{"product_id":"2s-8-4v-20a-bms-balance","title":"2S 8.4V 20A BMS Board w\/ Balance","description":"\u003cdiv\u003e\n\u003ch2\u003e2S 8.4V 20A Lithium Battery BMS Protection Board with Balance\u003c\/h2\u003e\n\u003cp\u003eThis 2S 20A BMS (Battery Management System) board provides reliable protection for building or repairing lithium-ion battery packs. Designed for \u003cstrong\u003e2-cell (2S) packs\u003c\/strong\u003e with a nominal voltage of 7.4V and fully charged at 8.4V, it includes \u003cstrong\u003ebalanced charging\u003c\/strong\u003e for safer, longer-lasting performance.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eContinuous charge current: up to 10A\u003c\/li\u003e\n\u003cli\u003eMaximum discharge current: 20A\u003c\/li\u003e\n\u003cli\u003eBalanced charging function included\u003c\/li\u003e\n\u003cli\u003eProtection against overcharge, over-discharge, overcurrent, and short circuits\u003c\/li\u003e\n\u003cli\u003eCompact and lightweight design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWorks with lithium-ion cells such as \u003cstrong\u003e18650, 26650, and polymer lithium batteries\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupports resistive loads up to \u003cstrong\u003e168W\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRecommended for applications under \u003cstrong\u003e25A starting current\u003c\/strong\u003e (e.g., small power tools, drills, LED packs, DIY projects)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: 2S (2-cell) lithium battery BMS\u003c\/li\u003e\n\u003cli\u003eNominal voltage: 7.4V\u003c\/li\u003e\n\u003cli\u003eFull charge voltage: 8.4V\u003c\/li\u003e\n\u003cli\u003eCharge current: 10A max\u003c\/li\u003e\n\u003cli\u003eDischarge current: 20A max\u003c\/li\u003e\n\u003cli\u003eBalance charging: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e—  \u003cbr\u003eDownload “RenewSpark Tools” on the iOS App Store — the toolbox I use for battery building.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"RenewSpark","offers":[{"title":"Default Title","offer_id":47180111151331,"sku":"BM101","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/7594\/8771\/files\/2S20A7.4VBMS.webp?v=1756259936","url":"https:\/\/renewspark.com\/products\/2s-8-4v-20a-bms-balance","provider":"RenewSpark","version":"1.0","type":"link"}