Only one connector and some glue keep this monstrous battery in its place—no match for our trusty spudger and plastic opening tool.

With the battery freed, we take a closer look at the Fire's 4.6" tall x 4.3" wide Li-Ion battery.

This battery sure puts out... 16.28 Watt-hours, to be exact. However, due to the size of the Fire, its battery's 3.7 V potential and 4400 mAh capacity don't quite stack up to the specs of the iPad 2 Wi-Fi's battery.