The power goes off automatically.
Not only Xiaomi mobile phones, other mobile phone brands also support the function of full automatic power off, this function is the most basic, even if the razor is with this function, so you can be assured to charge, do not have to observe at any time, but it is recommended to expect the charging time when full, and then see if it is full, such as full of electricity, manually unplug the charger, In case the charger or mobile phone is damaged, it will lead to safety risks.