iFixit has posted its teardown of the sixth-generation iPod touch, revealing a few minor details and confirming Apple’s published specifications for the new device. The most significant new detail is that the device packs in a 3.83 V, 3.99 Wh battery rated at 1043 mAh – a step up from the 3.7 V/3.8 Wh/1030 mAh rated battery included in the last generation. Since Apple advertises the same battery performance specs, the larger battery is likely…