Fast charging of mobile phones has become slow charging due to the following reasons:
1, it is possible to change the charging cable, charging will be slow.
2, the charging temperature is too high, the battery temperature will be higher than a certain value, so that the charging current will gradually decrease, so that the charging speed will slow down, resulting in a decrease in the charging speed.
3, the data cable interface can not be fully plugged into the phone, so fast charging may enter the ordinary charging mode, resulting in slow charging.