The Ozone 3K could be the iPhone Air battery pack you’ve been waiting for

• The Ozone 3K and Ozone 5K are billed as the world’s thinnest magnetic power banks
• At just 4.98mm thick, the Ozone 3K is even thinner than the iPhone Air
• Currently these power banks are on Kickstarter

While most MagSafe battery packs will work with the iPhone Air, due to its differing design to other iPhones, they won’t necessarily fit perfectly – other than the few that are designed specifically for Apple’s super slim smartphone. But even those designed for it can be a bit chunky, which isn’t ideal when the whole point of this phone is to be thin. However, a new battery pack addresses that.

Dubbed the Ozone 3K, this is just 4.98mm thick, which according to Kopplen (the company behind it) makes it the world’s thinnest magnetic power bank. While that’s not easy to verify, it’s certainly slimmer than the roughly 7.7mm thick official iPhone Air MagSafe Battery, or the similarly thick Anker Nano Power Bank. And it’s also thinner than the 5.6mm iPhone Air itself.

Of course, being so slim the Ozone 3K doesn’t have a huge capacity, with its 3,000mAh of power delivering a 62% charge to the iPhone Air, though there is also an Ozone 5K, which can give it a full charge, but comes in at a thicker 6.49mm.