An alleged photo leak indicates the iPhone 18 Pro Max will use a larger battery than the iPhone 17 Pro Max. The report describes battery-cell packaging for a Chinese iPhone 18 Pro Max variant that lists a capacity of 5,391 mAh, compared with 4,823 mAh for the equivalent iPhone 17 Pro Max battery.
The leak is discussed as part of early reporting ahead of the iPhone 18 Pro lineup’s release. MacRumors says the same 5,391 mAh figure appeared in a regulatory database last month, increasing confidence that the number is accurate. It also claims the U.S. model, which is eSIM-only and lacks a SIM card tray, would have a larger 5,567 mAh capacity. AppleInsider focuses on the newly shared Naver photograph, saying it appears to support earlier claims by showing the battery from multiple angles.
Both outlets present the information as unconfirmed, based on leaks and images. The context for differing capacities across regions is Apple’s use of SIM trays in some markets and eSIM-only designs in others, affecting the available space inside the device.
