20W wireless backcharging is a wireless charging technology, which can make the power transmission of the device supporting the technology bidirectional, that is, it can not only receive wireless charging, but also transmit the electrical energy in the device to other devices for charging.
Through 20W wireless backcharging technology, wireless charging interconnection between devices can be realized, and the convenience and flexibility of equipment use can be improved.
For example, putting a phone that supports 20W wireless backcharging on another device can charge the phone through wireless transmission, and it can also transfer the power in the phone to other devices to charge. This technology has a wide application prospect in the field of wireless charging.