How To Clean Battery Contacts Car. Learn the best batteries on the. Unplug your appliance from its power source or remove all batteries.

To ensure maximum cleaning use a wire brush. Then put a small amount of lemon juice onto the contact and brush it around. Use the brush to scrub and remove the contaminants.
Because many battery contacts are nickel plated if the corrosion has eaten through this plating the contacts may be susceptible to rusting in the future.
Disconnect the battery cables then use a stainless steel wire brush to clean the terminals and cable contacts until theyre free of corrosion. Reconnect the battery connecting the positive terminal first then the negative one. It is imperative to make sure all baking soda and corrosion are washed away. Sometimes corrosion is secure it must then use a knife or screwdriver to scrape and clean the terminals.

