Apple’s new iPads — the iPad Air and iPad mini with Retina display — have quietly undergone significant battery changes from their prior incarnations, iLounge has learned. The iPad Air actually has a much smaller battery than the fourth-generation iPad — 32.4-Watt-hours compared to the previous model’s 42.5-Watt-hours; as a result, the battery should recharge faster, coming closer to the four-hour refueling times required from the…
