Yes, you can use the MagSafe battery (1460 mAh, 15 W, 11.13 Wh) with your iPhone 15 Pro and iPhone 17 Pro Max. Users have reported it works fine with the iPhone 15 Pro Max despite it not being officially listed in the compatibility, and it is designed to attach magnetically and charge wirelessly. However, Apple officially lists compatibility only up to the iPhone 14 series, so for the iPhone 17 Pro Max, there is no official confirmation, but the MagSafe technology and magnetic alignment suggest it should work similarly.