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 > Yet another battery question

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campigloo

Baton Rouge, La

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Posted: 12/03/18 03:35pm Link  |  Quote  |  Print  |  Notify Moderator

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

BFL13

Victoria, BC

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Posted: 12/03/18 04:00pm Link  |  Quote  |  Print  |  Notify Moderator

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


On solar you tend to do mostly "shallow" cycles instead of "deep cycles" Different battery "styles" do better with shallow cycles, but you might be doing deep cycles on solar. So what's the scenario? then pick a battery style that goes best with that.


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RJsfishin

Winston Or.

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Posted: 12/03/18 04:05pm Link  |  Quote  |  Print  |  Notify Moderator

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

Sound reasonable ?? Not for me. But that's what you want, so buy them,...its your money.


Rich

'01 31' Rexall Vision, Generac 5.5k, 1000 watt Honda, PD 9245 conv, 300 watts Solar, 150 watt inv, 2 Cos 6v batts, ammeters, led voltmeters all over the place, KD/sat, 2 Oly Cat heaters w/ ox, and towing a 2012 Liberty, Lowe bass boat, or a Kawi Mule.


2oldman

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Posted: 12/03/18 04:11pm Link  |  Quote  |  Print  |  Notify Moderator

I loved my AGMs. Maintenance was blowing the dust off once a year.

If money is not an object consider Li batteries. Saves a lot of weight, takes monster charge currents, no absorb phase, no maintenance, can withstand 80% discharge, doesn't complain about being stored undercharged, and lasts a long, long time. What's not to like?

time2roll

Southern California

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Posted: 12/03/18 04:12pm Link  |  Quote  |  Print  |  Notify Moderator

AGM 6v is built virtually the same as 12v. AGM does not have the differences similar to flooded batteries.

6v (or one huge 12v) will not have balance issues compared to parallel 12v batteries but that is the only advantage with AGM.

So get what fits for the best cost vs capacity.


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Sam Spade

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Posted: 12/03/18 05:11pm Link  |  Quote  |  Print  |  Notify Moderator

time2roll wrote:


6v (or one huge 12v) will not have balance issues compared to parallel 12v batteries but that is the only advantage with AGM.


So, you think that no water to add, no fumes escaping and much less tendency to sulphate are not advantages ??


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Boon Docker

Mountain Foothills of Southern Alberta

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Posted: 12/03/18 05:20pm Link  |  Quote  |  Print  |  Notify Moderator

Two 6v Trojan deep cycle AGM are 230 amp hour and two Grp 27 Trojan AGM deep cycle are 200 amp hour. I would go with the 6v for the greater capacity.

campigloo

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Posted: 12/03/18 05:20pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the info. So if I go with 2 224ah 6v can I assume 448ah wired for 12v?
Anybody have experience with Fullriver?

Boon Docker

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Posted: 12/03/18 05:22pm Link  |  Quote  |  Print  |  Notify Moderator

No, two 224 ah 6v will give you 12v at 224 ah.

campigloo

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Posted: 12/03/18 05:30pm Link  |  Quote  |  Print  |  Notify Moderator

Boon Docker wrote:

No, two 224 ah 6v will give you 12v at 224 ah.


Thanks

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