{"title":"21700 Battery Cells","description":"\u003ch2\u003e21700 Lithium-Ion Battery Cells\u003c\/h2\u003e\n\u003cp\u003eBrowse authentic 21700 cells for high-current packs, long-runtime projects, e-bikes, RC aircraft, tools, energy storage, and custom battery builds. The current DIY500AMP selection includes models from EVE, Ampace, Reliance, Tenpower, Samsung, BAK, Amprius, LinkData, and LG.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose by application:\u003c\/strong\u003e power cells prioritize current delivery, energy cells prioritize capacity, and hybrid designs balance both. Confirm rated capacity, manufacturer maximum continuous current, charge limits, temperature conditions, and parallel current sharing before building.\u003c\/p\u003e\n\u003cp\u003eSearching for Molicel? DIY500AMP does not currently sell Molicel cells, but our \u003ca href=\"\/collections\/molicel-21700-collection\"\u003e21700 Molicel alternatives\u003c\/a\u003e collection highlights available options selected by comparable build goals.\u003c\/p\u003e\n\u003cp\u003eFor deeper comparisons, manufacturer data sheets, and independent testing performed within published limits, visit \u003ca href=\"https:\/\/batteryrealdata.com\/cells\/\"\u003eBatteryRealData.com\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSafety:\u003c\/strong\u003e These are unprotected lithium-ion cells intended for properly designed battery packs. Use a correctly rated BMS, insulation, fusing, suitable conductors, current sharing, and thermal management. Never exceed the manufacturer data-sheet limits.\u003c\/p\u003e\n\u003cp\u003eShips from Florida with practical support for serious battery builders.\u003c\/p\u003e","products":[{"product_id":"eve-50e-21700-5000mah-15a-battery","title":"EVE 50E 21700 5000mAh 15A Battery","description":"","brand":"EVE","offers":[{"title":"Default Title","offer_id":41239688118343,"sku":"EVE-50E-21700-B1","price":3.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0588\/8055\/7127\/files\/eve-50e-21700-5000mah-15a-battery-product-image.jpg?v=1784287241"},{"product_id":"ampace-jp40-cells","title":"Ampace JP40 21700 4000mah 70A Battery - Tabless Cell","description":"","brand":"Ampace","offers":[{"title":"Default Title","offer_id":41237327347783,"sku":"AMP-JP40-21700-B1","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0588\/8055\/7127\/files\/ampace-21700-a4n21-4000mah-lithium-ion-battery-cell-upright-and-side-view.webp?v=1774985902"},{"product_id":"samsung-50e-21700","title":"Samsung 50E 21700","description":"","brand":"Samsung","offers":[{"title":"Default Title","offer_id":41239659085895,"sku":"SAM-50E-21700-B1","price":3.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0588\/8055\/7127\/files\/samsung-50e-21700-product-image.png?v=1784287265"},{"product_id":"samsung-50s","title":"Samsung 50S 21700 5000mAh 25A Battery","description":"","brand":"Samsung","offers":[{"title":"Default Title","offer_id":41242437976135,"sku":"SAM-50S-21700-B1","price":5.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0588\/8055\/7127\/files\/samsung-50s-21700-lithium-cell.jpg?v=1734613970"},{"product_id":"eve-40pl","title":"EVE 40PL 21700 4000mAh 70A Battery - 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