6V vs 12V
I'd suggest comparing AHr rating vs $
As far as I know beyond those two variables (and what will fit of course), there isn't really any substantial difference.
As I understand it, the driving reason folks tend to go with deep 6V is that since they are more commonly used in golf carts, they are more readily available and therefore cost a bit less.
All else the same, I'd prob go 12V... my logic could very well be flawed, but if I have a bank of two "batteries" and I have a cell go out in one of them and have to disconnect that one battery....then I'm left with 6V if using the 6V version....so I'd be dead in the water
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