Laptops that cannot be charged are mainly caused by power adapter failure, battery failure, motherboard failure, circuit failure, software problems, etc. Try to use the troubleshooting method to check one by one, and replace it after the inspection is completed. The following is a detailed introduction:

1. The power adapter is faulty. You can try the replacement method; use another adapter or replace it first Take out the battery and check to see if it is a battery failure. If not, it is recommended to replace it with a new adapter.

2. After the above methods are eliminated, if it is a battery failure, the battery life of the power adapter will generally be reduced. In less than a few minutes, or the battery cannot be detected directly, you only need to replace one battery. Currently, most notebooks have built-in batteries. It is recommended to go to an after-sales service point for replacement and maintenance;

　3 If the above two are eliminated, it is likely to be caused by your motherboard failure, and the laptop not charging caused by motherboard failure is the most encountered in laptop maintenance; the specific manifestation is that the battery sometimes loses power when not in use, and the power continues when charging. , you can make a judgment by using the manual power port, and the weak soldering of the interface between the battery and the motherboard can also cause a non-charging failure; this can only be checked and repaired at an after-sales service point;

4. Software failure , it may be because the built-in [battery protection mode] is activated, and the power management software will prohibit battery charging and discharging after detecting that the user is using AC power, in order to extend the battery life;