New iPhone 17 Air leak supposedly shows the super-slim battery Apple may use in this model

• An image of the iPhone 17 Air battery has leaked
• We're expecting a capacity of around 2,900 mAh
• All of the iPhone 17 models should launch in September

We're expecting the iPhone 17 series to launch sometime during September, including the iPhone 17 Air – apparently a replacement for the iPhone 16 Plus. Now a new leak purports to show off the battery that will be fitted inside the Air model.

Images of this battery have been posted by well-known tipster Majin Bu (via 9to5Mac), and it comes enclosed in a steel frame, which matches the iPhone 16 Pro approach. Of particular note is how thin the battery is, from front to back.

According to Bu, the battery capacity is around 2,900 mAh, which is close to the 2,800 mAh figure we've heard from earlier rumors. For comparison, there's a 3,561 mAh battery ...