1. One button repair mode charging: use a high and low-frequency pulse to repair the battery starved due to power loss.
2. Winter and summer mode: The charger automatically detects the ambient temperature and enters the corresponding mode to ensure adequate charging in winter, but not in summer.
3. Digital display: Display  of current voltage, current, power, and ambient temperature. 
Short circuit protection: The charger will automatically turn off the output in case of an unexpected short circuit.
4. Reverse connection protection: when the positive and negative electrodes of the charger are opposite to the positive and negative electrodes of the battery, the charger will automatically turn off the output.
5. The buzzer alarm will sound, and it will be automatically released after the correct connection.
6. Sectional charging: