Battery resting periods are used for balancing in electromobility. However, balancing can only start once the charging process is finished, which causes considerable delay. The batteries of electric cars that are driven every day may never have a true resting period. This is where battery management systems (BMS) are advantageous, because instead of balancing based on voltage, they level, i.e. carry out efficiency leveling. Leveling only takes a few seconds without the need for resting periods.