What are the common faults of Dayi electric wrench that can't be charged?

The common faults of electric wrenches can't be charged, which are mostly caused by battery aging or motherboard circuit failure. We suggest the following investigations:

1, restore the factory settings of the mobile phone.

2. If it still doesn't work, replace the power cord for testing.

3. If it is still not good, it is mostly a problem with the motherboard circuit. It is recommended to send it for repair and after-sales inspection and maintenance.