Many problems need to be detected to know whether it is the problem of the charging bank or the problem of the phone. When charging the mobile phone, the charging bank first senses the current of the mobile phone before charging normally. When the mobile phone is full, the charging current of the mobile phone will become very small. At this time, the charging bank will determine that the mobile phone is full, and the power will be automatically cut off. Failure to automatically power off, may be the problem in these two places, it is recommended to find a other mobile power to try, if you can automatically power off is the problem of mobile power.
The reason for this situation may be that the joint contact is not good, resulting in leakage. Or there is a problem with the charging bank, the positive and negative output is reversed, and the problem can not be used for the time being.