Wii U GamePad high-capacity battery now available, promises 8

Extend your gaming experience by picking up $32 accessory now available through Nintendo Store in the United States.
Super Mario 3D World is the first multiplayer 3D Mario game for the Wii U where players can choose to play as Mario, Luigi, Princess Peach, or Toad.

Wii U: launch news, our review, and more - Page 2 - The Verge

Off-TV Play - Wikipedia

Nintendo Switch vs. Wii U vs. New Nintendo 3DS XL, How do the specs stack up?

Nintendo Switch Review

Nintendo's Semi-Secret Upgrade to Extend Wii U's Crappy Battery

Nintendo: Wii U GamePad Is The Only Real Innovation This Console Cycle, But We Didn't Showcase It Well Enough

GamePad High Capacity Battery Now Available in North America

Took the plunge on this addition to my Wii U. Feels like a game-changer for the system! : r/wiiu

Nintendo Wii U review - The Verge