Rumor: The foldable iPhone will have a bigger battery than the iPhone 17 Pro Max

With years of experience, foldable phone manufacturers are now trying to reduce the weight and thickness of their devices to make them easier to hold and use. Unfortunately, the biggest problem with this approach is the lack of enough space to accommodate a larger battery, but companies have found a way around this obstacle by using carbon silicon technology. On the other hand, Apple is not expected to use these types of batteries; It is also rumored that the iPhone will have a bigger battery than the iPhone 17 Pro Max. The only problem with this decision is that the device will be thicker and heavier.

Apple is testing a foldable iPhone with a 5400 to 5800 mAh battery

The eSIM version of the iPhone 17 Pro Max uses a 5088 mAh battery, and according to a technology leaker, the foldable iPhone is currently being tested with a 5400-5800 mAh battery. Even if Apple decides to go with the minimum capacity, the battery of its upcoming iPhone will be larger compared to flagships like the Galaxy S25 Ultra and the Galaxy Z Fold 7. The source who shared this information also revealed the battery specifications of the iPhone Air. A separate report stated that the foldable iPhone will look like two iPhone Airs placed side by side when fully opened.

Apple has proven that it can shrink the iPhone Air’s bezel without sacrificing performance and make room for the 3,149 mAh battery, so it’s safe to say that the company can apply the same engineering to the foldable iPhone. Unfortunately, as mentioned above, the two drawbacks of this decision will be increasing the thickness and weight of the device. On the other hand, Apple has no problem with making next year’s iPhones thicker, as the iPhone 18 Pro Max is rumored to be thicker than the previous generation. Having a few millimeters more thickness for a foldable iPhone is a good feature because it will lead to increased battery capacity and battery life.

Apple could also use the extra interior space to fit a larger vapor chamber, which would significantly improve the device’s heat dissipation performance. The exact dimensions of the foldable iPhone have not been shared yet, but a previous rumor suggested that the first foldable iPhone will have a 7.74-inch display and a 5.49-inch front panel. Of course, Apple may change these specifications until the device goes into mass production.