Forum Discussion
Huntindog
Feb 25, 2013Explorer
pnichols wrote:
Troll or not, the scenario the OP talked about is similar to my situation.
When our RV was only about eight months old it's two wet cell Group 24 12V marine/starting batteries failed - probably from sitting on the dealer's lot too much in a discharged condition.
The dealer offered to replace them on warranty with two wet cell 6V golf cart batteries. I requested that instead he replace them with two dry cell (AGM) Group 29 12V deep cycle batteries.
This has been a great RV battery set for us that has never let us down so far and they're still going strong after more than six years of use. They'll power the furnace all night - in addition to a CPAP machine - for at least two nights plus power the RV for the two days, before I recharge them from about a 50% state of discharge.
The "6V versus 12V" battery issue should be constrained to a "6V deep cylce versus 12V deep cycle" battery comparison. Most RV discussions on this are comparing 6V deep cycle ("golf cart") battery performance to the commonly available 12V marine/starting battery performance. Comparing 6V deep cycle batteries to 12V marine/starting batteries is not an apples-to-apples comparison, even if the comparison is between these two differing battery technologies each with about the same overall amp hour capacities.
Well I am glad that your dealer GAVE you a couple of large AGM (group 29)batteries.. Not so sure that your assumption on the early demise of your Group 24 hybrids.
I usually only got a year out of them when I used them. So 8 months is not out of the range that I would expect depending on use/care etc.
You do realize that the reason for the 6 volt vs 12 volt marine starting batteries comes up so often, right?
In is because that is the most widely available and dealer installed type...Most always in a group 24 size as that is what fits in the trays of MOST TTs....And the 6 volt batteries also FIT in the same space.
AND the COST is not that much more.
True 12 volt DEEP CYCLE batteries are exspensive and rare.
While your AGMs do have some advantages over any flooded wet cell,
COST is NOT one of them. (If you have to buy them)
And of course group 31 AGMs won't fit in the trays of most TTs.
Guess it depends on whether you comparing apples,oranges, or watermelons.:)
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