Mobile phone wireless fast charge 30w, you can use 120w charging head input, 30w output, wireless charging board. Mobile phone support fast charge, compatible charger, charger will not be harmful, mobile phone is not harmful.
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30w wireless fast charge with 120w charging head, is definitely not possible, 120w charging head power is too large, will make the battery in the charging process, voltage and current overload, resulting in increased heat, prone to short circuit, and even security risks.