How can I prevent harmful deep discharging?

To prevent battery death, our battery is equipped with an intelligent battery management system (BMS). This constantly checks the voltage in the battery cells - and automatically switches to a resting state if the voltage is too low: further discharge is stopped, but is still present to a small extent. For this reason, es recommends only storing Li batteries with a charge level of 30 to 60 percent, even in the cold season: your batteries will feel well prepared.