Heat is a common phenomenon when charging mobile phones, especially support fast charging, super fast charging mobile phones, when charging, the current and voltage are larger, so the temperature will be higher than ordinary charging.
If you are conducting wireless charging, because there will be energy loss in the wireless transmission process, and then generate a certain amount of heat, there will be a phenomenon of heat when wireless charging, this is normal.
It is normal for the newly bought mobile phone to charge hot, because the current mobile phone supports fast charging, and the voltage will be higher, so it is normal for the mobile phone to be hot, and the chip will be easy to hot in the summer