Since when did your Apple products require batteries? With The Apple Battery Charger ($30) your Magic TrackPad— which incidentally depends on AA batteries is going to provide you with juice for the next decade. The new kit offers six NiMH batteries that consume 10 times less electricity than the competition — about 30 milliwatts once its charge cycle is finished (as opposed to an average 315 milliwatts) and should last you an astonishing 10years. The saving may pale in comparison to lets say, turning a light off, but you can do your part by not buying disposables. (Thanks, Kevin)