Have a Car Question? Ask a Mechanic Online.
I think this link would have what you are looking for, actually at a much better price then I thought they would. I hope this helps you out!
I would go right to the support on the site sent you and ask them these specific question. My guess is that if you are going to run for very long you will need many batteries, but they should be able to answer them with a conclusive answer. I hope you get the info you need, goodluck.