When to replace 6v batteries
When testing my 5er 6v batteries,I charge them for 12hrs on my home Battery charger,then disconnect them..the surface voltage is 12.8v after 4hrs its down to 12.5 and after 8hrs it sits at 12.2 for 2d...
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It doesn't cost anything to equalize the batteries, a load test is free also. My 2 6v Sam's Club GC batteries seemed to not hold a charge over the winter and being 9 years old I was going to replace them, but I ran an equalizing function first then a desulfate function for 24 hrs and they are holding a charge well. My starting battery was slow to turn over the engine but was a maintaince free battery so I could not equalize. I took it to Walmart and they load tested it and it was only putting out 590 CCA's It was rated at 770 when new, it was 9 years old also. So I bought another one rated at 810 CCA's at Walmart. You have nothing to lose by trying to equalize first.
