Originally Posted by Flybob
If you have a fridge that operates on 12V it is possible to run on 12v when towing if you are aware of the following.
2. Most wiring harnesses do not use heavy enough wire to provide adequate power to the fridge while towing so you may deplete some battery. This is easy to check by measuring 12V line at fridge with TV running and fridge on.
Actually, the best measurement to take is at the camper battery (hooked up, with fridge on DC and TV running). If you are seeing over 13 volts at the battery, you will not discharge the camper battery while driving.
Having spent many years not too far from Norfolk, VA area, I put the fridge on DC when driving. This avoids having to shut down the propane for the tunnels, and restart afterwards. And I have also experienced the flame-out when on propane at highway speeds. The continuous-run fridges in A-frames and PUPs will not restart themselves automatically on propane (travel trailers and some high walls will).
2014 Rockwood A122
2008 Hyundai Entourage (minivan)