The website ChargerLAB has tested the iPhone 17 Pro Max’s USB-C charging speeds with a variety of Apple’s chargers, from 18W to 140W.

iPhone 17 Pro USB C Port
The device reached a peak charging speed of around 36W with the following Apple chargers:

  • 40W Dynamic Power Adapter with 60W Max
  • 61W USB-C Power Adapter
  • 67W USB-C Power Adapter
  • 70W USB-C Power Adapter
  • 96W USB-C Power Adapter
  • 140W USB-C Power Adapter

For comparison, the iPhone 16 Pro Max can reach a peak charging speed of around 30W, so the iPhone 17 Pro Max can charge a…