1. Metal will shield electromagnetic waves, wireless charging is the transmission of energy through electromagnetic waves, and a big drawback of metal is \"excellent electromagnetic shielding\". If the phone uses a metal back cover, it will inevitably affect the normal work of wireless charging, and the wireless charging function will lose its meaning.
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2. Metal thermal conductivity is strong, with security risks, wireless charger will have part of the energy loss into heat energy at work, and metal thermal conductivity is strong, if the phone temperature is too high when charging, the consequences are unimaginable. Therefore, the wireless chargers on the market now have FOD foreign body detection function. When there is a metal foreign body between the mobile phone and the wireless charger, the wireless charger will sense and power off to prevent the metal foreign body from overheating.
1, whether the mobile phone model supports wireless charging or whether the wireless charger matches.
2. Whether the wireless charger indicator light is displayed normally.
3, mobile phone protective shell and other external factors of wireless charger.
4, wireless charger transmitter power, may also lead to wireless charging can not be used.