JFBMS32

32S Smart BMS 

Specifications

• Cell Configuration Range: 3–32S
• Maximum Continuous Charging Current:
  • Up to 20A with aluminum case
  • Up to 10A without aluminum case
• Balancing Current: 48 mA at 4.2 V
• Built-in Suppression Circuit: Protects against voltage spikes when connecting the charger
• Charge Port Protection: Mosfets disconnect battery +
• Quiescent Current (Sleep Mode): 15 µA at 130 V

System Type

• Type: Charge-only Smart BMS
• Designed for: Seamless integration with the VESC ecosystem

VESC Integration

• Isolated CAN Bus: Ensures stable, real-time communication with the VESC
• Supports safety features such as:
  • Beeps
  • Pushback
  • Auto-shutdown

Connectivity

• Bluetooth & WiFi: For wireless diagnostics, configuration, and OTA (Over-the-Air) firmware updates
• Plug-and-Play Setup: Easily configurable using the VESC Tool (mobile or desktop)

Monitoring Capabilities

• Compatible Chemistries: Li-Ion, Li-Polymer, and LiFePO₄
• Monitored Parameters Include:
  • State of Charge (SoC)
  • Energy Usage (Amp-hours and Watt-hours)
  • Individual Cell Voltages
  • Pack and Charger Voltage
  • Charging Current

Temperature Monitoring

• Internal Sensors:
  • One integrated sensor per balancing IC
  • Two dedicated sensors for charge and discharge MOSFETs
• External Sensors: Supports up to 4 sensors via 2-pin JST GH connectors

I/O and Interfaces

• XT30 connectors for battery and charger
• JST GH connectors (side entry):
  • 2-pin for external temperature sensors
  • 6, 8, 9, and 10-pin for cell balancing leads
• Built-in Buzzer for audible system alerts
• Automatic Wake-Up & Sleep Modes for low-power operation

Physical Dimensions

• Board Size: 110 × 32 mm

This product includes

• JFBMS32
• XT30 male and female connector
• JST GH 4 pin connector with 20cm wires for CANbus
• JST GH Teflon wires (40cm) – 2, 6, 8, 9, and 10-pin
• 4 thermistors