Fault analysis: the battery heats up quickly when charging, which is generally caused by the short circuit of the battery itself, the voltage mismatch of the charger and the short circuit of the charging circuit.
Maintenance method: Check the battery of the notebook computer and find that it is the original battery, and there is nothing unusual. Check the adapter of the notebook computer again, and find that the adapter was later, and the voltage is different from the original. After replacing the original adapter, the problem of fast battery heating did not appear again.