We apologize for any inconvenience this may have caused. We sincerely recommend that you follow these steps to check: 1) Check if the USB cable is properly connected or if the USB cable itself is damaged. 2) Try using another adaptor to check if the problem is with the battery. 3) Check the charging ports of the device or charging cable for any dirt or damage. 4) If the temperature of the device being charged is too high, charging may be limited. You can try to unplug the device for a short period of time or place it in a cooler environment before reconnecting the adaptor. If the above steps do not resolve the issue, it is recommended to take the device to a service center for inspection.