It is normal for the power adapter to heat up. The conversion efficiency of the power adapter to the power supply can only reach about 75-85 at present. When the voltage is converted, some of the energy is lost. Except for a small part of the loss in the form of waves, most of them are emitted in the form of heat. . The greater the power of the power adapter, the more energy is lost, and the heat generated by the power supply is greater.At present, the power adapters on the market are sealed with fire-resistant and high-temperature plastics, and the heat generated inside is mainly transmitted through the plastic casing. Therefore, the surface temperature of the power adapter is still quite high, and the maximum temperature may even reach about seventy degrees.

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