Educate me on 12 volt batteries

Guy Roan wrote:
Off and on I see posts regarding changing out the 12 volt battery to two 6 volt ones.
In the past thirty years I have had three trailers and never had a problem with the single 12 volt battery so could someone please explain the reason for swapping to two 6 volt ones.

Guy

If you stay at parks with shore power, even a cheap automotive battery will do just fine. It would actually be silly to upgrade as you will never use the advantages.

If you are going to be camping away from shore power (and generator), an upgraded battery bank means you don't have to be paranoid about running out of power.