1. Disconnect the battery. Before cleaning the terminals, disconnect the battery to avoid any electrical shocks or sparks.
2. Remove the battery terminals. Use a wrench or socket to loosen and remove the battery terminal nuts or bolts.
3. Clean the battery posts. Use a wire brush or a baking soda and water solution to clean the battery posts until they are shiny and free of corrosion.
4. Neutralize the battery acid. If any battery acid has spilled onto the battery tray or surrounding areas, neutralize it with a baking soda and water solution.
5. Reinstall the battery terminals. Once the terminals and posts are clean, reconnect the battery terminals and tighten the nuts or bolts.
6. Protect the terminals. To prevent future corrosion, apply a layer of petroleum jelly or a terminal protector to the battery terminals and posts.
