Wireless Charging Method, Apparatus, System, and Device to be Charged

The present disclosure provides a wireless charging method, device, and system, and a device to be charged. The method includes: a wireless charging device receiving a request instruction sent by a device to be charged, the request instruction being configured to request the wireless charging device to provide a type of a power supply device to the device to be charged; the wireless charging device sending the type of power supply device identified by the wireless charging device to the device to be charged according to the request instruction. The type of power supply device including a fast charging type and a normal type, a maximum output power provided by the fast charging power supply device is greater than or equal to a preset value, and a maximum output power provided by the normal power supply device is less than the preset value.