{"product_id":"src-jk-2718-jkbms-b2a8s20p-3s-8s-active-balance-bms-balance-current-2a-continuous-current-200a-lifepo4-li-ion-lto-battery","title":"JKBMS B2A8S20P 3S-8S 200A Active Balance BMS 2A Bluetooth RS485 for LiFePO4\/Li-ion\/LTO Packs","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe \u003ca href=\"https:\/\/tsolar.top\/collections\/jkbms-jikong-bms\" title=\"JKBMS - JIKONG BMS\"\u003eJKBMS\u003c\/a\u003e B2A8S20P is an active balance \u003ca href=\"https:\/\/tsolar.top\/collections\/battery-bms\" title=\"Battery BMS\"\u003eBMS\u003c\/a\u003e for building and managing LiFePO4, Li-ion, or LTO battery packs. It supports built-in Bluetooth (Android\/iOS) monitoring, RS485 communication (default), and active balancing at 2A to help equalize cell voltages during operation.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery string support\u003c\/strong\u003e:\n\u003cul\u003e\n\u003cli\u003eLi-ion: 3S-8S\u003c\/li\u003e\n\u003cli\u003eLiFePO4: 4S-8S\u003c\/li\u003e\n\u003cli\u003eLTO: 6S-8S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive balancing\u003c\/strong\u003e: Active Balance (Full State On), balance current 2000mA (2A).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous current\u003c\/strong\u003e: 200A continuous charge current; 200A continuous discharge current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak discharge\u003c\/strong\u003e: maximum discharge current 350A (MAX 2min).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply mode\u003c\/strong\u003e: battery pack self-powered.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth\u003c\/strong\u003e: built-in Bluetooth; supports Android \/ iOS phone. Download the specified Bluetooth application and activate the BMS. Open the Bluetooth application and find the relevant serial number to check data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication interfaces\u003c\/strong\u003e: RS485 (default). Customized options: CANBUS \/ HEAT.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtections (six security protection)\u003c\/strong\u003e: over charge protection; short circuit protection; over discharge protection; over current protection; all-in protection (cable drop or poor contact); over temp protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart energy working mode switching\u003c\/strong\u003e:\n\u003cul\u003e\n\u003cli\u003eStorage Mode: for transportation, storage, offline, or wireless transmission off mode; does not consume battery pack current.\u003c\/li\u003e\n\u003cli\u003eCharging activates Normal Working Mode: returns to normal working mode; protection, equalization, and communication functions return to normal.\u003c\/li\u003e\n\u003cli\u003eStandby Mode: in static state (no charge\/discharge current and no equilibrium current), automatically enters standby after the set time is exceeded (1-30 days can be set).\u003c\/li\u003e\n\u003cli\u003eShutdown: automatic shutdown voltage; automatically shuts down when a cell falls below the shutdown voltage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor wiring\/interface selection and configuration support (RS485\/CANBUS\/HEAT), contact \u003ca href=\"https:\/\/tsolar.top\/\"\u003ehttps:\/\/tsolar.top\/\u003c\/a\u003e or service@tsolar.top.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eB2A8S20P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of battery strings\u003c\/td\u003e\n\u003ctd\u003e3S to 8S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Battery Strings (Li-ion)\u003c\/td\u003e\n\u003ctd\u003e3S-8S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Battery Strings (Lifepo4)\u003c\/td\u003e\n\u003ctd\u003e4S-8S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Battery Strings (LTO)\u003c\/td\u003e\n\u003ctd\u003e6S-8S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring method \/ output\u003c\/td\u003e\n\u003ctd\u003eSame port \/ Common Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBalance method\u003c\/td\u003e\n\u003ctd\u003eActive Balance (Full State On)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBalance current\u003c\/td\u003e\n\u003ctd\u003e2000mA (2A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous current\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous charge current\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous discharge current\u003c\/td\u003e\n\u003ctd\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum discharge current\u003c\/td\u003e\n\u003ctd\u003e350A (MAX 2min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver charge protection current (ADJ)\u003c\/td\u003e\n\u003ctd\u003e10-200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductive resistance in main circuit\u003c\/td\u003e\n\u003ctd\u003e0.3mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle cell voltage detection range\u003c\/td\u003e\n\u003ctd\u003e0-5V; error \u0026lt;10mV over full operating range; typical error value \u0026lt;5mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle cell voltage range\u003c\/td\u003e\n\u003ctd\u003e1-5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage acquisition accuracy\u003c\/td\u003e\n\u003ctd\u003e±5mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport single cell voltage dropout detection\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal voltage detection range\u003c\/td\u003e\n\u003ctd\u003e0-100V, \u0026lt;0.5%FSR (FSR = full scale)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent sense shunt\u003c\/td\u003e\n\u003ctd\u003e-150A~300A, error \u0026lt;0.5%FSR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoC estimation accuracy\u003c\/td\u003e\n\u003ctd\u003eError \u0026lt;8% (operating conditions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery remaining capacity\u003c\/td\u003e\n\u003ctd\u003eError range is less than 8%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Cycle AH cumulative value\u003c\/td\u003e\n\u003ctd\u003eHalf of the charge\/discharge value\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver charge protection voltage\u003c\/td\u003e\n\u003ctd\u003e1.2-4.35V Adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver charge release voltage\u003c\/td\u003e\n\u003ctd\u003e1.2-4.35V Adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver discharge protection voltage\u003c\/td\u003e\n\u003ctd\u003e1.2-4.35V Adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver discharge release voltage\u003c\/td\u003e\n\u003ctd\u003e1.2-4.35V Adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver current detect delay\u003c\/td\u003e\n\u003ctd\u003e2~120S Adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther interfaces (default)\u003c\/td\u003e\n\u003ctd\u003eRS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther interfaces (customized)\u003c\/td\u003e\n\u003ctd\u003eCANBUS\/HEAT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth function\u003c\/td\u003e\n\u003ctd\u003eBluetooth built-in; support for Android \u0026amp; iOS phone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating power consumption\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5mA (without communication) \/ 15mA (485\/CAN)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandby power consumption\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;2mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature detection\u003c\/td\u003e\n\u003ctd\u003e-40~125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity of temperature detection\u003c\/td\u003e\n\u003ctd\u003e3Pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-40~85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStoring temperature\u003c\/td\u003e\n\u003ctd\u003e-40~95°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemp protection\u003c\/td\u003e\n\u003ctd\u003eYES\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort circuit protection\u003c\/td\u003e\n\u003ctd\u003eYES\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoulomb counter\u003c\/td\u003e\n\u003ctd\u003eYES\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e153*136*18mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface pin labels (as marked)\u003c\/td\u003e\n\u003ctd\u003eCAN\/RS485: GND, CAN_H, CAN_L\u003cbr\u003eRS485: GND, RX, TX, VCC\u003cbr\u003eLCD: K-, K+, GND, B, A, VCC\u003cbr\u003eMarkings: GPS; LCD (by default); CANBUS (need customization); Heat Function (need customization)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLiFePO4 battery packs (4S-8S), Li-ion battery packs (3S-8S), and LTO battery packs (6S-8S)\u003c\/li\u003e\n\u003cli\u003eEnergy storage battery packs requiring 200A continuous current and active balancing\u003c\/li\u003e\n\u003cli\u003eBattery packs requiring Bluetooth monitoring and RS485 communication (default)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\n\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"JKBMS active balance BMS module with wiring harness and model text overlay (JK-BD6A17S6P)\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B2A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-2A.jpg?v=1780060102\"\u003e\n\u003cp\u003eActive-balancing BMS options in the JKBMS line are designed for multi‑string lithium battery packs and clean harness routing.\u003c\/p\u003e\n\u003cimg alt=\"JKBMS active balance BMS with blue leads and feature callouts including 2A balancing and RS485 support\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B2A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-2A_a50d33bb-5c5d-4329-94ca-68baf5317146.jpg?v=1780060109\"\u003e\n\u003cp\u003eBuilt-in communication support helps you monitor pack status and tune settings from a compatible app or wired interface.\u003c\/p\u003e\n\u003cimg alt=\"Exploded view of the JKBMS enclosure showing internal PCB layers, connectors, and main components\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B2A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-2A.png?v=1780060117\"\u003e\n\u003cp\u003eA layered internal layout highlights the control board, power components, and connector blocks inside the housing.\u003c\/p\u003e\n\u003cimg alt=\"Close-up of BMS connector row labeled CAN\/RS485, LCD, GPS, and heat function pins (custom options noted)\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B2A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-2A_e4f96e9f-89f0-4e15-ae1f-4215b4486a52.jpg?v=1780060123\"\u003e\n\u003cp\u003eConnector labeling makes it easier to choose the right interface—RS485 by default, with CANBUS or heating options available.\u003c\/p\u003e\n\u003cimg alt=\"Smartphone screen displaying battery pack data, cell voltages list, and balancing status via Bluetooth app\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B2A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-2A_096bf6d6-3612-4899-97a8-c91364d4b336.jpg?v=1780060130\"\u003e\n\u003cp\u003eBluetooth monitoring provides quick access to pack voltage, current, SOC, and per-cell voltage readings.\u003c\/p\u003e\n\u003cimg alt=\"Three app screenshots showing device scan list, chemistry selection, wire resistance settings, and live cell data\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B2A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-2A_6276cb17-2b96-4f25-9b79-9e327bc7c291.jpg?v=1780060138\"\u003e\n\u003cp\u003eIn-app setup covers chemistry selection and calibration-style settings alongside real-time cell and pack telemetry.\u003c\/p\u003e\n\u003cimg alt=\"Infographic of six security protections: overcharge, short circuit, overdischarge, overcurrent, all-in, overtemp\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B2A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-2A_955736e4-fcb9-42be-8044-c9f58a4434c3.jpg?v=1780060145\"\u003e\n\u003cp\u003eSix core protection functions help safeguard the pack during charging, discharge, faults, and temperature events.\u003c\/p\u003e\n\u003cimg alt=\"Smart energy working mode switching chart: Storage Mode, Normal Working Mode, Standby Mode, and Shutdown\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B2A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-2A_54d1bb3e-55ee-43d9-97a5-e651da4698c7.jpg?v=1780060152\"\u003e\n\u003cp\u003ePower modes support storage and transport needs while returning to normal operation automatically when charging begins.\u003c\/p\u003e\n\u003cimg alt=\"Specification comparison table listing multiple BMS models, supported strings, balance current, and interfaces\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-B2A8S20P-3S-8S-Active-Balance-BMS-Balance-Current-2A_9d0575c4-5fe4-41f4-a487-a2242e04990b.jpg?v=1780060159\"\u003e\n\u003cp\u003eA spec table helps confirm string count, balance current, and interface options across available variants.\u003c\/p\u003e\n\u003cbr\u003e\n\u003c\/div\u003e","brand":"JIKONG","offers":[{"title":"Default Title","offer_id":52312111579410,"sku":"jk-2718-","price":90.77,"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-11.jpg?v=1780059756","url":"https:\/\/tsolar.top\/products\/src-jk-2718-jkbms-b2a8s20p-3s-8s-active-balance-bms-balance-current-2a-continuous-current-200a-lifepo4-li-ion-lto-battery","provider":"TSolar","version":"1.0","type":"link"}