The Wii U GamePad’s battery life is not very long off of a single charge.  Many Wii U users probably get a maximum of 5 hours if you are lucky.  The good news is that the high capacity battery for the GamePad, which was initially only released in Japan and then in Europe, is now available at Nintendo’s Online Store for North American Wii U owners!  The high capacity GamePad battery is selling for $32.00 and will give the GamePad up to 8 hours of use instead of just 3-5 hours.

Wii U GamePad High Cap Battery

Higher capacity for longer play time!

This battery offers up to 8 hours of use and can be easily installed using a screwdriver and included instructions.

Battery Capacity: 2550mAh / 9.2 Wh (offers up to 8 hours of use, compared to 3–5 hours with standard Wii U GamePad Battery) Battery Voltage: 3.6V

Please note: Battery duration is an approximation. It can vary according to the use of the Wii U GamePad, usage of wireless communications, the ambient temperature, and the brightness setting of the screen.