While MagSafe accessories typically cannot receive power from the iPhone, there is one exception to that rule – Apple’s official MagSafe battery pack. All modern iPhones, starting with the iPhone 12, can reverse wireless charge the MagSafe battery pack when plugged into a power socket via a Lightning cable.
As part of this arrangement, the iPhone battery gets charged via the wired connection, while an attached MagSafe battery pack gets wirelessly charged by the iPhone. So while Apple is yet to officially introduce full reverse wireless charging support for its iPhone lineup, the devices do technically support the feature, albeit in a very limited way.
While charging one single accessory may not look like an important use case for reverse wireless charging, Apple provided a couple of examples of when this feature could come in handy. According to the company, this arrangement can be used when people need to connect their iPhone to another device while charging, like when using wired CarPlay or transferring photos to a Mac. Based on an FCC filing from 2020, the iPhone 12 is capable of supplying 5W of wireless power to the MagSafe battery pack, and there’s no indication that the speed has increased with the iPhone 14.