The 18W charger can charge electronic digital devices that support 10W charging. When the charger completes 18W charging, the protocol pairing between the charger and the device is required, and the 18W charging will be output only after the pairing is successful. Support 10W and the charger can not complete the pairing protocol, the charger internal control chip automatically adjusts the output, can charge 10W devices. 18w fast charge can also be charged with 10w, but the charging speed will be greatly reduced.
Yes, now the general fast charge even if it does not support other protocols, it can maintain a 10w charging speed.