4AA Battery Pack
thingiverse
Just need a pack of M4 x 1/2 inch bolts with 8 threads and some flexible copper wire.
Download Model from thingiverse
With this file you will be able to print 4AA Battery Pack 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 4AA Battery Pack.