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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Good work on measuring your capacity and noticing what is going on.
They never got completely recharged at the times they were ever at 14.4 (when they need 14.8) so now they are sulfated and below capacity. You need to do a lot of work to "recover" them using a charger that will go to near 16 volts.
Read up on "equalizing" since that is the same technique you need to use for a "recovery" desulfation.
BTW the terminology for capacity or usage is Amp-Hours (AH) not amps, just so you don't confuse everybody.
They never got completely recharged at the times they were ever at 14.4 (when they need 14.8) so now they are sulfated and below capacity. You need to do a lot of work to "recover" them using a charger that will go to near 16 volts.
Read up on "equalizing" since that is the same technique you need to use for a "recovery" desulfation.
BTW the terminology for capacity or usage is Amp-Hours (AH) not amps, just so you don't confuse everybody.
