Because the mate30 uses Huawei wireless charging technology, it is mainly achieved by using electromagnetic induction. When the coil of the charging base is energized, it generates a magnetic field around it, and the coil in the mobile phone senses the magnetic field and generates an inductive current, and then charges the battery through a special wireless charging circuit.
By using the same electromagnetic induction principle, it has wireless reverse charging function. On a business trip, you can also use Mate 30 series mobile phones to charge Qi certified electric toothbrushes, wireless Bluetooth headphones and even friends' mobile phones to solve emergency needs.