Among the parts that have been leaking from the next generation iPhone, the battery is next. 9to5Mac has posted pictures of the new battery, compared to the current battery in the iPhone 4S. The result? A slight increase in capacity.

The increase goes from 3.7V/1430mAH/53Whr to 3.8V/1440mAh/5.45Whr in the next generation iPhone. No dimensions to compare the battery size are provided though.

Along with the increase in battery capacity, the new battery also features a new voltage of 3.8. This is up slightly from 3.7 on both the iPhone 4S and iPhone 4. The new battery also has an increased watts-per-hour measurement (wHr), 5.45 wHr, which is an increase from 5.25 and 5.3 on the iPhone 4 and iPhone 4S, respectively. This is a proportional increase due to the increase from 1430 to 1440 mAh.

According to the battery’s labeling, it appears that it was produced in June, 2012. That’s right on schedule for next-generation iPhone component manufacturing.

The next generation iPhone is rumored to use LTE, which is notorious for using up a lot of battery, because of the power the network uses. However, the jump in capacity on the battery doesn’t appear to be very big. The next generation iPhone is also believed to be a thinner, but taller device. The increased height may make up for the reduction in thickness, which is this leak is true, may be the reason Apple hasn’t been able to increase the battery capacity on the new iPhone.

[via MacRumors]