How to use Huawei MatePad Pro positive and negative wireless charging function, can take a quick look
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Enable wireless charging lifestyle mode
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Enable wireless reverse charging
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If there is still no charging according to the above method, you need to first understand whether the device supports the Qi wireless charging protocol!
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Here are some devices that support Qi wireless charging protocol, using MatePad Pro can give them wireless charging oh:
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Mate30 series, Mate20 Pro, P30Pro, FreeBuds 3, iPhone 11 series, iPhone XS series, Samsung Note 10 series, Mi 9 Pro, etc.
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Second, the technical principle of wireless charging
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Wireless charging technology uses two physical phenomena, current magnetic effect and electromagnetic induction. Current magnetic effect means that an energized coil will produce a magnetic field, while electromagnetic induction means that an unenergized coil will generate an induced current in a changing magnetic field.
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Wireless charging base and wireless charging mobile phone (or tablet, headset) respectively have a built-in coil, when the wireless charging base is energized, alternating current flows along the coil of the charging base, generating a changing magnetic field.
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This magnetic field direction is perpendicular to the coil plane, and when the mobile phone (or tablet, headset) is close to the wireless charger, the internal coil of the mobile phone will generate induction current in the changing magnetic field to achieve charging.