{"product_id":"src-jk-3886-jkbms-v20-jk-b2a32srp-8s-32s-need-relay-active-balance-bms-balance-current-2a-continuous-current-300a-lifepo4-li-ion-lto-battery-jikong-bms","title":"JIKONG JK-B2A32SRP Active Balance BMS 8S-32S 2A Balancing 300A Bluetooth RS485 for LiFePO4\/Li-ion\/LTO Packs","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 V20 JIKONG JK-B2A32SRP is an active balance \u003ca href=\"https:\/\/tsolar.top\/collections\/battery-bms\" title=\"Battery BMS\"\u003eBMS\u003c\/a\u003e (battery management system) for multi-string battery packs, supporting LiFePO4 (8S-32S), Li-ion (7S-32S), and LTO (14S-32S). It features 2A active balancing (Full State On), 300A continuous charge\/discharge capability, built-in Bluetooth for Android\/iOS monitoring, and RS485 communication as standard.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery string support:\u003c\/strong\u003e 8S to 32S (LiFePO4), 7S to 32S (Li-ion), 14S to 32S (LTO)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive balancing:\u003c\/strong\u003e 2000mA (2A), Active Balance (Full State On)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh current rating:\u003c\/strong\u003e 300A continuous charge current; 300A continuous discharge current; 600A maximum discharge current (MAX 2min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Bluetooth:\u003c\/strong\u003e supports Android \/ iOS phones; activate and view pack data via the specified Bluetooth application\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication interfaces:\u003c\/strong\u003e RS485 (default); CANBUS\/HEAT (customized option)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection functions listed:\u003c\/strong\u003e over charge protection, over discharge protection, over current protection, short circuit protection, all-in protection (cable drop\/poor contact), over temp protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy\/work mode switching (as described):\u003c\/strong\u003e Storage Mode, Normal Working Mode, Shutdown, Standby Mode (standby 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\u003eJK-B2A32SRP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eSeries \/ Version\u003c\/th\u003e\n\u003ctd\u003eJKBMS V20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eSupported battery chemistry \/ strings\u003c\/th\u003e\n\u003ctd\u003eLi-ion: 7S-32S; LiFePO4: 8S-32S; LTO: 14S-32S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eNumber of battery strings (general)\u003c\/th\u003e\n\u003ctd\u003e8S to 32S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eWiring method \/ output\u003c\/th\u003e\n\u003ctd\u003eSame port \/ Common Port\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\u003e2A (2000mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eContinuous charge current\u003c\/th\u003e\n\u003ctd\u003e300A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eContinuous discharge current\u003c\/th\u003e\n\u003ctd\u003e300A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eMaximum discharge current (MAX 2min)\u003c\/th\u003e\n\u003ctd\u003e600A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eOver charge protection current (ADJ)\u003c\/th\u003e\n\u003ctd\u003e10-300A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eConductive resistance in main circuit\u003c\/th\u003e\n\u003ctd\u003e0.3mΩ\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\"\u003eSingle cell voltage detection range\u003c\/th\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\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\"\u003eTotal voltage detection range\u003c\/th\u003e\n\u003ctd\u003e20-130V; \u0026lt; 0.5%FSR (FSR = full scale)\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\"\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 is less than 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\"\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\"\u003eShort circuit protection\u003c\/th\u003e\n\u003ctd\u003eYES\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eTemperature detection\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\"\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\"\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\"\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\"\u003eBluetooth function\u003c\/th\u003e\n\u003ctd\u003eSupport for Android \u0026amp; IOS phone\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\u003e235*158*31mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWiring \u0026amp; Interface Notes (from provided diagrams)\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWiring diagrams are provided for \u003cstrong\u003e20S\u003c\/strong\u003e, \u003cstrong\u003e24S\u003c\/strong\u003e, and \u003cstrong\u003e32S\u003c\/strong\u003e configurations, showing connections for \u003cstrong\u003eLOAD\u003c\/strong\u003e, \u003cstrong\u003eCHARGER\u003c\/strong\u003e, \u003cstrong\u003eDischarger Relay\u003c\/strong\u003e, \u003cstrong\u003eCharger Relay\u003c\/strong\u003e, and \u003cstrong\u003eHeating Film\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003ePort labeling shown includes: \u003cstrong\u003eB+\u003c\/strong\u003e, \u003cstrong\u003eB-\u003c\/strong\u003e, \u003cstrong\u003eC-\u003c\/strong\u003e, \u003cstrong\u003eRelay Driver\u003c\/strong\u003e, and \u003cstrong\u003eNTC\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eConnector labeling shown:\n    \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCANBUS\u003c\/strong\u003e (need customization): GND, CAN_H, CAN_L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRS485\u003c\/strong\u003e (by default): GND, RX, TX, VCC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLCD\u003c\/strong\u003e (by default): 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\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLiFePO4, Li-ion, or LTO battery packs within the supported string ranges\u003c\/li\u003e\n\u003cli\u003eEnergy storage battery packs requiring active balancing, Bluetooth monitoring, and RS485 communication\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor product selection help and after-sales support, contact service@tsolar.top or visit https:\/\/tsolar.top\/.\u003c\/p\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"20S wiring diagram for common-port BMS with charge\/discharge relays, load\/charger wiring, and NTC sensor\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-V20-JK-B2A32SRP-8S-32S-Need-Relay-Active-Balance-BMS.jpg?v=1780129954\"\u003e\u003cp\u003eUse the wiring examples to plan relay, load, charger, and temperature-sensor connections for multi‑string packs.\u003c\/p\u003e\n\u003cimg alt=\"JIKONG JK-B2A32SRP active balance BMS wiring reference (32S) showing B-, C-, B+ and relay driver connections\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-V20-JK-B2A32SRP-8S-32S-Need-Relay-Active-Balance-BMS_2e7c811e-c89a-4390-b172-712adac745d6.jpg?v=1780129965\"\u003e\u003cp\u003eA 32S connection layout helps match the balance lead order and main terminals before powering up the pack.\u003c\/p\u003e\n\u003cimg alt=\"24S wiring diagram illustrating BMS terminal blocks, relay driver leads, NTC input, and B+\/B- routing\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-V20-JK-B2A32SRP-8S-32S-Need-Relay-Active-Balance-BMS_5985b3bb-2370-44c3-a4b5-55b24cec09a1.jpg?v=1780129978\"\u003e\u003cp\u003e24S packs can follow the same common-port approach, with the balance harness landing sequentially on the BMS.\u003c\/p\u003e\n\u003cimg alt=\"JIKONG smart active balance BMS marketing graphic with model text and supported string ranges for a 60A unit\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-V20-JK-B2A32SRP-8S-32S-Need-Relay-Active-Balance-BMS_096a7176-02cf-4088-b776-c5f340ecda75.jpg?v=1780129988\"\u003e\u003cp\u003eActive balancing is available across multiple JIKONG BMS variants; select the series\/string count that matches your pack.\u003c\/p\u003e\n\u003cimg alt=\"JIKONG BMS product graphic listing 2A active balance, supported strings up to 20S, and RS485\/CAN options\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-V20-JK-B2A32SRP-8S-32S-Need-Relay-Active-Balance-BMS_9709e9af-c1c8-4aa8-9e2f-36773952db53.jpg?v=1780130001\"\u003e\u003cp\u003eCommunication options such as RS485 (standard on many versions) and optional CAN are highlighted for system integration.\u003c\/p\u003e\n\u003cimg alt=\"Exploded view of BMS enclosure showing stacked circuit boards, internal components, and heavy-gauge power leads\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-V20-JK-B2A32SRP-8S-32S-Need-Relay-Active-Balance-BMS.png?v=1780130011\"\u003e\u003cp\u003eA multi-board internal layout supports high-current routing while keeping balancing and sensing circuits organized.\u003c\/p\u003e\n\u003cimg alt=\"JIKONG JK-B2A32SRP port layout close-up labeling CAN\/RS485, GPS, LCD header, and optional heat connector pins\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-V20-JK-B2A32SRP-8S-32S-Need-Relay-Active-Balance-BMS_66c9ebce-328a-41cd-b3de-5130bbae1b99.jpg?v=1780130021\"\u003e\u003cp\u003eConnector labeling makes it easier to identify RS485\/CAN wiring, display header, and optional heating-function interface.\u003c\/p\u003e\n\u003cimg alt=\"Bluetooth BMS mobile app screen displaying pack voltage, balance current, cell voltages list, and wire resistance data\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-V20-JK-B2A32SRP-8S-32S-Need-Relay-Active-Balance-BMS_711ebd15-81c2-4b39-9061-0ebdfda38cb4.jpg?v=1780130032\"\u003e\u003cp\u003eBuilt-in Bluetooth lets you monitor total voltage, individual cell voltages, and balancing status from a phone app.\u003c\/p\u003e\n\u003cimg alt=\"JIKONG BMS app screenshots showing device scan list, chemistry selection (Li-ion\/LiFePO4\/LTO), and live cell data\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-V20-JK-B2A32SRP-8S-32S-Need-Relay-Active-Balance-BMS_b90ff9e6-afaf-4ba4-ad68-8a4179e8c49c.jpg?v=1780130043\"\u003e\u003cp\u003eQuick setup screens cover device discovery and chemistry selection, followed by live cell and pack status pages.\u003c\/p\u003e\n\u003cimg alt=\"Battery protection infographic listing overcharge, overdischarge, overcurrent, short circuit, all-in, and overtemp protection\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-V20-JK-B2A32SRP-8S-32S-Need-Relay-Active-Balance-BMS_da78b6f0-7f6e-4e6c-aef9-fb243c3a6e61.jpg?v=1780130053\"\u003e\u003cp\u003eCore safety functions include over\/under-voltage, overcurrent and short-circuit protection, plus temperature monitoring.\u003c\/p\u003e\n\u003cimg alt=\"Smart energy working mode switching chart for BMS: storage mode, normal working, standby mode, and shutdown logic\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-V20-JK-B2A32SRP-8S-32S-Need-Relay-Active-Balance-BMS_cae52bee-e638-44d0-a8d9-37ce663335e8.jpg?v=1780130063\"\u003e\u003cp\u003eEnergy modes help reduce idle drain, with transitions between storage, standby, normal operation, and shutdown.\u003c\/p\u003e\n\u003cimg alt=\"Specification comparison table for JIKONG active balancer BMS models showing string support, balance current, and interfaces\" loading=\"lazy\" src=\"https:\/\/tsolar.top\/cdn\/shop\/files\/JKBMS-V20-JK-B2A32SRP-8S-32S-Need-Relay-Active-Balance-BMS_0365792a-99e9-43cb-99fb-48b35c086b57.jpg?v=1780130071\"\u003e\u003cp\u003eRefer to the comparison chart to confirm string count support, balancing current, and the default communication interface.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JIKONG","offers":[{"title":"JK-B2A32SRP","offer_id":52312432050450,"sku":"jk-3886-1","price":224.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0863\/2860\/6994\/files\/JKBMS-V20-JK-B2A32SRP-8S-32S-Need-Relay-Active-Balance-BMS-Balance-Current-2A-Continuous-Current-300A-Lifepo4-li-ion-LTO-Battery-JIKONG-BMS-1.png?v=1780070018","url":"https:\/\/tsolar.top\/products\/src-jk-3886-jkbms-v20-jk-b2a32srp-8s-32s-need-relay-active-balance-bms-balance-current-2a-continuous-current-300a-lifepo4-li-ion-lto-battery-jikong-bms","provider":"TSolar","version":"1.0","type":"link"}