Reverse charging of the charging treasure depends on whether the mobile phone and the charging treasure support wireless charging, or whether the data cable is connected to the charging treasure, but the efficiency will be relatively low, and it is not recommended to use in ordinary words.
Wireless reverse charging, that is, the mobile phone as a wireless charging base, to support wireless charging devices (such as: watches, bracelets, mobile phones, etc.) to charge. The use method and precautions of wireless reverse charging are as follows