{"product_id":"src-jk-2703-jkbms-bd6a20s12p-7s-20s-active-balance-bms-balance-current-0-6a-continuous-current-120a-lifepo4-li-ion-lto-battery","title":"JKBMS BD6A20S12P Active Balance BMS 7S-20S, 0.6A Balancer, 120A Smart BMS for LiFePO4\/Li-ion\/LTO","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/tsolar.top\/collections\/jkbms-jikong-bms\" title=\"JKBMS - JIKONG BMS\"\u003eJKBMS\u003c\/a\u003e BD6A20S12P 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, featuring 0.6A (600mA) active balancing and 120A continuous charge\/discharge capability. It is battery-pack self-powered and includes built-in Bluetooth for monitoring via Android\/iOS.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery string support\u003c\/strong\u003e: Li-ion 7S-20S; LiFePO4 8S-20S; LTO 12S-20S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive balance\u003c\/strong\u003e: Active Balance (Full State On), balance current 600mA (0.6A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent capability\u003c\/strong\u003e: 120A continuous charge current; 120A continuous discharge current; maximum discharge current 250A (MAX 2min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth monitoring\u003c\/strong\u003e: built-in Bluetooth; supports Android\/iOS. Download the specified Bluetooth application, activate the BMS, then search the relevant serial number to view data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterfaces\u003c\/strong\u003e: RS485 (default); CANBUS\/HEAT (customized)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell\/pack measurement\u003c\/strong\u003e: supports single cell voltage dropout detection; total voltage detection range 0-100V; current sense shunt -150A to 300A\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\/poor contact); over temp protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor configuration support and after-sales assistance, contact https:\/\/tsolar.top\/ or service@tsolar.top.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eBD6A20S12P\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\u003e0.6A (600mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of battery strings (Li-ion)\u003c\/td\u003e\n\u003ctd\u003e7S-20S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of battery strings (LiFePO4)\u003c\/td\u003e\n\u003ctd\u003e8S-20S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of battery strings (LTO)\u003c\/td\u003e\n\u003ctd\u003e12S-20S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous current\u003c\/td\u003e\n\u003ctd\u003e120A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous charge current\u003c\/td\u003e\n\u003ctd\u003e120A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous discharge current\u003c\/td\u003e\n\u003ctd\u003e120A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum discharge current (MAX 2min)\u003c\/td\u003e\n\u003ctd\u003e250A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver charge protection current (ADJ)\u003c\/td\u003e\n\u003ctd\u003e10-120A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductive resistance in main circuit\u003c\/td\u003e\n\u003ctd\u003e0.65 mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply mode\u003c\/td\u003e\n\u003ctd\u003eThe battery pack is self-powered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring output \/ wiring method\u003c\/td\u003e\n\u003ctd\u003eCommon Port \/ same port\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\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 to 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 accuracy\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\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 to 125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStoring temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 95°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity of temperature detection\u003c\/td\u003e\n\u003ctd\u003e3 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature 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\u003eBluetooth function\u003c\/td\u003e\n\u003ctd\u003eSupport for Android \u0026amp; iOS phone\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\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\u003e2-120 s adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e162*102*20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eInterfaces \u0026amp; Pin Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCANBUS\u003c\/strong\u003e: need customization (pins labeled: GND, CAN_H, CAN_L)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRS485\u003c\/strong\u003e: by default (pins labeled: GND, RX, TX, VCC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLCD\u003c\/strong\u003e: by default (pins labeled: K-, K+, GND, B, A, VCC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat function\u003c\/strong\u003e: need customization\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSmart Energy Working Mode Switching\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Mode\u003c\/strong\u003e: In transportation, storage, offline or wireless transmission off mode, the BMS is in storage mode, which does not consume battery pack current.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNormal Working Mode\u003c\/strong\u003e: When the charger is inserted in the storage mode and off mode, the BMS will immediately return to the normal working mode, and all the protection functions, equalization functions and communication functions will return to normal working.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShutdown\u003c\/strong\u003e: The BMS has an automatic shutdown voltage, and automatically shuts down when a cell falls below the shutdown voltage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandby Mode\u003c\/strong\u003e: When the battery pack is in a static state (no charge\/discharge current and no equilibrium current), the BMS will automatically enter standby after the set time (1-30 days can be set) is exceeded.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLiFePO4, Li-ion, and LTO battery packs within the supported series range (7S-20S \/ 8S-20S \/ 12S-20S)\u003c\/li\u003e\n\u003cli\u003eBattery packs requiring active balancing, Bluetooth monitoring, and RS485\/CAN communication options\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"JKBMS smart active-balance BMS module with wiring leads, 0.6A balancing and 60A charge\/discharge (JK-BD6A17S6P)\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-BD6A20S12P-7S-20S-Active-Balance-BMS-Balance-Current.jpg?v=1780116634\"\u003e\u003cp\u003eActive-balancing smart BMS hardware helps keep multi-cell packs more consistent across charge and discharge.\u003c\/p\u003e\n\u003cimg alt=\"High-current JKBMS active-balance BMS unit with blue leads, RS485 support and optional CANBUS (JK-B2A20S20P-H-C)\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-BD6A20S12P-7S-20S-Active-Balance-BMS-Balance-Current_90d567bb-44db-43f1-b70f-bacc6e3b659d.jpg?v=1780116643\"\u003e\u003cimg alt=\"Exploded view of the JKBMS enclosure showing internal PCB layers, connectors, and power components\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-BD6A20S12P-7S-20S-Active-Balance-BMS-Balance-Current.png?v=1780116650\"\u003e\u003cimg alt=\"communication port layout showing CAN\/RS485, GPS and LCD headers, plus optional heat function connector\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-BD6A20S12P-7S-20S-Active-Balance-BMS-Balance-Current_62ef988c-0cb0-4792-af61-117df267e58e.jpg?v=1780116658\"\u003e\u003cp\u003eRS485 is the default communication interface, with CANBUS and heating control available as custom options on supported versions.\u003c\/p\u003e\n\u003cimg alt=\"Bluetooth monitoring screen on a smartphone displaying pack voltage, current, state of charge, and per-cell voltages\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-BD6A20S12P-7S-20S-Active-Balance-BMS-Balance-Current_bb67bca3-6ff6-409e-9e43-8a21e410ff8d.jpg?v=1780116667\"\u003e\u003cp\u003eBuilt-in Bluetooth lets you check pack status, cell voltages, and balance behavior from an Android or iOS app.\u003c\/p\u003e\n\u003cimg alt=\"app screenshots showing device list scan, chemistry selection (Li-ion\/LiFePO4\/LTO), and live status page\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-BD6A20S12P-7S-20S-Active-Balance-BMS-Balance-Current_15561298-8210-4bd5-bddb-c67c9e545e2a.jpg?v=1780116674\"\u003e\u003cimg alt=\"Six security protection infographic for the BMS: overcharge, short circuit, overdischarge, overcurrent, all-in, overtemp\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-BD6A20S12P-7S-20S-Active-Balance-BMS-Balance-Current_d58561f6-7d9d-4bf8-b51e-b98d120bc87b.jpg?v=1780116682\"\u003e\u003cp\u003eLayered protection features cover common fault conditions such as overcharge, overdischarge, short circuit, overcurrent, and overheating.\u003c\/p\u003e\n\u003cimg alt=\"Smart energy working mode switching chart with Storage, Normal Working, Standby, and Shutdown modes\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-BD6A20S12P-7S-20S-Active-Balance-BMS-Balance-Current_4aacd804-ea10-487c-8a90-a02020c7ef5d.jpg?v=1780116689\"\u003e\u003cp\u003eSmart working modes support long-term storage and standby behavior to reduce unnecessary battery pack drain.\u003c\/p\u003e\n\u003cimg alt=\"model comparison table listing supported series strings, balance current, continuous current, and interface options\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-BD6A20S12P-7S-20S-Active-Balance-BMS-Balance-Current_15d27c3b-7044-447f-8a52-5fa70dc8f2d7.jpg?v=1780116698\"\u003e\n\u003c\/div\u003e","brand":"JIKONG","offers":[{"title":"Default Title","offer_id":52312374542610,"sku":"jk-2703-","price":81.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0863\/2860\/6994\/files\/JKBMS-7S-24S-Active-Balance-BMS-Balance-Current-0.6A-2A-Continuous-Current-100A-200A-Lifepo4-li-ion-LTO-Battery-5-1_e5c39fe1-33e2-4032-9885-485d57e2350e.jpg?v=1780068415","url":"https:\/\/tsolar.top\/products\/src-jk-2703-jkbms-bd6a20s12p-7s-20s-active-balance-bms-balance-current-0-6a-continuous-current-120a-lifepo4-li-ion-lto-battery","provider":"TSolar","version":"1.0","type":"link"}