I think I'm looking at new batteries.
I have a pair of interstate Costco 6v that are about 3 years old. We don't boondocks anymore and the trailer is at the ranch and hooked up constantly. PD9855 (?) does the charging. I did a SOC ...
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Lwiddis wrote:
Hooked up constantly bothers me. I keep my batteries on a light duty solar system with a controller. Three years isn’t exceptional.
CONCUR !
I always recommend that when lead acid batteries are store for more than a few weeks, that the charger be connected via a mechanical lamp timer set to allow about 2-4 hours of charging per day.
