{"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","url":"https:\/\/fmabattery.com\/products\/li-fe-battery-3-2v-6-4v-9-6v-protection-circuit-management-board-lifepo4-pcm-bms","provider":"fmabattery","version":"1.0","type":"link"}