When my iPhone battery needs a quick boost, the Twelve South PowerCapsule is ready to keep it going for the rest of the day. It conveniently clings to the handset magnetically so no cable is needed.
As a bonus, the accessory looks great. It closely matches the look of my iPhone 17. And it fits easily in a pocket.
I tested the PowerCapsule in my home and on the go. Here’s how it stands up in real-world use.
![This great-looking MagSafe iPhone battery is built for life on the go [Review] ★★★★☆ Twelve South PowerCapsule review](https://www.cultofmac.com/wp-content/uploads/2026/03/Twelve-South-PowerCapsule_review_02-1020x574.jpg.webp)