How To Fix A Corroded Battery Compartment. One may also ask can you use rubbing alcohol to clean battery contacts. A video showing how to clean up the corrosion or leaked acid from small batterieslike AA AAA C D or 9 Volts.
Place a drop of vinegar or lemon juice onto the corroded area then wait a minute or two for the neutralizing effect to take place. Then use alcohol of some sort to clean it off. Sometimes this vapor is vented out of the top vent blocks on the battery but other times small amounts of this vapor leak out in the area between the posts and where they seal to the plastic battery casing.
You can also mix 1 teaspoon of baking soda in 1 cup of water for the paste.
These batteries often leak their electrolyte all over the battery compartments if you leave them inside a remote or toy for too long. The corrosion on these battery contacts was from Alkaline batteries. You can also mix 1 teaspoon of baking soda in 1 cup of water for the paste. Soak it in vinegar and rub it in the corrosion.
