2 12 volt batterys or 2 6 volt

brulaz wrote:
According to Trojan, their T-1275 is a "12V Deep-Cycle Battery", and the SCS225 is a "12V Marine/RV Deep-Cycle Battery".

SoundGuy wrote:
While all this forum theorizing makes for interesting reading it seems to me that if the goal is a battery designed for recreational vehicle application one would logically turn to a manufacturer that designs and builds these products for the most appropriate recommendation.

brulaz wrote:
Some RVer's are like you and rarely boondock. Trojan's recommendations for a Marine/RV would be fine. The lower Cycle life is fine, and they have the advantage of less V drop under load.

But others are full-timers and boondock a lot. They cannot afford the low cycle life of a marine battery. And make do with the V drop perhaps by adding more non-marine batteries.

I'm somewhere in between and can't decide. :)

According to your profile you're here in Ontario as I am and I'm sure you're as aware that the idea of "boondocking" is just about an impossibility, certainly here in S Ontario where virtually every square inch of land is owned by someone who has no interest in having you on their land. Yes, the Ontario government does run a limited boondocking program in some areas in N Ontario but reality is it's little known and very few actually take advantage of the program ... have you? The reality is that the only connection to "boondocking" for the vast majority of RV owners here in Ontario is when some might camp on a non-electric site in the provincial park, federal park, conservation park systems, etc. That's hardly boondocking and it certainly can't be "full time" as all these park systems have limits on length of stay, 23 days max in the provincial park system as an example. As you're probably also aware electric campsites in any of these park systems are always the first to go, often being reserved months in advance, meaning that many of those you see dry camping aren't necessarily doing so by choice but rather by default because it's the only site they could get. Anytime the Ontario government decides to add a new park to the system or upgrade existing facilities additional campsites are always electric for one simple reason - they know they can sell every one of them each summer while dry sites remain empty. Simply put, the vast majority of recreational vehicle owners aren't interested in camping without electricity and as such your estimation of those that do so willingly grossly exaggerates reality. Of course if you yourself dry camp exclusively that would bear on your decision as to which battery type would best suit your needs but the vast majority will simply never realize full benefit of repeated deep discharging from a pair of 6 volt GC-2s. Whether you are one of those who would only you can determine ... but it won't be "boondocking" here in Ontario that will be the cause.