I was playing around on my hacked out Wii U on just the gamepad while watching some football on TV and I got to thinking. There should be a rechargeable battery pack for just the Wii U system so they it can be powered anywhere seven without an outlet. That way you can carry it with you in a carrying case or backpack, and just pull out the gamepad to play a wide selection of games, giving more of a portable experience to the system. Yet I looked and it doesn't seem such a product exists. Has anyone seen anything like this? I'd love to be able to do this.