iPhone 18 Pro Max’s battery is so big Apple had to add this new feature to iOS 27

The iPhone 18 Pro Max offers a huge jump in battery life, partly because the battery itself is physically larger. In a new support document published today, Apple says the iPhone 18 Pro Max has such a big battery that it has additional shipping requirements. IPhone 18 Pro Max’s battery is so big Apple had to add this new feature to iOS 27.

MacOS 27: Siri AI top features – Apple’s assistant finally comes to life [Video] Jeff Benjamin Sep 17 2026.