{"product_id":"src-jk-2717-jkbms-b1a8s20p-3s-8s-active-balance-bms-balance-current-1a-continuous-current-200a-lifepo4-li-ion-lto-battery","title":"JKBMS B1A8S20P Active Balance Smart BMS 3S-8S, 1A Balancer, 200A, Bluetooth, RS485 for LiFePO4\/Li-ion\/LTO","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe \u003ca href=\"https:\/\/tsolar.top\/collections\/jkbms-jikong-bms\" title=\"JKBMS - JIKONG BMS\"\u003eJKBMS\u003c\/a\u003e B1A8S20P is an active balance \u003ca href=\"https:\/\/tsolar.top\/collections\/smart-bms\" title=\"Smart BMS\"\u003esmart BMS\u003c\/a\u003e (Battery Management System) for LiFePO4, Li-ion, and LTO battery packs. It supports 3S–8S pack configurations (chemistry-dependent) with 1A active balancing and 200A continuous charge\/discharge capability, plus built-in Bluetooth monitoring for Android\/iOS.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive balancing:\u003c\/strong\u003e Active Balance (Full State On), balance current 1000mA (1A).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh current capability:\u003c\/strong\u003e Continuous charge current 200A; continuous discharge current 200A; maximum discharge current 350A (MAX 2min).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported battery strings (by chemistry):\u003c\/strong\u003e Li-ion 3S–8S; LiFePO4 4S–8S; LTO 6S–8S.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Bluetooth:\u003c\/strong\u003e Supports Android \/ iOS phone. Use the specified Bluetooth application to activate the BMS; search the relevant serial number to view data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunications:\u003c\/strong\u003e RS485 (default). CANBUS\/HEAT (customized).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtections supported:\u003c\/strong\u003e over-charge protection, over-discharge protection, over-current protection, short circuit protection, over-temperature protection, and all-in protection (cable drop\/poor contact).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating modes:\u003c\/strong\u003e Storage Mode, Normal Working Mode, Shutdown, Standby Mode (standby set time: 1–30 days can be set).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eModel\u003c\/th\u003e\n\u003ctd\u003eJKBMS B1A8S20P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eBalance method\u003c\/th\u003e\n\u003ctd\u003eActive Balance (Full State On)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eBalance current\u003c\/th\u003e\n\u003ctd\u003e1A (1000mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eNumber of battery strings (Li-ion)\u003c\/th\u003e\n\u003ctd\u003e3S–8S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eNumber of battery strings (LiFePO4)\u003c\/th\u003e\n\u003ctd\u003e4S–8S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eNumber of battery strings (LTO)\u003c\/th\u003e\n\u003ctd\u003e6S–8S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eWiring output \/ wiring method\u003c\/th\u003e\n\u003ctd\u003eCommon port (same port)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003ePower supply mode\u003c\/th\u003e\n\u003ctd\u003eThe battery pack is self-powered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eContinuous charge current\u003c\/th\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eContinuous discharge current\u003c\/th\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eMaximum discharge current\u003c\/th\u003e\n\u003ctd\u003e350A (MAX 2min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eOver charge protection current (ADJ)\u003c\/th\u003e\n\u003ctd\u003e10–200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eCurrent sense shunt\u003c\/th\u003e\n\u003ctd\u003e-150A to 300A, error \u0026lt; 0.5% FSR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eTotal voltage detection range\u003c\/th\u003e\n\u003ctd\u003e0–100V, \u0026lt; 0.5% FSR (FSR = full scale)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eSingle cell voltage detection range\u003c\/th\u003e\n\u003ctd\u003e0–5V, error \u0026lt; 10mV over full operating range; typical error \u0026lt; 5mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eSingle cell voltage range\u003c\/th\u003e\n\u003ctd\u003e1–5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eVoltage acquisition accuracy\u003c\/th\u003e\n\u003ctd\u003e±5mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eSupport single cell voltage dropout detection\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eOver charge protection voltage\u003c\/th\u003e\n\u003ctd\u003e1.2–4.35V adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eOver charge release voltage\u003c\/th\u003e\n\u003ctd\u003e1.2–4.35V adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eOver discharge protection voltage\u003c\/th\u003e\n\u003ctd\u003e1.2–4.35V adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eOver discharge release voltage\u003c\/th\u003e\n\u003ctd\u003e1.2–4.35V adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eOver current detect delay\u003c\/th\u003e\n\u003ctd\u003e2–120S adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eConductive resistance in main circuit\u003c\/th\u003e\n\u003ctd\u003e0.47mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eTemperature detection range\u003c\/th\u003e\n\u003ctd\u003e-40 to 125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eQuantity of temperature detection\u003c\/th\u003e\n\u003ctd\u003e3Pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eTemp protection\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eShort circuit protection\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eCoulomb counter\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eSoC estimation accuracy\u003c\/th\u003e\n\u003ctd\u003eError \u0026lt; 8% (operating conditions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eBattery remaining capacity accuracy\u003c\/th\u003e\n\u003ctd\u003eError range \u0026lt; 8%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eTotal Cycle AH cumulative value\u003c\/th\u003e\n\u003ctd\u003eHalf of the charge\/discharge value\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eOperating power consumption\u003c\/th\u003e\n\u003ctd\u003e\u0026lt; 5mA (without communication) \/ 15mA (485\/CAN)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eStandby power consumption\u003c\/th\u003e\n\u003ctd\u003e\u0026lt; 2mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eOperating temperature\u003c\/th\u003e\n\u003ctd\u003e-40 to 85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eStoring temperature\u003c\/th\u003e\n\u003ctd\u003e-40 to 95°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eOther interfaces (default)\u003c\/th\u003e\n\u003ctd\u003eRS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eOther interfaces (customized)\u003c\/th\u003e\n\u003ctd\u003eCANBUS\/HEAT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eSize\u003c\/th\u003e\n\u003ctd\u003e153*136*18mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eInterface Notes (as labeled)\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCANBUS (need customization):\u003c\/strong\u003e GND, CAN_H, CAN_L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRS485 (by default):\u003c\/strong\u003e GND, RX, TX, VCC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLCD (by default):\u003c\/strong\u003e K-, K+, GND, B, A, VCC\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeat function (need customization)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLiFePO4 battery packs: 4S–8S\u003c\/li\u003e\n\u003cli\u003eLi-ion battery packs: 3S–8S\u003c\/li\u003e\n\u003cli\u003eLTO battery packs: 6S–8S\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor pre-sales selection and post-sales technical support, contact \u003ca href=\"https:\/\/tsolar.top\/\"\u003ehttps:\/\/tsolar.top\/\u003c\/a\u003e or email \u003ca href=\"mailto:service@tsolar.top\"\u003eservice@tsolar.top\u003c\/a\u003e.\u003c\/p\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"JKBMS smart active balance BMS, model JK-BD6A17S6P with 0.6A balancing and 60A continuous current\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B1A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-1A.jpg?v=1780109302\"\u003e\u003cp\u003eGet active balancing with a smart BMS platform designed for multi‑string lithium battery packs.\u003c\/p\u003e\n\u003cimg alt=\"JKBMS JK-B2A20S20P-H-C smart active balance BMS with 2A balancing and 200A continuous charge\/discharge\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B1A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-1A_d44bb83f-f478-4db5-bce1-1e69d2a2697f.jpg?v=1780109311\"\u003e\u003cp\u003eHigher-current configurations are available for builds that need up to 200A continuous charge\/discharge capability.\u003c\/p\u003e\n\u003cimg alt=\"Exploded internal view of the smart BMS enclosure showing circuit board, components, and main power bus connection\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B1A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-1A.png?v=1780109321\"\u003e\u003cp\u003eA compact enclosure integrates the control board, balancing circuitry, and high-current power path in one unit.\u003c\/p\u003e\n\u003cimg alt=\"BMS port layout close-up with labeled connectors for CAN\/RS485, GPS, LCD, and heating function (custom)\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B1A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-1A_bb4e7896-9d5f-402e-a275-6c3b9d4f07c4.jpg?v=1780109328\"\u003e\u003cp\u003eRS485 is the default communication option, with CANBUS and heating function available as custom connections.\u003c\/p\u003e\n\u003cimg alt=\"Bluetooth BMS mobile app screen displaying pack voltage, current, balance status, and per-cell voltages\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B1A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-1A_11dd3e3f-80fe-46d2-811b-7c6e822f5224.jpg?v=1780109334\"\u003e\u003cp\u003eBuilt-in Bluetooth support lets you monitor pack status and cell-level voltage data from an Android or iOS phone.\u003c\/p\u003e\n\u003cimg alt=\"Multiple app screenshots showing device scan list, chemistry selection (Li-ion\/LiFePO4\/LTO), and live status page\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B1A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-1A_e1f13995-d85d-4d82-a0d3-2ca4e2efa452.jpg?v=1780109341\"\u003e\u003cp\u003eQuick setup includes scanning for the device, selecting battery chemistry, and viewing live operating data.\u003c\/p\u003e\n\u003cimg alt=\"Safety protection infographic listing overcharge, overdischarge, short circuit, overcurrent, all-in, and over-temp\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B1A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-1A_394bd2c5-a70f-4fef-adf4-41bc4b145a26.jpg?v=1780109350\"\u003e\u003cp\u003eComprehensive protections help guard against over-charge\/discharge, over-current, short-circuit, and over-temperature events.\u003c\/p\u003e\n\u003cimg alt=\"Working mode switching chart for BMS: Storage Mode, Normal Working Mode, Standby Mode, and Shutdown\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B1A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-1A_7326b464-5586-4735-ab82-a63ee257cf92.jpg?v=1780109357\"\u003e\u003cp\u003eOperating modes support long-term storage, normal use, automatic standby after a set time, and shutdown behavior.\u003c\/p\u003e\n\u003cimg alt=\"Specification comparison table for multiple JKBMS models with supported strings, balance current, and interfaces\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B1A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-1A_7d6ff9b1-0d74-4de5-a0e4-d1a3c6fee4a2.jpg?v=1780109366\"\u003e\u003cp\u003eUse the model comparison table to confirm string count support, balancing current, and interface options before ordering.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JIKONG","offers":[{"title":"Default Title","offer_id":52312084250898,"sku":"jk-2717-","price":81.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0863\/2860\/6994\/files\/JKBMS-3S-8S-12V-24V-Heating-CANBUS-Active-Balance-BMS-Balance-Current-1A-2A-Continuous-Current-100A-200A-Lifepo4-li-ion-LTO-Battery-7.jpg?v=1780059223","url":"https:\/\/tsolar.top\/products\/src-jk-2717-jkbms-b1a8s20p-3s-8s-active-balance-bms-balance-current-1a-continuous-current-200a-lifepo4-li-ion-lto-battery","provider":"TSolar","version":"1.0","type":"link"}