Forum Discussion
Gjac
Mar 30, 2021Explorer III
I have found that when I overfill the battery cells with water I get that kind of corrosion. Also excessive charging, like when a battery is starting to die will do the same. How old are your batteries? Load test to see if they are still good if you think they don't hold a charge well. I would just clean the tops of your batteries, the dirt/stuff on top can cause the batteries to self discharge faster, remove the rust with a wire wheel and paint the metal with black paint, rustoleum, fill cells enough to cover the plates don't overfill and see if you still get that kind of corrosion. I don't use grease or any other stuff and don't see that corrosion since I stopped overfilling my battery cells.
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