SideQuesting.com - Using scientific methods, and by asking a Nintendo E3 booth babe, we've determined the Nintendo Wii U's controller to have a battery life of around 9 hours.
10 hours (with screen on) would be really nice if this is true.
As I noted in the article: this is with the screen on, but nothing streaming to it. I'd imagine that the battery life takes a big hit once actual data is sent to it through wifi, and the rumble, audio & accelerometer are in use.
At the same time though... It's not running any video or audio hardware other than what is required to display through wifi.... Which... leads a lot of room for a pretty large battery!(That's what I hope at least)
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