Nintendo Wii U GamePad Battery: Replacement Part #ARR-002
A Wii U That Is Both Computer And Console. | Hackaday
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Cameron Sino 5200mah Game Console Battery Wup-003 For Nintendo Wii U Gamepad Wup-003 - Digital Batteries - AliExpress
The Wii U is the poster child of why proprietary rechargeable batteries suck. - Wii U
Nintendo Wii U GamePad Battery: Replacement Part #ARR-002
I bought the extended Gamepad battery. I see Nintendo planned a spot for it all along. : r/wiiu
Guide to the Best Wii U Replacement GamePad Battery - Nerd Techy