When the mobile phone is charging, the automatic power off, the reasons are generally several: 1, the charging control circuit is faulty; 2, the charger is faulty; 3, poor interface contact; 4, the battery performance is close to failure.
According to the phenomenon you described, there are only two reasons: 1 is the charging head is broken (whether it is the original or it brand, the charging head is used inside the resistance, capacitor step-down rectification, and then voltage regulation into 5V power supply, the advantage is small size and large current, the current can reach 1-1.5A; The disadvantage is that the performance is not good, the voltage is unstable, and if the capacitor breakdown is possible to damage the phone); 2 is that the battery has failed, has not reached the nominal voltage and capacity.
You can verify that the method is to plug the phone into the computer or use the switching power charger (that is, the old big charger with USB interface) on the charge, if the power is constantly, then it is the problem of the original charger, on the contrary, if the fault is still, then the battery has failed.
It is recommended that when charging the mobile phone, you should try to choose a switching power type charger, but the charging current should be controlled below 0.5A, so that the phone can avoid hot charging, but also to extend the life of the battery.
A: Huawei mate40pro charging always power off may be the phone's charging unit is faulty, it is recommended to go to Huawei official after-sales store for testing and repair.
The Huawei Mate 40 Pro is a smartphone released by Huawei on October 22, 2020.
Huawei Mate 40 Pro is equipped with a 12 megapixel stealth telephoto camera, which supports 5 times optical zoom and 10 times hybrid zoom. And 50 times digital zoom, 4-in-1 pixel fusion can be aggregated into an equivalent 2.44 micron super pixel, further improving picture quality, and full pixel octagon focus further improves focusing speed and accuracy.