2 12 volt batterys or 2 6 volt
what gives me the most bang for my money. every other rig that I have bought always had 6 volt battery's but the new one has 2 12 volt. not sure what works better.
Forum Discussion
For clarity, draw a diagram of two 6 volt batteries (showing three cells in each battery) in series making of up a 220 amp hour bank. Then draw a diagram of two 12 volt batteries (showing six cells in each battery) in parallel making up a 220 amp hour bank. It will then be clear that each 6 volt battery cell has to generate - day in and day out - twice the current of each 12 volt battery cell.
I'll bet that the plate mass of each cell per amp of current created is about the same for both apples-to-apples battery types ... given equal quality of construction. If that is close to the situation, then I'll further bet that the 6 volt battery plates - since they're creating twice the current for each cell - BETTER be thicker so as to have twice the mass so that their overall erosion life-span equals that of the thinner 12 volt plates that create one-half as much current.
I find it hard to digest that two high quality 220 amp hours each, 72 pounds each, 6 volt deep cycle batteries will intrinsically outlast two high quality 110 amp hours each, 72 pounds each, 12 volt deep cycle batteries.
One need not jump to a conclusion based on what is commonly stated by others. It merely takes some head-scratch thinking about what most likely has to be going on with chemistry, currents, and materials. I'm not advocating that the situation is ONLY plate mass dependent - just that the situation is MOSTLY plate mass dependent.
I'll bet that the plate mass of each cell per amp of current created is about the same for both apples-to-apples battery types ... given equal quality of construction. If that is close to the situation, then I'll further bet that the 6 volt battery plates - since they're creating twice the current for each cell - BETTER be thicker so as to have twice the mass so that their overall erosion life-span equals that of the thinner 12 volt plates that create one-half as much current.
I find it hard to digest that two high quality 220 amp hours each, 72 pounds each, 6 volt deep cycle batteries will intrinsically outlast two high quality 110 amp hours each, 72 pounds each, 12 volt deep cycle batteries.
One need not jump to a conclusion based on what is commonly stated by others. It merely takes some head-scratch thinking about what most likely has to be going on with chemistry, currents, and materials. I'm not advocating that the situation is ONLY plate mass dependent - just that the situation is MOSTLY plate mass dependent.
