Hi guys, this might be a foolish question but I am wondering if there are any legitimate battery options for making the Mini portable? I don't have much understanding of battery tech, but simply I was wondering if there is a way to set up a Mini & monitor at a client meeting running on a battery supply? Battery life would only need to last ~2hrs. I work 99.999% on a desktop and just need a portable option once in a blue moon so I'm trying to avoid buying a MBP as I already own 2 desktops. Anyone knowledgeable? Dumb question? 