Photographs of what is described as the iPhone 18 Pro Max battery cell - Image Credit: Yeux1122/NaverA photograph seems to back up claims of the increased battery capacity fo the iPhone 18 Pro Max, weighing in at a massive 5,391mAh. In the latest one to surface, it seems the earlier claims of a super-sized iPhone 18 Pro Max battery may be true. The accompanying post explains that the battery is for the iPhone 18 Pro Max. This is the same capacity as listed for the U.S. version of the iPhone 18 Pro Max in a July 6 leak. As the launch of the iPhone 18 Pro and Pro Max approaches, it is worth remembering that the quantity of leaks will intensify.