Does The Cable Affect Fast Charging. The 2018 iPhones included a slow 5W USB power adapter. For example if you are using a 27W charger with a smartphone that has a maximum charging speed of 18W the phone will charge at 18W.

Does Fast Charging Damage Batteries. The latest iPhone 11. Just like all fast charging standards USB PD implements a data protocol to communicate between the charger and phone.
But in the case of the Asus the 12 and the 36 are the same.
For fast charging you need a Smartphone with Fast Charging capability and a Fast Charger with a Fast Charging Cable. This negotiates the maximum tolerable power delivery for both the charger. The latest iPhone 11. Yes it does affect the charging speed.
