Originally Posted by retiredcamper47

I went to a website called rvadvice.com and checked out some of the q & a's about running a trailer without a 12v battery installed. The answers were the same as what Jack, PopRichie, and RichR had given. The one answer said that "it would eventually cause the converter to fail and is hard on the control boards for your appliances". The other answer said to "think about the battery as a filter for the electrical system's 12v side". Hope this helps to clear things up.

Bob

Originally Posted by firemarshal

Thanks to you guys for digging into this. My frig has lasted over 20 years and I'd like to make it last a lot longer... Will use the time to defrost my freezer when I'm fishing...

Originally Posted by Atlee

If your fridge is 20 years old, it doesn't have an electronic control board. The fridge in my current 1996 model B does not have an electronic control board. It will use DC when traveling, but the DC can be completely disconnected, and the AC or LP part will work just fine.