1, may be due to the charging cable and mobile phone do not match caused by, in this case you can change other charging cable to try, or the charging port clean and plug in the charging bank, if the phone can be charged normally, it proves that the mobile phone and the charging bank are normal, can continue to use.
2. It may be caused by the charging detection and protection of the mobile phone itself, and the situation is because the current of the charging bank does not match the current of the mobile phone. It is recommended to replace the charging bank that matches the mobile phone and recharge.
3, not because there is a problem with the charging treasure itself, but because of the problem of the mobile phone battery, so before repairing the charging treasure, you should use the mobile phone charger to charge the mobile phone directly to test whether the mobile phone battery is healthy. If the phone battery is healthy, it is still unable to charge the phone after replacing the data cable, in this case it is recommended to replace the battery in the charging bank.