{"title":"7S-17S BMS","description":"\u003cp\u003eJKBMS Smart BMS for 7S to 17S lithium battery packs (LiFePO4 \u0026amp; Li-ion). Ideal for mid-to-high voltage systems including solar storage, marine, and industrial applications.\u003c\/p\u003e","products":[{"product_id":"jkbms-smart-bms-8s-17s-40a-0-4a-active-balance-built-in-bluetooth-with-rs485-pcb-battery-protection-board-li-ion-lifepo4-lto-lithium-battery-pack-jk-bd4a17s4p","title":"JKBMS JK-BD4A17S4P | 40A Compact BMS 8S-17S | LiFePO4 Li-ion LTO | 0.4A Active Balance + Bluetooth + UART","description":"\u003ch2\u003eMid-Voltage Compact Protection — JKBMS JK-BD4A17S4P 40A Smart BMS for 8S–17S\u003c\/h2\u003e\n\n\u003cp\u003eThe JK-BD4A17S4P is a compact 40A BMS covering the 8S–17S voltage range (24V–51V) — designed for e-bike battery packs, light electric scooters, and small backup power systems in the light-load category. 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-BD4A17S4P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell Configuration\u003c\/td\u003e\n\u003ctd\u003e8S – 17S (24V – 51V)\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–17S (24V–51V) — Light Load, Mid-Voltage\u003c\/h3\u003e\n\u003cp\u003eThe 8S–17S range covers e-bike battery packs (36V–48V) and light electric scooters in the light-load category. At 40A, this BMS is sized for commuter and recreational applications — not high-draw motors or inverters, but reliable protection and active balancing for everyday cycling use.\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\u003eE-bike battery packs\u003c\/strong\u003e (36V–48V, light load)\u003c\/li\u003e\n\u003cli\u003e🛴 \u003cstrong\u003eLight electric scooters\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e🔋 \u003cstrong\u003eSmall backup power systems\u003c\/strong\u003e (24V–51V)\u003c\/li\u003e\n\u003cli\u003e🏭 \u003cstrong\u003eOEM manufacturers\u003c\/strong\u003e of 24V–51V 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-BD4A17S4P","offer_id":47769218908298,"sku":"JK-BD4A17S4P","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/0591\/1434\/files\/BD4A17S4P_849a55b8-4a95-4a45-9a06-f67953897a6e.jpg?v=1775496330"}],"url":"https:\/\/jkbms-ess.com\/en-eu\/collections\/7s-17s-bms.oembed","provider":"JKBMS-ESS","version":"1.0","type":"link"}