this is what i plan on getting. I'm not sure if that's what you meant but it sounds similar. I've actually never used one but im going to be doing traveling work for several months and trying to prepare so i can not have to eat out and buy drinks etc at the gas stations all day. It gets too expensive. I was also going to get a food warmer (car style with low watts). I'll also have to get a cheap inverter to charge the battery. That way while i drive it charges but when i stop to work a job it won't kill my truck