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How to Clean Corroded Car Battery Terminals

by Rose Kivi

Corrosion on your car battery terminals can prevent your car from starting. Cleaning the corrosion is an easy do-it-yourself job when you follow some simple directions.

Step 1

How to Clean Corroded Car Battery Terminals

Make sure your car engine is turned off.

Step 2

How to Clean Corroded Car Battery Terminals

Remove the negative battery cable first by loosening it with a flat-head screwdriver and lifting it off the battery terminal. After removal from the terminal, set the negative cable away from the positive battery terminal and metal.

Step 3

How to Clean Corroded Car Battery Terminals

Remove the positive battery cable using the same removal method as the negative cable. Do not let the negative and positive battery cables touch.

Step 4

How to Clean Corroded Car Battery Terminals

Pour Coca Cola or baking soda and water on the battery terminals and the battery cable ends.

Step 5

How to Clean Corroded Car Battery Terminals

Scrub the battery terminals and the battery cable ends with a toothbrush until the corrosion is removed.

Step 6

How to Clean Corroded Car Battery Terminals

Pour water on the battery terminals and the battery cable ends to rinse Coca Cola or baking soda off.

Step 7

How to Clean Corroded Car Battery Terminals

Let battery terminals and battery cables dry.

Step 8

How to Clean Corroded Car Battery Terminals

Apply a thin coat of Vaseline to battery terminals.

Step 9

How to Clean Corroded Car Battery Terminals

Slide the positive cable onto the battery terminal and tighten.

How to Clean Corroded Car Battery Terminals

Slide the negative cable onto the battery terminal and tighten.

Items you will need

  • Flat-head screwdriver
  • Coca Cola or baking soda and water
  • Water
  • Toothbrush
  • Vaseline

About the Author

Rose Kivi has been a writer for more than 10 years. She has a background in the nursing field, wildlife rehabilitation and habitat conservation. Kivi has authored educational textbooks, patient health care pamphlets, animal husbandry guides, outdoor survival manuals and was a contributing writer for two books in the Uncle John’s Bathroom Reader Series.

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Photo Credits

  • Getty