ANT BMS 4S 60A-420A Smart 12V Ternary Lithium Iron Phosphate LiFePO4 Battery Protection Board with Balance/Bluetooth/TTL

Specification Parameters

Accessory Package Weight: 32g

Charging Voltage (V)

• Li-ion (series count) × 4.2V
• LiFePO₄ (series count) × 3.65V
• LiTiO₂ (series count) × 2.4V
• Na-ion (series count) × 3.2V

Built-in Bluetooth

Supports Android, iOS, HarmonyOS apps and mini-programs to connect via Bluetooth for viewing and setting parameters.

Default Communication

• Bluetooth
• UART (TTL)

Customizable Communication

• RS485
• CAN
• MODBUS
• UART

Customizable Interfaces

• GPS
• Custom DIO
• Heating Module

Cell Balancing Function

• Balancing Current: 100mA
• Start Voltage Difference: Default 0.020V (adjustable range)
• End Voltage Difference: Default 0.005V (adjustable range)

Short-Circuit Protection

• Protection Condition: External load short circuit
• Protection Hysteresis: 1200US
• Protection Removal: Disconnect the load (or auto-recover in a few seconds)

Cell Overcharge Protection

• Protection Voltage (V):
  • Li-ion: 4.2V; LiFePO₄: 3.65V
  • LiTiO₂: 2.7V; Na-ion: 3.95V
• Protection Hysteresis (S): 1 second
• Recovery Voltage (V):
  • Li-ion: 4.1V; LiFePO₄: 3.45V
  • LiTiO₂: 2.4V; Na-ion: 3.85V

Cell Over-discharge Protection

• Protection Voltage (V):
  • Li-ion: 3.2V; LiFePO₄: 2.9V
  • LiTiO₂: 1.8V; Na-ion: 1.8V
• Protection Hysteresis (S): 1 second
• Recovery Voltage (V):
  • Li-ion: 3.2V; LiFePO₄: 3V
  • LiTiO₂: 1.9V; Na-ion: 2V

Charge/Discharge Overcurrent Protection

• Protection Hysteresis (S): 5 seconds
• Protection Removal Condition: Disconnect the load

Temperature Protection

• Operating Temperature (°C): -40~85°C
• Storage Temperature (°C): -40~85°C