There may be several reasons for a hot phone charger:
1. Long term charging: Long term charging can cause the internal components of the charger to overheat, resulting in heating.
2. Excessive power of the charger: Choosing a charger with excessive power beyond the range of the phone can also easily cause the charger to generate heat.
3. Poor quality of chargers: There are some counterfeit and shoddy chargers in the market, which use materials and internal structures that do not meet standards and are prone to generating heat, even causing damage to the phone.
4. Unstable power supply voltage: If the power supply voltage used is not stable, it will cause the internal transformer of the charger to overload and cause overheating.
5. No-load charging: When the phone is not connected to a charger, the charger still works when powered on, which can cause the internal components of the charger to overheat and cause heating.
To avoid the above issues, high-quality chargers should be selected, do not charge over time, unplug when not in use, and pay attention to checking the voltage stability of the power supply.
