The iPhone 15 Pro Max's USB-C port does not significantly improve its overall charging efficiency compared to the iPhone 14 Pro Max:
Charging Speeds:- While the iPhone 15 Pro Max has a USB-C port that supports the faster USB 3.0 standard, this does not translate to faster charging speeds overall.
- Both the iPhone 15 Pro Max and iPhone 14 Pro Max have similar maximum charging speeds of around 27W.
- In CNET's testing, the iPhone 15 Pro Max charged from 0-55% in 30 minutes, which is only slightly better than the iPhone 14 Pro Max.
PPS Support:- The search results mention that some Android devices like the Google Pixel 8 Pro can take advantage of Programmable Power Supply (PPS) to charge faster when using a PPS-capable charger.
- However, there is no indication that the iPhone 15 Pro Max supports PPS. It appears to use standard USB-C Power Delivery (PD) charging like the iPhone 14 Pro Max.
So in summary, while the USB-C port on the iPhone 15 Pro Max supports the faster USB 3.0 data transfer standard, this does not provide a significant boost to overall charging efficiency compared to the Lightning port on the iPhone 14 Pro Max. The charging speeds are still limited by the maximum 27W charging capability of the iPhones. The switch to USB-C is more about future-proofing and data transfer than dramatically improving charging times.
Citations:[1] https://www.ti.com/document-viewer/lit/html/SSZTAV4
[2] https://paracable.com/blogs/articles/the-ultimate-guide-to-usb-c-charging-everything-you-need-to-know
[3] https://plugable.com/blogs/news/advantages-of-pps-usb-c-power-delivery-charging
[4] https://manhattanproducts.eu/pages/usb-c-pd-charging-everything-you-need-to-know
[5] https://alogic.co/blogs/blog-post/the-difference-between-usb-c-and-usb-3-0-ports