How to Neutralize Acid Formations on Auto Battery Posts

Acid formations on the posts of your auto battery will, over time, eat into the posts and corrode them. If there's enough corrosion present, the electrical circuit between the battery posts and the battery cable leads will deteriorate. This may cause your battery to no longer charge correctly, become depleted, and unable to start the car. Baking soda is a mild alkali, so it will help to neutralize any acid deposits at the same time it helps clean the posts.

Things You'll Need

• Baking soda
• Rags

Instructions

1. Disconnect the battery cables from the battery before cleaning.

2. Isolate the cable leads you disconnected from the battery. In other words, slip an old glove or something over them so that there's no chance they will touch each other, or anything metal, and form a circuit.

3. Mix together three parts baking soda to one part water to form a thick paste.

4. Apply the baking soda mixture to the battery terminals with a damp cloth.

5. Scrub to remove any corrosion or acid formations.

6. Wipe the area clean with another rag. Use several rags if necessary. Don't splash water on the battery.

7. Ensure the battery posts are clean and dry. Then reconnect the battery cables.

Tips & Warnings

• Most of the time you don't have to worry about acid splashing out of the battery, but if there is excess acid you may choose to wear protective splash-proof goggles and an apron. Neutralize any acid that may get on your skin immediately with the baking soda paste. If any acid splashes on your clothes, wash them immediately with baking soda to neutralize the acid.

• Wearing sturdy gloves--leather or plastic is good--will protect your hands as you work on auto battery.