{"product_id":"lifepo4-battery-cells-rechargeable-calb-3-2v-100ah-genuine-grade-a-for-diy-24v-48v-solar-energy-storage-power-supply-rv-no-tax","title":"CALB LiFePO4 Battery Cells — Grade A Lithium Iron Phosphate Cells for DIY Battery Packs","description":"\u003ch2\u003eGrade A Cells. Build It Right.\u003c\/h2\u003e\u003cp\u003eCALB (China Aviation Lithium Battery) is one of the most respected LiFePO4 cell manufacturers in the world — their cells power electric vehicles, grid storage systems, and commercial energy applications globally. These Grade A CALB cells are the foundation of a serious DIY battery build: consistent capacity, low internal resistance, and the cycle life to justify the investment in a custom battery pack.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCALB Grade A cells\u003c\/strong\u003e — top-tier cells from a globally recognized manufacturer; consistent capacity and internal resistance across the batch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiFePO4 chemistry\u003c\/strong\u003e — Lithium Iron Phosphate; the safest lithium chemistry with no thermal runaway risk and 2000–5000+ cycle life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh capacity per cell\u003c\/strong\u003e — check variant for exact Ah rating per cell; common CALB sizes include 100Ah, 200Ah, and 280Ah\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow internal resistance\u003c\/strong\u003e — low IR means efficient energy transfer, less heat generation, and better performance under high current loads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrismatic format\u003c\/strong\u003e — flat prismatic cells are easy to stack and assemble into custom battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong cycle life\u003c\/strong\u003e — 2000–5000+ cycles to 80% capacity at standard discharge rates\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide temperature range\u003c\/strong\u003e — operates across a broad temperature range; check spec sheet for charging temperature limits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWho It’s For\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDIY battery builders constructing custom 12V, 24V, or 48V battery packs for solar, RV, or marine use\u003c\/li\u003e\n\u003cli\u003eEV conversion builders who need high-quality cells for electric vehicle battery packs\u003c\/li\u003e\n\u003cli\u003eOff-grid system builders who want to source cells directly and build their own battery bank\u003c\/li\u003e\n\u003cli\u003eEngineers and hobbyists who need Grade A cells for energy storage projects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eTest each cell’s capacity and internal resistance before assembly to verify Grade A specifications.\u003c\/li\u003e\n\u003cli\u003eTop-balance all cells to the same voltage (3.65V) before assembling into a pack.\u003c\/li\u003e\n\u003cli\u003eAssemble cells in series and\/or parallel to achieve your target voltage and capacity.\u003c\/li\u003e\n\u003cli\u003eConnect a compatible BMS (Battery Management System) to protect the pack.\u003c\/li\u003e\n\u003cli\u003eConnect to a LiFePO4-compatible charger and solar charge controller.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDo I need a BMS?\u003c\/strong\u003e\u003cbr\u003eYes — a BMS is required for safe operation of any lithium battery pack. The BMS protects individual cells from overcharge, over-discharge, and imbalance. Never operate a LiFePO4 pack without a properly rated BMS.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many cells do I need for a 12V 100Ah battery?\u003c\/strong\u003e\u003cbr\u003eA 12V LiFePO4 pack requires 4 cells in series (4S) at 3.2V nominal per cell = 12.8V nominal. For 100Ah capacity, use 100Ah cells. For 200Ah, use 200Ah cells or connect two 100Ah cells in parallel per series group.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre these new or refurbished cells?\u003c\/strong\u003e\u003cbr\u003eCheck the variant details for cell condition. Grade A new cells are the highest quality; Grade B cells may have minor cosmetic issues or slightly lower capacity but are still functional. Avoid ungraded or refurbished cells for critical applications.\u003c\/p\u003e","brand":"Authority Asset Brand","offers":[{"title":"16PCS-CALB100AH \/ 3V \/ China Mainland","offer_id":48361210478836,"sku":"14:691#16PCS-CALB100AH;200007763:201336100;557:3999","price":1299.99,"currency_code":"USD","in_stock":true},{"title":"8PCS-CALB100AH \/ 3V \/ China Mainland","offer_id":48361210511604,"sku":"14:496#8PCS-CALB100AH;200007763:201336100;557:3999","price":649.99,"currency_code":"USD","in_stock":true},{"title":"64PCS-CALB100AH \/ 3V \/ China Mainland","offer_id":48361210544372,"sku":"14:1052#64PCS-CALB100AH;200007763:201336100;557:3999","price":4999.99,"currency_code":"USD","in_stock":true},{"title":"32PCS-CALB100AH \/ 3V \/ China Mainland","offer_id":48361210577140,"sku":"14:771#32PCS-CALB100AH;200007763:201336100;557:3999","price":2699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/0564\/6836\/files\/S7243d1ab24a84a148b93bc8510d478d6W.webp?v=1780173871","url":"https:\/\/authorityassetbrand.com\/products\/lifepo4-battery-cells-rechargeable-calb-3-2v-100ah-genuine-grade-a-for-diy-24v-48v-solar-energy-storage-power-supply-rv-no-tax","provider":"Authority Asset Brand","version":"1.0","type":"link"}