When multiple devices are connected to an adaptor at the same time, the adaptor will reallocate power. This can sometimes lead to a brief pause in charging for one or more devices, which is normal.

Check whether the socket is old or loose. If you find any problems, replace the socket with a new one. Every adaptor has undergone rigorous safety certification and testing. The sparks do not affect product use or pose any safety risks. Please use the adaptor with confidence.

When multiple ports are used to charge at the same time, the adaptor will reallocate power, which can lead to a decrease in the power of the original charging port. For example, the adaptor will maintain a charging output of 45 W for the C1 port. Please refer to the User Guide for more details. If the correct interface is used, it could be that the laptop cannot be charged at a power of 65 W or less. It is recommended to use the adaptor to charge the laptop separately.

The working frequency of the internal components of the power adaptor is within the audible frequency range of human ears (20 Hz to 20 KHz). People with sensitive ears may hear this noise. This can be avoided by unplugging the power adaptor when it is not in use.Every adaptor has undergone rigorous safety certification and testing. The noise is generated by the normal operation of the product and does not affect product use or pose any safety risks. Please use it with confidence.
If you have any further questions, do not hesitate to contact us.

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.

We apologize for any inconvenience this may have caused. We sincerely recommend that you follow these steps to check:
1) Check if the voltage in the region you are using the adaptor is compatible with the rated working voltage of the adaptor.
2) Check if the output voltage of the adaptor is compatible with the device's required rated working voltage.
3) Check if the adaptor interface is compatible with the charging cable interface.
4) Check if the USB cable is properly connected or if the USB cable itself is damaged.
5) Try using another adaptor to check if the problem is with the battery.
6) Check the charging ports of the device or charging cable for any dirt or damage.
7) Check the compatibility of your device's fast charging protocol with the adaptor. Some devices may use proprietary charging protocols, and cannot be charged with third-party adaptors.
If the above steps do not resolve the issue, it is recommended to take the device to a service center for inspection.