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Hello I own an iPhone X and it has 500 battery cycles and battery health 91%.I have mentioned when I charge my device a heat.My device it’s about 37-78 Celsius , is it normal temperature ?
If your device becomes so hot that it is uncomfortable to touch it is a likely indicator that something is wrong with the device. Phones will tend to be hotter while they are charging due to the extra power coming in, even more so if it is charging wirelessly. If the phone is in a case or on surfaces that prevent them from diffusing heat properly it can cause the phone to heat up more than it would normally.
