House batteries not up to ah rating
Bought 2 new Interstate SRM-24 group 24 RV/Marine batteries a few months ago. I have used the MH 4 times on trips lasting from 3-6 days. Never going below 40 amps before recharging. The rating is 85...
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That'll Dew...
That sulfation has to be driven out of the plates and it might take a long time to do it. The longer it stays cycle after cycle the harder it gets and deeply embedded sulfation the stuff way down in the nooks and crannies of the coral reef texture takes dynamite and a pry bar to dissolve. I've tangled with GC220 US batteries that took almost a week to restore to 1.275. Although they were only six months old they immediately started reverting and specific gravity slumped further cycle after cycle. There is no way to telling when a battery gets to this point or rolls off the label and date line that it is a sulfation prince or acts normally.
That sulfation has to be driven out of the plates and it might take a long time to do it. The longer it stays cycle after cycle the harder it gets and deeply embedded sulfation the stuff way down in the nooks and crannies of the coral reef texture takes dynamite and a pry bar to dissolve. I've tangled with GC220 US batteries that took almost a week to restore to 1.275. Although they were only six months old they immediately started reverting and specific gravity slumped further cycle after cycle. There is no way to telling when a battery gets to this point or rolls off the label and date line that it is a sulfation prince or acts normally.
