• JK-B2A32S-RP Active Balance BMS — Main Product Image
  • JK-B2A32S-RP Technical Specifications & Parameters
  • JK-B2A32S-RP Package Contents & Accessories
  • JK-B2A32S-RP Active Balancing Effect Demonstration
  • JK-B2A32S-RP Before & After Comparison with Active Balancing
  • JK-B2A32S-RP Application Scenarios — Solar, ESS, EV Battery Pack
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JKBMS

JKBMS JK-B2A32S-RP Active Balance BMS 32S 300A — Smart Battery Management System with Heating, UART & LCD Support

JKBMS JK-B2A32S-RP Active Balance BMS 32S 300A — Smart Battery Management System with Heating, UART & LCD Support

$166.68 USD
$372.68 USD $166.68 USD
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JK-B2A32S-RP Active Balance BMS

The JK-B2A32S-RP is a high-performance active balancing Battery Management System (BMS) supporting up to 32S cell configurations with 300A continuous charge/discharge current. Featuring active equalization technology, UART interface, display screen support, heating function, and ACC/charger detection.

Key Features

  • Active equalization technology — transfers energy from high-voltage cells to low-voltage cells
  • Maximum balancing current: 2A
  • Supports up to 32 cell strings in series
  • 300A continuous charge & discharge current (upgradeable by replacing shunt resistor)
  • 600A maximum instantaneous current
  • UART interface for battery positioning
  • Display screen interface (optional LCD accessory)
  • Heating function: 10A heating current, supports 16AWG+ heating wire
  • ACC / Charger detection via GH1.25-7PIN connector
  • Bluetooth APP control (JKBMS App)

Basic Parameters

Parameter Value Unit
Supply Voltage 20–130 V
Operating Power Consumption ≤1.2 W
Operating Temperature -30 ~ 70 ℃
Max Cell Strings 32 S
Max Balancing Current 2 A
Max Charge / Discharge Current 300 A
Max Instantaneous Current 600 A
PCB Dimensions 234.6 × 157.5 × 30.5 mm
Finished Weight 1280 g

Default Protection Parameters

Parameter LI-ION LiFePO4 LTO Unit
Balancing Initial Voltage 3 3 2 V
Max Balancing Current 2 2 2 A
Cell Overcharge Voltage 4.2 3.6 2.7 V
Overcharge Recovery 4.18 3.55 2.65 V
Cell Undervoltage Protection 2.82 2.6 1.8 V
Undervoltage Recovery 2.85 2.65 1.85 V
Auto Shutdown Voltage 2.8 2.5 1.7 V
SOC 0% Voltage 2.9 2.6 1.85 V
SOC 100% Voltage 4.18 3.5 2.65 V
Trigger Balance Differential 0.01 0.01 0.01 V
Charge Overcurrent Delay 30 30 30 s
Charge Overcurrent Release 60 60 60 s
Discharge Overcurrent Delay 300 300 300 s
Discharge Overcurrent Release 60 60 60 s
Charge Overtemp Protection 70 70 70 ℃
Charge Overtemp Recovery 60 60 60 ℃
Discharge Overtemp Protection 70 70 70 ℃
Discharge Overtemp Recovery 60 60 60 ℃
Charge Low Temp Protection -20 -20 -20 ℃
Charge Low Temp Recovery -10 -10 -10 ℃
Device Address 0 0 0 /
Discharge Precharge Time 5 5 5 s

User Manual & Downloads

For detailed installation instructions, APP setup guide, and firmware downloads, please visit our After-Sales Service & Download Center and search for JKBMS JK-B2A32S-RP Active Balance BMS User Manual — V20.1.1.

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