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

so, my take is that for what you need, whatever type of 12V battery you have been using has served you well, and unless your use pattern changes significantly no reason to change battery types.

6V= 100's or even thousands of discharge cycles to 50% SOC or less
limited high current capability
generally higher cost than equal 12V system
often longer life in number of years

most 12V = lower number of discharge cycles even at 50%
high current capability for things like microwave oven etc.
generally lower cost, especially when you only need One 12V battery