by johnl_ » Sat Sep 05, 2015 12:29 am
I hate battery terminal corrosion. For me it's on cars/trucks. I bought a truck with the original battery still in it. The corrosion on the positive post had gotten into the positive cable itself, bulging it out, was full of white crystaline powder. It broke in half when I removed it. Replaced the cable and went with a sealed type battery, Optima. It lasted about 6 years, but never re-corroded. They are expensive, but worth it just to not have the corrosion. From what I understand it's the hydrogen gas that unsealed lead-acid batteries give off that causes it. Overcharging causes more of the gas to be released. My dad uses cheaper unsealed lead-acid batteries on his truck, I wire brushed all the corrosion crap off and sprayed the cleaned terminals and various connections with permatex battery sealer, and it kept the corrosion from coming back, didn't think it would work, but it did.