There may be the following reasons for the slow charging of mobile phones:
1. Slow charging when the charger or data cable is not plugged in or the interface is not clean:
a. When charging, the charger, data cable, and mobile phone charging interface are not in contact, which may lead to slow charging, failure to enter the fast charge or failure to charge, please plug and unplug the charger several times.
b. Check whether the connectors and jacks are clean. If dust is found, wipe it with alcohol or clean it with a brush. If alcohol wipe, need to wait for alcohol to dry, and then re-charge to confirm.
2, the ambient temperature is high, the mobile phone is hot when charging slowly:
a. Huawei mobile phone has a special overheat protection design. When the temperature of the mobile phone is high, the charging current will gradually decrease.
b. During the charging process, the temperature of the mobile phone will change to a certain extent, especially when the mobile phone is charging, it also runs some high-power programs, which will make the temperature rise significantly, which will lead to slow charging.
c. The summer weather is hot, the ambient temperature is high, and the mobile phone is difficult to dissipate heat, so the charging speed will be relatively slow compared with the winter when the ambient temperature is low, which is a normal phenomenon.
d. It is recommended that you charge the phone at room temperature as far as possible, and it is recommended to close the high-power applications running in the background when charging.
3. Slow charging while using:
A. The mobile phone is charged while it is being used. Part of the current input by the charger needs to offset the electricity consumed by the mobile phone hardware such as the screen when it is in use, resulting in a decrease in the current to charge the battery and a slow charging speed.
b. Using the mobile phone while charging will also cause the temperature of the mobile phone to rise, and the charging speed will be further slowed down due to the thermal protection mechanism of the mobile phone.
c. It is recommended that you avoid using your mobile phone while charging, especially for applications with high power consumption, such as playing games and watching videos.