How to solve the problem that the USB port cannot charge quickly or the fast charging power does not meet the standard

The USB output of the energy storage power supply cannot be charged quickly or the fast charging power does not meet the standard. This may be caused by the device not supporting the fast charging function, the energy storage power supply not supporting fast charging power, the connection problem between the device and the USB port, or the internal failure of the energy storage power supply. . If your power supply has the following problems, please follow the steps in this article to troubleshoot and solve the output problem.

Phenomenon: The USB port (USBA/C) does not have a fast charging function, or the fast charging power does not meet the fast charging standard.

Please follow the steps below to troubleshoot and resolve output issues.

Step 1. Check USB device

​ Check the USB device. The device must support the fast charging function; if it does not support the fast charging function, it does not have the fast charging function. If there is a fast charging function, whether the device uses standard protocol fast charging technology (QC3.0 and USB PD), or third-party fast charging technology may have compatibility issues.

Step 2: Check device usage patterns

Some devices (mobile phones and notebooks) only have fast charging and maximum power when the screen is off; charging in the screen-on mode cannot reach the fast charging power (to prevent the internal battery from overheating).

Remarks (fast charging conditions):
1. The energy storage power supply USB port supports fast charging protocol
2. User equipment supports fast charging function
3. The charging cable meets the fast charging requirements (original charging cable is recommended)