Cell balancing: The BMS can monitor the voltage of each individual cell in a battery pack and take balancing actions to prevent weaker cells from undercharging or stronger cells from overcharging. This minimizes cell imbalance and deterioration.

Charge control: By monitoring cell temperatures and voltages, the BMS can finely control the charging process, terminating charge at just the right point. This prevents overcharging and lithium plating, which degrades batteries.