Battery Cola Confusion

Battery Cola Confusion

The question that has been pondered for decades is, can the popular soda Coke-a-Cola clean a corroded Battery?

No, Coca-Cola cannot effectively fix a corroded car battery. While there are many myths and misconceptions about the potential uses of Coca-Cola, it is not a suitable solution for repairing or addressing corrosion on a car battery.

Corrosion in a car battery typically occurs due to a buildup of acidic residue around the battery terminals, which are made of lead. Coca-Cola is a carbonated soft drink that contains acids and sugars, which can actually worsen the corrosion problem by introducing more acids to the battery terminals.

To properly address corrosion on a car battery, you should follow these steps:


  1. Safety first: Wear gloves and eye protection to avoid contact with battery acid.
  2. Disconnect the battery: Before cleaning or maintenance, disconnect the cables. Always remove the negative (black) cable first and then the positive (red) cable.
  3. Clean the terminals: Use a mixture of baking soda and water (1 to 2 tablespoons of baking soda per cup of water) to create a paste. Apply this paste to the corroded areas on the battery terminals, and gently scrub with a wire brush or a dedicated battery terminal cleaning tool. This will help neutralize the acid and remove the corrosion.
  4. Rinse and dry: After cleaning, rinse the terminals with clean water to remove any remaining residue. Make sure the terminals are completely dry before reconnecting the battery.
  5. Reconnect the battery: Reattach the positive cable first and then the negative cable. Ensure they are securely tightened.
  6. Prevent future corrosion: To prevent future corrosion, you can apply a thin layer of petroleum jelly or a commercial battery terminal protector spray to the clean terminals. This will help inhibit the formation of corrosion.


Remember that safety is essential when working with car batteries, as they contain sulfuric acid and can be dangerous if mishandled. If you are not comfortable or experienced with car battery maintenance, it’s a good idea to seek assistance from a qualified mechanic or automotive professional.

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