How to Clean Car Battery Corrosion

Car battery corrosion is a common issue that can significantly reduce your vehicle’s performance and lifespan. Especially in Calgary's fluctuating weather conditions, corrosion can form more quickly due to the cold winters and occasional humidity. This guide will take you through why car battery corrosion occurs, how to clean it safely, and how to prevent it from recurring, ensuring your car runs smoothly all year long.

How to Safely Clean Car Battery Corrosion

Here’s a comprehensive guide to cleaning car battery corrosion:

1. Gather the Necessary Materials

Before you start, ensure you have the right materials and safety gear:

• Baking soda
• Water
• A wire brush or toothbrush
• Safety goggles
• Rubber gloves
• Wrenches or pliers (for disconnecting the battery)
• Battery terminal cleaner (optional)
• Petroleum jelly or anti-corrosion spray (optional)

2. Safety First

Car batteries contain acid that can be harmful if it comes into contact with your skin or eyes. Always wear safety goggles and rubber gloves to protect yourself while cleaning the battery. It’s also a good idea to work in a well-ventilated area to avoid inhaling any harmful fumes.

3. Turn Off the Vehicle and Disconnect the Battery

Ensure the vehicle is turned off before starting. Disconnect the battery terminals, starting with the negative terminal (marked with a "-" sign) followed by the positive terminal (marked with a "+" sign). This prevents any electrical shorts or sparks while cleaning.

Use a wrench or pliers to loosen the nuts on the battery terminals, and carefully lift the cables off the posts. If the corrosion is particularly thick, you may need to use a little force, but avoid prying or pulling too hard to prevent damage to the cables or terminals.

4. Prepare a Cleaning Solution

A simple and effective cleaning solution is a mixture of baking soda and water. Baking soda neutralizes the battery acid, making it safe to clean. Mix about 1 tablespoon of baking soda with 1 cup of water in a container.

5. Clean the Battery Terminals

Dip a wire brush or toothbrush into the baking soda solution and scrub the corroded areas on the battery terminals and posts. The baking soda will cause a fizzing reaction, which helps to loosen and dissolve the corrosion. Continue scrubbing until all the corrosion is removed.

If the corrosion is stubborn, you can apply a battery terminal cleaner for additional cleaning power. Be sure to clean both the battery terminals and the cable ends thoroughly.

6. Rinse and Dry

Once the corrosion is scrubbed away, use a clean cloth or towel to wipe off the baking soda residue. You can also rinse the terminals with a small amount of water, but make sure not to let any water enter the battery cells. After rinsing, dry the terminals completely to prevent any further moisture buildup.

7. Apply Petroleum Jelly or Anti-Corrosion Spray

To prevent future corrosion, you can apply a thin layer of petroleum jelly to the battery terminals and cable ends. The jelly acts as a protective barrier against moisture and prevents the buildup of corrosion. Alternatively, you can use an anti-corrosion spray designed specifically for car batteries, which can be found at most auto parts stores in Calgary.

8. Reconnect the Battery

After cleaning and applying protection to the terminals, reconnect the battery, starting with the positive terminal first and then the negative terminal. Make sure the terminals are tightly secured to ensure a good electrical connection.

9. Test the Battery

Once everything is reconnected, turn on your car to ensure the battery is working correctly. If you notice any further issues, such as difficulty starting the engine or electrical malfunctions, it may be time to have your battery tested or replaced.

What Causes Car Battery Corrosion?

Corrosion on car batteries is typically caused by a chemical reaction between the battery acid and the metal terminals. Over time, this reaction can create a white, blue, or greenish deposit around the terminals, impeding the electrical connection. Several factors contribute to corrosion:

• Electrolyte leakage: The acid from the battery can leak and cause a buildup on the terminals.
• Overcharging: Overcharging your battery can cause gases to escape and settle on the terminals, forming corrosion.
• Old age: As the battery gets older, the chances of corrosion increase.
  Weather fluctuations: Calgary's extreme cold and rapid weather changes can exacerbate battery corrosion, especially during the winter months.

If left untreated, corrosion can lead to difficulty starting your car, poor battery performance, and, in severe cases, complete battery failure. Cleaning the corrosion early can extend your battery's life and save you from costly replacements.

How to Prevent Future Battery Corrosion

Now that your battery is clean, it’s important to take steps to prevent corrosion from forming again. Here are a few tips to help protect your battery and keep it corrosion-free:

1. Regular inspections

Make it a habit to check your battery every few months, especially during Calgary’s winter season, for any signs of corrosion.

2. Proper charging

Avoid overcharging your battery, as it can cause excess gassing and lead to corrosion. Use a trickle charger if you need to maintain your battery for long periods of inactivity.

3. Apply protective products

As mentioned, applying petroleum jelly or an anti-corrosion spray can help protect the terminals from future buildup.

4. Battery maintenance

If your battery is old or showing signs of wear, it’s a good idea to get it tested and replace it if necessary before the corrosion problem worsens.

Conclusion

Cleaning battery corrosion is a simple yet essential task for every Calgary driver. By following the steps outlined above, you can restore your battery's performance, extend its lifespan, and avoid being stranded with a dead battery. Whether you’re cleaning corrosion at home or need assistance, Batteries Store Calgary offers the tools and products you need to keep your car battery in peak condition, especially during Calgary’s cold winter months.
Visit us today to explore our range of car batteries, battery maintenance tools, and expert services to keep your vehicle running smoothly!