[jdarwin]

Thanks Zack. I guess I'm trying to understand how capacity is measured. For example, a battery rated at 12.6 VDC and 100AH how can it measure 12.6 VDC and measure 75% capacity (75AH)?



When we tested both 6 VDC batteries they tested at 6.2 VDC. I googled a chart showing 6.2 VDC is equivalent to 75-100% "state of charge". The dealer was trying to tell me the batteries needed replacing. My question is why does a battery showing 75% capacity at 6.2VDC need replacing. Using the hydrometer, one of the batteries will need some maintenance or possibly replacing in the future. I just didn't see the need to replace both batteries.


What am I not getting?