{"product_id":"jkbms-smart-bms-8s-20s-40a-0-4a-active-balance-built-in-bluetooth-with-rs485-pcb-battery-protection-board-li-ion-lifepo4-lto-lithium-battery-pack-jk-bd4a20s4p","title":"JKBMS JK-BD4A20S4P | 40A BMS for E-Scooter \u0026 60V Backup Power | 8S-20S LiFePO4 Li-ion | 0.4A Active Balance + Bluetooth + UART","description":"\u003ch2\u003eLight Load at 60V — JKBMS JK-BD4A20S4P 40A Smart BMS for 8S–20S\u003c\/h2\u003e\n\n\u003cp\u003eThe JK-BD4A20S4P covers the 8S–20S voltage range (24V–60V) at 40A continuous current — designed for electric scooters, light e-bikes, and small backup power systems running at 48V–60V. Bluetooth and UART for LCD display monitoring are built in; RS485 and CAN are available as optional add-ons.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatible chemistries: LiFePO4 \/ Li-ion \/ LTO\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eJK-BD4A20S4P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell Configuration\u003c\/td\u003e\n\u003ctd\u003e8S – 20S (24V – 60V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous Current\u003c\/td\u003e\n\u003ctd\u003e40A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActive Balance Current\u003c\/td\u003e\n\u003ctd\u003e0.4A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Communication\u003c\/td\u003e\n\u003ctd\u003eBluetooth + UART (LCD display port)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Add-ons\u003c\/td\u003e\n\u003ctd\u003eRS485 \/ CAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Chemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4, Li-ion, LTO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eOver-charge, Over-discharge, Over-current, Short-circuit, Over\/Under-temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eVoltage Platform \u0026amp; Load Class — Where This BMS Fits\u003c\/h2\u003e\n\n\u003ch3\u003e📊 8S–20S (24V–60V) — Light Load Applications\u003c\/h3\u003e\n\u003cp\u003eThe 8S–20S platform covers electric scooters and light e-bikes (48V–60V) in the light-load category. At 40A, this BMS is sized for commuter and recreational applications — reliable protection and active balancing for everyday use without the overhead of high-current designs.\u003c\/p\u003e\n\n\u003ch3\u003e⚡ 0.4A Active Balancing — Cell Health for Every Cycle\u003c\/h3\u003e\n\u003cp\u003eActive balancing continuously transfers energy between cells, keeping your pack balanced and efficient through every charge\/discharge cycle.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWho Is This BMS For?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e🛴 \u003cstrong\u003eElectric scooters\u003c\/strong\u003e (48V–60V, light load)\u003c\/li\u003e\n\u003cli\u003e🚲 \u003cstrong\u003eLight e-bikes\u003c\/strong\u003e running at higher voltages\u003c\/li\u003e\n\u003cli\u003e🔋 \u003cstrong\u003eSmall backup power systems\u003c\/strong\u003e (24V–60V)\u003c\/li\u003e\n\u003cli\u003e🏭 \u003cstrong\u003eOEM manufacturers\u003c\/strong\u003e of 24V–60V 40A compact lithium battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eCustom Configuration Available\u003c\/h2\u003e\n\u003cp\u003eAll JKBMS products support feature customization for OEM orders — including communication interfaces, protection thresholds, balance parameters, and hardware configuration. \u003cstrong\u003e📩 \u003ca href=\"\/en-eu\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss your custom requirements.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eOEM \/ ODM \u0026amp; Bulk Orders\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e📩 For wholesale pricing, MOQ, and custom configurations, please \u003ca href=\"\/en-eu\/pages\/contact\"\u003econtact us\u003c\/a\u003e directly.\u003c\/strong\u003e\u003c\/p\u003e","brand":"JKBMS","offers":[{"title":"JK-BD4A20S4P","offer_id":47769218973834,"sku":"JK-BD4A20S4P","price":52.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/0591\/1434\/files\/BD4A20S4P_f46b7dd8-62ad-413a-abac-32a4a6a30f81.jpg?v=1775496330","url":"https:\/\/jkbms-ess.com\/en-eu\/products\/jkbms-smart-bms-8s-20s-40a-0-4a-active-balance-built-in-bluetooth-with-rs485-pcb-battery-protection-board-li-ion-lifepo4-lto-lithium-battery-pack-jk-bd4a20s4p","provider":"JKBMS-ESS","version":"1.0","type":"link"}