Hi mate, most of the working c5's you see will be using a car battery, the most of them have the C5 Alive wiring kit which is a real step in the right direction, i had a problem with mine when i first got it going, it went about 1/2 mile and stopped working, i talked to Martin, he's the techincal brain of C5 Alive (sorry Karl, i'm not staying your not smart
, but he is
) and i sent both my control box and pod to him, he found and fixed the problem quickly. He can be contacted in the evenings, good luck.
Retro Andy.