With all the excitement over Nintendo's Wii U, there are some minor things you need to consider, as in the 3 to 5 hour battery life of its famed GamePad. That's what was posted by the gaming company. Of course, though, the life depends on a lot of factors, such as brightness of the GamePad. But Nintendo warns that the battery life may be coming up on the shorter end at around 3 hours of battery life. Fortunately, however, is that you can plug in the GamePad and charge it and you can play while it is charging, which makes its shorter battery life seem not so bad.