Adrian Kingsley-Hughes:

Between the release of the iPad 2 last year and the announcement of the new iPad yesterday, Apple has nearly doubled the capacity of the battery, taking it from 25Wh to a massive 42Wh. Measured in milliamps this boosts the battery from 6944 mAh to a monstrous 11,666 mAh.

I can’t wait for those efficiency gains to spill over in laptops and the iPhone — that should be great.

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