It magnetically attaches to the back of iPhone 12 and later, except iPhone 16e and SE. It also charges any USB-C device by cable.

Through most thin cases. Thick, textured or metal-backed cases will weaken or block the magnetic hold.

Yes, in your carry-on. Carry-on only. Under the 100 Wh airline limit. Never pack it in checked luggage, and check your airline’s rules before you fly.

That’s what it’s for. It’s thin enough that the phone still feels like a phone.

Orders ship from the US within 3–5 business days. That’s the time before your order leaves us. Delivery time with the carrier comes after that, and you’ll get a tracking link when it ships. US shipping is $6.95 flat, anywhere in the US. We ship to US addresses only for now.

Return it within 30 days of delivery. If it’s faulty, we cover the return postage. Otherwise, return postage is on you.

12 months from delivery, against manufacturing defects.

It’s a lithium battery. Treat it like one:

• Don’t puncture, crush, take apart or burn it.
• Keep it out of sustained high heat, like a hot car or direct sun.
• Stop using it if it swells, deforms, discolours or smells.
• Charge it where you can see it.
• Recycle it at a battery collection point. Don’t put it in household trash.
• Carry-on only, never checked luggage.