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 > 6v or 12v?

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Freep

Wisconsin

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Posted: 08/30/17 05:16pm Link  |  Quote  |  Print  |  Notify Moderator

All else being equal, which is preferable and why?

2 220 AH 6v batteries
or
2 110 AH 12v batteries


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donn0128

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Posted: 08/30/17 05:26pm Link  |  Quote  |  Print  |  Notify Moderator

6V





fpoole

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Posted: 08/30/17 05:30pm Link  |  Quote  |  Print  |  Notify Moderator

6v
I had OEM 12v, went to solar and recommendations were all for 6v..

Something to do with Amps etc... no idea, and don't really care to get confused by it all.. but 6v was the recommended way.. longer lasting and deeper draw or something like that..

Downside is if one 6vt goes bad, you no long have a 12v system.. if I remember correctly... that was my main concern initially..


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tattoobob

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Posted: 08/30/17 05:48pm Link  |  Quote  |  Print  |  Notify Moderator

6v Because 110 AH is just that no mater how many batteries you have you still have 110 AH


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cewillis

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Posted: 08/30/17 05:50pm Link  |  Quote  |  Print  |  Notify Moderator

I'd rather have (and do have) multiple 12v. If one is no good, you're still in business. And with the specs you mentioned, it's 220AH at 12v either way.


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time2roll

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Posted: 08/30/17 05:52pm Link  |  Quote  |  Print  |  Notify Moderator

6v for longer life and improved reliability.


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NRALIFR

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Posted: 08/30/17 06:03pm Link  |  Quote  |  Print  |  Notify Moderator

I'd base my choice of batteries strictly on which one would allow me to stuff more AH's in the available space. There are more sizes of 12v batteries than just the group 27's you are comparing to. If you can fit 2 group 31's of the correct type, you could have more available AH's than the 2x6v.

[emoticon][emoticon]


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azrving

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Posted: 08/30/17 06:08pm Link  |  Quote  |  Print  |  Notify Moderator

6 volt all the way. I throw 12's in the lake. One of the worst batteries ever dumped on the public. Geez that dead horse at the door sure smells. [emoticon]

Freep

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Posted: 08/30/17 06:28pm Link  |  Quote  |  Print  |  Notify Moderator

NRALIFR wrote:

I'd base my choice of batteries strictly on which one would allow me to stuff more AH's in the available space. There are more sizes of 12v batteries than just the group 27's you are comparing to. If you can fit 2 group 31's of the correct type, you could have more available AH's than the 2x6v.

[emoticon][emoticon]


Actually, you can find 6v in quite a few sizes. I built a little spreadsheet to help me narrow down the batteries I can fit in the battery box and I keep hitting upon the same choice, which is 2 12v or 2 6v with the same number of amp hours.

I also save a few bucks with the 6v, but not much.

Also, I'm looking at AGM, but that shouldn't factor into the 6 versus 12 question.

GordonThree

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Posted: 08/30/17 06:31pm Link  |  Quote  |  Print  |  Notify Moderator

cewillis wrote:

I'd rather have (and do have) multiple 12v. If one is no good, you're still in business. And with the specs you mentioned, it's 220AH at 12v either way.


X2 for 12v


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