This chip should be the power management chip of the power bank. The chip is in working condition when charging, and heating is a normal phenomenon. However, when not charging, the charging treasure is in the open state. The battery is empty and there is no current output, and it should not be hot. It is hot at this time, then it must be a hardware failure. It has little maintenance value and is not recommended for further safety.
This power bank is very fake. The 14Pin chip should be a charge and discharge management chip, and the Shanzhai circuit will use a low-cost op amp chip. The heat of this chip should not be high, unless it is broken, there is a possibility that the side of the DC booster chip heat conduction to this chip, feel that it is heating.