Can I use a 30W charger for iPhone 12 Pro? Or 20W?
Which charger to use for fast charging
iPhone 12 Pro Max
You will get the fastest charging with the Apple 20 watt USB-C charger. You can use a higher power charger, but it won’t be any faster. The charge rate is controlled by the phone and it has an upper limit to charging rate to keep the phone’s operating temperature within range.