Food vehicle is a kind of food truck, this could be any food truck with or without power. Usually for some display car, we advised no power, since once place the car in place, usually, we seldom move it to another place.
If there is power, the battery is easily wicked. Once you need move it, you may use forklift to help with.
For food truck used, we used power, since the food truck could be any place for selling food.