Apple promised to maintain autonomy with the new iPad , but the reality is that the screen Retinal Display , the new graph with four cores, and connectivity LTE , consume more energy than what we had so far in an iPad 2, so have had to significantly increase the size of the battery.
The iPad 2 6.944mAh has a battery with an autonomy of 10 hours. To keep this figure, the new iPad battery increases by 70% , with an estimated 11.666mAh, and therefore larger than the thickness of the device determines, rising slightly to 9.4 millimeters , slightly increasing the weight.
We can see the battery 42.5Wh compared to other branded devices courtesy of Anandtech people, proving to be even greater than that of a MacBook Air last year.
It will be interesting to see what will happen with the new iPad , with connectivity supposedly LTE , higher resolution, and therefore more demanding graphics, do you also mean more battery? In the competition does not stop appearing Android phones with HD resolution (1280 x 720 pixels), large screens and multi-core processors, are required larger battery?