How Do You Clean Corroded Battery Terminals In Toys. Use another cloth that is damp with plain water to wipe out the inside to remove any remaining residue. Use a small thin screwdriver and push this between the top of the terminal and the battery holder.
Dip your cotton swab into the vinegar and lightly scrape against the corrosion build up inside the battery compartment. Heavy corrosion either on the copper cramps or on the terminals is hard to remove. Using a barely damp cotton swab wipe the battery compartment till it is clean.
Protect yourself and your work surface.
You definitely want scrubs. Spread newspaper over the surface where you plan to work. Pour out a can of cola. If your terminals are particularly corroded you may need a stiff wire brush to get your terminals really clean.
