.6V, BMS should disconnect)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 7: Final Assembly \u0026amp; Insulation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApply heat shrink tubing to all exposed wire connections\u003c\/li\u003e\n\u003cli\u003eSecure BMS board inside battery pack enclosure\u003c\/li\u003e\n\u003cli\u003eUse foam padding or insulation to prevent BMS from touching cells directly\u003c\/li\u003e\n\u003cli\u003eEnsure adequate ventilation around BMS (leave 5-10mm clearance)\u003c\/li\u003e\n\u003cli\u003eRoute balance wires neatly, avoid sharp bends\u003c\/li\u003e\n\u003cli\u003eKeep balance wires away from high-current main power wires\u003c\/li\u003e\n\u003cli\u003eLabel output terminals clearly: P+ (Positive) and P- (Negative)\u003c\/li\u003e\n\u003cli\u003ePerform final voltage check before sealing enclosure\u003c\/li\u003e\n\u003cli\u003eDocument your wiring for future reference\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Installation Precautions \u0026amp; Safety Guidelines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ CRITICAL SAFETY WARNINGS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ \u003cstrong\u003eNEVER use this 4S BMS on 1S, 2S, 3S, or 5S+ battery packs\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT exceed the rated current capacity of your chosen model\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT reverse polarity - will destroy BMS instantly\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT skip balance wire connections - BMS will not function properly\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT use with Li-ion or LiPo batteries - LiFePO4 ONLY\u003c\/li\u003e\n\u003cli\u003e✅ Verify you have exactly 4 LiFePO4 cells in series\u003c\/li\u003e\n\u003cli\u003e✅ Ensure all cells are balanced (within 0.05V of each other) before installation\u003c\/li\u003e\n\u003cli\u003e✅ Select BMS current rating 20-30% higher than your maximum load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDuring Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ Never work on live circuits\u003c\/li\u003e\n\u003cli\u003e❌ Do not short circuit battery terminals with tools\u003c\/li\u003e\n\u003cli\u003e❌ Avoid touching both terminals simultaneously\u003c\/li\u003e\n\u003cli\u003e❌ Do not solder directly to battery cells (use tabs or holders)\u003c\/li\u003e\n\u003cli\u003e✅ Work methodically, one connection at a time\u003c\/li\u003e\n\u003cli\u003e✅ Use proper soldering technique (clean tip, appropriate temperature)\u003c\/li\u003e\n\u003cli\u003e✅ Insulate each connection immediately after soldering\u003c\/li\u003e\n\u003cli\u003e✅ Test each balance wire connection with multimeter before proceeding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBalance Wire Connection - Critical Tips:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe balance wires MUST be connected in the correct order\u003c\/li\u003e\n\u003cli\u003eIncorrect balance wire order will damage the BMS permanently\u003c\/li\u003e\n\u003cli\u003eLabel each wire before connecting: B-, B1, B2, B3, B+\u003c\/li\u003e\n\u003cli\u003eUse different colored wires if possible for easy identification\u003c\/li\u003e\n\u003cli\u003eStart from B- and work your way to B+ in sequence\u003c\/li\u003e\n\u003cli\u003eVerify voltage between each adjacent balance point (~3.2V)\u003c\/li\u003e\n\u003cli\u003eKeep balance wires as short as practical (but not too tight)\u003c\/li\u003e\n\u003cli\u003eDo not bundle balance wires with high-current power wires\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWire Gauge Selection:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUsing wire too thin will cause voltage drop and overheating\u003c\/li\u003e\n\u003cli\u003e4A model: minimum 18 AWG (1.0mm²)\u003c\/li\u003e\n\u003cli\u003e8A model: minimum 16 AWG (1.5mm²)\u003c\/li\u003e\n\u003cli\u003e10A model: minimum 14 AWG (2.5mm²)\u003c\/li\u003e\n\u003cli\u003e16A model: minimum 14 AWG (2.5mm²)\u003c\/li\u003e\n\u003cli\u003e20A model: minimum 12 AWG (4.0mm²)\u003c\/li\u003e\n\u003cli\u003eWhen in doubt, use thicker wire - it's safer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Installation Mistakes to Avoid:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ Connecting balance wires in wrong order (most common mistake)\u003c\/li\u003e\n\u003cli\u003e❌ Reversing B+ and B- connections\u003c\/li\u003e\n\u003cli\u003e❌ Using wire gauge too small for current rating\u003c\/li\u003e\n\u003cli\u003e❌ Forgetting to insulate solder joints\u003c\/li\u003e\n\u003cli\u003e❌ Mounting BMS directly against battery cells (causes shorts)\u003c\/li\u003e\n\u003cli\u003e❌ Not testing connections before final assembly\u003c\/li\u003e\n\u003cli\u003e❌ Exceeding current rating of BMS\u003c\/li\u003e\n\u003cli\u003e❌ Mixing up P+ and B+ connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Guide:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eNo output voltage at P+\/P-:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eBMS in protection mode - connect charger briefly to reset\u003c\/li\u003e\n\u003cli\u003eCheck balance wire connections are correct\u003c\/li\u003e\n\u003cli\u003eVerify battery voltage is within normal range (11V-14.6V)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBMS keeps shutting off under load:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eCurrent draw exceeds BMS rating - upgrade to higher current model\u003c\/li\u003e\n\u003cli\u003eCheck wire gauge is adequate\u003c\/li\u003e\n\u003cli\u003eVerify no short circuits in load\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWon't charge:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eCheck balance wire connections\u003c\/li\u003e\n\u003cli\u003eVerify charger voltage is correct (14.6V for 4S LiFePO4)\u003c\/li\u003e\n\u003cli\u003eEnsure charger current is within BMS rating\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBMS getting very hot:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eCurrent exceeds rating - reduce load or upgrade BMS\u003c\/li\u003e\n\u003cli\u003ePoor ventilation - improve airflow\u003c\/li\u003e\n\u003cli\u003eWire gauge too small - use thicker wires\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCells not balancing:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eCheck all balance wire connections are secure\u003c\/li\u003e\n\u003cli\u003eVerify balance wires are in correct order\u003c\/li\u003e\n\u003cli\u003eAllow more time - balancing is slow (can take hours)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCommon Applications for 4S 12.8V LiFePO4 BMS\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Energy Systems:\u003c\/strong\u003e 12V solar battery banks, off-grid power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRV \u0026amp; Marine:\u003c\/strong\u003e RV house batteries, boat batteries, trolling motors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive:\u003c\/strong\u003e Car audio systems, 12V vehicle accessories\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackup Power:\u003c\/strong\u003e UPS systems, emergency lighting, security systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY Projects:\u003c\/strong\u003e Custom 12V battery packs, portable power stations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Tools:\u003c\/strong\u003e Cordless tool battery packs (12V systems)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Vehicles:\u003c\/strong\u003e Small EVs, mobility scooters, golf carts (12V systems)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLighting:\u003c\/strong\u003e LED lighting systems, camping lights\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Use a BMS for LiFePO4 Batteries?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEssential Protection:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrevents overcharging - extends battery life from 500 to 2000+ cycles\u003c\/li\u003e\n\u003cli\u003ePrevents over-discharge - protects cells from permanent damage\u003c\/li\u003e\n\u003cli\u003eBalances cells during charging - ensures all cells age evenly\u003c\/li\u003e\n\u003cli\u003eProtects against short circuits and overcurrent - prevents fires\u003c\/li\u003e\n\u003cli\u003eTemperature protection - prevents thermal damage\u003c\/li\u003e\n\u003cli\u003eRequired for safe multi-cell LiFePO4 operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLong-Term Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximizes battery pack lifespan (can last 10+ years with BMS)\u003c\/li\u003e\n\u003cli\u003eMaintains optimal performance throughout battery life\u003c\/li\u003e\n\u003cli\u003ePrevents costly battery replacement\u003c\/li\u003e\n\u003cli\u003eProvides peace of mind for expensive battery investments\u003c\/li\u003e\n\u003cli\u003eProtects connected devices from battery failure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWarranty \u0026amp; Support\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWe stand behind the quality of our BMS boards. If you experience any issues, please contact us for support. Always follow installation instructions carefully and verify all connections before applying power. \u003cstrong\u003eImproper installation, reversed polarity, or using wrong voltage configuration will void warranty.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNeed Help?\u003c\/strong\u003e If you're unsure about any step of the installation process, please contact us before proceeding. We're here to help ensure your battery pack is safe and reliable.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"12.8V 4A 25.8mm","offer_id":46370429272253,"sku":"FPME04S040R492","price":8.54,"currency_code":"USD","in_stock":true},{"title":"12.8V 8A 22x50mm","offer_id":46370429305021,"sku":"FPME04S080W003","price":12.39,"currency_code":"USD","in_stock":true},{"title":"12.8V 8A 30x70mm","offer_id":46370429337789,"sku":"FPME04S080W004","price":11.67,"currency_code":"USD","in_stock":true},{"title":"12.8V 8A 16x50mm","offer_id":46370429370557,"sku":"FPME04S080W005","price":10.02,"currency_code":"USD","in_stock":true},{"title":"12.8V 10A 34x42mm","offer_id":46370429403325,"sku":"FPME04S100W006","price":12.25,"currency_code":"USD","in_stock":true},{"title":"12.8V 16A 31x62mm","offer_id":46370429436093,"sku":"FPME04S160W007","price":13.89,"currency_code":"USD","in_stock":true},{"title":"12.8V 20A 61x61mm","offer_id":46370429468861,"sku":"FPME04S200F490","price":16.98,"currency_code":"USD","in_stock":true},{"title":"12.8V 20A 34x60mm","offer_id":46370429501629,"sku":"FPME04S200W008","price":13.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_7ea8aca1-bafe-430b-bd29-f7f9fa0fb2eb.jpg?v=1769853417"},{"product_id":"3-6v-1200-4000mah-sc-ni-mh-battery-for-portable-device-luminous-voice-toys","title":"3.6V 1200-4000mAh SC Ni-MH Battery for Portable Device Luminous Voice Toys","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eHigh-quality 3.6V SC Ni-Cd\/Ni-MH rechargeable battery pack designed for portable devices, luminous voice toys, and electronic gadgets. Available in multiple capacity options with both Nickel-Cadmium (Ni-Cd) and Nickel-Metal Hydride (Ni-MH) chemistries, featuring four connector options (DC5521, 51004, SYP, SMP) for versatile compatibility.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × 3.6V SC Rechargeable Battery Pack (chemistry, capacity, and connector as selected)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 3.6V (3S configuration)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNi-Cd Capacity Options:\u003c\/strong\u003e 1200mAh, 1500mAh, 1800mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNi-MH Capacity Options:\u003c\/strong\u003e 1600mAh, 2200mAh, 3000mAh, 4000mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Options:\u003c\/strong\u003e DC5521, 51004, SYP, SMP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 35 × 46 × 45mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Package:\u003c\/strong\u003e PVC heat shrink or paper tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e FMA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with:\u003c\/strong\u003e Portable devices, luminous voice toys, electronic gadgets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRechargeable:\u003c\/strong\u003e Yes, hundreds of charge cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible connectors:\u003c\/strong\u003e Four connector types for maximum compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong runtime:\u003c\/strong\u003e Extended operating time for toys and devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable performance:\u003c\/strong\u003e Consistent power output for quality performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBattery Chemistry Options\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNickel-Cadmium (Ni-Cd) - Available Capacities:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1200mAh:\u003c\/strong\u003e Standard capacity for basic needs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1500mAh:\u003c\/strong\u003e Enhanced capacity for regular use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1800mAh:\u003c\/strong\u003e High capacity for extended playtime\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNi-Cd Benefits: Durable, performs well in cold weather, cost-effective\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNickel-Metal Hydride (Ni-MH) - Available Capacities:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1600mAh:\u003c\/strong\u003e Entry-level Ni-MH capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2200mAh:\u003c\/strong\u003e Standard Ni-MH capacity for regular use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3000mAh:\u003c\/strong\u003e High capacity for extended runtime\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4000mAh:\u003c\/strong\u003e Maximum capacity for all-day use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNi-MH Benefits: Higher capacity, more environmentally friendly, no memory effect\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eConnector Options\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFour Connector Types Available:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC5521:\u003c\/strong\u003e Standard DC barrel connector for plug-and-play convenience\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e51004:\u003c\/strong\u003e Specialized connector for specific device compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSYP:\u003c\/strong\u003e Wire connector for direct connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSMP:\u003c\/strong\u003e Alternative wire connector configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Custom connector arrangements and battery configurations are available upon request. Please contact us with specific details and photos of your requirements.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eChoosing Between Ni-Cd and Ni-MH\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eChoose Ni-Cd if you need:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCost-effective solution\u003c\/li\u003e\n\u003cli\u003eBetter performance in cold weather\u003c\/li\u003e\n\u003cli\u003eProven durability and reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eChoose Ni-MH if you need:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigher capacity and longer runtime\u003c\/li\u003e\n\u003cli\u003eMore environmentally friendly option\u003c\/li\u003e\n\u003cli\u003eNo memory effect concerns\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003ePerfect replacement battery for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePortable electronic devices\u003c\/li\u003e\n\u003cli\u003eLuminous voice toys and talking toys\u003c\/li\u003e\n\u003cli\u003eElectronic gadgets and games\u003c\/li\u003e\n\u003cli\u003eChildren's educational toys\u003c\/li\u003e\n\u003cli\u003ePortable audio devices\u003c\/li\u003e\n\u003cli\u003eOther devices requiring 3.6V Ni-Cd\/Ni-MH battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSafety Information\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only the recommended charger designed for Ni-Cd or Ni-MH batteries. Do not overcharge or leave unattended during charging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight and heat sources. Keep away from children and pets.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not short-circuit, puncture, crush, or disassemble the battery. Avoid exposure to water or moisture.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate and store within the recommended temperature range. Extreme temperatures may affect performance and safety.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Do not dispose of in regular trash. Recycle according to local regulations for rechargeable batteries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect the battery for signs of damage, swelling, or leakage. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\u003ch2\u003eShipping \u0026amp; Transportation Notice\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product contains rechargeable batteries and may be subject to hazardous materials regulations during shipping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transportation:\u003c\/strong\u003e Batteries may be restricted or prohibited on certain air routes. 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Available in multiple capacity options with both Nickel-Cadmium (Ni-Cd) and Nickel-Metal Hydride (Ni-MH) chemistries, providing reliable and long-lasting power for professional landscaping and gardening applications.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × 7.2V Rechargeable Battery Pack (chemistry and capacity as selected)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 7.2V (6S configuration)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNi-Cd Capacity Options:\u003c\/strong\u003e 1200mAh, 1500mAh, 1800mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNi-MH Capacity Options:\u003c\/strong\u003e 1600mAh, 2200mAh, 3000mAh, 4000mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Size:\u003c\/strong\u003e 23mm diameter × 43mm height\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal Pack Size:\u003c\/strong\u003e 23 × 67 × 87mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Package:\u003c\/strong\u003e PVC heat shrink or paper tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with:\u003c\/strong\u003e Tanaka AST 7000 trimmers, gardening tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRechargeable:\u003c\/strong\u003e Yes, hundreds of charge cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e Robust design for outdoor use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong runtime:\u003c\/strong\u003e Extended operating time for professional gardening\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable performance:\u003c\/strong\u003e Consistent power output for quality trimming\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBattery Chemistry Options\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNickel-Cadmium (Ni-Cd) - Available Capacities:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1200mAh:\u003c\/strong\u003e Standard capacity for basic trimming tasks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1500mAh:\u003c\/strong\u003e Enhanced capacity for regular use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1800mAh:\u003c\/strong\u003e High capacity for extended trimming sessions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNi-Cd Benefits: Durable, performs well in cold weather, cost-effective\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNickel-Metal Hydride (Ni-MH) - Available Capacities:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1600mAh:\u003c\/strong\u003e Entry-level Ni-MH capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2200mAh:\u003c\/strong\u003e Standard Ni-MH capacity for regular use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3000mAh:\u003c\/strong\u003e High capacity for extended runtime\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4000mAh:\u003c\/strong\u003e Maximum capacity for all-day professional use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNi-MH Benefits: Higher capacity, more environmentally friendly, no memory effect\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eChoosing Between Ni-Cd and Ni-MH\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eChoose Ni-Cd if you need:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCost-effective solution\u003c\/li\u003e\n\u003cli\u003eBetter performance in cold weather\u003c\/li\u003e\n\u003cli\u003eProven durability and reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eChoose Ni-MH if you need:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigher capacity and longer runtime\u003c\/li\u003e\n\u003cli\u003eMore environmentally friendly option\u003c\/li\u003e\n\u003cli\u003eNo memory effect concerns\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003ePerfect replacement battery for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTanaka AST 7000 trimmers\u003c\/li\u003e\n\u003cli\u003eCordless gardening tools\u003c\/li\u003e\n\u003cli\u003eHedge trimmers and brush cutters\u003c\/li\u003e\n\u003cli\u003eProfessional landscaping equipment\u003c\/li\u003e\n\u003cli\u003eOutdoor power tools\u003c\/li\u003e\n\u003cli\u003eOther devices requiring 7.2V Ni-Cd\/Ni-MH battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSafety Information\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only the recommended charger designed for Ni-Cd or Ni-MH batteries. Do not overcharge or leave unattended during charging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight and heat sources. Keep away from children and pets.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not short-circuit, puncture, crush, or disassemble the battery. Avoid exposure to water or moisture.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate and store within the recommended temperature range. Extreme temperatures may affect performance and safety.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Do not dispose of in regular trash. Recycle according to local regulations for rechargeable batteries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect the battery for signs of damage, swelling, or leakage. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\u003ch2\u003eShipping \u0026amp; Transportation Notice\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product contains rechargeable batteries and may be subject to hazardous materials regulations during shipping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transportation:\u003c\/strong\u003e Batteries may be restricted or prohibited on certain air routes. International shipments may require additional documentation and handling fees.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging:\u003c\/strong\u003e All batteries are packaged according to applicable transportation safety regulations to ensure safe delivery.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Due to shipping restrictions, delivery times may be longer than standard products, especially for international orders.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper shipping labels and documentation will be applied to comply with carrier and regulatory requirements.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"Ni-Cd 1200mAh","offer_id":46383138373821,"sku":"FK1200-23430C6SH","price":17.37,"currency_code":"USD","in_stock":true},{"title":"Ni-Cd 1500mAh","offer_id":46383138406589,"sku":"FK1500-23430C6SH","price":18.33,"currency_code":"USD","in_stock":true},{"title":"Ni-Cd 1800mAh","offer_id":46383138439357,"sku":"FK1800-23430C6SH","price":19.72,"currency_code":"USD","in_stock":true},{"title":"Ni-MH 2200mAh","offer_id":46383138472125,"sku":"FH2200-23430P6SH","price":21.88,"currency_code":"USD","in_stock":true},{"title":"Ni-MH 3000mAh","offer_id":46383138504893,"sku":"FH3000-23430P6SH","price":26.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/s-l1600_1aeea085-172e-4cbb-b800-361f988ab356.jpg?v=1770262586"},{"product_id":"2pcs-1s-16s-3-2-51-2v-li-fe-lifepo4-battery-voltage-capacity-led-display-board","title":"1S-16S 3.2-51.2V Li-Fe LiFePO4 Battery Voltage Capacity Led Display Board","description":"\u003ch2\u003e\u003cstrong\u003eLiFePO4 Battery LED Display Board - 1S to 16S Li-Fe Capacity Indicator\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional battery voltage and capacity LED display board specifically designed for LiFePO4 (Lithium Iron Phosphate) batteries. Supports 1S to 16S configurations (3.2V to 51.2V). Features 5-level blue LED indicator displaying battery capacity from 10% to 100%. Compact size (60mm × 15mm × 2.8mm), ultra-lightweight (17g), and easy to install. 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border-collapse: collapse;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3.2V - 51.2V (1S to 16S)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLiFePO4 (Li-Fe)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDisplay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5-level blue LED indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCapacity Levels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10%, 30%, 50%, 75%, 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e60mm × 15mm × 2.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e~17g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLED Color\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLow (minimal battery drain)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e-20°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFMA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cstrong\u003eAvailable Configurations (1S to 16S)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eConfiguration\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eVoltage\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCommon Applications\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e1S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3.2V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSingle cell devices, small electronics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e2S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e6.4V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePortable devices, small battery packs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e3S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e9.6V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePower tools, RC models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e4S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e12.8V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e12V systems, solar, RV, marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e5S-7S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e16V-22.4V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eE-bikes, electric scooters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e8S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e25.6V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e24V systems, solar, electric vehicles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e9S-10S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e28.8V-32V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eE-bikes, electric scooters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e11S-13S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e35.2V-41.6V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e36V systems, e-bikes, solar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e14S-16S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e44.8V-51.2V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e48V systems, solar, electric vehicles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cstrong\u003eLED Display Levels\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLED Level\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eStatus\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e5 Blue LEDs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e100%\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFully charged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e4 Blue LEDs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e75%\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eGood charge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e3 Blue LEDs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e50%\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eHalf charged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e2 Blue LEDs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e30%\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLow - recharge soon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e1 Blue LED\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10%\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eVery low - recharge now\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCommon Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Energy Systems:\u003c\/strong\u003e Solar battery banks and off-grid power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRV \u0026amp; Marine:\u003c\/strong\u003e RV house batteries, boat batteries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Vehicles:\u003c\/strong\u003e E-bikes, electric scooters, golf carts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY LiFePO4 Packs:\u003c\/strong\u003e Custom battery pack projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12V\/24V\/48V Systems:\u003c\/strong\u003e Backup power, UPS systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Tools:\u003c\/strong\u003e LiFePO4-powered cordless tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Storage:\u003c\/strong\u003e Home energy storage systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAny LiFePO4 Application:\u003c\/strong\u003e Requiring battery level monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWhy LiFePO4-Specific Display?\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eLiFePO4 vs Li-ion Voltage Difference:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLiFePO4 nominal voltage: 3.2V per cell\u003c\/li\u003e\n\u003cli\u003eLi-ion nominal voltage: 3.6V-3.7V per cell\u003c\/li\u003e\n\u003cli\u003eThis display is calibrated for LiFePO4's unique voltage curve\u003c\/li\u003e\n\u003cli\u003eUsing Li-ion display on LiFePO4 will show incorrect capacity\u003c\/li\u003e\n\u003cli\u003eAccurate capacity indication for LiFePO4 batteries\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eInstallation Instructions\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eStep 1: Select Correct Configuration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCount the number of LiFePO4 cells in series (S) in your battery pack\u003c\/li\u003e\n\u003cli\u003eOrder the matching configuration (1S to 16S)\u003c\/li\u003e\n\u003cli\u003eVerify voltage matches your LiFePO4 battery pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eStep 2: Wiring Connection\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect positive (+) wire to battery positive terminal\u003c\/li\u003e\n\u003cli\u003eConnect negative (-) wire to battery negative terminal\u003c\/li\u003e\n\u003cli\u003eEnsure correct polarity (reverse polarity may damage the board)\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for your application\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eStep 3: Mounting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChoose a visible location for easy monitoring\u003c\/li\u003e\n\u003cli\u003eThe slim profile (2.8mm thick) fits in tight spaces\u003c\/li\u003e\n\u003cli\u003eMount using adhesive or screws\u003c\/li\u003e\n\u003cli\u003eEnsure blue LEDs are visible and accessible\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eStep 4: Testing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower on the LiFePO4 battery pack\u003c\/li\u003e\n\u003cli\u003eVerify blue LEDs illuminate correctly\u003c\/li\u003e\n\u003cli\u003eCheck that display shows appropriate capacity level\u003c\/li\u003e\n\u003cli\u003eTest at different charge levels to verify accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWhy Choose This LiFePO4 LED Display?\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003e1. LiFePO4 Calibrated:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpecifically designed for LiFePO4 voltage characteristics\u003c\/li\u003e\n\u003cli\u003eAccurate capacity indication for Li-Fe batteries\u003c\/li\u003e\n\u003cli\u003eWon't work correctly with Li-ion batteries (use Li-ion version instead)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e2. Wide Compatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports 1S to 16S configurations\u003c\/li\u003e\n\u003cli\u003eCovers voltage range from 3.2V to 51.2V\u003c\/li\u003e\n\u003cli\u003ePerfect for 12V, 24V, 36V, and 48V LiFePO4 systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e3. Compact \u0026amp; Lightweight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOnly 60mm × 15mm × 2.8mm - very slim\u003c\/li\u003e\n\u003cli\u003eWeighs just 17g\u003c\/li\u003e\n\u003cli\u003eFits in tight spaces\u003c\/li\u003e\n\u003cli\u003ePerfect for space-constrained applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e4. Clear Blue LED Display:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5-level blue LED display for easy reading\u003c\/li\u003e\n\u003cli\u003eBright LEDs visible in various lighting conditions\u003c\/li\u003e\n\u003cli\u003eInstant battery status at a glance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e5. Easy Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSimple 2-wire connection\u003c\/li\u003e\n\u003cli\u003eNo complex programming required\u003c\/li\u003e\n\u003cli\u003ePlug-and-play operation\u003c\/li\u003e\n\u003cli\u003eLow power consumption\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠️ Safety Precautions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ Do not use with Li-ion or LiPo batteries (use Li-ion version instead)\u003c\/li\u003e\n\u003cli\u003e❌ Do not connect to wrong voltage configuration\u003c\/li\u003e\n\u003cli\u003e❌ Ensure correct polarity when wiring\u003c\/li\u003e\n\u003cli\u003e✅ Only use with LiFePO4 (Li-Fe) batteries\u003c\/li\u003e\n\u003cli\u003e✅ Select the correct S configuration for your battery\u003c\/li\u003e\n\u003cli\u003e✅ Double-check wiring before powering on\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eUsage Tips:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe display shows approximate capacity based on LiFePO4 voltage curve\u003c\/li\u003e\n\u003cli\u003eAccuracy may vary under load vs no-load conditions\u003c\/li\u003e\n\u003cli\u003eUse as a general indicator, not precision measurement\u003c\/li\u003e\n\u003cli\u003eLiFePO4 has flatter discharge curve than Li-ion\u003c\/li\u003e\n\u003cli\u003eRecharge when display shows 30% or lower for battery longevity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWarranty \u0026amp; Support\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWe stand behind the quality of our products. If you experience any issues with the LED display board, please contact us for support. Always select the correct configuration for your LiFePO4 battery pack and follow installation instructions carefully.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"2S 6.4V","offer_id":46447701721277,"sku":"FPME02S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"3S 9.6V","offer_id":46447701754045,"sku":"FPME03S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"4S 12.8V","offer_id":46447701786813,"sku":"FPME04S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"5S 16.0V","offer_id":46447701819581,"sku":"FPME05S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"6S 19.2V","offer_id":46447701852349,"sku":"FPME06S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"7S 22.4V","offer_id":46447701885117,"sku":"FPME07S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"8S 25.6V","offer_id":46447701917885,"sku":"FPME08S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"9S 28.8V","offer_id":46447701950653,"sku":"FPME09S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"10S 32.0V","offer_id":46447701983421,"sku":"FPME10S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"11S 35.2V","offer_id":46447702016189,"sku":"FPME11S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"12S 38.4V","offer_id":46447702048957,"sku":"FPME12S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"13S 41.6V","offer_id":46447702081725,"sku":"FPME13S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"14S 44.8V","offer_id":46447702114493,"sku":"FPME14S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"15S 48.0V","offer_id":46447702147261,"sku":"FPME15S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"16S 51.2V","offer_id":46447702180029,"sku":"FPME16S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"1S 3.2V","offer_id":46447702212797,"sku":"FPME01S-5LED","price":8.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/57_caa702e7-a352-48af-9118-67c35e25c572.jpg?v=1772500089"},{"product_id":"3-6-59-2v-1-16s-li-ion-lipo-battery-voltage-capacity-led-display-board-indicator","title":"3.6-59.2V 1-16S Li-ion LiPo Battery Voltage Capacity LED Display Board Indicator","description":"\u003ch2\u003e\u003cstrong\u003eBattery Voltage LED Display Board - 1S to 16S Li-ion\/LiPo Capacity Indicator\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional battery voltage and capacity LED display board designed for lithium-ion and lithium-polymer batteries. Supports 1S to 16S configurations (3.6V to 59.2V). Features 5-level LED indicator displaying battery capacity from 10% to 100%. Perfect for DIY battery packs, electric vehicles, RC models, power tools, and any application requiring battery level monitoring. Lightweight (17g), easy to install, and provides clear visual feedback of battery status.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Supports 1S to 16S (3.6V to 59.2V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-Level LED Display:\u003c\/strong\u003e Shows 10%, 30%, 50%, 75%, 100% capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Works with Li-ion and LiPo batteries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Simple wiring, plug-and-play\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Lightweight:\u003c\/strong\u003e Only 5g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear Visual Feedback:\u003c\/strong\u003e Bright LED indicators\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Consumption:\u003c\/strong\u003e Minimal drain on battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Space-saving form factor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× Battery Voltage LED Display Board (configuration as selected)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3.6V - 59.2V (1S to 16S)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDisplay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5-level LED indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCapacity Levels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10%, 30%, 50%, 75%, 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e~17g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLow (minimal battery drain)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e-20°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFMA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eAvailable Configurations (1S to 16S)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eConfiguration\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eVoltage\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCommon Applications\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e1S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3.6V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSingle cell devices, small electronics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e2S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e7.2V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eRC cars, portable devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e3S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10.8V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePower tools, RC models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e4S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e14.4V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePower tools, RC aircraft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e5S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e18V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePower tools, e-bikes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e6S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e22.2V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eRC helicopters, drones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e7S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e25.2V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eE-bikes, electric scooters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e8S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e29.6V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eE-bikes, electric vehicles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e9S-10S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e33.3V-36V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eE-bikes, electric scooters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e11S-13S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e39.6V-48V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eE-bikes, electric motorcycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e14S-16S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e50.4V-59.2V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eElectric vehicles, high-power applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eLED Display Levels\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLED Level\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eStatus\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e5 LEDs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e100%\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFully charged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e4 LEDs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e75%\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eGood charge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e3 LEDs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e50%\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eHalf charged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e2 LEDs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e30%\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLow - recharge soon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e1 LED\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10%\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eVery low - recharge now\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eCommon Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY Battery Packs:\u003c\/strong\u003e Custom battery pack projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Vehicles:\u003c\/strong\u003e E-bikes, electric scooters, electric motorcycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRC Models:\u003c\/strong\u003e RC cars, boats, aircraft, drones, helicopters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Tools:\u003c\/strong\u003e Cordless drills, saws, and other battery-powered tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Systems:\u003c\/strong\u003e Solar battery banks and energy storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPS Systems:\u003c\/strong\u003e Uninterruptible power supply monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable Power:\u003c\/strong\u003e Power banks, portable generators\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAny Li-ion\/LiPo Application:\u003c\/strong\u003e Requiring battery level monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation Instructions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStep 1: Select Correct Configuration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCount the number of cells in series (S) in your battery pack\u003c\/li\u003e\n\u003cli\u003eOrder the matching configuration (1S to 16S)\u003c\/li\u003e\n\u003cli\u003eVerify voltage matches your battery pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 2: Wiring Connection\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect positive (+) wire to battery positive terminal\u003c\/li\u003e\n\u003cli\u003eConnect negative (-) wire to battery negative terminal\u003c\/li\u003e\n\u003cli\u003eEnsure correct polarity (reverse polarity may damage the board)\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for your application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 3: Mounting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChoose a visible location for easy monitoring\u003c\/li\u003e\n\u003cli\u003eMount using adhesive or screws (check board for mounting holes)\u003c\/li\u003e\n\u003cli\u003eEnsure LEDs are visible and accessible\u003c\/li\u003e\n\u003cli\u003eKeep away from heat sources\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 4: Testing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower on the battery pack\u003c\/li\u003e\n\u003cli\u003eVerify LEDs illuminate correctly\u003c\/li\u003e\n\u003cli\u003eCheck that display shows appropriate capacity level\u003c\/li\u003e\n\u003cli\u003eTest at different charge levels to verify accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose This LED Display Board?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1. Wide Compatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports 1S to 16S configurations\u003c\/li\u003e\n\u003cli\u003eWorks with both Li-ion and LiPo batteries\u003c\/li\u003e\n\u003cli\u003eCovers voltage range from 3.6V to 59.2V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e2. Clear Visual Feedback:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5-level LED display for easy reading\u003c\/li\u003e\n\u003cli\u003eBright LEDs visible in various lighting conditions\u003c\/li\u003e\n\u003cli\u003eInstant battery status at a glance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e3. Easy Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSimple 2-wire connection\u003c\/li\u003e\n\u003cli\u003eNo complex programming required\u003c\/li\u003e\n\u003cli\u003ePlug-and-play operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e4. Ultra-Lightweight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOnly 17g - minimal weight addition\u003c\/li\u003e\n\u003cli\u003ePerfect for weight-sensitive applications\u003c\/li\u003e\n\u003cli\u003eIdeal for RC models and drones\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e5. Low Power Consumption:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMinimal drain on battery\u003c\/li\u003e\n\u003cli\u003eWon't significantly reduce runtime\u003c\/li\u003e\n\u003cli\u003eEfficient LED technology\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Safety Precautions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ Do not connect to wrong voltage configuration\u003c\/li\u003e\n\u003cli\u003e❌ Ensure correct polarity when wiring\u003c\/li\u003e\n\u003cli\u003e❌ Do not expose to water or moisture\u003c\/li\u003e\n\u003cli\u003e✅ Select the correct S configuration for your battery\u003c\/li\u003e\n\u003cli\u003e✅ Double-check wiring before powering on\u003c\/li\u003e\n\u003cli\u003e✅ Keep away from heat sources\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUsage Tips:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe display shows approximate capacity based on voltage\u003c\/li\u003e\n\u003cli\u003eAccuracy may vary under load vs no-load conditions\u003c\/li\u003e\n\u003cli\u003eUse as a general indicator, not precision measurement\u003c\/li\u003e\n\u003cli\u003eRecharge when display shows 30% or lower for battery longevity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWarranty \u0026amp; Support\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWe stand behind the quality of our products. If you experience any issues with the LED display board, please contact us for support. Always select the correct configuration for your battery pack and follow installation instructions carefully.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"6S 22.2V","offer_id":46447702343869,"sku":"FPML06S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"8S 29.6V","offer_id":46447702376637,"sku":"FPML08S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"9S 33.3V","offer_id":46447702409405,"sku":"FPML09S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"12S 44.4V","offer_id":46447702442173,"sku":"FPML12S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"1S 3.6V","offer_id":46447702474941,"sku":"FPML01S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"2S 7.2V","offer_id":46447702507709,"sku":"FPML02S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"3S 10.8V","offer_id":46447702540477,"sku":"FPML03S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"4S 14.4V","offer_id":46447702573245,"sku":"FPML04S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"5S 18V","offer_id":46447702606013,"sku":"FPML05S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"7S 25.2V","offer_id":46447702638781,"sku":"FPML07S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"10S 36.0V","offer_id":46447702671549,"sku":"FPML10S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"11S 39.6V","offer_id":46447702704317,"sku":"FPML11S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"13S 48.0V","offer_id":46447702737085,"sku":"FPML13S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"14S 50.4V","offer_id":46447702769853,"sku":"FPML14S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"15S 54.0V","offer_id":46447702802621,"sku":"FPML15S-5LED","price":8.95,"currency_code":"USD","in_stock":true},{"title":"16S 59.2V","offer_id":46447702835389,"sku":"FPML16S-5LED","price":8.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/57_b93923f6-4872-4172-910f-c5078bb06d5f.jpg?v=1772500180"},{"product_id":"100x-3-7v-li-ion-lipo-rechargeable-battery-protect-circuit-management-board-pcm","title":"FMA 1S 3.6V 3.7V Li-ion Battery Protection Board BMS PCM 2A (100pcs Wholesale)","description":"\u003ch2\u003e\u003cstrong\u003eFMA 1S 3.6V\/3.7V Li-ion Battery Protection Circuit Board (BMS\/PCM) - 100 Pieces Wholesale Pack\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional-grade Battery Management System (BMS) protection circuit boards designed for single-cell (1S) lithium-ion and lithium-polymer batteries. This wholesale pack includes 100 protection boards, providing comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions. Ideal for manufacturers, repair shops, and large-scale DIY projects.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1S Configuration:\u003c\/strong\u003e Designed for single-cell lithium battery packs (3.6V nominal, 3.7V typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWholesale Pack:\u003c\/strong\u003e 100 pieces per order for commercial and bulk applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, and short circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2A Continuous Current:\u003c\/strong\u003e Supports up to 2A continuous discharge current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Compact Design:\u003c\/strong\u003e Minimal footprint ideal for very small battery applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reliability:\u003c\/strong\u003e Quality components ensure long-term stable operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Value:\u003c\/strong\u003e Wholesale pricing offers exceptional value for bulk purchases\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial Grade:\u003c\/strong\u003e Perfect for manufacturers, repair centers, and resellers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e100× FMA 1S BMS Protection Circuit Boards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML01S1_a613ec3b-2d6d-426c-a104-bbd6cd5a3111.png?v=1772596083\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML01S2_d812d1a3-f7bd-4c76-9696-c6e1bbf5473d.png?v=1772596083\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e1S (single cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTypical Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3.7V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFull Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.25V ± 0.05V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V ± 0.1V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eQuantity per Pack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e100 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight (per board)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 10g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturers:\u003c\/strong\u003e Battery pack production and assembly lines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRepair Shops:\u003c\/strong\u003e Electronics repair and battery replacement services\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResellers:\u003c\/strong\u003e Retail and online sales of battery protection components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM\/ODM:\u003c\/strong\u003e Original equipment and design manufacturers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEducational Institutions:\u003c\/strong\u003e Electronics labs and training programs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge-Scale Projects:\u003c\/strong\u003e Commercial installations and bulk deployments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-cell (18650, 18500, 14500, etc.) lithium battery protection\u003c\/li\u003e\n\u003cli\u003ePortable power bank manufacturing\u003c\/li\u003e\n\u003cli\u003eLED flashlight production\u003c\/li\u003e\n\u003cli\u003ePortable speaker and audio device assembly\u003c\/li\u003e\n\u003cli\u003eWearable device manufacturing\u003c\/li\u003e\n\u003cli\u003eIoT device and sensor production\u003c\/li\u003e\n\u003cli\u003eCamera accessory manufacturing\u003c\/li\u003e\n\u003cli\u003eMedical equipment battery pack assembly\u003c\/li\u003e\n\u003cli\u003eBattery repair and replacement services\u003c\/li\u003e\n\u003cli\u003eCustom battery pack production\u003c\/li\u003e\n\u003cli\u003eElectronics manufacturing and assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects charging when the cell reaches the overcharge protection voltage (4.25V ± 0.05V), preventing battery damage from excessive voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Cuts off discharge when cell voltage drops to the protection threshold (2.5V ± 0.1V), preventing deep discharge that can permanently damage lithium cells.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Monitors discharge current and disconnects the load if current exceeds safe limits (2A continuous), protecting both the battery and connected devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly disconnects the battery in the event of a short circuit, preventing fire hazards and equipment damage.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that the battery cell voltage is within safe range (2.5V-4.2V)\u003c\/li\u003e\n\u003cli\u003ePrepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing\u003c\/li\u003e\n\u003cli\u003eWork in a clean, well-ventilated area with proper ESD protection\u003c\/li\u003e\n\u003cli\u003eWear safety glasses and insulated gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect the positive terminal of the battery to B+ on the protection board\u003c\/li\u003e\n\u003cli\u003eConnect the negative terminal of the battery to B- on the protection board\u003c\/li\u003e\n\u003cli\u003eOutput terminals (P+ and P-) connect to your device or charging circuit\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for connections (minimum 22AWG for 2A)\u003c\/li\u003e\n\u003cli\u003eDouble-check polarity before making final connections\u003c\/li\u003e\n\u003cli\u003eEnsure all solder joints are clean and secure with good electrical contact\u003c\/li\u003e\n\u003cli\u003eInsulate all connections with heat-shrink tubing to prevent shorts\u003c\/li\u003e\n\u003cli\u003eTest voltage with a multimeter before connecting to devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWholesale Pack Advantages\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Value:\u003c\/strong\u003e This 100-piece wholesale pack offers the best per-unit pricing for commercial buyers, manufacturers, and large-scale projects. Significant cost savings compared to smaller quantities.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConsistent Quality:\u003c\/strong\u003e All 100 boards come from the same production batch, ensuring consistent performance and specifications across your entire project or inventory.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInventory Management:\u003c\/strong\u003e Bulk quantity ensures you have adequate stock for ongoing production, repairs, or sales without frequent reordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBusiness Ready:\u003c\/strong\u003e Perfect for businesses that need reliable, cost-effective components for battery pack assembly, repair services, or resale.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e Each BMS board is rated for 2A continuous discharge current. Ensure your application does not exceed this current limit. For higher current applications, consider our multi-cell (2S, 3S, 4S, etc.) BMS boards with higher current ratings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3.7V Standard Voltage:\u003c\/strong\u003e This 1S BMS is ideal for 3.7V single-cell battery applications, which is the most common voltage for 18650, 18500, 14500, and similar lithium-ion cells used in flashlights, power banks, and portable devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Customization:\u003c\/strong\u003e We ship the standard configuration as shown in the main product images. For custom connector requirements or special wire arrangements for large orders, please contact us to discuss your specific needs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This BMS is designed for single-cell lithium-ion or lithium-polymer batteries with nominal voltage of 3.6V\/3.7V. Ensure your battery matches before purchase. Using this BMS with incorrect battery types can result in improper protection and potential safety hazards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuality Assurance:\u003c\/strong\u003e Each board undergoes quality control testing before shipment. However, we recommend testing a sample from each batch before full-scale deployment in your production or projects.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose FMA BMS Products?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFMA specializes in high-quality battery management solutions for lithium-ion and lithium-polymer battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards. Our wholesale packs offer exceptional value for commercial buyers while maintaining the same high quality standards.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCustom BMS Solutions \u0026amp; Bulk Orders\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNeed even larger quantities, different cell configurations, current ratings, or custom features? We offer custom BMS design and manufacturing services with flexible MOQ options. Contact us with your specifications including cell count, voltage requirements, current ratings, quantity needs, and any special features, and we'll create a tailored solution for your business.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only chargers designed for single-cell lithium batteries with proper voltage (4.2V) and current specifications. Never exceed the maximum charging voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within recommended temperature range. Avoid extreme temperatures during charging and discharging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Transportation Notice\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product is designed for use with lithium batteries and may be subject to shipping restrictions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging Compliance:\u003c\/strong\u003e All shipments comply with applicable packaging requirements for electronic components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"3.7V 2A 3x15mm","offer_id":46447767093437,"sku":"FPML01S020F033x100","price":58.0,"currency_code":"USD","in_stock":true},{"title":"3.7V 2.5A 4.4x22.5mm","offer_id":46447767126205,"sku":"FPML01S025F293x100","price":68.0,"currency_code":"USD","in_stock":true},{"title":"3.7V 2.5A 14mm","offer_id":46447767158973,"sku":"FPML01S025R014x100","price":80.0,"currency_code":"USD","in_stock":true},{"title":"3.7V 3A 17mm","offer_id":46447767191741,"sku":"FPML01S030R869x100","price":68.0,"currency_code":"USD","in_stock":true},{"title":"3.7V 4A 5x28mm","offer_id":46447767224509,"sku":"FPML01S040F294x100","price":125.0,"currency_code":"USD","in_stock":true},{"title":"3.7V 4A 16.1mm","offer_id":46447767257277,"sku":"FPML01S040R548x100","price":80.0,"currency_code":"USD","in_stock":true},{"title":"3.7V 5A 5x38mm","offer_id":46447767290045,"sku":"FPML01S050F971x100","price":70.0,"currency_code":"USD","in_stock":true},{"title":"3.7V 10A 17x34.5mm","offer_id":46447767322813,"sku":"FPML01S100F084x100","price":220.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_2f3cf509-1487-4c92-a57a-3451b03dfe70.jpg?v=1772508933"},{"product_id":"10pcs-protect-circuit-management-board-pcm-for-1s-3-6v-3-7v-li-ion-li-po-battery","title":"FMA 1S 3.6V 3.7V Li-ion Battery Protection Board BMS PCM 2A (10pcs)","description":"\u003ch2\u003e\u003cstrong\u003eFMA 1S 3.6V\/3.7V Li-ion Battery Protection Circuit Board (BMS\/PCM) - 10 Pieces Pack\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional-grade Battery Management System (BMS) protection circuit boards designed for single-cell (1S) lithium-ion and lithium-polymer batteries. This value pack includes 10 protection boards, providing comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions for various small-scale applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1S Configuration:\u003c\/strong\u003e Designed for single-cell lithium battery packs (3.6V nominal, 3.7V typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValue Pack:\u003c\/strong\u003e 10 pieces per order for multiple projects or bulk applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, and short circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2A Continuous Current:\u003c\/strong\u003e Supports up to 2A continuous discharge current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Compact Design:\u003c\/strong\u003e Minimal footprint ideal for very small battery applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reliability:\u003c\/strong\u003e Quality components ensure long-term stable operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost-Effective:\u003c\/strong\u003e Bulk pack offers excellent value for multiple projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e10× FMA 1S BMS Protection Circuit Boards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e1S (single cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTypical Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3.7V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFull Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.25V ± 0.05V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V ± 0.1V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eQuantity per Pack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight (per board)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 10g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML01S1_a613ec3b-2d6d-426c-a104-bbd6cd5a3111.png?v=1772596083\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML01S2_d812d1a3-f7bd-4c76-9696-c6e1bbf5473d.png?v=1772596083\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-cell (18650, 18500, 14500, etc.) lithium battery protection\u003c\/li\u003e\n\u003cli\u003ePortable power banks and battery packs\u003c\/li\u003e\n\u003cli\u003eSmall handheld electronic devices\u003c\/li\u003e\n\u003cli\u003eLED flashlights and lighting systems\u003c\/li\u003e\n\u003cli\u003ePortable speakers and audio devices\u003c\/li\u003e\n\u003cli\u003eWearable devices and smart accessories\u003c\/li\u003e\n\u003cli\u003eIoT devices and sensors\u003c\/li\u003e\n\u003cli\u003eCamera accessories and photography equipment\u003c\/li\u003e\n\u003cli\u003eMedical equipment battery packs\u003c\/li\u003e\n\u003cli\u003eDIY electronics projects\u003c\/li\u003e\n\u003cli\u003eCustom battery pack projects\u003c\/li\u003e\n\u003cli\u003eBattery rebuilds and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects charging when the cell reaches the overcharge protection voltage (4.25V ± 0.05V), preventing battery damage from excessive voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Cuts off discharge when cell voltage drops to the protection threshold (2.5V ± 0.1V), preventing deep discharge that can permanently damage lithium cells.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Monitors discharge current and disconnects the load if current exceeds safe limits (2A continuous), protecting both the battery and connected devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly disconnects the battery in the event of a short circuit, preventing fire hazards and equipment damage.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that the battery cell voltage is within safe range (2.5V-4.2V)\u003c\/li\u003e\n\u003cli\u003ePrepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing\u003c\/li\u003e\n\u003cli\u003eWork in a clean, well-ventilated area with proper ESD protection\u003c\/li\u003e\n\u003cli\u003eWear safety glasses and insulated gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect the positive terminal of the battery to B+ on the protection board\u003c\/li\u003e\n\u003cli\u003eConnect the negative terminal of the battery to B- on the protection board\u003c\/li\u003e\n\u003cli\u003eOutput terminals (P+ and P-) connect to your device or charging circuit\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for connections (minimum 22AWG for 2A)\u003c\/li\u003e\n\u003cli\u003eDouble-check polarity before making final connections\u003c\/li\u003e\n\u003cli\u003eEnsure all solder joints are clean and secure with good electrical contact\u003c\/li\u003e\n\u003cli\u003eInsulate all connections with heat-shrink tubing to prevent shorts\u003c\/li\u003e\n\u003cli\u003eTest voltage with a multimeter before connecting to devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Skills:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUnderstanding of lithium battery chemistry and safety\u003c\/li\u003e\n\u003cli\u003eProficiency in soldering and electrical connections\u003c\/li\u003e\n\u003cli\u003eAbility to read wiring diagrams and follow technical specifications\u003c\/li\u003e\n\u003cli\u003eKnowledge of proper battery handling and safety protocols\u003c\/li\u003e\n\u003cli\u003eExperience with multimeter usage and voltage testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should NOT Attempt Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndividuals without electrical or electronics experience\u003c\/li\u003e\n\u003cli\u003eThose unfamiliar with lithium battery safety requirements\u003c\/li\u003e\n\u003cli\u003eAnyone without proper tools or workspace\u003c\/li\u003e\n\u003cli\u003eMinors without qualified adult supervision\u003c\/li\u003e\n\u003cli\u003eIf unsure about any aspect of installation, consult a professional technician\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBulk Pack Advantage:\u003c\/strong\u003e This 10-piece pack is ideal for hobbyists, DIY enthusiasts, repair shops, or anyone working on multiple battery projects. The bulk quantity offers excellent value and ensures you have spare boards for future projects.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e Each BMS board is rated for 2A continuous discharge current. Ensure your application does not exceed this current limit. For higher current applications, consider our multi-cell (2S, 3S, 4S, etc.) BMS boards with higher current ratings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3.7V Standard Voltage:\u003c\/strong\u003e This 1S BMS is ideal for 3.7V single-cell battery applications, which is the most common voltage for 18650, 18500, 14500, and similar lithium-ion cells used in flashlights, power banks, and portable devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Customization:\u003c\/strong\u003e We ship the standard configuration as shown in the main product images. If you require specific connectors or custom wire arrangements, please refer to the product gallery images and contact us with your requirements before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This BMS is designed for single-cell lithium-ion or lithium-polymer batteries with nominal voltage of 3.6V\/3.7V. Ensure your battery matches before purchase. Using this BMS with incorrect battery types can result in improper protection and potential safety hazards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTesting:\u003c\/strong\u003e After installation, perform thorough testing including voltage checks, charge\/discharge cycles, and protection function verification before putting the battery into regular use.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose FMA BMS Products?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFMA specializes in high-quality battery management solutions for lithium-ion and lithium-polymer battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCustom BMS Solutions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNeed a different cell configuration, current rating, or custom features? We offer custom BMS design and manufacturing services. Contact us with your specifications including cell count, voltage requirements, current ratings, and any special features you need, and we'll create a tailored solution for your application.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only chargers designed for single-cell lithium batteries with proper voltage (4.2V) and current specifications. Never exceed the maximum charging voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within recommended temperature range. Avoid extreme temperatures during charging and discharging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Transportation Notice\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product is designed for use with lithium batteries and may be subject to shipping restrictions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging Compliance:\u003c\/strong\u003e All shipments comply with applicable packaging requirements for electronic components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"3.7V 2A 3x15mm","offer_id":46447768961213,"sku":"FPML01S020F033x010","price":11.7,"currency_code":"USD","in_stock":true},{"title":"3.7V 2.5A 4.4x22.5mm","offer_id":46447768993981,"sku":"FPML01S025F293x010","price":12.56,"currency_code":"USD","in_stock":true},{"title":"3.7V 2.5A 14mm","offer_id":46447769026749,"sku":"FPML01S025R014x010","price":12.56,"currency_code":"USD","in_stock":true},{"title":"3.7V 3A 17mm","offer_id":46447769059517,"sku":"FPML01S030R869x010","price":12.59,"currency_code":"USD","in_stock":true},{"title":"3.7V 4A 5x28mm","offer_id":46447769092285,"sku":"FPML01S040F294x010","price":17.49,"currency_code":"USD","in_stock":true},{"title":"3.7V 4A 16.1mm","offer_id":46447769125053,"sku":"FPML01S040R548x010","price":17.49,"currency_code":"USD","in_stock":true},{"title":"3.7V 5A 5x38mm","offer_id":46447769157821,"sku":"FPML01S050F971x010","price":14.2,"currency_code":"USD","in_stock":true},{"title":"3.7V 10A 17x34.5mm","offer_id":46447769190589,"sku":"FPML01S100F084x010","price":29.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_abca9bb9-7830-46be-a474-88d2bbb72480.jpg?v=1772509290"},{"product_id":"7-2v-7-4v-li-ion-li-po-battery-protect-circuit-management-module-board-pcm-bms","title":"FMA 2S 7.2V 7.4V Li-ion Li-Po Rechargeable Battery Protection Board BMS PCM 2.5A","description":"\u003ch2\u003e\u003cstrong\u003eFMA 2S 7.2V Li-ion Battery Protection Circuit Board (BMS\/PCM)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional-grade Battery Management System (BMS) protection circuit board designed for 2S lithium-ion and lithium-polymer battery packs. Provides comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions to ensure safe and reliable battery operation for various small-scale applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2S Configuration:\u003c\/strong\u003e Designed for 2-cell series lithium battery packs (7.2V nominal, 7.4V typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, and short circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.5A Continuous Current:\u003c\/strong\u003e Supports up to 2.5A continuous discharge current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Compact Design:\u003c\/strong\u003e Minimal footprint ideal for very small battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reliability:\u003c\/strong\u003e Quality components ensure long-term stable operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e Suitable for portable devices, small electronics, and custom battery projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× FMA 2S BMS Protection Circuit Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2S (2 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e7.2V (3.6V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTypical Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e7.4V (3.7V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFull Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e8.4V (4.2V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.25V ± 0.05V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V ± 0.1V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 100g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML02S1.png?v=1772594382\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML02S2.png?v=1772594382\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2S lithium-ion battery pack protection\u003c\/li\u003e\n\u003cli\u003e7.2V\/7.4V portable device batteries\u003c\/li\u003e\n\u003cli\u003eSmall portable power banks\u003c\/li\u003e\n\u003cli\u003eHandheld electronic devices\u003c\/li\u003e\n\u003cli\u003eLED flashlights and lighting systems\u003c\/li\u003e\n\u003cli\u003ePortable speakers and audio devices\u003c\/li\u003e\n\u003cli\u003eRC hobby applications (small drones, cars)\u003c\/li\u003e\n\u003cli\u003eWearable devices and smart accessories\u003c\/li\u003e\n\u003cli\u003eCamera accessories and photography equipment\u003c\/li\u003e\n\u003cli\u003eMedical equipment battery packs\u003c\/li\u003e\n\u003cli\u003eCustom battery pack projects\u003c\/li\u003e\n\u003cli\u003eDIY battery rebuilds and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects charging when any cell reaches the overcharge protection voltage (4.25V ± 0.05V), preventing battery damage from excessive voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Cuts off discharge when any cell voltage drops to the protection threshold (2.5V ± 0.1V), preventing deep discharge that can permanently damage lithium cells.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Monitors discharge current and disconnects the load if current exceeds safe limits (2.5A continuous), protecting both the battery and connected devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly disconnects the battery in the event of a short circuit, preventing fire hazards and equipment damage.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure both battery cells are balanced and at similar voltage levels (within 0.1V)\u003c\/li\u003e\n\u003cli\u003eVerify that the battery pack voltage matches the BMS specification (2S configuration)\u003c\/li\u003e\n\u003cli\u003ePrepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing\u003c\/li\u003e\n\u003cli\u003eWork in a clean, well-ventilated area with proper ESD protection\u003c\/li\u003e\n\u003cli\u003eWear safety glasses and insulated gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect balance wires to each cell in the correct sequence (B0 to B2, refer to product images)\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for main power connections (minimum 22AWG for 2.5A)\u003c\/li\u003e\n\u003cli\u003eDouble-check polarity before making final connections (positive to P+, negative to P-)\u003c\/li\u003e\n\u003cli\u003eEnsure all solder joints are clean and secure with good electrical contact\u003c\/li\u003e\n\u003cli\u003eInsulate all connections with heat-shrink tubing to prevent shorts\u003c\/li\u003e\n\u003cli\u003eTest voltage at each balance point with a multimeter before powering on\u003c\/li\u003e\n\u003cli\u003eVerify total pack voltage is within expected range (7.2V-8.4V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Skills:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUnderstanding of lithium battery chemistry and safety\u003c\/li\u003e\n\u003cli\u003eProficiency in soldering and electrical connections\u003c\/li\u003e\n\u003cli\u003eAbility to read wiring diagrams and follow technical specifications\u003c\/li\u003e\n\u003cli\u003eKnowledge of proper battery handling and safety protocols\u003c\/li\u003e\n\u003cli\u003eExperience with multimeter usage and voltage testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should NOT Attempt Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndividuals without electrical or electronics experience\u003c\/li\u003e\n\u003cli\u003eThose unfamiliar with lithium battery safety requirements\u003c\/li\u003e\n\u003cli\u003eAnyone without proper tools or workspace\u003c\/li\u003e\n\u003cli\u003eMinors without qualified adult supervision\u003c\/li\u003e\n\u003cli\u003eIf unsure about any aspect of installation, consult a professional technician\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e This BMS is rated for 2.5A continuous discharge current. Ensure your application does not exceed this current limit. For higher current applications, consider our 3S, 4S, 5S, or higher configuration BMS boards with higher current ratings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7.4V Standard Voltage:\u003c\/strong\u003e This 2S BMS is ideal for 7.4V battery applications, which is a common voltage standard for portable electronics, small RC models, LED flashlights, and handheld devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Customization:\u003c\/strong\u003e We ship the standard configuration as shown in the main product images. If you require specific connectors or custom wire arrangements, please refer to the product gallery images and contact us with your requirements before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This BMS is designed for 2S lithium-ion or lithium-polymer battery packs with nominal voltage of 7.2V\/7.4V. Ensure your battery configuration matches before purchase. Using this BMS with incorrect battery configurations can result in improper protection and potential safety hazards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTesting:\u003c\/strong\u003e After installation, perform thorough testing including voltage checks at all balance points, charge\/discharge cycles, and protection function verification before putting the battery pack into regular use.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose FMA BMS Products?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFMA specializes in high-quality battery management solutions for lithium-ion and lithium-polymer battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCustom BMS Solutions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNeed a different cell configuration, current rating, or custom features? We offer custom BMS design and manufacturing services. Contact us with your specifications including cell count, voltage requirements, current ratings, and any special features you need, and we'll create a tailored solution for your application.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only chargers designed for 2S lithium battery packs with proper voltage (8.4V) and current specifications. Never exceed the maximum charging voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within recommended temperature range. Avoid extreme temperatures during charging and discharging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Transportation Notice\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product is designed for use with lithium batteries and may be subject to shipping restrictions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging Compliance:\u003c\/strong\u003e All shipments comply with applicable packaging requirements for electronic components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"7.4V 2.5A 16x33.5mm","offer_id":46447912255677,"sku":"FPML02S025F027","price":7.25,"currency_code":"USD","in_stock":true},{"title":"7.4V 3A 6x46mm","offer_id":46447912288445,"sku":"FPML02S030F128","price":7.18,"currency_code":"USD","in_stock":true},{"title":"7.4V 6A 10x30mm","offer_id":46447912321213,"sku":"FPML02S060F157","price":7.67,"currency_code":"USD","in_stock":true},{"title":"7.4V 8A 32x32mm","offer_id":46447912353981,"sku":"FPML02S080FA37","price":7.7,"currency_code":"USD","in_stock":true},{"title":"7.4V 10A 45x21mm","offer_id":46447912386749,"sku":"FPML02S100W007","price":8.99,"currency_code":"USD","in_stock":true},{"title":"7.4V 13A 35x18mm","offer_id":46447912419517,"sku":"FPML02S130W008","price":10.96,"currency_code":"USD","in_stock":true},{"title":"7.4V 15A 50x21mm","offer_id":46447912452285,"sku":"FPML02S150W009","price":9.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_46b667a9-065a-4dbd-913d-651d4454addf.jpg?v=1772513026"},{"product_id":"3s-10-8v-11-1v-li-ion-or-li-po-battery-protect-circuit-management-board-pcm-bms","title":"FMA 3S 10.8V 11.1V Li-ion Li-Po Battery Protection Board BMS PCM 4A","description":"\u003ch2\u003e\u003cstrong\u003eFMA 3S 10.8V Li-ion Battery Protection Circuit Board (BMS\/PCM)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional-grade Battery Management System (BMS) protection circuit board designed for 3S lithium-ion and lithium-polymer battery packs. Provides comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions to ensure safe and reliable battery operation for various applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3S Configuration:\u003c\/strong\u003e Designed for 3-cell series lithium battery packs (10.8V nominal, 11.1V typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, and short circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4A Continuous Current:\u003c\/strong\u003e Supports up to 4A continuous discharge current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Compact Design:\u003c\/strong\u003e Space-efficient PCB layout ideal for small battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reliability:\u003c\/strong\u003e Quality components ensure long-term stable operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e Suitable for portable devices, small electronics, and custom battery projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× FMA 3S BMS Protection Circuit Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3S (3 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10.8V (3.6V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTypical Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e11.1V (3.7V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFull Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e12.6V (4.2V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.25V ± 0.05V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V ± 0.1V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 100g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML03S1.png?v=1772593539\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML03S2.png?v=1772593539\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML03S3.png?v=1772593539\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3S lithium-ion battery pack protection\u003c\/li\u003e\n\u003cli\u003e10.8V\/11.1V power tool battery replacements\u003c\/li\u003e\n\u003cli\u003ePortable power banks and battery packs\u003c\/li\u003e\n\u003cli\u003eSmall electronic devices\u003c\/li\u003e\n\u003cli\u003eLED lighting systems\u003c\/li\u003e\n\u003cli\u003ePortable speakers and audio devices\u003c\/li\u003e\n\u003cli\u003eRC hobby applications (drones, cars, boats)\u003c\/li\u003e\n\u003cli\u003eCamera and photography equipment\u003c\/li\u003e\n\u003cli\u003eMedical equipment battery packs\u003c\/li\u003e\n\u003cli\u003eCustom battery pack projects\u003c\/li\u003e\n\u003cli\u003eDIY battery rebuilds and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects charging when any cell reaches the overcharge protection voltage (4.25V ± 0.05V), preventing battery damage from excessive voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Cuts off discharge when any cell voltage drops to the protection threshold (2.5V ± 0.1V), preventing deep discharge that can permanently damage lithium cells.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Monitors discharge current and disconnects the load if current exceeds safe limits (4A continuous), protecting both the battery and connected devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly disconnects the battery in the event of a short circuit, preventing fire hazards and equipment damage.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure all battery cells are balanced and at similar voltage levels (within 0.1V)\u003c\/li\u003e\n\u003cli\u003eVerify that the battery pack voltage matches the BMS specification (3S configuration)\u003c\/li\u003e\n\u003cli\u003ePrepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing\u003c\/li\u003e\n\u003cli\u003eWork in a clean, well-ventilated area with proper ESD protection\u003c\/li\u003e\n\u003cli\u003eWear safety glasses and insulated gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect balance wires to each cell in the correct sequence (B0 to B3, refer to product images)\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for main power connections (minimum 20AWG for 4A)\u003c\/li\u003e\n\u003cli\u003eDouble-check polarity before making final connections (positive to P+, negative to P-)\u003c\/li\u003e\n\u003cli\u003eEnsure all solder joints are clean and secure with good electrical contact\u003c\/li\u003e\n\u003cli\u003eInsulate all connections with heat-shrink tubing to prevent shorts\u003c\/li\u003e\n\u003cli\u003eTest voltage at each balance point with a multimeter before powering on\u003c\/li\u003e\n\u003cli\u003eVerify total pack voltage is within expected range (10.8V-12.6V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Skills:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUnderstanding of lithium battery chemistry and safety\u003c\/li\u003e\n\u003cli\u003eProficiency in soldering and electrical connections\u003c\/li\u003e\n\u003cli\u003eAbility to read wiring diagrams and follow technical specifications\u003c\/li\u003e\n\u003cli\u003eKnowledge of proper battery handling and safety protocols\u003c\/li\u003e\n\u003cli\u003eExperience with multimeter usage and voltage testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should NOT Attempt Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndividuals without electrical or electronics experience\u003c\/li\u003e\n\u003cli\u003eThose unfamiliar with lithium battery safety requirements\u003c\/li\u003e\n\u003cli\u003eAnyone without proper tools or workspace\u003c\/li\u003e\n\u003cli\u003eMinors without qualified adult supervision\u003c\/li\u003e\n\u003cli\u003eIf unsure about any aspect of installation, consult a professional technician\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e This BMS is rated for 4A continuous discharge current. Ensure your application does not exceed this current limit. For higher current applications, consider our 4S, 5S, 7S, 10S, or 12S BMS boards with higher current ratings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e11.1V Standard Voltage:\u003c\/strong\u003e This 3S BMS is ideal for 11.1V battery applications, which is a common voltage standard for portable electronics, RC models, and small power tools.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Customization:\u003c\/strong\u003e We ship the standard configuration as shown in the main product images. If you require specific connectors or custom wire arrangements, please refer to the product gallery images and contact us with your requirements before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This BMS is designed for 3S lithium-ion or lithium-polymer battery packs with nominal voltage of 10.8V\/11.1V. Ensure your battery configuration matches before purchase. Using this BMS with incorrect battery configurations can result in improper protection and potential safety hazards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTesting:\u003c\/strong\u003e After installation, perform thorough testing including voltage checks at all balance points, charge\/discharge cycles, and protection function verification before putting the battery pack into regular use.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose FMA BMS Products?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFMA specializes in high-quality battery management solutions for lithium-ion and lithium-polymer battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCustom BMS Solutions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNeed a different cell configuration, current rating, or custom features? We offer custom BMS design and manufacturing services. Contact us with your specifications including cell count, voltage requirements, current ratings, and any special features you need, and we'll create a tailored solution for your application.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only chargers designed for 3S lithium battery packs with proper voltage (12.6V) and current specifications. Never exceed the maximum charging voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within recommended temperature range. Avoid extreme temperatures during charging and discharging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Transportation Notice\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product is designed for use with lithium batteries and may be subject to shipping restrictions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging Compliance:\u003c\/strong\u003e All shipments comply with applicable packaging requirements for electronic components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"11.1V 8A 15x48mm","offer_id":46447912485053,"sku":"FPML03S040F936","price":8.32,"currency_code":"USD","in_stock":true},{"title":"11.1V 4A 30x32mm","offer_id":46447912517821,"sku":"FPML03S040T066","price":8.73,"currency_code":"USD","in_stock":true},{"title":"11.1V 7A 15x40mm","offer_id":46447912550589,"sku":"FPML03S070F612","price":8.74,"currency_code":"USD","in_stock":true},{"title":"11.1V 16A 62x31mm","offer_id":46447912583357,"sku":"FPML03S160W011","price":12.3,"currency_code":"USD","in_stock":true},{"title":"11.1V 21A 93x45mm","offer_id":46447912616125,"sku":"FPML03S210W013","price":15.14,"currency_code":"USD","in_stock":true},{"title":"11.1V 21A 97x58mm","offer_id":46447912648893,"sku":"FPML03S210W014","price":17.73,"currency_code":"USD","in_stock":true},{"title":"11.1V 40A 80x60mm","offer_id":46447912681661,"sku":"FPML03S400FB19","price":23.92,"currency_code":"USD","in_stock":true},{"title":"11.1V 40A 130x70mm","offer_id":46447912714429,"sku":"FPML03S400F674","price":31.42,"currency_code":"USD","in_stock":true},{"title":"11.1V 80A 54x123mm","offer_id":46447912747197,"sku":"FPML03S800W015","price":21.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_0c85f891-2949-4a36-8bdf-63f2d5238d32.jpg?v=1772513031"},{"product_id":"14-4v-bl1430-18v-bl1830-makita-drill-li-ion-battery-management-system-pcm-bms","title":"FMA 4S\/5S BMS for Makita 14.4V 18V Li-ion Battery BL1430 BL1830 PCM","description":"\u003ch2\u003e\u003cstrong\u003eFMA BMS Protection Board for Makita Power Tool Batteries\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eProfessional-grade Battery Management System (BMS) protection circuit board specifically designed for Makita power tool battery packs. Supports both 4S (14.4V) and 5S (18V) configurations, making it ideal for rebuilding or replacing Makita BL1430, BL1830, BL1860 battery packs and compatible models.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eDual Configuration Support:\u003c\/strong\u003e Compatible with both 4S (14.4V) and 5S (18V) Makita battery packs\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMakita Compatible:\u003c\/strong\u003e Designed specifically for Makita power tool battery systems\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMulti-Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, and short circuit protection\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Works with BL1430, BL1830, BL1860, and compatible Makita battery models\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eHigh Reliability:\u003c\/strong\u003e Quality components ensure long-term stable operation\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eProfessional Grade:\u003c\/strong\u003e Suitable for battery rebuilds and replacements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e1× FMA BMS Protection Circuit Board (Makita Compatible)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e4S or 5S (4-5 cells in series)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e4S Nominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e14.4V (3.6V per cell)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e5S Nominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e18V \/ 18.5V (3.6-3.7V per cell)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e4S Full Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e16.8V (4.2V per cell)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e5S Full Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e21V (4.2V per cell)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e4.25V ± 0.05V per cell\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2.5V ± 0.1V per cell\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eLi-ion\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCompatible Models (4S 14.4V)\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eBL1430, 194066-1, 194065-3, BDA340, BDF440, BFR540, BHP440, BJV140, BTP130\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCompatible Models (5S 18V)\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eBL1830, BL1860, and compatible 18V Makita batteries\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApproximately 100g\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCompatible Makita Battery Models\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003e14.4V (4S) Models:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\t\u003cli\u003eBL1430 (3.0Ah)\u003c\/li\u003e\n\t\u003cli\u003e194066-1\u003c\/li\u003e\n\t\u003cli\u003e194065-3\u003c\/li\u003e\n\t\u003cli\u003eCompatible with: BDA340, BDF440, BFR540, BHP440, BJV140, BTP130 power tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e18V (5S) Models:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\t\u003cli\u003eBL1830 (3.0Ah)\u003c\/li\u003e\n\t\u003cli\u003eBL1860 (6.0Ah)\u003c\/li\u003e\n\t\u003cli\u003eOther compatible 18V Makita lithium-ion batteries\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eMakita 14.4V power tool battery pack rebuilds\u003c\/li\u003e\n\t\u003cli\u003eMakita 18V power tool battery pack rebuilds\u003c\/li\u003e\n\t\u003cli\u003eBL1430 battery replacement and repair\u003c\/li\u003e\n\t\u003cli\u003eBL1830\/BL1860 battery replacement and repair\u003c\/li\u003e\n\t\u003cli\u003eCordless drill battery assemblies\u003c\/li\u003e\n\t\u003cli\u003eImpact driver battery packs\u003c\/li\u003e\n\t\u003cli\u003eCircular saw battery systems\u003c\/li\u003e\n\t\u003cli\u003eCustom Makita-compatible battery projects\u003c\/li\u003e\n\t\u003cli\u003eDIY battery rebuilds and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects charging when any cell reaches the overcharge protection voltage (4.25V ± 0.05V), preventing battery damage from excessive voltage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Cuts off discharge when any cell voltage drops to the protection threshold (2.5V ± 0.1V), preventing deep discharge that can permanently damage lithium cells.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Monitors discharge current and disconnects the load if current exceeds safe limits, protecting both the battery and connected power tools.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly disconnects the battery in the event of a short circuit, preventing fire hazards and equipment damage.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eDetermine whether you are rebuilding a 4S (14.4V) or 5S (18V) battery pack\u003c\/li\u003e\n\t\u003cli\u003eEnsure all battery cells are balanced and at similar voltage levels (within 0.1V)\u003c\/li\u003e\n\t\u003cli\u003eVerify that the battery pack voltage matches your chosen configuration\u003c\/li\u003e\n\t\u003cli\u003eHave the original Makita battery case ready for reassembly\u003c\/li\u003e\n\t\u003cli\u003ePrepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing\u003c\/li\u003e\n\t\u003cli\u003eWork in a clean, well-ventilated area with proper ESD protection\u003c\/li\u003e\n\t\u003cli\u003eWear safety glasses and insulated gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWiring Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eFor 4S configuration: Connect balance wires to B0 through B4 (4 cells)\u003c\/li\u003e\n\t\u003cli\u003eFor 5S configuration: Connect balance wires to B0 through B5 (5 cells)\u003c\/li\u003e\n\t\u003cli\u003eUse appropriate wire gauge for main power connections\u003c\/li\u003e\n\t\u003cli\u003eDouble-check polarity before making final connections\u003c\/li\u003e\n\t\u003cli\u003eEnsure all solder joints are clean and secure with good electrical contact\u003c\/li\u003e\n\t\u003cli\u003eInsulate all connections with heat-shrink tubing to prevent shorts\u003c\/li\u003e\n\t\u003cli\u003eTest voltage at each balance point with a multimeter before powering on\u003c\/li\u003e\n\t\u003cli\u003eVerify total pack voltage is within expected range (14.4V-16.8V for 4S, 18V-21V for 5S)\u003c\/li\u003e\n\t\u003cli\u003eEnsure proper fit within the original Makita battery case\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eRequired Skills:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eUnderstanding of lithium battery chemistry and safety\u003c\/li\u003e\n\t\u003cli\u003eProficiency in soldering and electrical connections\u003c\/li\u003e\n\t\u003cli\u003eAbility to disassemble and reassemble Makita battery cases\u003c\/li\u003e\n\t\u003cli\u003eKnowledge of proper battery handling and safety protocols\u003c\/li\u003e\n\t\u003cli\u003eExperience with multimeter usage and voltage testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWho Should NOT Attempt Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eIndividuals without electrical or electronics experience\u003c\/li\u003e\n\t\u003cli\u003eThose unfamiliar with lithium battery safety requirements\u003c\/li\u003e\n\t\u003cli\u003eAnyone without proper tools or workspace\u003c\/li\u003e\n\t\u003cli\u003eMinors without qualified adult supervision\u003c\/li\u003e\n\t\u003cli\u003eIf unsure about any aspect of installation, consult a professional technician\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eConfiguration Selection:\u003c\/strong\u003e This BMS board supports both 4S (14.4V) and 5S (18V) configurations. Make sure to wire the correct number of cells for your specific Makita battery model. Using the wrong configuration can result in improper protection and potential safety hazards.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMakita Compatibility:\u003c\/strong\u003e This BMS is designed to work with Makita power tool battery systems. Ensure your battery case and tool are compatible before purchase.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eConnector Customization:\u003c\/strong\u003e We ship the standard configuration as shown in the main product images. If you require specific connectors or custom wire arrangements for your Makita battery rebuild, please refer to the product gallery images and contact us with your requirements before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTesting:\u003c\/strong\u003e After installation, perform thorough testing including voltage checks at all balance points, charge\/discharge cycles with a Makita charger, and protection function verification before putting the battery pack into regular use with power tools.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWhy Choose FMA BMS Products?\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003eFMA specializes in high-quality battery management solutions for power tool battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards. The dual 4S\/5S configuration support provides flexibility for various Makita battery rebuild projects.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCustom BMS Solutions\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003eNeed a different cell configuration, current rating, or custom features for your power tool battery project? We offer custom BMS design and manufacturing services. Contact us with your specifications including cell count, voltage requirements, current ratings, and any special features you need, and we'll create a tailored solution for your application.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only Makita-compatible chargers designed for your specific battery voltage (14.4V or 18V) with proper voltage and current specifications. Never exceed the maximum charging voltage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within recommended temperature range. Avoid extreme temperatures during charging and discharging.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Transportation Notice\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product is designed for use with lithium batteries and may be subject to shipping restrictions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePackaging Compliance:\u003c\/strong\u003e All shipments comply with applicable packaging requirements for electronic components.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"14.4V BL1430","offer_id":46447912779965,"sku":"FPML04S000TMAK","price":13.29,"currency_code":"USD","in_stock":true},{"title":"18V BL1830","offer_id":46447912812733,"sku":"FPML05S000TMAK","price":13.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_4119dea4-5a0f-40db-ac27-41fcc6245e4e.jpg?v=1772513034"},{"product_id":"4s-14-4v-14-8v-li-ion-li-po-battery-pcm-bms-protect-circuit-management-board","title":"FMA 4S 14.4V 14.8V Li-ion Battery Protection Board BMS PCM 4A","description":"\u003ch2\u003e\u003cstrong\u003eFMA 4S 14.4V Li-ion Battery Protection Circuit Board (BMS\/PCM)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional-grade Battery Management System (BMS) protection circuit board designed for 4S lithium-ion and lithium-polymer battery packs. Provides comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions to ensure safe and reliable battery operation for various applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4S Configuration:\u003c\/strong\u003e Designed for 4-cell series lithium battery packs (14.4V nominal, 14.8V typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, and short circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4A Continuous Current:\u003c\/strong\u003e Supports up to 4A continuous discharge current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Space-efficient PCB layout ideal for smaller battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reliability:\u003c\/strong\u003e Quality components ensure long-term stable operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e Suitable for portable devices, small power tools, and custom battery projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× FMA 4S BMS Protection Circuit Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4S (4 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e14.4V (3.6V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTypical Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e14.8V (3.7V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFull Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e16.8V (4.2V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.25V ± 0.05V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V ± 0.1V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 100g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML04S01.png?v=1772592312\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML04S02.png?v=1772592312\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML04S03.png?v=1772592312\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4S lithium-ion battery pack protection\u003c\/li\u003e\n\u003cli\u003e14.4V\/14.8V power tool battery replacements\u003c\/li\u003e\n\u003cli\u003ePortable power banks and battery packs\u003c\/li\u003e\n\u003cli\u003eSmall power tool battery assemblies\u003c\/li\u003e\n\u003cli\u003eLED lighting systems\u003c\/li\u003e\n\u003cli\u003ePortable electronic devices\u003c\/li\u003e\n\u003cli\u003eRC hobby applications (drones, cars, boats)\u003c\/li\u003e\n\u003cli\u003eMedical equipment battery packs\u003c\/li\u003e\n\u003cli\u003eCustom battery pack projects\u003c\/li\u003e\n\u003cli\u003eDIY battery rebuilds and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects charging when any cell reaches the overcharge protection voltage (4.25V ± 0.05V), preventing battery damage from excessive voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Cuts off discharge when any cell voltage drops to the protection threshold (2.5V ± 0.1V), preventing deep discharge that can permanently damage lithium cells.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Monitors discharge current and disconnects the load if current exceeds safe limits (4A continuous), protecting both the battery and connected devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly disconnects the battery in the event of a short circuit, preventing fire hazards and equipment damage.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure all battery cells are balanced and at similar voltage levels (within 0.1V)\u003c\/li\u003e\n\u003cli\u003eVerify that the battery pack voltage matches the BMS specification (4S configuration)\u003c\/li\u003e\n\u003cli\u003ePrepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing\u003c\/li\u003e\n\u003cli\u003eWork in a clean, well-ventilated area with proper ESD protection\u003c\/li\u003e\n\u003cli\u003eWear safety glasses and insulated gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect balance wires to each cell in the correct sequence (B0 to B4, refer to product images)\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for main power connections (minimum 18AWG for 4A)\u003c\/li\u003e\n\u003cli\u003eDouble-check polarity before making final connections (positive to P+, negative to P-)\u003c\/li\u003e\n\u003cli\u003eEnsure all solder joints are clean and secure with good electrical contact\u003c\/li\u003e\n\u003cli\u003eInsulate all connections with heat-shrink tubing to prevent shorts\u003c\/li\u003e\n\u003cli\u003eTest voltage at each balance point with a multimeter before powering on\u003c\/li\u003e\n\u003cli\u003eVerify total pack voltage is within expected range (14.4V-16.8V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Skills:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUnderstanding of lithium battery chemistry and safety\u003c\/li\u003e\n\u003cli\u003eProficiency in soldering and electrical connections\u003c\/li\u003e\n\u003cli\u003eAbility to read wiring diagrams and follow technical specifications\u003c\/li\u003e\n\u003cli\u003eKnowledge of proper battery handling and safety protocols\u003c\/li\u003e\n\u003cli\u003eExperience with multimeter usage and voltage testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should NOT Attempt Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndividuals without electrical or electronics experience\u003c\/li\u003e\n\u003cli\u003eThose unfamiliar with lithium battery safety requirements\u003c\/li\u003e\n\u003cli\u003eAnyone without proper tools or workspace\u003c\/li\u003e\n\u003cli\u003eMinors without qualified adult supervision\u003c\/li\u003e\n\u003cli\u003eIf unsure about any aspect of installation, consult a professional technician\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e This BMS is rated for 4A continuous discharge current. Ensure your application does not exceed this current limit. For higher current applications, consider our 5S, 7S, 10S, or 12S BMS boards with higher current ratings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e14.4V Power Tool Compatibility:\u003c\/strong\u003e This 4S BMS is ideal for 14.4V power tool battery pack replacements and rebuilds. The 14.4V nominal voltage is a common standard for cordless power tools and portable devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Customization:\u003c\/strong\u003e We ship the standard configuration as shown in the main product images. If you require specific connectors or custom wire arrangements, please refer to the product gallery images and contact us with your requirements before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This BMS is designed for 4S lithium-ion or lithium-polymer battery packs with nominal voltage of 14.4V\/14.8V. Ensure your battery configuration matches before purchase. Using this BMS with incorrect battery configurations can result in improper protection and potential safety hazards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTesting:\u003c\/strong\u003e After installation, perform thorough testing including voltage checks at all balance points, charge\/discharge cycles, and protection function verification before putting the battery pack into regular use.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose FMA BMS Products?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFMA specializes in high-quality battery management solutions for lithium-ion and lithium-polymer battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCustom BMS Solutions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNeed a different cell configuration, current rating, or custom features? We offer custom BMS design and manufacturing services. Contact us with your specifications including cell count, voltage requirements, current ratings, and any special features you need, and we'll create a tailored solution for your application.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only chargers designed for 4S lithium battery packs with proper voltage (16.8V) and current specifications. Never exceed the maximum charging voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within recommended temperature range. Avoid extreme temperatures during charging and discharging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Transportation Notice\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product is designed for use with lithium batteries and may be subject to shipping restrictions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging Compliance:\u003c\/strong\u003e All shipments comply with applicable packaging requirements for electronic components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"14.8V 4A 34x34mm","offer_id":46447912845501,"sku":"FPML04S040F389","price":9.27,"currency_code":"USD","in_stock":true},{"title":"14.8V 7A 16x50mm","offer_id":46447912878269,"sku":"FPML04S070F016","price":8.66,"currency_code":"USD","in_stock":true},{"title":"14.8V 8A 30x70mm","offer_id":46447912911037,"sku":"FPML04S080W001","price":11.74,"currency_code":"USD","in_stock":true},{"title":"14.8V 10A 16x41mm","offer_id":46447912943805,"sku":"FPML04S100W007","price":10.95,"currency_code":"USD","in_stock":true},{"title":"14.8V 16A 62x31mm","offer_id":46447912976573,"sku":"FPML04S160W008","price":12.99,"currency_code":"USD","in_stock":true},{"title":"14.8V 20A 105x30mm","offer_id":46447913009341,"sku":"FPML04S200F690","price":17.23,"currency_code":"USD","in_stock":true},{"title":"14.8V 21A 97x58mm","offer_id":46447913042109,"sku":"FPML04S210W010","price":18.54,"currency_code":"USD","in_stock":true},{"title":"14.8V 30A 60x60mm","offer_id":46447913074877,"sku":"FPML04S300F566","price":19.95,"currency_code":"USD","in_stock":true},{"title":"14.8V 80A 123x54mm","offer_id":46447913107645,"sku":"FPML04S800W011","price":21.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_aa816120-49fc-4da3-b51e-79b086dbb3ae.jpg?v=1772513038"},{"product_id":"pcm-bms-protect-circuit-management-board-for-5s-18v-18-5v-li-ion-li-po-battery","title":"FMA 5S 18V 18.5V 5A Li-ion Li-Po Battery Management System Protection Board BMS PCM","description":"\u003ch2\u003e\u003cstrong\u003eFMA 5S 18V Li-ion Battery Protection Circuit Board (BMS\/PCM)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional-grade Battery Management System (BMS) protection circuit board designed for 5S lithium-ion and lithium-polymer battery packs. Provides comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions to ensure safe and reliable battery operation for various applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5S Configuration:\u003c\/strong\u003e Designed for 5-cell series lithium battery packs (18V nominal, 18.5V typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, and short circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5A Continuous Current:\u003c\/strong\u003e Supports up to 5A continuous discharge current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Space-efficient PCB layout ideal for smaller battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reliability:\u003c\/strong\u003e Quality components ensure long-term stable operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e Suitable for portable devices, small power tools, and custom battery projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× FMA 5S BMS Protection Circuit Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5S (5 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e18V (3.6V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTypical Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e18.5V (3.7V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFull Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e21V (4.2V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.25V ± 0.05V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V ± 0.1V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 100g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML05S.png?v=1772591858\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e5S lithium-ion battery pack protection\u003c\/li\u003e\n\u003cli\u003e18V power tool battery replacements\u003c\/li\u003e\n\u003cli\u003ePortable power banks and battery packs\u003c\/li\u003e\n\u003cli\u003eSmall power tool battery assemblies\u003c\/li\u003e\n\u003cli\u003eLED lighting systems\u003c\/li\u003e\n\u003cli\u003ePortable electronic devices\u003c\/li\u003e\n\u003cli\u003eRC hobby applications\u003c\/li\u003e\n\u003cli\u003eMedical equipment battery packs\u003c\/li\u003e\n\u003cli\u003eCustom battery pack projects\u003c\/li\u003e\n\u003cli\u003eDIY battery rebuilds and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects charging when any cell reaches the overcharge protection voltage (4.25V ± 0.05V), preventing battery damage from excessive voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Cuts off discharge when any cell voltage drops to the protection threshold (2.5V ± 0.1V), preventing deep discharge that can permanently damage lithium cells.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Monitors discharge current and disconnects the load if current exceeds safe limits (5A continuous), protecting both the battery and connected devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly disconnects the battery in the event of a short circuit, preventing fire hazards and equipment damage.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure all battery cells are balanced and at similar voltage levels (within 0.1V)\u003c\/li\u003e\n\u003cli\u003eVerify that the battery pack voltage matches the BMS specification (5S configuration)\u003c\/li\u003e\n\u003cli\u003ePrepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing\u003c\/li\u003e\n\u003cli\u003eWork in a clean, well-ventilated area with proper ESD protection\u003c\/li\u003e\n\u003cli\u003eWear safety glasses and insulated gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect balance wires to each cell in the correct sequence (B0 to B5, refer to product images)\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for main power connections (minimum 18AWG for 5A)\u003c\/li\u003e\n\u003cli\u003eDouble-check polarity before making final connections (positive to P+, negative to P-)\u003c\/li\u003e\n\u003cli\u003eEnsure all solder joints are clean and secure with good electrical contact\u003c\/li\u003e\n\u003cli\u003eInsulate all connections with heat-shrink tubing to prevent shorts\u003c\/li\u003e\n\u003cli\u003eTest voltage at each balance point with a multimeter before powering on\u003c\/li\u003e\n\u003cli\u003eVerify total pack voltage is within expected range (18V-21V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Skills:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUnderstanding of lithium battery chemistry and safety\u003c\/li\u003e\n\u003cli\u003eProficiency in soldering and electrical connections\u003c\/li\u003e\n\u003cli\u003eAbility to read wiring diagrams and follow technical specifications\u003c\/li\u003e\n\u003cli\u003eKnowledge of proper battery handling and safety protocols\u003c\/li\u003e\n\u003cli\u003eExperience with multimeter usage and voltage testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should NOT Attempt Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndividuals without electrical or electronics experience\u003c\/li\u003e\n\u003cli\u003eThose unfamiliar with lithium battery safety requirements\u003c\/li\u003e\n\u003cli\u003eAnyone without proper tools or workspace\u003c\/li\u003e\n\u003cli\u003eMinors without qualified adult supervision\u003c\/li\u003e\n\u003cli\u003eIf unsure about any aspect of installation, consult a professional technician\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e This BMS is rated for 5A continuous discharge current. Ensure your application does not exceed this current limit. For higher current applications, consider our 7S, 10S, or 12S BMS boards with higher current ratings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e18V Power Tool Compatibility:\u003c\/strong\u003e This 5S BMS is ideal for 18V power tool battery pack replacements and rebuilds. The 18V nominal voltage is a common standard for cordless power tools.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Customization:\u003c\/strong\u003e We ship the standard configuration as shown in the main product images. If you require specific connectors or custom wire arrangements, please refer to the product gallery images and contact us with your requirements before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This BMS is designed for 5S lithium-ion or lithium-polymer battery packs with nominal voltage of 18V\/18.5V. Ensure your battery configuration matches before purchase. Using this BMS with incorrect battery configurations can result in improper protection and potential safety hazards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTesting:\u003c\/strong\u003e After installation, perform thorough testing including voltage checks at all balance points, charge\/discharge cycles, and protection function verification before putting the battery pack into regular use.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose FMA BMS Products?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFMA specializes in high-quality battery management solutions for lithium-ion and lithium-polymer battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCustom BMS Solutions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNeed a different cell configuration, current rating, or custom features? We offer custom BMS design and manufacturing services. Contact us with your specifications including cell count, voltage requirements, current ratings, and any special features you need, and we'll create a tailored solution for your application.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only chargers designed for 5S lithium battery packs with proper voltage (21V) and current specifications. Never exceed the maximum charging voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within recommended temperature range. Avoid extreme temperatures during charging and discharging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Transportation Notice\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product is designed for use with lithium batteries and may be subject to shipping restrictions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging Compliance:\u003c\/strong\u003e All shipments comply with applicable packaging requirements for electronic components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"18V 5A 85x50mm","offer_id":46447913140413,"sku":"FPML05S050W002","price":15.71,"currency_code":"USD","in_stock":true},{"title":"18V 12A 50x85mm","offer_id":46447913173181,"sku":"FPML05S120W004","price":16.95,"currency_code":"USD","in_stock":true},{"title":"18V 21A 60x97mm","offer_id":46447913205949,"sku":"FPML05S210W005","price":19.56,"currency_code":"USD","in_stock":true},{"title":"18V 15A 17.5x90mm","offer_id":46447913238717,"sku":"FPML05S150TB01","price":8.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_dc86b0f4-8264-4831-97a0-eb02bc79ec65.jpg?v=1772513042"},{"product_id":"fma-6s-21-6v-22-2v-pcm-bms-li-ion-li-po-battery-management-system-protect-pcba","title":"FMA 6S 21.6V 22.2V Li-ion Battery Protection Board BMS PCM 5A","description":"\u003ch2\u003e\u003cstrong\u003eFMA 6S 21.6V Li-ion Battery Protection Circuit Board (BMS\/PCM)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional-grade Battery Management System (BMS) protection circuit board designed for 6S lithium-ion and lithium-polymer battery packs. Provides comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions to ensure safe and reliable battery operation for various applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6S Configuration:\u003c\/strong\u003e Designed for 6-cell series lithium battery packs (21.6V nominal, 22.2V typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, and short circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5A Continuous Current:\u003c\/strong\u003e Supports up to 5A continuous discharge current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Space-efficient PCB layout ideal for smaller battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reliability:\u003c\/strong\u003e Quality components ensure long-term stable operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e Suitable for portable devices, small power tools, and custom battery projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× FMA 6S BMS Protection Circuit Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e6S (6 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e21.6V (3.6V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTypical Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e22.2V (3.7V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFull Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e25.2V (4.2V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.25V ± 0.05V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V ± 0.1V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 100g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML06S01.png?v=1772591008\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML06S02.png?v=1772591008\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6S lithium-ion battery pack protection\u003c\/li\u003e\n\u003cli\u003ePortable power banks and battery packs\u003c\/li\u003e\n\u003cli\u003eSmall power tool battery assemblies\u003c\/li\u003e\n\u003cli\u003eLED lighting systems\u003c\/li\u003e\n\u003cli\u003ePortable electronic devices\u003c\/li\u003e\n\u003cli\u003eRC hobby applications\u003c\/li\u003e\n\u003cli\u003eMedical equipment battery packs\u003c\/li\u003e\n\u003cli\u003eCustom battery pack projects\u003c\/li\u003e\n\u003cli\u003eDIY battery rebuilds and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects charging when any cell reaches the overcharge protection voltage (4.25V ± 0.05V), preventing battery damage from excessive voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Cuts off discharge when any cell voltage drops to the protection threshold (2.5V ± 0.1V), preventing deep discharge that can permanently damage lithium cells.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Monitors discharge current and disconnects the load if current exceeds safe limits (5A continuous), protecting both the battery and connected devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly disconnects the battery in the event of a short circuit, preventing fire hazards and equipment damage.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure all battery cells are balanced and at similar voltage levels (within 0.1V)\u003c\/li\u003e\n\u003cli\u003eVerify that the battery pack voltage matches the BMS specification (6S configuration)\u003c\/li\u003e\n\u003cli\u003ePrepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing\u003c\/li\u003e\n\u003cli\u003eWork in a clean, well-ventilated area with proper ESD protection\u003c\/li\u003e\n\u003cli\u003eWear safety glasses and insulated gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect balance wires to each cell in the correct sequence (B0 to B6, refer to product images)\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for main power connections (minimum 18AWG for 5A)\u003c\/li\u003e\n\u003cli\u003eDouble-check polarity before making final connections (positive to P+, negative to P-)\u003c\/li\u003e\n\u003cli\u003eEnsure all solder joints are clean and secure with good electrical contact\u003c\/li\u003e\n\u003cli\u003eInsulate all connections with heat-shrink tubing to prevent shorts\u003c\/li\u003e\n\u003cli\u003eTest voltage at each balance point with a multimeter before powering on\u003c\/li\u003e\n\u003cli\u003eVerify total pack voltage is within expected range (21.6V-25.2V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Skills:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUnderstanding of lithium battery chemistry and safety\u003c\/li\u003e\n\u003cli\u003eProficiency in soldering and electrical connections\u003c\/li\u003e\n\u003cli\u003eAbility to read wiring diagrams and follow technical specifications\u003c\/li\u003e\n\u003cli\u003eKnowledge of proper battery handling and safety protocols\u003c\/li\u003e\n\u003cli\u003eExperience with multimeter usage and voltage testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should NOT Attempt Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndividuals without electrical or electronics experience\u003c\/li\u003e\n\u003cli\u003eThose unfamiliar with lithium battery safety requirements\u003c\/li\u003e\n\u003cli\u003eAnyone without proper tools or workspace\u003c\/li\u003e\n\u003cli\u003eMinors without qualified adult supervision\u003c\/li\u003e\n\u003cli\u003eIf unsure about any aspect of installation, consult a professional technician\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e This BMS is rated for 5A continuous discharge current. Ensure your application does not exceed this current limit. For higher current applications, consider our 7S, 10S, or 12S BMS boards with higher current ratings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Customization:\u003c\/strong\u003e We ship the standard configuration as shown in the main product images. If you require specific connectors or custom wire arrangements, please refer to the product gallery images and contact us with your requirements before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This BMS is designed for 6S lithium-ion or lithium-polymer battery packs with nominal voltage of 21.6V\/22.2V. Ensure your battery configuration matches before purchase. Using this BMS with incorrect battery configurations can result in improper protection and potential safety hazards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTesting:\u003c\/strong\u003e After installation, perform thorough testing including voltage checks at all balance points, charge\/discharge cycles, and protection function verification before putting the battery pack into regular use.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose FMA BMS Products?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFMA specializes in high-quality battery management solutions for lithium-ion and lithium-polymer battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCustom BMS Solutions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNeed a different cell configuration, current rating, or custom features? We offer custom BMS design and manufacturing services. Contact us with your specifications including cell count, voltage requirements, current ratings, and any special features you need, and we'll create a tailored solution for your application.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only chargers designed for 6S lithium battery packs with proper voltage (25.2V) and current specifications. Never exceed the maximum charging voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within recommended temperature range. Avoid extreme temperatures during charging and discharging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Transportation Notice\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product is designed for use with lithium batteries and may be subject to shipping restrictions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging Compliance:\u003c\/strong\u003e All shipments comply with applicable packaging requirements for electronic components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"22.2V 5A 90x50mm","offer_id":46447913271485,"sku":"FPML06S050W001","price":16.63,"currency_code":"USD","in_stock":true},{"title":"22.2V 10A 16x100mm","offer_id":46447913304253,"sku":"FPML06S100W002","price":14.14,"currency_code":"USD","in_stock":true},{"title":"22.2V 12A 64x50mm","offer_id":46447913337021,"sku":"FPML06S120F520","price":19.15,"currency_code":"USD","in_stock":true},{"title":"22.2V 12A 85x50mm","offer_id":46447913369789,"sku":"FPML06S120W003","price":17.92,"currency_code":"USD","in_stock":true},{"title":"22.2V 21A 60x97mm","offer_id":46447913402557,"sku":"FPML06S210W005","price":20.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_bac3bea4-e2bb-49a2-9018-2aca53b79607.jpg?v=1772513045"},{"product_id":"7s-25-9v-li-ion-lipo-battery-management-system-bms-pcm-protection-circuit-module","title":"FMA 7S 25.9V 20A\/70A Li-Po Li-ion Battery Management System Protection Board BMS PCM","description":"\u003ch2\u003e\u003cstrong\u003eFMA 7S 25.9V Li-ion Battery Protection Circuit Board (BMS\/PCM)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional-grade Battery Management System (BMS) protection circuit board designed for 7S lithium-ion and lithium-polymer battery packs. Provides comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions with active cell balancing to ensure safe and reliable battery operation.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e7S Configuration:\u003c\/strong\u003e Designed for 7-cell series lithium battery packs (25.9V nominal, 29.4V fully charged)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, and short circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20A Continuous Current:\u003c\/strong\u003e Supports up to 20A continuous discharge current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15A Charging Current:\u003c\/strong\u003e Supports up to 15A continuous charging current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Cell Balancing:\u003c\/strong\u003e 100mA ± 25mA balance current per cell for optimal battery performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Consumption:\u003c\/strong\u003e ≤11μA standby current for minimal battery drain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Size:\u003c\/strong\u003e 9mm × 34mm × 59mm for easy integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Temperature Range:\u003c\/strong\u003e Operating temperature -40°C to +85°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× FMA 7S BMS Protection Circuit Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1. FPML07S200D\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e7S (7 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e25.9V (3.7V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCharging Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e29.4V DC CC\/CV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBalance Voltage (Single Cell)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.125V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBalance Current (Single Cell)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e100mA ± 25mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCurrent Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e≤11μA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Charging Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e15A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Detection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.325V ± 0.025V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Detection Delay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e1.2 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Release Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.15V ± 0.05V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Detection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.8V ± 0.05V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Detection Delay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e1 ± 0.5 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Release Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3.0V ± 0.05V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Detection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e200mV ± 15mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Detection Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e55.5A ± 4A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Detection Delay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e9ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eShort Circuit Detection Delay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e≤320μs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMOSFET Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e≤12mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e-40°C to +125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e9mm × 34mm × 59mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 100g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e2. FPML07S700F95\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e7S (7 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e25.9V (3.7V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCharging Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e29.4V DC CC\/CV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBalance Voltage (Single Cell)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBalance Current (Single Cell)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e67mA ± 10mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCurrent Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e≤250μA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Charging Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e70A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e70A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Detection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.25V ± 0.05V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Detection Delay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e0.5-2 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Release Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.1V ± 0.1V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Detection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V ± 0.1V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Detection Delay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e50-300ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Release Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.8V ± 0.1V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Detection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e200mV ± 15mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Detection Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e250A ± 30A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Detection Delay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e100-400ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eShort Circuit Detection Delay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e≤320μs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMOSFET Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e≤12mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e-40°C to +125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e21mm × 80mm × 120mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 193g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/1AE1B10D-FA22-49D2-AF1D-145481434FA3.png?v=1772598323\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e7S lithium-ion battery pack protection\u003c\/li\u003e\n\u003cli\u003eE-bike and electric scooter battery systems\u003c\/li\u003e\n\u003cli\u003ePower tool battery pack assemblies\u003c\/li\u003e\n\u003cli\u003ePortable power stations\u003c\/li\u003e\n\u003cli\u003eLED lighting systems\u003c\/li\u003e\n\u003cli\u003eMedical equipment battery packs\u003c\/li\u003e\n\u003cli\u003eCustom battery pack projects\u003c\/li\u003e\n\u003cli\u003eDIY battery rebuilds and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects charging when any cell reaches 4.325V ± 0.025V, preventing battery damage from excessive voltage. The protection releases when voltage drops to 4.15V ± 0.05V per cell.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Cuts off discharge when any cell voltage drops to 2.8V ± 0.05V, preventing deep discharge that can permanently damage lithium cells. Protection releases at 3.0V ± 0.05V per cell.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Monitors discharge current and disconnects the load if current exceeds 55.5A ± 4A for more than 9ms, protecting both the battery and connected devices. Release by cutting the load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly disconnects the battery within 320μs in the event of a short circuit, preventing fire hazards and equipment damage. Release by cutting the load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCell Balancing:\u003c\/strong\u003e Active balancing function with 100mA ± 25mA current per cell ensures all cells maintain equal voltage levels during charging, maximizing battery capacity and lifespan.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure all battery cells are balanced and at similar voltage levels (within 0.1V)\u003c\/li\u003e\n\u003cli\u003eVerify that the battery pack voltage matches the BMS specification (7S configuration)\u003c\/li\u003e\n\u003cli\u003ePrepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing\u003c\/li\u003e\n\u003cli\u003eWork in a clean, well-ventilated area with proper ESD protection\u003c\/li\u003e\n\u003cli\u003eWear safety glasses and insulated gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect balance wires to each cell in the correct sequence (B0 to B7, refer to product images)\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for main power connections (minimum 14AWG for 20A)\u003c\/li\u003e\n\u003cli\u003eDouble-check polarity before making final connections (positive to P+, negative to P-)\u003c\/li\u003e\n\u003cli\u003eEnsure all solder joints are clean and secure with good electrical contact\u003c\/li\u003e\n\u003cli\u003eInsulate all connections with heat-shrink tubing to prevent shorts\u003c\/li\u003e\n\u003cli\u003eTest voltage at each balance point with a multimeter before powering on\u003c\/li\u003e\n\u003cli\u003eVerify total pack voltage is within expected range (25.9V-29.4V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Skills:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUnderstanding of lithium battery chemistry and safety\u003c\/li\u003e\n\u003cli\u003eProficiency in soldering and electrical connections\u003c\/li\u003e\n\u003cli\u003eAbility to read wiring diagrams and follow technical specifications\u003c\/li\u003e\n\u003cli\u003eKnowledge of proper battery handling and safety protocols\u003c\/li\u003e\n\u003cli\u003eExperience with multimeter usage and voltage testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should NOT Attempt Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndividuals without electrical or electronics experience\u003c\/li\u003e\n\u003cli\u003eThose unfamiliar with lithium battery safety requirements\u003c\/li\u003e\n\u003cli\u003eAnyone without proper tools or workspace\u003c\/li\u003e\n\u003cli\u003eMinors without qualified adult supervision\u003c\/li\u003e\n\u003cli\u003eIf unsure about any aspect of installation, consult a professional technician\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Customization:\u003c\/strong\u003e We ship the standard configuration as shown in the main product images. If you require specific connectors or custom wire arrangements, please refer to the product gallery images and contact us with your requirements before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This BMS is designed for 7S lithium-ion or lithium-polymer battery packs with nominal voltage of 25.9V. Ensure your battery configuration matches before purchase. Using this BMS with incorrect battery configurations can result in improper protection and potential safety hazards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTesting:\u003c\/strong\u003e After installation, perform thorough testing including voltage checks at all balance points, charge\/discharge cycles, and protection function verification before putting the battery pack into regular use.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose FMA BMS Products?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFMA specializes in high-quality battery management solutions for lithium-ion and lithium-polymer battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards. With low MOSFET resistance (≤12mΩ), active cell balancing, and wide operating temperature range, our BMS boards deliver professional-grade performance for demanding applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCustom BMS Solutions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNeed a different cell configuration, current rating, or custom features? We offer custom BMS design and manufacturing services. Contact us with your specifications including cell count, voltage requirements, current ratings, and any special features you need, and we'll create a tailored solution for your application.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only chargers designed for 7S lithium battery packs with proper voltage (29.4V) and current specifications (maximum 15A). Never exceed the maximum charging voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within recommended temperature range (-40°C to +85°C). Avoid extreme temperatures during charging and discharging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Transportation Notice\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product is designed for use with lithium batteries and may be subject to shipping restrictions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging Compliance:\u003c\/strong\u003e All shipments comply with applicable packaging requirements for electronic components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"20A 34x59x9mm","offer_id":46461639327933,"sku":"FPML07S200D","price":14.95,"currency_code":"USD","in_stock":true},{"title":"70A 120x80x21mm","offer_id":46461639360701,"sku":"FPML07S700F95","price":46.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_8d9b2843-f903-452a-a65f-319ec1aa7378.jpg?v=1772513049"},{"product_id":"8s-28-8v-29-6v-protect-circuit-management-board-pcm-bms-for-li-ion-li-po-battery","title":"FMA 8S 28.8V 29.6V 5A Li-ion Li-Po Battery Protection Board BMS PCM Protection Circuit Management Board","description":"\u003ch2\u003e\u003cstrong\u003eFMA 8S 28.8V Li-ion Battery Protection Circuit Board (BMS\/PCM)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional-grade Battery Management System (BMS) protection circuit board designed for 8S lithium-ion and lithium-polymer battery packs. Provides comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions to ensure safe and reliable battery operation for various applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8S Configuration:\u003c\/strong\u003e Designed for 8-cell series lithium battery packs (28.8V nominal, 29.6V typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, and short circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5A Continuous Current:\u003c\/strong\u003e Supports up to 5A continuous discharge current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Space-efficient PCB layout ideal for smaller battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reliability:\u003c\/strong\u003e Quality components ensure long-term stable operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e Suitable for portable devices, small power tools, and custom battery projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× FMA 8S BMS Protection Circuit Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e8S (8 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e28.8V (3.6V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTypical Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e29.6V (3.7V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFull Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e33.6V (4.2V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.25V ± 0.05V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V ± 0.1V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 100g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML08S.png?v=1772589029\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e8S lithium-ion battery pack protection\u003c\/li\u003e\n\u003cli\u003ePortable power banks and battery packs\u003c\/li\u003e\n\u003cli\u003eSmall power tool battery assemblies\u003c\/li\u003e\n\u003cli\u003eLED lighting systems\u003c\/li\u003e\n\u003cli\u003ePortable electronic devices\u003c\/li\u003e\n\u003cli\u003eMedical equipment battery packs\u003c\/li\u003e\n\u003cli\u003eCustom battery pack projects\u003c\/li\u003e\n\u003cli\u003eDIY battery rebuilds and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects charging when any cell reaches the overcharge protection voltage (4.25V ± 0.05V), preventing battery damage from excessive voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Cuts off discharge when any cell voltage drops to the protection threshold (2.5V ± 0.1V), preventing deep discharge that can permanently damage lithium cells.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Monitors discharge current and disconnects the load if current exceeds safe limits (5A continuous), protecting both the battery and connected devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly disconnects the battery in the event of a short circuit, preventing fire hazards and equipment damage.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure all battery cells are balanced and at similar voltage levels (within 0.1V)\u003c\/li\u003e\n\u003cli\u003eVerify that the battery pack voltage matches the BMS specification (8S configuration)\u003c\/li\u003e\n\u003cli\u003ePrepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing\u003c\/li\u003e\n\u003cli\u003eWork in a clean, well-ventilated area with proper ESD protection\u003c\/li\u003e\n\u003cli\u003eWear safety glasses and insulated gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect balance wires to each cell in the correct sequence (B0 to B8, refer to product images)\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for main power connections (minimum 18AWG for 5A)\u003c\/li\u003e\n\u003cli\u003eDouble-check polarity before making final connections (positive to P+, negative to P-)\u003c\/li\u003e\n\u003cli\u003eEnsure all solder joints are clean and secure with good electrical contact\u003c\/li\u003e\n\u003cli\u003eInsulate all connections with heat-shrink tubing to prevent shorts\u003c\/li\u003e\n\u003cli\u003eTest voltage at each balance point with a multimeter before powering on\u003c\/li\u003e\n\u003cli\u003eVerify total pack voltage is within expected range (28.8V-33.6V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Skills:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUnderstanding of lithium battery chemistry and safety\u003c\/li\u003e\n\u003cli\u003eProficiency in soldering and electrical connections\u003c\/li\u003e\n\u003cli\u003eAbility to read wiring diagrams and follow technical specifications\u003c\/li\u003e\n\u003cli\u003eKnowledge of proper battery handling and safety protocols\u003c\/li\u003e\n\u003cli\u003eExperience with multimeter usage and voltage testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should NOT Attempt Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndividuals without electrical or electronics experience\u003c\/li\u003e\n\u003cli\u003eThose unfamiliar with lithium battery safety requirements\u003c\/li\u003e\n\u003cli\u003eAnyone without proper tools or workspace\u003c\/li\u003e\n\u003cli\u003eMinors without qualified adult supervision\u003c\/li\u003e\n\u003cli\u003eIf unsure about any aspect of installation, consult a professional technician\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e This BMS is rated for 5A continuous discharge current. Ensure your application does not exceed this current limit. For higher current applications, consider our 10S or 12S BMS boards with higher current ratings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Customization:\u003c\/strong\u003e We ship the standard configuration as shown in the main product images. If you require specific connectors or custom wire arrangements, please refer to the product gallery images and contact us with your requirements before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This BMS is designed for 8S lithium-ion or lithium-polymer battery packs with nominal voltage of 28.8V\/29.6V. Ensure your battery configuration matches before purchase. Using this BMS with incorrect battery configurations can result in improper protection and potential safety hazards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTesting:\u003c\/strong\u003e After installation, perform thorough testing including voltage checks at all balance points, charge\/discharge cycles, and protection function verification before putting the battery pack into regular use.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose FMA BMS Products?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFMA specializes in high-quality battery management solutions for lithium-ion and lithium-polymer battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCustom BMS Solutions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNeed a different cell configuration, current rating, or custom features? We offer custom BMS design and manufacturing services. Contact us with your specifications including cell count, voltage requirements, current ratings, and any special features you need, and we'll create a tailored solution for your application.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only chargers designed for 8S lithium battery packs with proper voltage (33.6V) and current specifications. Never exceed the maximum charging voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within recommended temperature range. Avoid extreme temperatures during charging and discharging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Transportation Notice\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product is designed for use with lithium batteries and may be subject to shipping restrictions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging Compliance:\u003c\/strong\u003e All shipments comply with applicable packaging requirements for electronic components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"28.8V 5A 119x51x6.5mm","offer_id":46447913599165,"sku":"FPML08S050F440C","price":15.72,"currency_code":"USD","in_stock":true},{"title":"28.8V 25A 119x51x6.5mm","offer_id":46447913631933,"sku":"FPML08S250FA72","price":23.95,"currency_code":"USD","in_stock":true},{"title":"28.8V 30A 120x65x9mm","offer_id":46447913664701,"sku":"FPML08S300F922","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_4f745cf9-f48b-4e4b-a56e-c4a9f10a95f5.jpg?v=1772513052"},{"product_id":"9s-33-3v-or-10s-36v-li-ion-lipo-battery-protect-circuit-management-board-pcm-bms","title":"FMA 9S 33.3V 10S 36V 21A Li-ion Li-Po BMS Battery Management System Protection Board PCM","description":"\u003ch2\u003e\u003cstrong\u003eFMA 9S\/10S Li-ion Battery Protection Circuit Board (BMS\/PCM)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eVersatile Battery Management System (BMS) protection circuit board designed for both 9S and 10S lithium-ion battery packs. Provides comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions to ensure safe and reliable battery operation for various applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Configuration Support:\u003c\/strong\u003e Compatible with both 9S (33.3V) and 10S (36V) lithium battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, and short circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e21A Continuous Current:\u003c\/strong\u003e Supports up to 21A continuous discharge current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Application:\u003c\/strong\u003e Suitable for e-bikes, power tools, solar systems, and custom battery projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Space-efficient PCB layout for easy integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reliability:\u003c\/strong\u003e Quality components ensure long-term stable operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× FMA 9S\/10S BMS Protection Circuit Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e9S or 10S (9-10 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage (9S)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e33.3V (3.7V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage (10S)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e36V (3.6V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFull Charge Voltage (9S)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e37.8V (4.2V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFull Charge Voltage (10S)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e42V (4.2V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e21A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.25V ± 0.05V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V ± 0.1V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 100g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML09S10S.png?v=1772585570\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e9S (33.3V) lithium-ion battery pack protection\u003c\/li\u003e\n\u003cli\u003e10S (36V) lithium-ion battery pack protection\u003c\/li\u003e\n\u003cli\u003eE-bike and electric scooter battery systems\u003c\/li\u003e\n\u003cli\u003ePower tool battery pack assemblies\u003c\/li\u003e\n\u003cli\u003eSolar energy storage systems\u003c\/li\u003e\n\u003cli\u003ePortable power stations\u003c\/li\u003e\n\u003cli\u003eCustom battery pack projects\u003c\/li\u003e\n\u003cli\u003eDIY battery rebuilds and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects charging when any cell reaches the overcharge protection voltage (4.25V ± 0.05V), preventing battery damage from excessive voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Cuts off discharge when any cell voltage drops to the protection threshold (2.5V ± 0.1V), preventing deep discharge that can permanently damage lithium cells.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Monitors discharge current and disconnects the load if current exceeds safe limits, protecting both the battery and connected devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly disconnects the battery in the event of a short circuit, preventing fire hazards and equipment damage.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDetermine whether you are building a 9S or 10S battery pack\u003c\/li\u003e\n\u003cli\u003eEnsure all battery cells are balanced and at similar voltage levels (within 0.1V)\u003c\/li\u003e\n\u003cli\u003eVerify that the battery pack voltage matches your chosen configuration\u003c\/li\u003e\n\u003cli\u003ePrepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing\u003c\/li\u003e\n\u003cli\u003eWork in a clean, well-ventilated area with proper ESD protection\u003c\/li\u003e\n\u003cli\u003eWear safety glasses and insulated gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor 9S configuration: Connect balance wires to B0 through B9 (9 cells)\u003c\/li\u003e\n\u003cli\u003eFor 10S configuration: Connect balance wires to B0 through B10 (10 cells)\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for main power connections (minimum 12AWG for 21A)\u003c\/li\u003e\n\u003cli\u003eDouble-check polarity before making final connections (positive to P+, negative to P-)\u003c\/li\u003e\n\u003cli\u003eEnsure all solder joints are clean and secure with good electrical contact\u003c\/li\u003e\n\u003cli\u003eInsulate all connections with heat-shrink tubing to prevent shorts\u003c\/li\u003e\n\u003cli\u003eTest voltage at each balance point with a multimeter before powering on\u003c\/li\u003e\n\u003cli\u003eVerify total pack voltage is within expected range (33.3V-37.8V for 9S, 36V-42V for 10S)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Skills:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUnderstanding of lithium battery chemistry and safety\u003c\/li\u003e\n\u003cli\u003eProficiency in soldering and electrical connections\u003c\/li\u003e\n\u003cli\u003eAbility to read wiring diagrams and follow technical specifications\u003c\/li\u003e\n\u003cli\u003eKnowledge of proper battery handling and safety protocols\u003c\/li\u003e\n\u003cli\u003eExperience with multimeter usage and voltage testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should NOT Attempt Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndividuals without electrical or electronics experience\u003c\/li\u003e\n\u003cli\u003eThose unfamiliar with lithium battery safety requirements\u003c\/li\u003e\n\u003cli\u003eAnyone without proper tools or workspace\u003c\/li\u003e\n\u003cli\u003eMinors without qualified adult supervision\u003c\/li\u003e\n\u003cli\u003eIf unsure about any aspect of installation, consult a professional technician\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eConfiguration Selection:\u003c\/strong\u003e This BMS board supports both 9S and 10S configurations. Make sure to wire the correct number of cells for your application. Using the wrong configuration can result in improper protection and potential safety hazards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Customization:\u003c\/strong\u003e We ship the standard configuration as shown in the main product images. If you require specific connectors or custom wire arrangements, please refer to the product gallery images and contact us with your requirements before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This BMS is designed for lithium-ion or lithium-polymer battery packs. Ensure your battery chemistry and configuration match before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTesting:\u003c\/strong\u003e After installation, perform thorough testing including voltage checks at all balance points, charge\/discharge cycles, and protection function verification before putting the battery pack into regular use.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose FMA BMS Products?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFMA specializes in high-quality battery management solutions for lithium-ion and lithium-polymer battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards. The dual 9S\/10S configuration support provides flexibility for various battery pack designs.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCustom BMS Solutions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNeed a different cell configuration, current rating, or custom features? We offer custom BMS design and manufacturing services. Contact us with your specifications including cell count, voltage requirements, current ratings, and any special features you need, and we'll create a tailored solution for your application.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only chargers designed for your specific battery configuration (37.8V for 9S or 42V for 10S) with proper voltage and current specifications. Never exceed the maximum charging voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within recommended temperature range. Avoid extreme temperatures during charging and discharging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Transportation Notice\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product is designed for use with lithium batteries and may be subject to shipping restrictions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging Compliance:\u003c\/strong\u003e All shipments comply with applicable packaging requirements for electronic components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"33.3V 21A 115x60mm","offer_id":46447913730237,"sku":"FPML09S210W001","price":26.98,"currency_code":"USD","in_stock":true},{"title":"36V 10A 65x35x9mm","offer_id":46447913763005,"sku":"FPML10S200FB72","price":16.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_7602da51-40b4-4c89-860b-6d356ca16ce1.jpg?v=1772513055"},{"product_id":"ev-solar-systems-10s-36v-37v-li-ion-li-po-battery-balance-bms-protect-board-pcm","title":"FMA 10S 36V 37V Li-ion Li-Po Rechargeable Battery Protection Board BMS PCM","description":"\u003ch2\u003e\u003cstrong\u003eFMA 10S 36V Li-ion Battery Protection Circuit Board (BMS\/PCM)\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eProfessional-grade Battery Management System (BMS) protection circuit board designed for 10S lithium-ion and lithium-polymer battery packs. Provides comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions to ensure safe and reliable battery operation for EV, solar systems, and power applications.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e10S Configuration:\u003c\/strong\u003e Designed for 10-cell series lithium battery packs (36V nominal, 37V typical, 42V fully charged)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMulti-Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, and short circuit protection\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e21A Continuous Current:\u003c\/strong\u003e Supports up to 21A continuous discharge current\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eActive Cell Balancing:\u003c\/strong\u003e 45mA balance current per cell for optimal battery performance\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eLow Power Consumption:\u003c\/strong\u003e ≤11μA standby current for minimal battery drain\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eHigh Reliability:\u003c\/strong\u003e Quality components ensure long-term stable operation\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eWide Temperature Range:\u003c\/strong\u003e Operating temperature -40°C to +85°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e1× FMA 10S BMS Protection Circuit Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e10S (10 cells in series)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e36V \/ 37V\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCharging Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e42V DC CC\/CV\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eBalance Voltage (Single Cell)\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e4.2V\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eBalance Current (Single Cell)\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e45mA\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCurrent Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e≤11μA\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e21A\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Detection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e4.325V ± 0.025V per cell\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Detection Delay\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1.2 seconds\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Release Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e4.075V ± 0.025V per cell\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Detection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2.5V ± 0.05V per cell\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Detection Delay\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e144ms\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Release Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2.9V ± 0.05V per cell\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Detection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e200mV ± 15mV\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Detection Current\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e47.6A ± 3.6A\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Detection Delay\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e9ms\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eShort Circuit Detection Delay\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e≤320μs\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eMOSFET Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e≤5.2mΩ\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e-40°C to +85°C\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e-40°C to +125°C\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApproximately 100g\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\t\t\t\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eElectric vehicle (EV) battery systems\u003c\/li\u003e\n\t\u003cli\u003eSolar energy storage systems\u003c\/li\u003e\n\t\u003cli\u003eE-bike and electric scooter battery packs\u003c\/li\u003e\n\t\u003cli\u003ePower tool battery assemblies\u003c\/li\u003e\n\t\u003cli\u003ePortable power stations\u003c\/li\u003e\n\t\u003cli\u003eEnergy storage and backup power systems\u003c\/li\u003e\n\t\u003cli\u003eCustom 10S lithium battery pack projects\u003c\/li\u003e\n\t\u003cli\u003eDIY battery rebuilds and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects charging when any cell reaches 4.325V ± 0.025V, preventing battery damage from excessive voltage. The protection releases when voltage drops to 4.075V ± 0.025V per cell.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Cuts off discharge when any cell voltage drops to 2.5V ± 0.05V, preventing deep discharge that can permanently damage lithium cells. Protection releases at 2.9V ± 0.05V per cell.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Monitors discharge current and disconnects the load if current exceeds 47.6A ± 3.6A for more than 9ms, protecting both the battery and connected devices. Release by cutting the load.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly disconnects the battery within 320μs in the event of a short circuit, preventing fire hazards and equipment damage. Release by cutting the load.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCell Balancing:\u003c\/strong\u003e Active balancing function with 45mA current per cell ensures all cells maintain equal voltage levels during charging, maximizing battery capacity and lifespan.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eEnsure all battery cells are balanced and at similar voltage levels (within 0.1V)\u003c\/li\u003e\n\t\u003cli\u003eVerify that the battery pack voltage matches the BMS specification (10S configuration)\u003c\/li\u003e\n\t\u003cli\u003ePrepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing\u003c\/li\u003e\n\t\u003cli\u003eWork in a clean, well-ventilated area with proper ESD protection\u003c\/li\u003e\n\t\u003cli\u003eWear safety glasses and insulated gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWiring Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eConnect balance wires to each cell in the correct sequence (B0 to B10, refer to product images)\u003c\/li\u003e\n\t\u003cli\u003eUse appropriate wire gauge for main power connections (minimum 12AWG for 21A)\u003c\/li\u003e\n\t\u003cli\u003eDouble-check polarity before making final connections (positive to P+, negative to P-)\u003c\/li\u003e\n\t\u003cli\u003eEnsure all solder joints are clean and secure with good electrical contact\u003c\/li\u003e\n\t\u003cli\u003eInsulate all connections with heat-shrink tubing to prevent shorts\u003c\/li\u003e\n\t\u003cli\u003eTest voltage at each balance point with a multimeter before powering on\u003c\/li\u003e\n\t\u003cli\u003eVerify total pack voltage is within expected range (36V-42V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eRequired Skills:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eUnderstanding of lithium battery chemistry and safety\u003c\/li\u003e\n\t\u003cli\u003eProficiency in soldering and electrical connections\u003c\/li\u003e\n\t\u003cli\u003eAbility to read wiring diagrams and follow technical specifications\u003c\/li\u003e\n\t\u003cli\u003eKnowledge of proper battery handling and safety protocols\u003c\/li\u003e\n\t\u003cli\u003eExperience with multimeter usage and voltage testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWho Should NOT Attempt Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eIndividuals without electrical or electronics experience\u003c\/li\u003e\n\t\u003cli\u003eThose unfamiliar with lithium battery safety requirements\u003c\/li\u003e\n\t\u003cli\u003eAnyone without proper tools or workspace\u003c\/li\u003e\n\t\u003cli\u003eMinors without qualified adult supervision\u003c\/li\u003e\n\t\u003cli\u003eIf unsure about any aspect of installation, consult a professional technician\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eConnector Customization:\u003c\/strong\u003e We ship the standard configuration as shown in the main product images. If you require specific connectors or custom wire arrangements, please refer to the product gallery images and contact us with your requirements before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This BMS is designed for 10S lithium-ion or lithium-polymer battery packs with nominal voltage of 36V\/37V. Ensure your battery configuration matches before purchase. Using this BMS with incorrect battery configurations can result in improper protection and potential safety hazards.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTesting:\u003c\/strong\u003e After installation, perform thorough testing including voltage checks at all balance points, charge\/discharge cycles, and protection function verification before putting the battery pack into regular use.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWhy Choose FMA BMS Products?\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003eFMA specializes in high-quality battery management solutions for lithium-ion and lithium-polymer battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards. With low MOSFET resistance (≤5.2mΩ) and wide operating temperature range, our BMS boards deliver professional-grade performance for demanding applications.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCustom BMS Solutions\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003eNeed a different cell configuration, current rating, or custom features? We offer custom BMS design and manufacturing services. Contact us with your specifications including cell count, voltage requirements, current ratings, and any special features you need, and we'll create a tailored solution for your application.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only chargers designed for 10S lithium battery packs with proper voltage (42V) and current specifications. Never exceed the maximum charging voltage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within recommended temperature range (-40°C to +85°C). Avoid extreme temperatures during charging and discharging.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Transportation Notice\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product is designed for use with lithium batteries and may be subject to shipping restrictions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePackaging Compliance:\u003c\/strong\u003e All shipments comply with applicable packaging requirements for electronic components.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"Default Title","offer_id":46447913861309,"sku":"FPML10S210W001","price":28.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_b72898fa-4776-406b-b740-c01bb92f87a1.jpg?v=1772513059"},{"product_id":"fma-12s-43-2v-44-4v-li-ion-lipo-battery-protect-circuit-management-board-pcm-bms","title":"FMA 12S 43.2V 44.4V Li-ion Battery Protection Board BMS PCM 15A","description":"\u003ch2\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML12S.png?v=1772583586\" alt=\"\"\u003eFMA 12S 43.2V Li-ion Battery Protection Circuit Board (BMS\/PCM)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional-grade Battery Management System (BMS) protection circuit board designed for 12S lithium-ion battery packs. Provides comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions to ensure safe and reliable battery operation.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12S Configuration:\u003c\/strong\u003e Designed for 12-cell series lithium-ion battery packs (43.2V nominal, 44.4V fully charged)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, and short circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15A Continuous Current:\u003c\/strong\u003e Supports up to 15A continuous discharge current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Voltage Monitoring:\u003c\/strong\u003e Individual cell voltage monitoring for balanced protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Space-efficient PCB layout for easy integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Reliability:\u003c\/strong\u003e Quality components ensure long-term stable operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× FMA 12S BMS Protection Circuit Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e12S (12 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e43.2V (3.6V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFull Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e44.4V (3.7V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaximum Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e50.4V (4.2V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eContinuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e15A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.25V ± 0.05V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V ± 0.1V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eRefer to product images\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eApproximately 100g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e12S lithium-ion battery pack protection\u003c\/li\u003e\n\u003cli\u003eE-bike and electric scooter battery systems\u003c\/li\u003e\n\u003cli\u003ePower tool battery pack assemblies\u003c\/li\u003e\n\u003cli\u003eEnergy storage systems\u003c\/li\u003e\n\u003cli\u003eCustom battery pack projects\u003c\/li\u003e\n\u003cli\u003eDIY battery rebuilds and upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e Automatically disconnects charging when any cell reaches the overcharge protection voltage (4.25V), preventing battery damage from excessive voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e Cuts off discharge when any cell voltage drops to the protection threshold (2.5V), preventing deep discharge that can permanently damage lithium cells.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e Monitors discharge current and disconnects the load if current exceeds safe limits, protecting both the battery and connected devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Instantly disconnects the battery in the event of a short circuit, preventing fire hazards and equipment damage.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Wiring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure all battery cells are balanced and at similar voltage levels\u003c\/li\u003e\n\u003cli\u003eVerify that the battery pack voltage matches the BMS specification (12S configuration)\u003c\/li\u003e\n\u003cli\u003ePrepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing\u003c\/li\u003e\n\u003cli\u003eWork in a clean, well-ventilated area with proper ESD protection\u003c\/li\u003e\n\u003cli\u003eWear safety glasses and insulated gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Guidelines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect balance wires to each cell in the correct sequence (refer to product images)\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for main power connections (minimum 14AWG for 15A)\u003c\/li\u003e\n\u003cli\u003eDouble-check polarity before making final connections\u003c\/li\u003e\n\u003cli\u003eEnsure all solder joints are clean and secure\u003c\/li\u003e\n\u003cli\u003eInsulate all connections with heat-shrink tubing to prevent shorts\u003c\/li\u003e\n\u003cli\u003eTest voltage at each balance point with a multimeter before powering on\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Skills:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUnderstanding of lithium battery chemistry and safety\u003c\/li\u003e\n\u003cli\u003eProficiency in soldering and electrical connections\u003c\/li\u003e\n\u003cli\u003eAbility to read wiring diagrams and follow technical specifications\u003c\/li\u003e\n\u003cli\u003eKnowledge of proper battery handling and safety protocols\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWho Should NOT Attempt Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndividuals without electrical or electronics experience\u003c\/li\u003e\n\u003cli\u003eThose unfamiliar with lithium battery safety requirements\u003c\/li\u003e\n\u003cli\u003eAnyone without proper tools or workspace\u003c\/li\u003e\n\u003cli\u003eMinors without qualified adult supervision\u003c\/li\u003e\n\u003cli\u003eIf unsure about any aspect of installation, consult a professional technician\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Customization:\u003c\/strong\u003e We ship the standard configuration as shown in the main product images. If you require specific connectors or custom wire arrangements, please refer to the product gallery images and contact us with your requirements before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This BMS is designed for 12S lithium-ion battery packs. Ensure your battery configuration matches before purchase. Using this BMS with incorrect battery configurations can result in improper protection and potential safety hazards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTesting:\u003c\/strong\u003e After installation, perform thorough testing including voltage checks, charge\/discharge cycles, and protection function verification before putting the battery pack into regular use.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose FMA BMS Products?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFMA specializes in high-quality battery management solutions for lithium-ion and lithium-polymer battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCustom BMS Solutions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNeed a different cell configuration, current rating, or custom features? We offer custom BMS design and manufacturing services. Contact us with your specifications including cell count, voltage requirements, current ratings, and any special features you need, and we'll create a tailored solution for your application.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only chargers designed for 12S lithium-ion battery packs with proper voltage and current specifications. Never exceed 50.4V charging voltage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Operate within recommended temperature range. Avoid extreme temperatures during charging and discharging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInspection:\u003c\/strong\u003e Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping \u0026amp; Transportation Notice\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHazardous Material:\u003c\/strong\u003e This product is designed for use with lithium batteries and may be subject to shipping restrictions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging Compliance:\u003c\/strong\u003e All shipments comply with applicable packaging requirements for electronic components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"44.4V 15A 68x64x15mm","offer_id":46447913894077,"sku":"FPML12S150F873","price":19.53,"currency_code":"USD","in_stock":true},{"title":"44.4V 30A 120x65x9mm","offer_id":46447913926845,"sku":"FPML12S300F922","price":30.95,"currency_code":"USD","in_stock":true},{"title":"44.4V 50A 120x80x30mm","offer_id":46447913959613,"sku":"FPML12S500F562","price":44.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_7be933a8-b5d8-451c-9cc7-c6bf3f914cf8.jpg?v=1772513061"},{"product_id":"fma-13s-46-8v-48v-li-ion-li-po-battery-protect-circuit-management-board-pcm-bms","title":"FMA 13S 46.8V 48V Li-ion Li-Po Battery Protect Circuit Management Board PCM BMS","description":"\u003ch2\u003e\u003cstrong\u003e13S 48V Li-ion\/LiPo Battery Protection Board (BMS\/PCM) - 8 Models Available\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional Battery Management System (BMS) \/ Protection Circuit Module (PCM) specifically designed for 13S (46.8V\/48V) lithium-ion and lithium-polymer battery packs. Available in 8 different models with current ratings from 10A to 40A and various sizes. Features comprehensive protection including overcharge, over-discharge, overcurrent, short circuit, and temperature protection, plus built-in 13-cell balancing function. Perfect for 48V e-bikes, electric scooters, solar energy storage systems, and high-power applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e48V System Compatible:\u003c\/strong\u003e 13S configuration (46.8V nominal, 54.6V max)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 Models Available:\u003c\/strong\u003e Choose from 10A to 40A current ratings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLi-ion\/LiPo Compatible:\u003c\/strong\u003e Works with both battery chemistries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, short circuit, temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13-Cell Balancing:\u003c\/strong\u003e Built-in balancing for all 13 cells\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Sizes:\u003c\/strong\u003e Various form factors from 55×40mm to 125×55mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Components:\u003c\/strong\u003e Reliable MOSFETs and protection ICs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Self-Consumption:\u003c\/strong\u003e Minimal power drain on battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× 13S 48V Li-ion\/LiPo Protection Board (BMS\/PCM) - model as selected\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAvailable Models - Choose Based on Your Current Needs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCurrent\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSize (mm)\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e10A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e88 × 45\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLow power e-bikes, light applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e15A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e15A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e55 × 40 × 17\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eStandard e-bikes, compact design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e20A Model 1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e65 × 35 × 11\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eE-bikes, electric scooters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e20A Model 2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e65 × 35 × 9\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eUltra-slim, space-constrained\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e25A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e25A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e125 × 55 × 11\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eHigh power e-bikes, solar systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e30A Model 1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e30A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e120 × 50 × 9\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eElectric scooters, high power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e30A Model 2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e30A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e80 × 60 × 11\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCompact high power applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e40A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e40A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e22 × 60 × 100\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMaximum power, electric motorcycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e13S (13 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e46.8V (Li-ion) \/ 48.1V (LiPo)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaximum Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e54.6V (13 × 4.2V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.2V per cell (54.6V total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V-3.0V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBalance Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eYes - all 13 cells\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e~100g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFMA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML13S1.png?v=1772524356\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML13S2.png?v=1772524356\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eProtection Type\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when any cell exceeds 4.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when any cell drops below safe voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when current exceeds rated limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eShort Circuit Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eInstantly disconnects on short circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e13-Cell Balancing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBalances all 13 cells during charging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTemperature Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eProtects against overheating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eStep-by-Step Installation Instructions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e✅ Follow These Steps Carefully for Safe Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStep 1: Preparation \u0026amp; Safety\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCRITICAL:\u003c\/strong\u003e Disconnect all power sources before starting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHIGH VOLTAGE:\u003c\/strong\u003e 13S battery can reach 54.6V - take precautions\u003c\/li\u003e\n\u003cli\u003eVerify you have exactly 13 Li-ion or LiPo cells in series\u003c\/li\u003e\n\u003cli\u003eSelect correct BMS model based on maximum current draw\u003c\/li\u003e\n\u003cli\u003ePrepare tools: soldering iron, solder, wire cutters, multimeter, heat shrink tubing\u003c\/li\u003e\n\u003cli\u003eWire gauge recommendations:\u003c\/li\u003e\n\u003cli\u003e10-15A: 14-16 AWG\u003c\/li\u003e\n\u003cli\u003e20-25A: 12-14 AWG\u003c\/li\u003e\n\u003cli\u003e30-40A: 10-12 AWG\u003c\/li\u003e\n\u003cli\u003eWork in well-ventilated area\u003c\/li\u003e\n\u003cli\u003eWear safety glasses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 2: Identify Connection Points\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLocate connection points on BMS:\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB-\u003c\/strong\u003e (Battery Negative): Connect to negative terminal of battery pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB+\u003c\/strong\u003e (Battery Positive): Connect to positive terminal of battery pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP-\u003c\/strong\u003e (Load\/Charger Negative): Output negative terminal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP+\u003c\/strong\u003e (Load\/Charger Positive): Output positive terminal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalance Wires (13S):\u003c\/strong\u003e B-, B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12, B+\u003c\/li\u003e\n\u003cli\u003eStudy wiring diagram carefully\u003c\/li\u003e\n\u003cli\u003eTake photos for reference\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 3: Connect Balance Wires (Critical Step)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eFor 13S Configuration - 14 balance wire connections:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB-\u003c\/strong\u003e → Negative terminal of Cell 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB1\u003c\/strong\u003e → Connection between Cell 1 and Cell 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB2\u003c\/strong\u003e → Connection between Cell 2 and Cell 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB3\u003c\/strong\u003e → Connection between Cell 3 and Cell 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB4\u003c\/strong\u003e → Connection between Cell 4 and Cell 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB5\u003c\/strong\u003e → Connection between Cell 5 and Cell 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB6\u003c\/strong\u003e → Connection between Cell 6 and Cell 7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB7\u003c\/strong\u003e → Connection between Cell 7 and Cell 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB8\u003c\/strong\u003e → Connection between Cell 8 and Cell 9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB9\u003c\/strong\u003e → Connection between Cell 9 and Cell 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB10\u003c\/strong\u003e → Connection between Cell 10 and Cell 11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB11\u003c\/strong\u003e → Connection between Cell 11 and Cell 12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB12\u003c\/strong\u003e → Connection between Cell 12 and Cell 13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB+\u003c\/strong\u003e → Positive terminal of Cell 13\u003c\/li\u003e\n\u003cli\u003eUse 22-24 AWG wire for balance connections\u003c\/li\u003e\n\u003cli\u003eLabel each wire BEFORE connecting (critical with 14 wires!)\u003c\/li\u003e\n\u003cli\u003eUse numbered labels or color coding\u003c\/li\u003e\n\u003cli\u003eConnect in sequence from B- to B+\u003c\/li\u003e\n\u003cli\u003eVerify each connection with multimeter (~3.6-4.2V between adjacent points)\u003c\/li\u003e\n\u003cli\u003eTotal voltage B- to B+ should be ~46.8V-54.6V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 4: Connect Main Power Wires\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eBattery Side:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eB-\u003c\/strong\u003e to battery pack negative using appropriate gauge wire\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eB+\u003c\/strong\u003e to battery pack positive using appropriate gauge wire\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLoad\/Charger Side:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eP-\u003c\/strong\u003e to load\/charger negative\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eP+\u003c\/strong\u003e to load\/charger positive\u003c\/li\u003e\n\u003cli\u003eUse heavy gauge wire for high current models\u003c\/li\u003e\n\u003cli\u003eEnsure all connections are solid and well-insulated\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 5: Verify All Connections\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCRITICAL - Check before power-on:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e✅ All 14 balance wires connected in correct sequence\u003c\/li\u003e\n\u003cli\u003e✅ No reversed polarity on any connection\u003c\/li\u003e\n\u003cli\u003e✅ All solder joints solid and insulated\u003c\/li\u003e\n\u003cli\u003e✅ No short circuits between wires\u003c\/li\u003e\n\u003cli\u003e✅ Verify voltage at each balance point with multimeter\u003c\/li\u003e\n\u003cli\u003e✅ Total pack voltage should be 46.8V-54.6V\u003c\/li\u003e\n\u003cli\u003e✅ Each cell voltage should be 3.6V-4.2V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 6: Initial Testing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect battery pack to BMS\u003c\/li\u003e\n\u003cli\u003eMeasure voltage at P+ and P- (should read full pack voltage)\u003c\/li\u003e\n\u003cli\u003eIf no output: BMS in protection mode, connect charger briefly to wake\u003c\/li\u003e\n\u003cli\u003eTest with low current load first (1-2A)\u003c\/li\u003e\n\u003cli\u003eMonitor BMS temperature for first 30 minutes\u003c\/li\u003e\n\u003cli\u003eVerify protection functions work correctly\u003c\/li\u003e\n\u003cli\u003eCheck cell balancing is functioning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 7: Final Assembly\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApply heat shrink tubing to all connections\u003c\/li\u003e\n\u003cli\u003eSecure BMS in enclosure with foam padding\u003c\/li\u003e\n\u003cli\u003eEnsure adequate ventilation around BMS\u003c\/li\u003e\n\u003cli\u003eRoute balance wires neatly, avoid sharp bends\u003c\/li\u003e\n\u003cli\u003eKeep balance wires away from high-current wires\u003c\/li\u003e\n\u003cli\u003eLabel output terminals clearly: \"48V - P+ and P-\"\u003c\/li\u003e\n\u003cli\u003eAdd voltage warning label if needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Safety Precautions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ CRITICAL SAFETY WARNINGS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ \u003cstrong\u003eNEVER use on wrong cell count - 13S ONLY\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT exceed rated current capacity\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT reverse polarity - instant destruction\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT skip balance wires - will not protect properly\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT use with LiFePO4 batteries - Li-ion\/LiPo ONLY\u003c\/li\u003e\n\u003cli\u003e✅ Verify exactly 13 cells in series\u003c\/li\u003e\n\u003cli\u003e✅ Ensure all cells balanced (within 0.05V)\u003c\/li\u003e\n\u003cli\u003e✅ Select BMS current rating 20-30% higher than max load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBalance Wire Connection Tips:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWith 14 balance wires, organization is critical\u003c\/li\u003e\n\u003cli\u003eCreate a numbered diagram before starting\u003c\/li\u003e\n\u003cli\u003eLabel each wire with permanent marker or tape\u003c\/li\u003e\n\u003cli\u003eUse different colored wires if possible\u003c\/li\u003e\n\u003cli\u003eWork methodically from B- to B+\u003c\/li\u003e\n\u003cli\u003eTest each connection before moving to next\u003c\/li\u003e\n\u003cli\u003eOne mistake can destroy the BMS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Mistakes to Avoid:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ Balance wires in wrong order (most common)\u003c\/li\u003e\n\u003cli\u003e❌ Skipping balance wire connections\u003c\/li\u003e\n\u003cli\u003e❌ Using wire too thin for current rating\u003c\/li\u003e\n\u003cli\u003e❌ Not insulating connections properly\u003c\/li\u003e\n\u003cli\u003e❌ Exceeding current rating of BMS\u003c\/li\u003e\n\u003cli\u003e❌ Mounting BMS directly against cells\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo output voltage:\u003c\/strong\u003e BMS in protection mode, connect charger briefly to reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS keeps shutting off:\u003c\/strong\u003e Current exceeds rating or balance wire issue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWon't charge:\u003c\/strong\u003e Check balance wires, verify charger voltage (54.6V for 13S)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS overheating:\u003c\/strong\u003e Current too high or poor ventilation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCells not balancing:\u003c\/strong\u003e Verify all 14 balance wire connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCommon Applications for 13S 48V BMS\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Bicycles:\u003c\/strong\u003e 48V e-bikes (most common 48V system)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Scooters:\u003c\/strong\u003e 48V electric scooters and kick scooters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Energy Systems:\u003c\/strong\u003e 48V solar battery banks, off-grid systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Motorcycles:\u003c\/strong\u003e Small electric motorcycles and mopeds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGolf Carts:\u003c\/strong\u003e 48V golf cart conversions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackup Power:\u003c\/strong\u003e 48V UPS systems, telecom backup\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY Projects:\u003c\/strong\u003e Custom 48V battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Tools:\u003c\/strong\u003e Professional 48V cordless tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Use BMS for 48V Battery Packs?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEssential Protection:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrevents overcharging - extends battery life from 500 to 1000+ cycles\u003c\/li\u003e\n\u003cli\u003ePrevents over-discharge - protects cells from permanent damage\u003c\/li\u003e\n\u003cli\u003eBalances 13 cells during charging - ensures all cells age evenly\u003c\/li\u003e\n\u003cli\u003eProtects against short circuits and overcurrent - prevents fires\u003c\/li\u003e\n\u003cli\u003eTemperature protection - prevents thermal damage\u003c\/li\u003e\n\u003cli\u003eRequired for safe 48V multi-cell operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLong-Term Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximizes battery pack lifespan (can last 5-10 years with BMS)\u003c\/li\u003e\n\u003cli\u003eMaintains optimal performance throughout battery life\u003c\/li\u003e\n\u003cli\u003ePrevents costly battery replacement\u003c\/li\u003e\n\u003cli\u003eProtects expensive e-bike or solar investment\u003c\/li\u003e\n\u003cli\u003eProvides peace of mind for daily use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWarranty \u0026amp; Support\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWe stand behind the quality of our FMA BMS boards. If you experience any issues, please contact us for support. Always follow installation instructions carefully and verify all connections before applying power. \u003cstrong\u003eImproper installation, reversed polarity, or using wrong voltage configuration will void warranty.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNeed Help?\u003c\/strong\u003e If you're unsure about any step of the installation process, please contact us before proceeding. We're here to help ensure your 48V battery pack is safe and reliable.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"48.1V 10A 88x45mm","offer_id":46447913992381,"sku":"FPML13S100W001","price":23.57,"currency_code":"USD","in_stock":true},{"title":"48.1V 15A 55x40x17mm","offer_id":46447914025149,"sku":"FPML13S150F876","price":22.84,"currency_code":"USD","in_stock":true},{"title":"48.1V 20A 65x35x11mm","offer_id":46447914057917,"sku":"FPML13S200FB71","price":20.96,"currency_code":"USD","in_stock":true},{"title":"48.1V 20A 65x35x9mm","offer_id":46447914090685,"sku":"FPML13S200FB72","price":17.25,"currency_code":"USD","in_stock":true},{"title":"48.1V 25A 125x55x11mm","offer_id":46447914123453,"sku":"FPML13S250FB37","price":27.15,"currency_code":"USD","in_stock":true},{"title":"48.1V 30A 120x50x9mm","offer_id":46447914156221,"sku":"FPML13S300FA01","price":27.6,"currency_code":"USD","in_stock":true},{"title":"48.1V 30A 80x60x11mm","offer_id":46447914188989,"sku":"FPML13S300FB73","price":26.17,"currency_code":"USD","in_stock":true},{"title":"48.1V 40A 22x60x100mm","offer_id":46447914221757,"sku":"FPML13S400F911","price":39.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_d80b30ed-ae47-4b91-8e7c-ca4d8597ef27.jpg?v=1772513065"},{"product_id":"16s-57-6v-59-2v-li-ion-lipo-battery-pcm-bms-balance-protect-circuit-board-module","title":"16S 57.6V 59.2V Li-ion LiPo Battery PCM BMS Balance Protect Circuit Board Module","description":"\u003ch2\u003e\u003cstrong\u003e16S 57.6V\/59.2V Li-ion\/LiPo Battery Protection Board (BMS\/PCM) - High Voltage Protection\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional Battery Management System (BMS) \/ Protection Circuit Module (PCM) specifically designed for high-voltage 16S (57.6V\/59.2V) lithium-ion and lithium-polymer battery packs. Available in 4 models with current ratings from 5A to 80A. Features comprehensive protection including overcharge, over-discharge, overcurrent, short circuit, and temperature protection, plus built-in 16-cell balancing function. Perfect for high-voltage DIY battery packs, electric vehicles, e-bikes, solar energy storage, and high-power applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Voltage Support:\u003c\/strong\u003e 16S configuration (57.6V nominal, 59.2V max)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 Models Available:\u003c\/strong\u003e 5A, 35A, 60A, 80A current ratings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLi-ion\/LiPo Compatible:\u003c\/strong\u003e Works with both lithium-ion and lithium-polymer batteries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, short circuit, temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16-Cell Balancing:\u003c\/strong\u003e Built-in balancing for all 16 cells\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Components:\u003c\/strong\u003e High-quality MOSFETs and protection ICs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVarious Sizes:\u003c\/strong\u003e Different form factors for different applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Self-Consumption:\u003c\/strong\u003e Minimal power drain\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× 16S Li-ion\/LiPo Protection Board (BMS\/PCM) - model as selected\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAvailable Models\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCurrent\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSize (mm)\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e5A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e80 × 40 × 25\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLow current applications, compact packs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e35A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e35A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e120 × 65 × 9\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eE-bikes, medium power applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e60A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e60A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e120 × 80 × 30\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eElectric scooters, high power e-bikes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e80A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e80A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e155 × 70 × 25\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eElectric motorcycles, high power EVs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e16S (16 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e57.6V (Li-ion) \/ 59.2V (LiPo)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4.2V per cell (67.2V total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V-3.0V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBalance Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eYes - all 16 cells\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLi-ion \/ LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e~100g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPML16S.png?v=1772523534\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eProtection Type\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when any cell exceeds 4.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when any cell drops below safe voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when current exceeds rated limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eShort Circuit Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eInstantly disconnects on short circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e16-Cell Balancing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBalances all 16 cells during charging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTemperature Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eProtects against overheating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eStep-by-Step Installation Instructions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ WARNING: 16S = 67.2V Maximum - High Voltage! Take Extra Precautions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStep 1: Preparation \u0026amp; Safety\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCRITICAL:\u003c\/strong\u003e Disconnect all power sources before starting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHIGH VOLTAGE WARNING:\u003c\/strong\u003e 16S battery can reach 67.2V - potentially lethal\u003c\/li\u003e\n\u003cli\u003eVerify you have exactly 16 Li-ion or LiPo cells in series\u003c\/li\u003e\n\u003cli\u003eSelect correct BMS model based on maximum current draw\u003c\/li\u003e\n\u003cli\u003ePrepare tools: soldering iron, solder, wire cutters, multimeter, heat shrink tubing\u003c\/li\u003e\n\u003cli\u003eWire gauge recommendations:\u003c\/li\u003e\n\u003cli\u003e5A: 16-18 AWG\u003c\/li\u003e\n\u003cli\u003e35A: 10-12 AWG\u003c\/li\u003e\n\u003cli\u003e60A: 8-10 AWG\u003c\/li\u003e\n\u003cli\u003e80A: 6-8 AWG\u003c\/li\u003e\n\u003cli\u003eWear insulated gloves when working with high voltage\u003c\/li\u003e\n\u003cli\u003eWork on insulated surface\u003c\/li\u003e\n\u003cli\u003eHave fire extinguisher nearby\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 2: Identify Connection Points\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLocate connection points on BMS:\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB-\u003c\/strong\u003e (Battery Negative): Connect to negative terminal of battery pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB+\u003c\/strong\u003e (Battery Positive): Connect to positive terminal of battery pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP-\u003c\/strong\u003e (Load\/Charger Negative): Output negative terminal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP+\u003c\/strong\u003e (Load\/Charger Positive): Output positive terminal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalance Wires (16S):\u003c\/strong\u003e B-, B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12, B13, B14, B15, B+\u003c\/li\u003e\n\u003cli\u003eStudy wiring diagram carefully before proceeding\u003c\/li\u003e\n\u003cli\u003eTake photos for reference\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 3: Connect Balance Wires (Most Critical Step)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eFor 16S Configuration - 17 balance wire connections:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB-\u003c\/strong\u003e → Negative terminal of Cell 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB1\u003c\/strong\u003e → Connection between Cell 1 and Cell 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB2\u003c\/strong\u003e → Connection between Cell 2 and Cell 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB3\u003c\/strong\u003e → Connection between Cell 3 and Cell 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB4\u003c\/strong\u003e → Connection between Cell 4 and Cell 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB5\u003c\/strong\u003e → Connection between Cell 5 and Cell 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB6\u003c\/strong\u003e → Connection between Cell 6 and Cell 7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB7\u003c\/strong\u003e → Connection between Cell 7 and Cell 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB8\u003c\/strong\u003e → Connection between Cell 8 and Cell 9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB9\u003c\/strong\u003e → Connection between Cell 9 and Cell 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB10\u003c\/strong\u003e → Connection between Cell 10 and Cell 11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB11\u003c\/strong\u003e → Connection between Cell 11 and Cell 12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB12\u003c\/strong\u003e → Connection between Cell 12 and Cell 13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB13\u003c\/strong\u003e → Connection between Cell 13 and Cell 14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB14\u003c\/strong\u003e → Connection between Cell 14 and Cell 15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB15\u003c\/strong\u003e → Connection between Cell 15 and Cell 16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB+\u003c\/strong\u003e → Positive terminal of Cell 16\u003c\/li\u003e\n\u003cli\u003eUse 22-24 AWG wire for balance connections\u003c\/li\u003e\n\u003cli\u003eLabel EVERY wire before connecting (critical with 17 wires!)\u003c\/li\u003e\n\u003cli\u003eUse numbered labels or color coding\u003c\/li\u003e\n\u003cli\u003eConnect in sequence from B- to B+\u003c\/li\u003e\n\u003cli\u003eVerify each connection with multimeter (~3.6-4.2V between adjacent points)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 4: Connect Main Power Wires\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eBattery Side:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eB-\u003c\/strong\u003e to battery pack negative using appropriate gauge wire\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eB+\u003c\/strong\u003e to battery pack positive using appropriate gauge wire\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLoad\/Charger Side:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eP-\u003c\/strong\u003e to load\/charger negative\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eP+\u003c\/strong\u003e to load\/charger positive\u003c\/li\u003e\n\u003cli\u003eUse heavy gauge wire for high current models\u003c\/li\u003e\n\u003cli\u003eEnsure all connections are solid and well-insulated\u003c\/li\u003e\n\u003cli\u003eConsider using ring terminals for secure connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 5: Verify All Connections\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCRITICAL - Check before power-on:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e✅ All 17 balance wires connected in correct sequence\u003c\/li\u003e\n\u003cli\u003e✅ No reversed polarity on any connection\u003c\/li\u003e\n\u003cli\u003e✅ All solder joints solid and insulated\u003c\/li\u003e\n\u003cli\u003e✅ No short circuits between wires\u003c\/li\u003e\n\u003cli\u003e✅ Verify voltage at each balance point with multimeter\u003c\/li\u003e\n\u003cli\u003e✅ Total pack voltage should be 57.6V-67.2V\u003c\/li\u003e\n\u003cli\u003e✅ Each cell voltage should be 3.6V-4.2V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 6: Initial Testing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect battery pack to BMS\u003c\/li\u003e\n\u003cli\u003eMeasure voltage at P+ and P- (should read full pack voltage)\u003c\/li\u003e\n\u003cli\u003eIf no output: BMS in protection mode, connect charger briefly to wake\u003c\/li\u003e\n\u003cli\u003eTest with low current load first (1-2A)\u003c\/li\u003e\n\u003cli\u003eMonitor BMS temperature for first 30 minutes\u003c\/li\u003e\n\u003cli\u003eVerify protection functions work\u003c\/li\u003e\n\u003cli\u003eCheck cell balancing is functioning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 7: Final Assembly\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApply heat shrink to all connections\u003c\/li\u003e\n\u003cli\u003eSecure BMS in enclosure with foam padding\u003c\/li\u003e\n\u003cli\u003eEnsure excellent ventilation (high current = heat)\u003c\/li\u003e\n\u003cli\u003eRoute balance wires neatly, avoid sharp bends\u003c\/li\u003e\n\u003cli\u003eKeep balance wires away from high-current wires\u003c\/li\u003e\n\u003cli\u003eLabel output terminals clearly with voltage warning\u003c\/li\u003e\n\u003cli\u003eAdd warning label: \"HIGH VOLTAGE - 67.2V MAX\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Safety Precautions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ CRITICAL HIGH VOLTAGE WARNINGS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ \u003cstrong\u003eNEVER use on wrong cell count - 16S ONLY\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT exceed rated current\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT reverse polarity - instant destruction\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT skip balance wires - will not protect properly\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT use with LiFePO4 batteries - Li-ion\/LiPo ONLY\u003c\/li\u003e\n\u003cli\u003e✅ Verify exactly 16 cells in series\u003c\/li\u003e\n\u003cli\u003e✅ Ensure all cells balanced (within 0.05V)\u003c\/li\u003e\n\u003cli\u003e✅ Use proper wire gauge for current rating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Voltage Safety:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e67.2V can cause serious injury or death\u003c\/li\u003e\n\u003cli\u003eAlways disconnect power before working on pack\u003c\/li\u003e\n\u003cli\u003eUse insulated tools\u003c\/li\u003e\n\u003cli\u003eWear insulated gloves\u003c\/li\u003e\n\u003cli\u003eWork on insulated surface\u003c\/li\u003e\n\u003cli\u003eNever work alone on high voltage packs\u003c\/li\u003e\n\u003cli\u003eKeep one hand in pocket when testing (prevents current through heart)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBalance Wire Connection Tips:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWith 17 balance wires, organization is critical\u003c\/li\u003e\n\u003cli\u003eCreate a numbered diagram before starting\u003c\/li\u003e\n\u003cli\u003eLabel each wire with permanent marker or tape\u003c\/li\u003e\n\u003cli\u003eUse different colored wires if possible\u003c\/li\u003e\n\u003cli\u003eWork methodically from B- to B+\u003c\/li\u003e\n\u003cli\u003eTest each connection before moving to next\u003c\/li\u003e\n\u003cli\u003eOne mistake can destroy the BMS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Mistakes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ Balance wires in wrong order (most common with 16S)\u003c\/li\u003e\n\u003cli\u003e❌ Skipping balance wire connections\u003c\/li\u003e\n\u003cli\u003e❌ Using wire too thin for current\u003c\/li\u003e\n\u003cli\u003e❌ Not insulating high voltage connections properly\u003c\/li\u003e\n\u003cli\u003e❌ Exceeding current rating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo output voltage:\u003c\/strong\u003e BMS in protection, connect charger to reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS shuts off:\u003c\/strong\u003e Current exceeds rating or balance wire issue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWon't charge:\u003c\/strong\u003e Check balance wires, verify charger voltage (67.2V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverheating:\u003c\/strong\u003e Current too high or poor ventilation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCells not balancing:\u003c\/strong\u003e Verify all 17 balance connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCommon Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Vehicles:\u003c\/strong\u003e E-bikes, electric scooters, electric motorcycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Energy Storage:\u003c\/strong\u003e 48V solar battery banks (16S = 57.6V nominal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Power Tools:\u003c\/strong\u003e Professional cordless tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Skateboards:\u003c\/strong\u003e High performance boards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY Projects:\u003c\/strong\u003e Custom high-voltage battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackup Power:\u003c\/strong\u003e High voltage UPS systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Use BMS for High Voltage Packs?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEssential for safety with 67.2V maximum voltage\u003c\/li\u003e\n\u003cli\u003ePrevents overcharging - extends battery life\u003c\/li\u003e\n\u003cli\u003eBalances 16 cells - ensures even aging\u003c\/li\u003e\n\u003cli\u003eProtects against dangerous failures\u003c\/li\u003e\n\u003cli\u003eRequired for safe high-voltage operation\u003c\/li\u003e\n\u003cli\u003eProtects expensive battery investment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWarranty \u0026amp; Support\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWe stand behind our BMS boards. If you experience issues, contact us for support. \u003cstrong\u003eAlways follow installation instructions carefully. Improper installation of high-voltage systems can be dangerous. If unsure, consult a professional.\u003c\/strong\u003e\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"57.6V 5A 80x40x25mm","offer_id":46447914254525,"sku":"FPML16S050F729","price":21.55,"currency_code":"USD","in_stock":true},{"title":"57.6V 35A 120x65x9mm","offer_id":46447914287293,"sku":"FPML16S350F922","price":37.46,"currency_code":"USD","in_stock":true},{"title":"57.6V 60A 120x80x30mm","offer_id":46447914320061,"sku":"FPML16S600F562","price":51.27,"currency_code":"USD","in_stock":true},{"title":"57.6V 80A 155x70x25mm","offer_id":46447914352829,"sku":"FPML16S800F920","price":84.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/57_aedef5f1-af05-45a3-a8cb-57acef06eb34.jpg?v=1772513069"},{"product_id":"lifepo4-5s-16v-12s-38-4v-li-fe-battery-protect-circuit-management-board-pcm-bms","title":"LiFePO4 5S 16V 12S 38.4V Li-Fe Battery Protect Circuit Management Board PCM BMS","description":"\u003ch2\u003e\u003cstrong\u003eLiFePO4 Battery Protection Board (BMS\/PCM) - 5S\/12S High Voltage Li-Fe Protection\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional Battery Management System (BMS) \/ Protection Circuit Module (PCM) specifically designed for high-voltage LiFePO4 (Lithium Iron Phosphate) battery packs. Available in two configurations: 5S (16V, 20A) and 12S (38.4V, 24A). Features comprehensive protection including overcharge, over-discharge, overcurrent, and short circuit protection. Perfect for DIY LiFePO4 battery packs, solar systems, electric vehicles, and high-power applications requiring reliable battery protection.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Voltage Support:\u003c\/strong\u003e 5S (16V) and 12S (38.4V) configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Current Rating:\u003c\/strong\u003e 20A and 24A continuous current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiFePO4 Specific:\u003c\/strong\u003e Calibrated for Li-Fe voltage characteristics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, short circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Balancing:\u003c\/strong\u003e Built-in balancing function for multi-cell packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Components:\u003c\/strong\u003e Reliable MOSFETs and protection ICs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Self-Consumption:\u003c\/strong\u003e Minimal power drain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Protection:\u003c\/strong\u003e Built-in thermal protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× LiFePO4 Protection Board (BMS\/PCM) - configuration as selected\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAvailable Configurations\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eConfiguration\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eVoltage\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCurrent\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSize (mm)\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e5S 20A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e16V (5 cells)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e42 × 126\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eE-bikes, power tools, 16V systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e12S 24A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e38.4V (12 cells)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e24A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e63 × 126\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSolar systems, electric vehicles, 36V systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5S 20A\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003e12S 24A\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e16V (5S)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e38.4V (12S)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eContinuous Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e24A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3.65V per cell\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3.65V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V per cell\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2.5V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBoard Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e42mm × 126mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e63mm × 126mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBalance Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e~100g\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e~100g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPME05-12S.png?v=1772521316\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eProtection Type\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when any cell exceeds 3.65V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when any cell drops below 2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when current exceeds rated limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eShort Circuit Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eInstantly disconnects on short circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCell Balancing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBalances cells during charging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTemperature Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eProtects against overheating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eStep-by-Step Installation Instructions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e✅ Follow These Steps Carefully for Safe Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStep 1: Preparation \u0026amp; Safety\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCRITICAL:\u003c\/strong\u003e Ensure all power sources are disconnected\u003c\/li\u003e\n\u003cli\u003eVerify you have the correct BMS (5S for 16V or 12S for 38.4V)\u003c\/li\u003e\n\u003cli\u003eCount your battery cells to confirm configuration\u003c\/li\u003e\n\u003cli\u003ePrepare tools: soldering iron, solder, wire cutters, multimeter, heat shrink tubing\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge: 12-14 AWG for 20-24A applications\u003c\/li\u003e\n\u003cli\u003eWork in a well-ventilated area with proper lighting\u003c\/li\u003e\n\u003cli\u003eWear safety glasses and work gloves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 2: Identify Connection Points\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLocate the following connection points on the BMS:\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB-\u003c\/strong\u003e (Battery Negative): Connect to negative terminal of battery pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB+\u003c\/strong\u003e (Battery Positive): Connect to positive terminal of battery pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP-\u003c\/strong\u003e (Load\/Charger Negative): Output negative terminal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP+\u003c\/strong\u003e (Load\/Charger Positive): Output positive terminal\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBalance Wires:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e5S: B-, B1, B2, B3, B4, B+\u003c\/li\u003e\n\u003cli\u003e12S: B-, B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B+\u003c\/li\u003e\n\u003cli\u003eRefer to the wiring diagram on the board or documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 3: Connect Balance Wires\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eFor 5S (16V):\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eB- to negative terminal of cell 1\u003c\/li\u003e\n\u003cli\u003eB1 to connection between cell 1 and cell 2\u003c\/li\u003e\n\u003cli\u003eB2 to connection between cell 2 and cell 3\u003c\/li\u003e\n\u003cli\u003eB3 to connection between cell 3 and cell 4\u003c\/li\u003e\n\u003cli\u003eB4 to connection between cell 4 and cell 5\u003c\/li\u003e\n\u003cli\u003eB+ to positive terminal of cell 5\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFor 12S (38.4V):\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eB- to negative terminal of cell 1\u003c\/li\u003e\n\u003cli\u003eB1 through B11 to each connection point between cells\u003c\/li\u003e\n\u003cli\u003eB+ to positive terminal of cell 12\u003c\/li\u003e\n\u003cli\u003eUse 22-24 AWG wire for balance connections\u003c\/li\u003e\n\u003cli\u003eLabel each wire before connecting\u003c\/li\u003e\n\u003cli\u003eDouble-check sequence before soldering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 4: Connect Main Power Wires\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eBattery Side:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eB-\u003c\/strong\u003e to battery pack negative terminal using 12-14 AWG wire\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eB+\u003c\/strong\u003e to battery pack positive terminal using 12-14 AWG wire\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLoad\/Charger Side:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eP-\u003c\/strong\u003e to load\/charger negative using 12-14 AWG wire\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eP+\u003c\/strong\u003e to load\/charger positive using 12-14 AWG wire\u003c\/li\u003e\n\u003cli\u003eEnsure all connections are solid and well-insulated\u003c\/li\u003e\n\u003cli\u003eUse crimped ring terminals for secure connections if possible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 5: Verify All Connections\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eBEFORE applying power, verify:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eAll balance wires are connected in correct sequence\u003c\/li\u003e\n\u003cli\u003eNo reversed polarity on any connection\u003c\/li\u003e\n\u003cli\u003eAll solder joints are solid and insulated\u003c\/li\u003e\n\u003cli\u003eNo short circuits between adjacent wires\u003c\/li\u003e\n\u003cli\u003eUse multimeter to check voltage at each balance point\u003c\/li\u003e\n\u003cli\u003eVerify total pack voltage matches expected value\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 6: Initial Testing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect battery pack to BMS\u003c\/li\u003e\n\u003cli\u003eMeasure voltage at P+ and P- terminals\u003c\/li\u003e\n\u003cli\u003eShould read full pack voltage (16V or 38.4V nominal)\u003c\/li\u003e\n\u003cli\u003eIf no output voltage, BMS may be in protection mode\u003c\/li\u003e\n\u003cli\u003eConnect charger briefly to wake up BMS\u003c\/li\u003e\n\u003cli\u003eTest with low-current load first (1-2A)\u003c\/li\u003e\n\u003cli\u003eMonitor BMS temperature during initial use\u003c\/li\u003e\n\u003cli\u003eVerify protection functions work correctly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 7: Final Assembly \u0026amp; Insulation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApply heat shrink tubing to all exposed connections\u003c\/li\u003e\n\u003cli\u003eSecure BMS board inside battery pack enclosure\u003c\/li\u003e\n\u003cli\u003eUse foam padding to prevent BMS from touching cells\u003c\/li\u003e\n\u003cli\u003eEnsure adequate ventilation around BMS\u003c\/li\u003e\n\u003cli\u003eRoute wires neatly to avoid pinching\u003c\/li\u003e\n\u003cli\u003eLabel positive and negative output terminals clearly\u003c\/li\u003e\n\u003cli\u003ePerform final voltage and continuity checks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Installation Precautions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ CRITICAL SAFETY WARNINGS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ \u003cstrong\u003eNEVER use 5S BMS on 12S battery or vice versa\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT exceed rated current (20A or 24A)\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT reverse polarity - will destroy BMS instantly\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT skip balance wire connections\u003c\/li\u003e\n\u003cli\u003e✅ Verify cell count matches BMS configuration\u003c\/li\u003e\n\u003cli\u003e✅ Ensure all cells are balanced before installation\u003c\/li\u003e\n\u003cli\u003e✅ Use proper wire gauge (12-14 AWG for main power)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBalance Wire Connection Tips:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWork methodically from B- to B+\u003c\/li\u003e\n\u003cli\u003eLabel each wire with cell number before connecting\u003c\/li\u003e\n\u003cli\u003eUse different colored wires if possible\u003c\/li\u003e\n\u003cli\u003eKeep balance wires away from high-current wires\u003c\/li\u003e\n\u003cli\u003eDouble-check sequence - incorrect order will damage BMS\u003c\/li\u003e\n\u003cli\u003eTest each connection with multimeter before final assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Mistakes to Avoid:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ Connecting balance wires in wrong order\u003c\/li\u003e\n\u003cli\u003e❌ Using wire gauge too small for current\u003c\/li\u003e\n\u003cli\u003e❌ Forgetting to insulate solder joints\u003c\/li\u003e\n\u003cli\u003e❌ Mounting BMS directly against battery cells\u003c\/li\u003e\n\u003cli\u003e❌ Not testing before final assembly\u003c\/li\u003e\n\u003cli\u003e❌ Exceeding current rating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo output voltage:\u003c\/strong\u003e BMS in protection mode, connect charger to reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS shuts off under load:\u003c\/strong\u003e Check current draw, verify wire gauge adequate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWon't charge:\u003c\/strong\u003e Verify balance wires correct, check charger voltage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS overheating:\u003c\/strong\u003e Current exceeds rating or poor ventilation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCells not balancing:\u003c\/strong\u003e Check balance wire connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCommon Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e5S 16V 20A Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eElectric bicycles (16V systems)\u003c\/li\u003e\n\u003cli\u003ePower tool battery packs\u003c\/li\u003e\n\u003cli\u003ePortable power stations\u003c\/li\u003e\n\u003cli\u003eDIY battery projects\u003c\/li\u003e\n\u003cli\u003eSmall electric vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e12S 38.4V 24A Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSolar energy storage systems (36V nominal)\u003c\/li\u003e\n\u003cli\u003eElectric bicycles and scooters (36V systems)\u003c\/li\u003e\n\u003cli\u003eGolf carts and small EVs\u003c\/li\u003e\n\u003cli\u003eMarine and RV house batteries\u003c\/li\u003e\n\u003cli\u003eUPS and backup power systems\u003c\/li\u003e\n\u003cli\u003eHigh-power portable generators\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose LiFePO4 BMS?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEssential Protection:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrevents overcharging - extends battery life significantly\u003c\/li\u003e\n\u003cli\u003ePrevents over-discharge - protects cells from permanent damage\u003c\/li\u003e\n\u003cli\u003eBalances cells during charging - ensures even wear\u003c\/li\u003e\n\u003cli\u003eProtects against short circuits and overcurrent\u003c\/li\u003e\n\u003cli\u003eRequired for safe multi-cell LiFePO4 operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLong-Term Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximizes battery pack lifespan (2000+ cycles)\u003c\/li\u003e\n\u003cli\u003eMaintains cell balance for optimal performance\u003c\/li\u003e\n\u003cli\u003ePrevents costly battery replacement\u003c\/li\u003e\n\u003cli\u003eProvides peace of mind for high-value applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWarranty \u0026amp; Support\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWe stand behind the quality of our BMS boards. If you experience any issues, please contact us for support. Always follow installation instructions carefully and verify all connections before applying power. Improper installation may void warranty.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"16V 20A 42x126mm","offer_id":46447914385597,"sku":"FPME05S200F408","price":19.93,"currency_code":"USD","in_stock":true},{"title":"38.4V 24A 63x126mm","offer_id":46447914418365,"sku":"FPME12S250F354","price":32.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_f8e543aa-8d05-4030-877e-464297c67a5c.jpg?v=1772513072"},{"product_id":"li-fe-battery-3-2v-6-4v-9-6v-protection-circuit-management-board-lifepo4-pcm-bms","title":"Li-Fe Battery 3.2V 6.4V 9.6V Protection Circuit Management Board LiFePO4 PCM BMS","description":"\u003ch2\u003e\u003cstrong\u003eLiFePO4 Battery Protection Board (BMS\/PCM) - 1S\/2S\/3S Li-Fe Protection Circuit\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional Battery Management System (BMS) \/ Protection Circuit Module (PCM) specifically designed for LiFePO4 (Lithium Iron Phosphate) batteries. Available in multiple configurations for 1S (3.2V), 2S (6.4V), and 3S (9.6V) battery packs with current ratings from 2A to 20A. Features comprehensive protection including overcharge, over-discharge, overcurrent, and short circuit protection. Essential for DIY LiFePO4 battery packs, ensuring safe and reliable operation.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiFePO4 Specific:\u003c\/strong\u003e Calibrated for Li-Fe voltage characteristics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Configurations:\u003c\/strong\u003e 1S\/2S\/3S with various current ratings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Protection:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, short circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Sizes:\u003c\/strong\u003e Various sizes from 10×30mm to 34×60mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Clear wiring diagrams and connection points\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Quality:\u003c\/strong\u003e Reliable components for long-term use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Self-Consumption:\u003c\/strong\u003e Minimal power drain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Protection:\u003c\/strong\u003e Built-in thermal protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× LiFePO4 Protection Board (BMS\/PCM) - configuration as selected\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAvailable Configurations\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eConfiguration\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eVoltage\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCurrent\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSize (mm)\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e1S 3A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3.2V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e26mm round\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSingle cell, low current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e1S 10A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3.2V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e7.4 × 36\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSingle cell, higher current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e2S 7A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e6.4V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e7A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e15 × 30\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2 cells, compact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e2S 12A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e6.4V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e12A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e21 × 45\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2 cells, higher current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e3S 2A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e9.6V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10 × 30\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3 cells, low current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e3S 8A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e9.6V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e8A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e22 × 50\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3 cells, medium current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e3S 16A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e9.6V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e16A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e31 × 62\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3 cells, high current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e3S 20A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e9.6V\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e34 × 60\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3 cells, maximum current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPME01S.png?v=1772519909\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPME02S.png?v=1772519923\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/FPME03S.png?v=1772519937\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eProtection Type\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when voltage exceeds 3.65V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOver-discharge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when voltage drops below 2.5V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOvercurrent Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDisconnects when current exceeds rated limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eShort Circuit Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eInstantly disconnects on short circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTemperature Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eProtects against overheating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eStep-by-Step Installation Instructions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e✅ Follow These Steps Carefully for Safe Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStep 1: Preparation \u0026amp; Safety\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCRITICAL:\u003c\/strong\u003e Ensure all power sources are disconnected\u003c\/li\u003e\n\u003cli\u003eVerify you have the correct BMS for your battery configuration (1S\/2S\/3S)\u003c\/li\u003e\n\u003cli\u003eCheck current rating matches or exceeds your application needs\u003c\/li\u003e\n\u003cli\u003ePrepare tools: soldering iron, solder, wire cutters, multimeter\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge for the current rating\u003c\/li\u003e\n\u003cli\u003eWork in a well-ventilated area\u003c\/li\u003e\n\u003cli\u003eWear safety glasses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 2: Identify Connection Points\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLocate the following pads\/wires on the BMS board:\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB-\u003c\/strong\u003e (Battery Negative): Connect to negative terminal of battery pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eB+\u003c\/strong\u003e (Battery Positive): Connect to positive terminal of battery pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP-\u003c\/strong\u003e (Load\/Charger Negative): Output negative terminal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP+\u003c\/strong\u003e (Load\/Charger Positive): Output positive terminal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalance Wires\u003c\/strong\u003e (for 2S\/3S): B-, B1, B2, B+ (or B3 for 3S)\u003c\/li\u003e\n\u003cli\u003eRefer to the wiring diagram (usually printed on the board or provided)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 3: Connect Balance Wires (2S\/3S Only)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eFor 2S (6.4V):\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eB- to negative terminal of first cell\u003c\/li\u003e\n\u003cli\u003eB1 to connection point between cell 1 and cell 2\u003c\/li\u003e\n\u003cli\u003eB+ to positive terminal of second cell\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFor 3S (9.6V):\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eB- to negative terminal of first cell\u003c\/li\u003e\n\u003cli\u003eB1 to connection point between cell 1 and cell 2\u003c\/li\u003e\n\u003cli\u003eB2 to connection point between cell 2 and cell 3\u003c\/li\u003e\n\u003cli\u003eB+ to positive terminal of third cell\u003c\/li\u003e\n\u003cli\u003eUse thin wires (22-24 AWG) for balance connections\u003c\/li\u003e\n\u003cli\u003eDouble-check polarity before soldering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 4: Connect Main Power Wires\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eBattery Side:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eB-\u003c\/strong\u003e to battery pack negative terminal\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eB+\u003c\/strong\u003e to battery pack positive terminal\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLoad\/Charger Side:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eP-\u003c\/strong\u003e to load\/charger negative\u003c\/li\u003e\n\u003cli\u003eConnect \u003cstrong\u003eP+\u003c\/strong\u003e to load\/charger positive\u003c\/li\u003e\n\u003cli\u003eUse appropriate wire gauge based on current rating:\u003c\/li\u003e\n\u003cli\u003e2-3A: 20-22 AWG\u003c\/li\u003e\n\u003cli\u003e7-10A: 16-18 AWG\u003c\/li\u003e\n\u003cli\u003e12-16A: 14-16 AWG\u003c\/li\u003e\n\u003cli\u003e20A: 12-14 AWG\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 5: Verify Connections\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eBEFORE applying power, double-check:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eAll polarity is correct (+ to +, - to -)\u003c\/li\u003e\n\u003cli\u003eBalance wires are connected in correct order\u003c\/li\u003e\n\u003cli\u003eNo short circuits between wires\u003c\/li\u003e\n\u003cli\u003eAll solder joints are solid and insulated\u003c\/li\u003e\n\u003cli\u003eUse multimeter to verify voltage at each connection point\u003c\/li\u003e\n\u003cli\u003eEnsure no bare wires are touching\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 6: Initial Testing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect battery pack to BMS\u003c\/li\u003e\n\u003cli\u003eMeasure voltage at P+ and P- (should match battery voltage)\u003c\/li\u003e\n\u003cli\u003eIf no voltage at output, BMS may be in protection mode\u003c\/li\u003e\n\u003cli\u003eConnect charger briefly to wake up BMS\u003c\/li\u003e\n\u003cli\u003eTest with low-current load first\u003c\/li\u003e\n\u003cli\u003eMonitor for any unusual heat or behavior\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStep 7: Final Assembly\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInsulate all exposed connections with heat shrink tubing\u003c\/li\u003e\n\u003cli\u003eSecure BMS board inside battery pack enclosure\u003c\/li\u003e\n\u003cli\u003eEnsure BMS does not touch battery cells directly\u003c\/li\u003e\n\u003cli\u003eUse foam or insulation material if needed\u003c\/li\u003e\n\u003cli\u003eLeave some ventilation space\u003c\/li\u003e\n\u003cli\u003eLabel positive and negative terminals clearly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Installation Precautions \u0026amp; Safety Guidelines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ CRITICAL SAFETY WARNINGS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ \u003cstrong\u003eNEVER connect BMS to wrong voltage configuration\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT use 1S BMS on 2S\/3S batteries (will damage BMS and batteries)\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT exceed rated current capacity\u003c\/li\u003e\n\u003cli\u003e❌ Do NOT reverse polarity (will destroy BMS immediately)\u003c\/li\u003e\n\u003cli\u003e✅ Verify BMS configuration matches your battery pack\u003c\/li\u003e\n\u003cli\u003e✅ Use correct wire gauge for current rating\u003c\/li\u003e\n\u003cli\u003e✅ Ensure all cells are balanced before installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDuring Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ Never work on live circuits\u003c\/li\u003e\n\u003cli\u003e❌ Do not short circuit battery terminals\u003c\/li\u003e\n\u003cli\u003e❌ Avoid touching both terminals simultaneously\u003c\/li\u003e\n\u003cli\u003e✅ Work methodically, one connection at a time\u003c\/li\u003e\n\u003cli\u003e✅ Use proper soldering technique\u003c\/li\u003e\n\u003cli\u003e✅ Insulate each connection immediately after soldering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Best Practices:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse stranded copper wire for flexibility\u003c\/li\u003e\n\u003cli\u003eTin wire ends before soldering to BMS pads\u003c\/li\u003e\n\u003cli\u003eApply heat shrink tubing BEFORE soldering\u003c\/li\u003e\n\u003cli\u003eKeep wire lengths as short as practical\u003c\/li\u003e\n\u003cli\u003eRoute wires neatly to avoid pinching or damage\u003c\/li\u003e\n\u003cli\u003eUse different colored wires for positive and negative\u003c\/li\u003e\n\u003cli\u003eLabel all connections clearly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Installation Mistakes to Avoid:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e❌ Reversed polarity on balance wires\u003c\/li\u003e\n\u003cli\u003e❌ Using wire gauge too small for current\u003c\/li\u003e\n\u003cli\u003e❌ Skipping balance wire connections on 2S\/3S\u003c\/li\u003e\n\u003cli\u003e❌ Not insulating solder joints properly\u003c\/li\u003e\n\u003cli\u003e❌ Mounting BMS directly against battery cells\u003c\/li\u003e\n\u003cli\u003e❌ Forgetting to test before final assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo output voltage:\u003c\/strong\u003e BMS in protection mode, connect charger briefly to reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS keeps shutting off:\u003c\/strong\u003e Check for overcurrent, verify load is within rating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWon't charge:\u003c\/strong\u003e Check balance wire connections, verify charger voltage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS getting hot:\u003c\/strong\u003e Current may exceed rating, check wire gauge, verify no short circuit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Use a BMS\/PCM?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEssential Protection:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrevents overcharging (extends battery life)\u003c\/li\u003e\n\u003cli\u003ePrevents over-discharge (protects cells from damage)\u003c\/li\u003e\n\u003cli\u003eProtects against short circuits and overcurrent\u003c\/li\u003e\n\u003cli\u003eBalances cells during charging (2S\/3S)\u003c\/li\u003e\n\u003cli\u003eRequired for safe LiFePO4 battery operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSafety Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrevents thermal runaway\u003c\/li\u003e\n\u003cli\u003eProtects your devices from battery failure\u003c\/li\u003e\n\u003cli\u003eExtends battery pack lifespan significantly\u003c\/li\u003e\n\u003cli\u003eProvides peace of mind for DIY projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCommon Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY Battery Packs:\u003c\/strong\u003e Custom LiFePO4 battery assemblies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Systems:\u003c\/strong\u003e Solar battery banks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Vehicles:\u003c\/strong\u003e E-bikes, scooters, small EVs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Tools:\u003c\/strong\u003e Cordless tool battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable Power:\u003c\/strong\u003e Power banks, portable generators\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPS Systems:\u003c\/strong\u003e Backup power applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine \u0026amp; RV:\u003c\/strong\u003e House battery systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWarranty \u0026amp; Support\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWe stand behind the quality of our BMS boards. If you experience any issues, please contact us for support. Always follow installation instructions carefully and verify all connections before applying power. Improper installation may void warranty.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"3.2V 3A 26mm","offer_id":46447914451133,"sku":"FPME01S030R095","price":6.9,"currency_code":"USD","in_stock":true},{"title":"3.2V 10A 7.4x36mm","offer_id":46447914483901,"sku":"FPME01S100F444","price":7.5,"currency_code":"USD","in_stock":true},{"title":"6.4V 7A 15x30mm","offer_id":46447914516669,"sku":"FPME02S070D14","price":7.5,"currency_code":"USD","in_stock":true},{"title":"6.4V 12A 21x45mm","offer_id":46447914549437,"sku":"FPME02S100W003","price":9.26,"currency_code":"USD","in_stock":true},{"title":"9.6V 2A 10x30mm","offer_id":46447914582205,"sku":"FPME03S020W001","price":8.44,"currency_code":"USD","in_stock":true},{"title":"9.6V 8A 22x50mm","offer_id":46447914614973,"sku":"FPME03S080W003","price":11.53,"currency_code":"USD","in_stock":true},{"title":"9.6V 16A 31x62mm","offer_id":46447914647741,"sku":"FPME03S160W006","price":12.95,"currency_code":"USD","in_stock":true},{"title":"9.6V 20A 34x60mm","offer_id":46447914680509,"sku":"FPME03S200W007","price":13.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/57_a0cf5f62-4c0c-4bb6-a6f4-ea5365d0ca6b.jpg?v=1772513076"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/collections\/protection-boards-category-icon.png?v=1769591624","url":"https:\/\/fmabattery.com\/collections\/pcm-bms.oembed","provider":"fmabattery","version":"1.0","type":"link"}