Batteries contain a large volume of water and sulfuric acid. During daily temperature changes, moisture condenses on the outside of the batteries and runs down the sides and under the batteries. The batteries out-gas some sulfuric acid fumes during charging. That mixes with the water and you have serious rust and corrosion. AGM or any type of VRLA batteries will solve this problem. If you choose to stick with flooded lead acid batteries, then enamel paint plus a plastic battery tray will help.
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Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
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