How to Clean Car Battery Corrosion?


If you want to drive a car smoothly, you must maintain its battery and other parts regularly. Without maintenance, the batteries of a vehicle deteriorate due to the accumulation of excess corrosion.

Ever had a problem starting your car? Or, have your car stopped in the middle of the road? Then, no doubt, the battery of the vehicle is getting corroded.

So, how to clean car battery corrosion? You must yearn to know that, and that’s why you’re here!

We’ll disclose everything for cleaning a car’s battery corrosion. Let’s first know why a car’s battery corrodes.

The acidic fumes that come from the car’s battery are the main reasons for its visible corrosion. Some other elements like salt and moisture are also responsible for the car’s battery getting corroded.

How to Clean Car Battery Corrosion?

Cleaning the corroded car is very important to avoid unnecessary expenses. Big news! There is a simple way to clean the car battery with inexpensive home ingredients, vinegar, and baking soda.

Let’s continue to know how to clean car battery corrosion with vinegar and baking soda. If you need tires recommendation according to car model, check Authority Beast blog.

Tools you must need

  • Wrenches
  • Baking soda
  • Hot water/ Vinegar
  • Toothbrush
  • Spray bottle
  • Rugged cloths
  • Water
  • Petroleum jelly
  • Wrench Organizer (Optional)

Steps you must follow

Step 1: Turn off the car

Prior to starting the cleaning process, turn off the engine of the car for your safety. A starting car may cause an accident due to the friction between the car’s wire and battery.

Step 2: Remove the Terminals of The Battery After Finding It

Find out the battery in your car and disconnect the battery from the car. Intending so, identify the positive and negative wire connected to the battery. With the wrench, loosen the nut of the battery’s negative cable first.

Afterward, apply the same process for loosening your positive cable from the car also.

Step 3: Examine the crack, clamps, and tear into the battery. 

After disconnecting the cables, check the crack, and tear into the wires of the battery. If the wires of the battery have been cracked or split, you have to re

place them. 

After this, check how much corrosion on the cables and terminals of the battery. You have to make the cleanser based on the amount of corrosion.

Step 4: Make the Mixture of Baking Soda

Let’s make a cleansing solution with baking soda and vinegar or hot water. Baking soda and vinegar are the basic kitchen ingredients you’ll quickly find from your nearest super shop.

However, take a bowl, put 1 tablespoon of baking soda and 1 cup of hot water/ vinegar into it. Mix them properly with a tablespoon.

Step 5: Apply the Paste onto The Substance of The Battery

So, you have made the cleaning paste for your car’s battery. Now lift up the paste with an old brush and apply it to the battery’s terminals and clamps. Scrub the paste until the grease and white substances around the battery get eradicated.

Step 6: Rinse the Substances and Paste Them on The Battery

Let the cleanser work on the persistent grease of the car for some time. Within this interval, refill a spray bottle with clean and cool water. Also, take a ragged cloth.

Spray the water onto the paste of the car’s battery. Rinse the battery until the substance completely goes away. With the ragged clothes, wipe out the residue substances from the battery terminal.

Step 7: Lubricate the Metals with The Petroleum Jelly

Take a little petroleum in your ragged cloth and apply it onto the battery’s terminals and clamps. Using petroleum jelly has nothing to do with cleaning the battery’s metal. But it protects the metal components from corrosion in the future.

Step 8: Connect the Disconnected Clamps

With the wrench, again re-connect the clamps with the terminals that you have disconnected before. Don’t forget to test if the wires have been connected tightly or not.

Clean Car Battery Corrosion Without Baking Soda

Do you want to clean the car battery corrosion without baking soda? Of course, you can do that also!

Just pour the cola on the battery’s greases instead of applying the baking soda and vinegar paste. Except for this, the whole procedure will remain the same.

The Sum Up!

Corrosion on the battery is dangerous for the internal system of a car. Longtime corrosion on a car’s battery results in frequently stopping the vehicle in the middle of the road.

Often, if you notice this sign, you have to understand its battery is having corroded. So, you have to remove the corrosion on the battery as soon as possible.

But, how to clean the car battery corrosion? It is not that big an issue to clean the corrosion and grease of the car battery by yourself. You don’t need a mechanic or professional maintainer for that.

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