You can easily attach the external MagSafe battery. It’s compact and intuitive, and makes charging on the go very easy. And it has perfectly aligned magnets that attach to the iPhone 12 or iPhone 12 Pro - for safe and reliable wireless charging. The external MagSafe battery charges even faster when you combine it with a 27W charger or faster - like that of the MacBook. And if you need a wireless charger, just plug it in with a Lightning cable for wireless charging up to 15W.