While the pictures of the battery of the iPhone 5 are available on the internet for weeks, ResQ, a repairer of Apple hardware, managed to get one and compares with that of the iPhone 4s.
The new battery logically adopt a format more elongated relative to that of the iPhone 4S, about 1.2 cm. It is also thinner than 2 mm and a little lighter at 22.7 grams 27.2 grams against
the iPhone 4S. The connector that connects to the device is no longer in the same place and it is completely different.
The iPhone 5 will have a larger screen and more powerful Soc, it is required to have a better diet. The battery capacity is slightly higher at 3.8V/5.45Wh 3.7V/5.3Whr instead of the iPhone 4s.