Add another battery?

facory wrote:
I have realized that the fridge can really chew up the batteries, even on gas. There is a switch that operates a 12 volt circuit for keeping condensation from forming around the door jam when it's real humid. I was getting shortchanged on battery life (dual batteries) until I turned the switch off. My battery life more than doubled. I have never really needed to run the condensation control so it made no difference in the performance of the fridge. My switch is located on the upper part of the door jam. If you find yours turn it off and see if that improves your battery life.

I had the same problem. In summer, without using the furnace, I was getting about 3 days use from my battery even though I was not using lights or the water pump. The culprit turned out to be the fridge, in particular that heater to prevent condensation. Unfortunately my fridge did not have a factory switch to power down the heater. I solved the problem by adding my own switch. Now I can get about 7 days out of my battery if I don't use lights or water pump. Using the lights and pump very sparingly, I can get about 6 days out of the battery.