Common mobile phone charging slow there are two main factors, first, the quality of the data line will affect the charging speed, you can change a data line to compare, it is best to use the official data line or a few well-known data lines, a few dollars a piece or do not use.
Second, the charging head, which is the key to affecting the charging speed, if it is your own home, of course, the official is better. If it is used in the car, most of the use of cigarette lighter to USB interface, this generally has no official accessories, pay attention to the output current A number when buying online, but many of these parameters are suspected of fraud, so we only choose a regular manufacturer, in order to ensure that there is enough output, recommend several mainstream brands of accessories.
If the charging icon is unstable or there is no charging icon, please check the connection between the phone\/tablet and the car charger to ensure that the charger interface is properly connected to the car, and the interface is free of dirt and foreign objects.
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If the charging icon is stable but slowly charging, it may be because you are running applications such as navigation while charging, and the slow charging speed is a normal phenomenon.
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In addition, you are advised to use the charger and cable recommended by Huawei. Non-huawei car chargers may not support fast charging, resulting in a slow charging speed.
If the car charger is of good quality, then the reason for slow charging is mostly caused by the charging data cable, it is recommended to change the charging cable.