I know the Mts 400 would work little to no modification but I'm hoping to get the Mts 250in a couple months so I can have a portable unit that doesn't require my trailblazer for working in buildings and restaurants. Also the 400 is a bit over my budget now right now. Those darn children never seem to stop growing and they always want more food and clothes��. I was just hoping there was some simple and easy way to power the feeder that I wasn't seeing. Thanks for the input guys! Guess I'll just have to use the Mts 250 the way it was designed.