Okay so first that thing just brought back memories.........
We need a link to where it came from. I remember as a kid strapping a radio to my bike handle bars jammin to the Beasties and all that fantastic glam rock!
Nice idea on the batteries, hopefully it turns out well!
Once done, a complete and detailed materials list and complete instructions on how to ''go ghetto lipo'' so that idiots like myself can understand will be required. Thank you