Charging will be hot, is normal, not dangerous
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1, the current through the conductor, there will certainly be heat.
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2, mobile phone charger, the internal is a semiconductor power tube control of the switching transformer, when charging the mobile phone, through the current is large, there will be a lot of heat generation.
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3, the general charger design is relatively small, the heat of the internal components will be directly exported through the charger shell, the shell is generally plastic, the heat dissipation is relatively slow. There will be heat accumulation. No danger will occur if the temperature does not exceed 80 ° C.
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4, the human body is more sensitive to temperature, more than 40 ° C can obviously feel the heat, more than 60 ° C is very hot feeling. Of course, the heat resistance of electronic components is relatively high (civil components can heat 100 ° C or even 150 ° C). The charger will not be damaged if it heats up to 60℃.
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5, the mobile phone is fully charged, or not charged, as long as a very small current through the charger, at this time is not the same as the obvious hot. If the charger is still hot without charging, it is faulty, stop using it, and send it to the brand for repair after sale.