Agreed. iphone 11pro max support 20w fast charge, apple official 20w charging head mark, using Apple USB-C cable and 20w charging power adapter for iPhone 8 and updated models charging, want to buy 20w fast charge do not worry, but it is recommended to use the original 18w charging head will be better. Apple says the phone can charge up to 20w.
The Apple 11promax can be quickly charged with 20 watts.
However, the official standard is 18 watts fast charge, and according to the PD fast charge agreement, the actual power of 20 watts fast charge is also 18 watts.