Hi can anyone help me please. I have a laptop that I would like to use to watch dvds on until our new TV/DVD combi arrives. We're off to the UK from Spain over Christmas on our 1st trip in our MH and the battery on my laptop has just decided to fail. We are not using camp sites going up so can't get MHU (I think that's the right term, still learning!!). Can I use my laptop with just the 12 volt system in the MH?