1pc 3.7V 3600mAh Rechargeable Li ion Battery Pack for Nintendo Wii U Gamepad Battery for Wii U Wiiu GamePad Controller Joystick|Batteries| - AliExpress
Nintendo Support: How to Remove, Reseat, or Replace the Battery in a Wii U GamePad
New Original OEM Nintendo WUP-013 Wii U Gamepad Controller Battery 2550mAh | eBay
I bought the extended Gamepad battery. I see Nintendo planned a spot for it all along. : r/wiiu
KMD 3000mAh Rechargeable Battery For Nintendo Wii U Pro Controller GamePad | Walmart Canada
New Wii U Gamepad Battery Lasts A Definitive 5 To 8 Hours - My Nintendo News