{"title":"BTCAP 21700 Batteries","description":"\u003cp\u003eBTCAP 21700 batteries are lithium-ion rechargeable cells designed for use in battery packs, portable devices, and other compatible equipment. These batteries are used in a variety of applications requiring consistent power and dependable performance.\u003c\/p\u003e\n\n\u003cp\u003eThe 21700 format offers increased capacity and improved efficiency compared to smaller battery sizes, making these cells suitable for modern battery systems and general-purpose use.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cp\u003e\n✔ Lithium-Ion Chemistry – Rechargeable cells with stable voltage output\u003cbr\u003e\n✔ Consistent Performance – Designed for reliable energy delivery\u003cbr\u003e\n✔ 21700 Format – Increased capacity compared to smaller battery sizes\u003cbr\u003e\n✔ Versatile Use – Suitable for a range of compatible applications\n\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cp\u003e\n✔ Battery Pack Assembly – Used in lithium-ion pack builds and integrations\u003cbr\u003e\n✔ Portable Equipment – Suitable for battery-powered devices\u003cbr\u003e\n✔ Replacement Batteries – Used in compatible systems requiring 21700 cells\u003cbr\u003e\n✔ General Use – Ideal for everyday applications\n\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eBTCAP batteries may vary in specifications depending on the model. Always verify compatibility with your device, including size, discharge requirements, and supported battery types.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Note\u003c\/h3\u003e\n\u003cp\u003eBattery specifications can vary by model. Always review product details to ensure the battery meets your application requirements.\u003c\/p\u003e\n\n\u003cp\u003eBrowse our selection of BTCAP 21700 batteries to find cells suited for your application.\u003c\/p\u003e","products":[{"product_id":"btcap-42p-21700-4200mah-70a-battery","title":"BTCAP 42P 21700 4200mAh 45A Battery","description":"\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Load Performance:\u003c\/strong\u003e Sustains up to 45A continuous discharge with minimal voltage sag.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4200mAh Capacity:\u003c\/strong\u003e Efficient energy storage for extended runtimes in demanding systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNMC Chemistry:\u003c\/strong\u003e Stable LiNiMnCoO\u003csub\u003e2\u003c\/sub\u003e formulation ensures heat resistance and durability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Resistance Architecture:\u003c\/strong\u003e Internal resistance ≤8mΩ supports high current throughput.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e500 Cycle Life:\u003c\/strong\u003e Maintains dependable output across hundreds of charge cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cp\u003e\n  The BTCAP 42P is a robust, unprotected 21700 cell engineered for high-power delivery in lithium-ion battery packs. Its 45A continuous discharge rating and 4200mAh capacity make it well-suited for builds that demand both endurance and instantaneous output. Built with NMC chemistry, it combines thermal stability with impressive power handling—essential for power tool packs, e-mobility, and robotics.\n\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch4\u003eApplications\/Uses\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobotics Systems:\u003c\/strong\u003e Ideal for builds requiring sustained current with minimal degradation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Performance Tools:\u003c\/strong\u003e Maintains energy efficiency during peak-load operations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRC \u0026amp; Hobbyist Builds:\u003c\/strong\u003e Perfect for electric toys and drones needing long runtimes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEV Battery Modules:\u003c\/strong\u003e Integrates into battery arrays where discharge stability is critical.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustom DIY Packs:\u003c\/strong\u003e Great for creators needing reliable, high-drain 21700 cells.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch4\u003eSPECIFICATIONS\u003c\/h4\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\n  \u003ctable\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eManufacturer:\u003c\/td\u003e\n\u003ctd\u003eBTCAP\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eModel:\u003c\/td\u003e\n\u003ctd\u003e42P\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSize:\u003c\/td\u003e\n\u003ctd\u003e21700\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePositive Terminal:\u003c\/td\u003e\n\u003ctd\u003eFlat Top\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eNominal Capacity:\u003c\/td\u003e\n\u003ctd\u003e4200mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eContinuous Discharge Rating:\u003c\/td\u003e\n\u003ctd\u003e45A\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eNominal Voltage:\u003c\/td\u003e\n\u003ctd\u003e3.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaximum Voltage:\u003c\/td\u003e\n\u003ctd\u003e4.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDischarge Cut-Off Voltage:\u003c\/td\u003e\n\u003ctd\u003e2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eProtected:\u003c\/td\u003e\n\u003ctd\u003eNo, Unprotected\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eRechargeable:\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eApprox. Dimensions:\u003c\/td\u003e\n\u003ctd\u003e21.6mm x 70.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eApprox. Weight:\u003c\/td\u003e\n\u003ctd\u003e68g\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n","brand":"BTCAP","offers":[{"title":"Default Title","offer_id":44589090144313,"sku":"BTCAP-42P","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/BTCAP-42P.jpg?v=1749594211"}],"url":"https:\/\/imrbatteries.com\/collections\/btcap-21700-batteries.oembed","provider":"IMR Batteries","version":"1.0","type":"link"}