I changed out my house batteries with Trojan T-105 AGM due to corrosion of the connections and cables. The batteries had been abused on the lot, however they still performed at about 75% expected capacity. They did require a lot of water but much of that was the Trombetta Relay was bad and the batteries never got charged on the road. Ran them down several times before narrowing down the faulty relay. The AGM's do work better in dry storage without having to be on a maintainer.
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