Hello, the ideal working environment temperature of the battery is between 15℃ and 40℃.
Under low temperature conditions in winter, the characteristics of lithium-ion batteries determine that the chemical reaction activity inside the battery is reduced, resulting in slower battery charging and reduced available capacity.
In order to protect the mobile phone battery, the system has set a low temperature protection, which automatically reduces the charging speed and the maximum charging power under low temperature conditions.
If the temperature drops even lower, it will even stop charging the battery.
Therefore, if the drop-down status bar shows the \"ambient temperature is too low, the battery can not be full\" prompt, it means that the charging ambient temperature of the phone is too low at this time, you can move the phone to a warm place in the room can charge normally.