Wii U GamePad Large Battery Shell
thingiverse
This is a shell for the Wii U GamePad battery. It hold a little lose, but it works perfectly. It is designed for a 2500mAh battery, but I've included the 3D Models so if you wish to modify it to work with a 3000mAh battery you could.
Download Model from thingiverse
With this file you will be able to print Wii U GamePad Large Battery Shell with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Wii U GamePad Large Battery Shell.