Yes, the Mi charger will automatically power off. When the charger detects that the battery is fully charged, it will automatically stop the output current to avoid overcharging the battery leading to safety issues. In addition, the millet charger also has multiple protection mechanisms, such as overcurrent, overheat, overvoltage and other protection functions, to ensure the safety of the charger and equipment. Therefore, the use of millet charger can be assured of charging, without worrying about safety issues.