[JERRY2KONE]

I would think that the best way is to have a cutout area in the sides of the body, with custom trays that allow for side battery insertion. Using some kind of soft liner to compress the battery as you install it(making it snug), and finally having the snap-type locking mechanism double as some kind of snap connector. Say with a slight push or pull it opens up and the battery slides out, and then a new one slides right in. Finishing with a snapping connector plug that holds the battery in place.. I agree that the battery box should be a custom-made derlin or even thin aluminum battery box. It is just a matter of time before it is presented to us from the major manufacturers, but if you could mod something up as a prototype that would be a good start. Good luck and keep us informed of your progress.