RJsfishin wrote:
AGM,....more expensive w/ less capacity,....don't know why I would want one.
Rich ... I'm not sure what "less capacity" you are referrring to?
My twin Group 31 12 volt AGMs have 115 AH each, for a total of 230 AH - about the same total capacity as a couple of the common size GC 6 volt liquid acid batteries used in so many RVs. Lifeline even has a Group 31 12V AGM battery model - of about the same cubic inch and form factor size as mine - that are 125 AH each, for a total of 250 AH when used two at a time.
As far as I can see, the only thing "wrong" with quality deep cycle AGM batteries as compared to common GC batteries is the cost of the AGM batteries. Of course those extra dollars are providing set-it-and-forget-it RV battery service.