Apple's MagSafe battery pack for iPhones has a hidden feature users may find useful.
September 12, 2025
Apple's new MagSafe Battery Pack for the iPhone Air can also power up your AirPods, Apple Watch, or even a tiny USB gadget
The iPhone Air MagSafe Battery must have enough power for this to work. You can then use a USB-C cable to connect the battery pack to the device you wish to charge, and charging should begin. In theory, the small device could even be a fan that runs on USB power.