Powerful and reliable Battery Management System (BMS) designed for high-capacity 14S Lithium-ion battery packs (51.8V nominal / 58.8V full charge). Built for demanding applications with dual heat sinks for improved thermal management and long-term stability.

• Battery Type: 14S Li-ion / LiPo (not for LiFePO4)

• Rated Voltage: 51.8V nominal / 58.8V fully charged

• Continuous Discharge Current: 120A

• Charge Current: Up to 60A

• Dual Aluminum Heat Sinks: Efficient passive cooling under high loads

• Protection Features: Overcharge, overdischarge, overcurrent, short-circuit, and temperature protection

• Balancing Function: Passive balancing helps maintain even cell voltage

Protection Functions:

• Overcharge Protection: Cuts off charging if any cell exceeds approximately 4.25V (total ~58.8V)

• Overdischarge Protection: Disconnects the load if any cell drops below around 2.7V (total ~37.8V)

• Overcurrent Protection: Limits discharge current to prevent overload (120A continuous, peak ~150A depending on model)

• Short Circuit Protection: Instantly disconnects the battery if a short circuit is detected

• Temperature Protection: Prevents operation if the temperature exceeds safe limits

• Cell Balancing: Passive balancing to equalize cell voltages and extend battery lifespan

Applications:

• High-power e-bikes, scooters, and e-skateboards

• Solar battery banks and power walls

• 48V inverter or UPS systems

• Industrial backup systems and portable energy solutions

Installation Notes:

• Connect balance leads (B1–B14) before connecting main power leads

• Terminals: B+, B-, P+, P-, C- (charge negative, if separate)

• Use 14S Li-ion cells only – not compatible with LiFePO4

• Secure heat sinks in a ventilated enclosure for safe operation

• Fuse and breaker recommended for added safety