With the transition to USB-C, the iPhone 15 models could get faster charging speeds up to 35W. 9to5Mac says that it has heard from industry sources that "at least some" of the iPhone 15 models are able to charge at this higher wattage.
At the current time, the iPhone 14 models can charge at a maximum of around 27W, with the Pro models able to charge a bit faster. An increase to 35W would speed up charging times.
Apple does not sell a power adapter with the iPhone anymore, but the company recommends a 20W+ charger for fast charging purposes right now. If the iPhone 15 models support up to 35W charging, Apple could start recommending its 30W MacBook Air charger or its 35W Dual USB-C charger for maximum charging speed.
Earlier this year, Apple analyst Ming-Chi Kuo said that the iPhone 15 models would support faster charging speeds due to the transition to USB-C. He said that the faster speeds would be available with MFi-certified USB-C chargers, including the 20W power adapter.
There have been rumors that Apple will limit faster charging speeds to MFi-certified cables and chargers, and it is also possible that the fastest charging speeds could be reserved for the iPhone 15 Pro models.
Top Rated Comments
I doubt my current MacBook USB-C cable and charger is equipped with MFi chip and it seems absurd not being able to fully use my MacBook original charger and cable (which works just fine with my iPad Pro) for the new iPhone.
iPhone 12 Pro - 24W
iPhone 13 Pro - 27W
iPhone 14 Pro - 29W
It’s no coincidence some people with iPhone 14 Pro are reporting poor battery health after a year with 30W chargers.
Edit: As USB-C speeds increase, so does the phone, and that is the progression of technology. But from phone to phone in the same year is just nickel and diming.
Edit 2: There should be a software setting to limit charging if someone wants to charge slower than the max capable.