iOS 27 Code Leaks Apple's Dual-Battery Foldable iPhone

Apple just leaked its biggest iPhone redesign in years right inside iOS 27. Developers digging through the latest beta found code that explicitly mentions multiple internal batteries. We are talking about genuine parts warnings for individual cells inside a single device. Why would an iPhone need two batteries? Simple: the foldable iPhone Ultra is finally here. Foldable phones split battery capacity across both sides of the hinge for better weight distribution. Apple is reportedly using two different cells—one at 1,921 mAh and another at 2,962 mAh. That gives you a massive 4,883 mAh total capacity to power that huge inner screen all day. iOS 27 is already tracking fold angles and hinge states, meaning mass production is right around the corner. Get ready, because the foldable era for Apple starts this September.