LWS Battery Management Systems Ncm BMS 10s 10a Li-ion PCM Protection Board 6S BMS For Lithium Ion Battery Pack

PCM Specifications – 37V (10S) Li-ion Battery Pack

Model: LWS-10S15A-777-R03

1. Voltage

• Charging Voltage: DC 42V ±0.05V (CC/CV mode)

• Single Cell Balanced Voltage: 4.18V ±0.05V

2. Current

• Cell Balance Current: 64mA ±20mA

• Quiescent Current (consumption): ≤60µA

• Max Continuous Charge Current: 20A

• Max Continuous Discharge Current: 20A

3. Overcharge Protection

• Detection Voltage (per cell): 4.25V ±0.03V

• Detection Delay: 500–1500ms

• Release Voltage (per cell): 4.15V ±0.05V

4. Over-discharge Protection

• Detection Voltage (per cell): 2.70V ±0.08V

• Detection Delay: 500–1500ms

• Release Voltage (per cell): 3.00V ±0.075V

5. Overcurrent Protection

• Detection Reference Voltage: 100mV ±25mV

• Discharge Overcurrent Trip: 70A ±10A

• Charge Overcurrent Trip: 14A ±5A

• Discharge Overcurrent Delay: 100–500ms

• Charge Overcurrent Delay: 500–1500ms

• Recovery Condition: Load removal → Auto-recovery

6. Short Circuit Protection

• Condition: External short circuit

• Detection Delay: 200–500µs

• Recovery: Load removal → Auto-recovery

7. Resistance

• MOSFET Circuit Resistance: ≤50mΩ

8. Temperature Protection

• Charge/Discharge High-Temp Cutoff: 75°C ±5°C

• Recovery Temperature: 53°C ±15°C

9. Environmental Conditions

• Operating Temperature: -20°C ~ +60°C

• Storage Temperature: -20°C ~ +85°C

This PCM (Protection Circuit Module) is designed for 10S (37V nominal) Li-ion packs, supporting up to 20A continuous charge/discharge, with multiple safety protections (overcharge, over-discharge, overcurrent, short circuit, temperature).