Wireless charging, also known as inductive charging, non-contact inductive charging, is the use of near-field induction, that is, inductive coupling, by the power supply device (charger) to transmit energy to the power device, the device uses the received energy to charge the battery, and at the same time for its own operation. Since the energy is transmitted between the charger and the electrical device by inductive coupling, no wires are connected between the two, so the charger and the electrical device can be exposed without conducting contacts.) As long as the phone is equipped with a wireless receiver, it can be charged without a data cable.
If you want to charge the phone without a charger, you can directly use the charging bank or wireless charging function to charge the phone, the premise is that the phone must support the wireless charging function and have a coil to be used
The solution in the case of no charger is: if the phone supports wireless charging models can be charged without a charger, you only need a wireless power base, and then put the phone flat on the base to start charging.