Review on Enhance Your Wii U Gaming Experience with Nyko Uboost - Unleash 2X Power for Extended 10 Hour Playtime! by Andrew Schreider

This battery is exactly what I was looking for. It was really easy to install and doubled the gamepad's battery life. It's really great when I have a group of friends to play with and we don't have to tether the gamepad to the wall in the middle of the night. I bought the white version because it was almost half the price, I don't mind the black and white combo. Pros: 1) lasts a long time 2) charges in the stand that came with Wii u 3) easy to install/remove (just a finger tight screw) Cons: 1) has a bright LED that is always on, when the device is in the charging station (orange when charging, blue when full). It's pretty bright and a little distracting, so I put it under the screen. See attached picture. 2) a little heavy, but honestly no one bothered. In a young child, this can lead to faster muscle fatigue.