{"product_id":"li-fe-rechargeable-26650-9-9v-3400mah-battery-pcm-bms-protected-cell-3s1p","title":"Li-Fe Rechargeable 26650 9.9v 3400mAh Battery PCM BMS Protected cell 3S1P","description":"\u003ch2\u003e\u003cstrong\u003e9.9V 3400mAh LiFePO4 Rechargeable Battery - 26650 Cell with BMS Protection\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional-grade 9.9V 3400mAh Lithium Iron Phosphate (LiFePO4) rechargeable battery pack using premium 26650 cylindrical cells in 3S1P configuration. Features built-in BMS\/PCM protection for safe operation and comes with Common T + DC5521 connector for easy installation. Perfect for portable devices, backup power, LED lights, and various 12V applications.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e26650 Cells:\u003c\/strong\u003e Large-capacity cylindrical cells (26mm diameter)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS\/PCM Protected:\u003c\/strong\u003e Built-in protection against overcharge, over-discharge, overcurrent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Capacity:\u003c\/strong\u003e 3400mAh for extended runtime\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiFePO4 Chemistry:\u003c\/strong\u003e Safest lithium battery type with excellent stability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Connector:\u003c\/strong\u003e Common T + DC5521 for versatile connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e 26mm × 79mm × 69mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Cycle Life:\u003c\/strong\u003e 2000+ charge cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× 9.9V 3400mAh LiFePO4 Battery Pack with Common T + DC5521 connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\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;\"\u003e9.9V (3S configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e3400mAh (3.4Ah)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eEnergy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e~33.66Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eChemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLiFePO4 (Lithium Iron Phosphate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCell Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e26650 Cylindrical\u003c\/td\u003e\n\u003c\/tr\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;\"\u003e3S1P (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\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e26mm × 79mm × 69mm\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~303g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConnector Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCommon T + DC5521 (5.5mm × 2.1mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBMS\/PCM (Battery Management System)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCharge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10.95V (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\u003eDischarge Cut-off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e7.5V (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\u003eCycle Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2000+ cycles\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\u003eBMS\/PCM Protection Features\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;\"\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;\"\u003ePrevents charging above 10.95V\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;\"\u003eCuts off at 7.5V to protect cells\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;\"\u003eLimits excessive current draw\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 cuts power if short detected\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;\"\u003eEnsures even charging across all cells\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\u003ePortable Devices:\u003c\/strong\u003e Handheld electronic equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Lights:\u003c\/strong\u003e Portable LED lighting systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackup Power:\u003c\/strong\u003e Emergency power backup\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Systems:\u003c\/strong\u003e Small solar power storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecurity Systems:\u003c\/strong\u003e Cameras and sensors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedical Devices:\u003c\/strong\u003e Portable medical equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY Projects:\u003c\/strong\u003e Custom electronics requiring 9-12V power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutdoor Equipment:\u003c\/strong\u003e Camping and field equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eWhy Choose 26650 LiFePO4 Cells?\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003e1. Large Capacity Cells:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e26650 cells are larger than 18650 (26mm vs 18mm diameter)\u003c\/li\u003e\n\u003cli\u003eHigher capacity per cell (3400mAh)\u003c\/li\u003e\n\u003cli\u003eBetter for high-drain applications\u003c\/li\u003e\n\u003cli\u003eMore stable voltage under load\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e2. Superior Safety:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLiFePO4 is the safest lithium chemistry\u003c\/li\u003e\n\u003cli\u003eExcellent thermal stability\u003c\/li\u003e\n\u003cli\u003eNo risk of thermal runaway\u003c\/li\u003e\n\u003cli\u003eBuilt-in BMS adds extra protection layer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e3. Long Lifespan:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2000+ charge cycles\u003c\/li\u003e\n\u003cli\u003e5-10 year lifespan with proper care\u003c\/li\u003e\n\u003cli\u003eMinimal capacity degradation\u003c\/li\u003e\n\u003cli\u003eBetter long-term value\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e4. Stable Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConsistent voltage throughout discharge\u003c\/li\u003e\n\u003cli\u003eGood performance in wide temperature range\u003c\/li\u003e\n\u003cli\u003eLow self-discharge rate (~3% per month)\u003c\/li\u003e\n\u003cli\u003eNo memory effect\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eConnector Information\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon T Connector:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStandard T-plug connector\u003c\/li\u003e\n\u003cli\u003eCommonly used in RC and hobby applications\u003c\/li\u003e\n\u003cli\u003eSecure connection with good current handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eDC5521 Connector:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5.5mm × 2.1mm barrel connector\u003c\/li\u003e\n\u003cli\u003eWidely used in LED lights and portable devices\u003c\/li\u003e\n\u003cli\u003eEasy to connect and disconnect\u003c\/li\u003e\n\u003cli\u003eCompatible with many standard DC power jacks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eℹ️ Need a Different Connector?\u003c\/strong\u003e Contact us with your requirements, and we can customize the connector type for you!\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eInstallation Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003e✅ Easy Plug-and-Play Installation\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStep 1: Choose the Right Connector\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse Common T for RC applications or high-current devices\u003c\/li\u003e\n\u003cli\u003eUse DC5521 for LED lights and standard DC devices\u003c\/li\u003e\n\u003cli\u003eVerify your device's connector type before connecting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eStep 2: Connect Battery\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMatch connector polarity (usually marked on device)\u003c\/li\u003e\n\u003cli\u003eInsert connector firmly until seated\u003c\/li\u003e\n\u003cli\u003eEnsure secure connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eStep 3: Test Operation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower on device\u003c\/li\u003e\n\u003cli\u003eVerify normal operation\u003c\/li\u003e\n\u003cli\u003eMonitor for any unusual behavior\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eStep 4: Charging\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse LiFePO4-compatible charger (10.95V for 3S)\u003c\/li\u003e\n\u003cli\u003eConnect charger to appropriate port\u003c\/li\u003e\n\u003cli\u003eCharge until BMS indicates full (typically 2-4 hours)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eCharging Information\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eCharger Requirements:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse LiFePO4-compatible charger (10.95V for 3S)\u003c\/li\u003e\n\u003cli\u003eDo NOT use standard 12V lead-acid chargers\u003c\/li\u003e\n\u003cli\u003eRecommended charge current: 1-2A\u003c\/li\u003e\n\u003cli\u003eCharging time: 2-4 hours (depending on charger)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eBMS Protection During Charging:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMS automatically stops charging at 10.95V\u003c\/li\u003e\n\u003cli\u003ePrevents overcharging damage\u003c\/li\u003e\n\u003cli\u003eBalances cells for optimal performance\u003c\/li\u003e\n\u003cli\u003eSafe to leave connected (BMS will protect)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eSafety Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCharging:\u003c\/strong\u003e Use only LiFePO4-compatible chargers (10.95V for 3S). BMS provides overcharge protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store at 40-60% charge in cool, dry place.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Do not short-circuit, puncture, crush, or disassemble the battery.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature:\u003c\/strong\u003e Charge: 0-45°C, Discharge: -20-60°C, Storage: -20-35°C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisposal:\u003c\/strong\u003e Dispose according to local regulations. LiFePO4 is non-toxic but should be recycled.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMS Protection:\u003c\/strong\u003e Built-in Battery Management System protects against overcharge, over-discharge, overcurrent, and short circuit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnector Care:\u003c\/strong\u003e Keep connectors clean and dry. Do not force connections.\u003c\/p\u003e\n\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 contains lithium batteries and is classified as dangerous goods for shipping purposes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Transport Restrictions:\u003c\/strong\u003e Due to international air transport regulations, battery 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 UN3480 or UN3481 packaging requirements for lithium batteries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time:\u003c\/strong\u003e Battery-containing parcels may experience extended delivery times due to stricter customs inspections and carrier handling procedures.\u003c\/p\u003e","brand":"fmabattery","offers":[{"title":"Common T+DC5521","offer_id":46440896921789,"sku":"FE3400-26P3S1PB","price":27.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/9133\/3821\/files\/10_38ca8844-b1ff-4d5a-b7f9-293f16067a4c.jpg?v=1772257028","url":"https:\/\/fmabattery.com\/products\/li-fe-rechargeable-26650-9-9v-3400mah-battery-pcm-bms-protected-cell-3s1p","provider":"fmabattery","version":"1.0","type":"link"}