According to Huawei's official website, Huawei x3 supports three kinds of power chargers: 66W, 55W, and 40W, while Huawei Mate20Pro can use 88W chargers. Charger is a device used to convert the external power supply into the stable and safe current and voltage power supply required in the device, which can effectively provide a reliable power supply for various internal computing components and make it work normally for a certain period of time.