{"product_id":"bms-3s-20a-li-ion-battery-management-system","title":"BMS 3S 20A Li-Ion Battery Management System","description":"\u003cp\u003eThe \u003cstrong\u003eBMS 3S 20A\u003c\/strong\u003e is a Battery Management System board designed for 3-cell series lithium-ion or LiPo battery packs (11.1V nominal). It provides overcharge, over-discharge, overcurrent, and short circuit protection to ensure safe operation of your battery pack.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Configuration:\u003c\/strong\u003e 3S (3 cells in series)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 11.1V (3 × 3.7V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Charge Voltage:\u003c\/strong\u003e 12.6V (3 × 4.2V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Discharge Current:\u003c\/strong\u003e 20A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak Current:\u003c\/strong\u003e 40A (short duration)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvercharge Protection:\u003c\/strong\u003e 4.25V ± 0.05V per cell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver-discharge Protection:\u003c\/strong\u003e 2.5V ± 0.1V per cell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort Circuit Protection:\u003c\/strong\u003e Yes (auto-recovery)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalance Function:\u003c\/strong\u003e Passive balancing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 50 × 20 mm (approx.)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~8 g\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eApplications\u003c\/h4\u003e\u003cp\u003eDIY 11.1V battery packs, e-bikes, RC vehicles, power tools, solar energy storage, robotics.\u003c\/p\u003e","brand":"Tecwizdom.com","offers":[{"title":"Default Title","offer_id":47821333266486,"sku":null,"price":41.3,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9335\/5062\/files\/BMS3S20ALi-IonBatteryManagementSystem.webp?v=1790083365","url":"https:\/\/tecwizdom.com\/products\/bms-3s-20a-li-ion-battery-management-system","provider":"Tecwizdom.com","version":"1.0","type":"link"}