Apple has launched the MagSafe Battery Pack, for wireless charging of the iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max and iPhone 12 mini. It attaches itself to the back of the devices through magnets. It’s currently available for pre-order through the Apple website.
The MagSafe Battery Pack has a Lightning connector, and hence it can be quickly charged with a Lightning to USB cable and a 20W USB power adapter. (Lower-wattage adapters will work, but more slowly.) After its initial charge, powering up an iPhone will automatically charge the battery pack too, so long as it’s attached.
Functionally, the wireless battery works as if it were a part of a factory-original iPhone 12. There’s no setup required, it just snaps on and starts working. It may not be compatible with all iPhone cases, but Apple does guarantee the MagSafe Battery Pack is compatible with its own MagSafe line of iPhone 12 cases.