The reasons are as follows:
1. Charging plug; To charge the device, choose the right charging plug; If the charging plug you are currently using is not original, it may be because the charging power of your device is relatively large, and the charging head power currently used is relatively small and can not meet the use, which will also lead to slower charging speed;
2, entered the trickle charging stage, due to the characteristics of the battery, the current mobile phone fast charging is only in the middle of a period of process to achieve full power charging, at the beginning and fast full time are charged at a relatively slow speed, if you are charged to a certain period of time suddenly slow, indicating that the battery is fast full;
3, check whether the charging ambient temperature is too hot, causing the phone to open the charging protection mode, unplug the charging data cable, rest for a period of time to let the phone cool down before recharging. It is recommended not to use the mobile phone when charging, put the mobile phone in a ventilated place to charge;
4, if you try to restart, pull out the power to rest for a period of time still can not solve the problem of slow charging, may be due to your mobile phone circuit or battery failure, it is recommended to repair the mobile phone;
OPPOA11. Charge your phone. The speed is slow, there may be two reasons, the first is that your phone is not fast charging head. The charging wattage is small, so the charging is slow and another is that your mobile phone has been used for several years, and the battery aging charging speed is also slow.
You first change a charging head, a fast charging head to try to see if the charging speed has improved? If there is any commission?
Then your cell phone battery is dead and you need a new one.