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Old 04-15-2019, 02:35 PM   #1
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Solar Batteries

I was checking out Chessie's 12v-215aH batteries and couldn't find anything on their website (Batteries Plus). I called the store and they couldn't find a 12v-215ah battery listed. So we talked for a bit and he gave me some options. One was a 205ah for $337, or a 450ah for $2600.
But then he found these and I was wondering how they would work. It's a 6v-330a for $250, but if I open a commercial account with them I can get them for $180ea. 4 would run $720.
Is there a better option out there at a reasonable price? I know batteries a can run into the $1000's

The guy did say when we couldn't find the Duracell 12v-215, that they had discontinued it in his store because the Trojan battery was a much better battery for $15 less.
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Old 04-15-2019, 02:40 PM   #2
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How about two GC2's in series?

https://www.batteriesplus.com/batter...p-gc2/sligc110

That would give you a 12v 215a/h bank for $218.
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Old 04-15-2019, 02:45 PM   #3
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How about two GC2's in series?

https://www.batteriesplus.com/batter...p-gc2/sligc110

That would give you a 12v 215a/h bank for $218.
Separately they are 208ah, how does 2 make only 215?
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Old 04-15-2019, 02:49 PM   #4
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Separately they are 208ah, how does 2 make only 215?
Steve misspoke (mis-typed?) - you would have a 12V 208ah bank because those are each 6V batteries. Wired in series the voltage increases, but the capacity remains the same.
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Old 04-15-2019, 03:07 PM   #5
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But then he found these and I was wondering how they would work. It's a 6v-330a for $250, but if I open a commercial account with them I can get them for $180ea. 4 would run $720.
So you'll end up with 660ah (12v) for around $800 (tax and/or core charge). Not too bad.

We went with 12v partially because if we wanted to up our AH, we could add one battery at a time, instead of 2.
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Old 04-15-2019, 03:19 PM   #6
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Steve misspoke (mis-typed?) - you would have a 12V 208ah bank because those are each 6V batteries. Wired in series the voltage increases, but the capacity remains the same.
No Steve did not. If you series two 6v 215 a/h batteries you wind up with a 12v 215 a/h bank.
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Old 04-15-2019, 03:21 PM   #7
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No Steve did not. If you series two 6v 215 a/h batteries you wind up with a 12v 215 a/h bank.
That is correct, but the batteries you linked to were 208ah
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Old 04-15-2019, 03:21 PM   #8
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I did stretch the a/h a bit. Those are only 208 a/h. The Trojan equivalent is 215 a/h. Got them mixed up.
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Old 04-15-2019, 03:42 PM   #9
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So the 228ah Duracells at $300 would give you 456ah@12v for $1200. The 330ah batteries are $180 for 660ah @12v for $720.
Batteries Plus is telling me Duracell is not all they are cracked up to be.
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Old 04-15-2019, 03:56 PM   #10
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It's a 6v-330a for $250, but if I open a commercial account with them I can get them for $180ea. 4 would run $720.
Is there a better option out there at a reasonable price? I know batteries a can run into the $1000's
Sounds like you want to go with FLA batteries and total bank capacity of around 650Ah.

I'm not sure if these (https://www.batteriesplus.com/productdetails/sligc115) are available everywhere/where you are but six at 6V-230 Ah for $108/each (including the 10% online discount) would be 690 Ah bank for $650 +tax and would weigh in at around 400 lbs.

IMHO, fewer larger batteries would make for fewer cable connections to maintain and cells to water. More smaller batteries would make for more cable connections and more cells to water.

This battery watering system makes the watering chore very quick and easy. That can be a very useful thing depending on how accessible the batteries are.
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