Yet another battery question

Are all Interstate batteries warranted (pro rata) for 100 months as FoMoCo's are? If so, my (2) Interstate house batteries are 7 years old. So that's still 16 months of pro rata credit due on trading up with Interstates.

David,

Well, this 12V Group 31 115AH AGM Fullriver battery (two of which are in our RV) weighs 73.2 lbs: http://www.fullriverbattery.com/product/batteries/DC115-12

And, this 12V Group 31 125AH AGM Lifeline battery weighs 74 lbs: http://lifelinebatteries.com/products/marine-batteries/gpl-31xt/

Which means that the two batteries probably use very close to the same volume of lead.

Which in turn means that the two probably have either -> very close to the same thickness of plates, or if not -> that one of them has enough higher quantity of thin plates (Fullriver?) so as to about equal in weight the other's (Lifeline?) lower quantity of thick plates.

:h

David ... are you referring to batteries copied and built in China ... or batteries built in China but designed and manufacturing-controlled from other places?

Askem to drop their shorts and moonya with their positive plate thickness.

Is anyone here using (2) 12V AGM House Batteries in their Class C coach?

Pros? Cons? -of going AGM versus wet cell 12Vs?

campigloo wrote:
Thanks everybody for all the great advice. I went with the Lifeline 6v gc agm. Seemed the most storage for the dollar and as or more important the pound. I hope I’m well on the way starting off with 600ah.
Cheers and thanks again!

Two 300AH 6s is 300AH at 12v

Four 300AH 6s in series-parallel is 600AH at 12v

MEXICOWANDERER wrote:
But some folks like settling for Chinese batteries. Reminds me of saving ten dollars on the price of a coat and being almost warm for half the life expectancy of a warm coat. Go figure.

David ... are you referring to batteries copied and built in China ... or batteries built in China but designed and manufacturing-controlled from other places?

There may be a difference. ;) : https://thesolarstore.com/fullriver-m-96.html

Thanks everybody for all the great advice. I went with the Lifeline 6v gc agm. Seemed the most storage for the dollar and as or more important the pound. I hope I’m well on the way starting off with 600ah.
Cheers and thanks again!

It's time for (2) new House Batteries for my Class C coach. I've always gone with (2) Interstate wet cell batteries in tandem.

Will AGM replacment 12V batteries be suitable and acceptable? Pros? Cons?

Do Interstate brand batteries ever go on-sale anywhere?

Is anyone running Sears AGM Die-Hards as House batteries?


.

campigloo wrote:
Hi y’all
I’m still shopping batteries for my solar setup. I want agms and am leaning toward 6v gc instead of 12v deep cycle. Does that sound reasonable? I know this is vague but I’m trying to keep it simple.
Thanks

Short answer. Good plan

Longer answer
If you can get 12 volt DEEP CYCLE batteries (IE: GC-12's) then 100 amp hours is 100 amp hours.. or to be more precise 100 amp hours is 50 amp hours since you can safely use only half the power.

But most 12 volt batteries are MARINE/deep cycle and should not be run down to 50% so 100 amp horus is 25 amp hours on a MARINE/deep cycle.

Now the next point: Because golf cars use GOLF CAR (GC) batteries. golf courses from here to there and back again buy 'em by the pallet load.. often 2 or 3 pallets.. this makes them the single most produced battery. the 6V lines at the battery factory basically run year round without re-tooling save for updates... 12 volt lines get re-tooled for different sizes often... Re-tooling for different sizes is costly and adds to the price per unit power storage of the battery.. Making the GC-2 the best BANG (Totall watts stored) for your buck (For the cost).

So the long answer is "Good plan". as well

NOTE you can get 12 volt deep cycle. and some very very large ones as well but the 6V GC-2 still is the best bang for the buck.

campigloo wrote:
Hi y’all
I’m still shopping batteries for my solar setup. I want agms and am leaning toward 6v gc instead of 12v deep cycle. Does that sound reasonable? I know this is vague but I’m trying to keep it simple.
Thanks

Buy whatever voltage deep cycle AGM batteries that fit and provide the amp hours of capacity that you want.

However, be aware that 6V golf cart AGM batteries will intrinsically be deep cycle types. While 12V Group 27/29/31 AGM batteries are available as deep cycle types, they are NOT AUTOMATICALLY of that type ... you'll have to shop specifically for them as being of a true deep cycle design.

We use a couple of 115 amp hour 12V Group 31 true deep cycle batteries in our RV, for a total of 230 amp hours of deep cycle capacity when wired together in balanced parallel. They're high quality and cost us about $305 each.