Wireless charging heat is a normal phenomenon when charging, but if it is hot, pay attention to whether there is a problem with product quality. The original wireless charger does not rule out possible faults. In addition, when charging, pay attention to whether the power of the wireless charger matches the mobile phone phase.
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The first way is used to achieve wireless charging, but the implementation process also encounters technical problems: Due to the special structure of the mobile phone, a battery must be installed in the mobile phone, which is actually the nightmare of the development of wireless charging technology - when the magnetic field emitted by the transmitter coil passes through the battery, the metal inside the battery will generate induction current, usually we call this \"eddy current\
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Therefore, in order to achieve wireless charging of the mobile phone, a \"metal barrier\" device must be placed between the power receiving coil and the mobile phone battery to block the magnetic field line and avoid the magnetic field line reaching the battery. The usual technique is to use a high permeability ferrite for this \"metal-isolating\" device.