Attaching the MagSafe Battery Pack is a snap. Its compact, intuitive design makes on-the-go charging easy. And its perfectly aligned magnets keep it attached to your iPhone 13, iPhone 13 Pro, iPhone 12 or iPhone 12 Pro - providing safe and reliable wireless charging.The MagSafe Battery Pack can charge even faster when coupled with a 27W or higher charger, like those that ship with MacBook. And when you're in need of a wireless charger, just plug in a Lightning cable for up to 15W of wireless charging.*