Forum Discussion
ktmrfs
Nov 21, 2018Explorer II
pianotuna wrote:
ktmrfs,
It is not a different number of batteries--it is the cell count.
For the same capacity in amp-hours, there are twice as many cells in 12 volt jars. Therefore the output demand per cell is 50% of that on 6 volt jars. The plates may often be thinner, too, which makes them more reactive and more easily able to output high loads for short time periods.
agreed. just saying it a different way. In the case of pair of GC-2's @ 200AH, ALL the current is supplied by one big 12V battery.
Parallel two 100AH 12V batteries and each battery only supplies 1/2 the total current. Couple that with the case that 12V typically have much lower internal resistance due to plate thickness and construction and 12V win for less voltage drop in the case of high current draw.
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