A purported photo of the 5.5-inch iPhone 6's battery on Chinese site Apple Daily [Google Translate] (via Macotakara) alleges that the larger new iPhone could have a capacity of 2,915 mAh. The photo shows the battery carrying an Apple part number of 616-0675 and that it runs at 4.35 volts, although no model number is shown.
Reports have claimed that the final battery capacity for the 4.7-inch model would be 2,100 mAh, so a battery capacity of 2,915 mAh would make sense for a phone less than an inch bigger. It would also put the 5.5-inch iPhone 6's battery closer to the specs of the 5.1-inch Samsung Galaxy S5's 2,800 mAh battery.
Apple will unveil the iPhone 6 at an event on Tuesday, September 9, with the 4.7-inch model likely launching soon after introduction. The event may also introduce the 5.5-inch iPhone 6, but the model could only be released months later as Apple is having some production issues with the device.
Article Link: Apparent Photo of 5.5-Inch iPhone 6 Battery Reveals 2,915 mAh Capacity