{"product_id":"makita-18v-lxt-12ah-15-cell-21700-battery-rebuild-kit","title":"Makita 18V LXT 12Ah Battery Rebuild Kit – 15-Cell 21700 BMS, Shell \u0026 Hardware – No Cells","description":"\u003ch2\u003eMakita 18V LXT 12Ah Battery Rebuild Kit – 15-Cell 21700\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eRebuild or assemble a Makita 18V LXT compatible high-capacity battery pack using fifteen 21700 lithium-ion cells.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis complete DIY battery rebuild kit includes the battery housing, circuit board, cell holders, conductive plates, battery-level indicator, hardware, and internal components shown in the product photos.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBattery cells are not included.\u003c\/strong\u003e This kit is intended for experienced battery builders who will supply, test, match, install, and spot-weld their own 21700 lithium-ion cells.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible with Makita 18V LXT tools and compatible chargers\u003c\/li\u003e\n  \u003cli\u003eDesigned for fifteen 21700 lithium-ion cells\u003c\/li\u003e\n  \u003cli\u003e15-cell, 5S3P battery configuration\u003c\/li\u003e\n  \u003cli\u003e12Ah-style high-capacity battery housing\u003c\/li\u003e\n  \u003cli\u003eIncludes battery management circuit board\u003c\/li\u003e\n  \u003cli\u003eIncludes upper and lower battery housing\u003c\/li\u003e\n  \u003cli\u003eIncludes molded 21700 cell holders\u003c\/li\u003e\n  \u003cli\u003eIncludes conductive metal plates and contacts\u003c\/li\u003e\n  \u003cli\u003eIncludes battery-level indicator components\u003c\/li\u003e\n  \u003cli\u003eIncludes screws and assembly hardware\u003c\/li\u003e\n  \u003cli\u003eBattery cells are not included\u003c\/li\u003e\n  \u003cli\u003eAssembly service is not included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBattery Capacity\u003c\/h3\u003e\n\n\u003cp\u003eThe finished capacity depends on the specifications of the 21700 cells selected by the builder. A 5S3P configuration using 4,000mAh cells can produce a nominal capacity of approximately 12Ah.\u003c\/p\u003e\n\n\u003cp\u003eActual capacity, output current, runtime, and performance depend on the cells used, the quality of the assembly, and the operating conditions.\u003c\/p\u003e\n\n\u003ch3\u003eWhat Is Included\u003c\/h3\u003e\n\n\u003cp\u003eThe kit includes the battery housing, BMS circuit board, 21700 cell holders, conductive metal plates, electrical contacts, battery-level indicator components, springs, screws, labels, and other parts shown in the product photos.\u003c\/p\u003e\n\n\u003cp\u003ePlease review all product photos carefully for the exact components included with this kit.\u003c\/p\u003e\n\n\u003ch3\u003eWhat Is Not Included\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e21700 lithium-ion cells\u003c\/li\u003e\n  \u003cli\u003eSpot welder\u003c\/li\u003e\n  \u003cli\u003eBattery charger\u003c\/li\u003e\n  \u003cli\u003ePower tool\u003c\/li\u003e\n  \u003cli\u003eBattery assembly service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAssembly Requirements\u003c\/h3\u003e\n\n\u003cp\u003eThis product is intended for experienced users familiar with lithium-ion battery construction, cell testing, cell matching, insulation, polarity, series and parallel connections, BMS wiring, and spot welding.\u003c\/p\u003e\n\n\u003cp\u003eThe buyer is responsible for selecting suitable high-drain 21700 cells with the correct voltage, capacity, discharge rating, chemistry, and specifications for the intended application.\u003c\/p\u003e\n\n\u003cp\u003eUse only properly tested and closely matched cells. Do not mix cells of different brands, models, capacities, ages, voltage levels, chemistry, or condition.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Safety Information\u003c\/h3\u003e\n\n\u003cp\u003eImproper lithium-ion battery assembly can cause fire, personal injury, equipment damage, or property damage. Proper tools, insulation, testing equipment, safety procedures, and battery-building experience are required.\u003c\/p\u003e\n\n\u003cp\u003eAlways verify cell orientation, polarity, wiring, insulation, pack voltage, and output voltage before connecting the completed battery pack to a tool or charger.\u003c\/p\u003e\n\n\u003ch3\u003eAdditional Parts and Resources\u003c\/h3\u003e\n\n\u003cp\u003eFor additional battery-building parts, 21700 cells, conductive materials, connectors, cell holders, and BMS boards, visit \u003cstrong\u003eRenewSpark\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eFor helpful battery tools, calculators, technical information, and additional resources, download the \u003cstrong\u003eRenewSpark Tools app\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMakita and LXT are trademarks of their respective owner. This compatible product is independently manufactured and is not produced, sponsored, or endorsed by Makita.\u003c\/strong\u003e\u003c\/p\u003e","brand":"RenewSpark","offers":[{"title":"Default Title","offer_id":49402365477091,"sku":"MAK-18V-21700-15C-RBK","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/7594\/8771\/files\/51388C40-264B-4786-AFC9-A7CDF6C7372E.jpg?v=1783993684","url":"https:\/\/renewspark.com\/products\/makita-18v-lxt-12ah-15-cell-21700-battery-rebuild-kit","provider":"RenewSpark","version":"1.0","type":"link"}