How to Clean Corroded Battery Leads

Before starting any work on the battery, ensure the engine is turned off and the keys are removed from the ignition. Begin by disconnecting the cable clamps from the battery terminals. Always start with the negative/black clamp first, followed by the positive/red clamp. Loosen the clamps using the appropriate tools, typically a wrench or socket set.

Once the cable clamps are disconnected, carefully remove the battery from the vehicle. Loosen the battery holder or bracket to facilitate removal, ensuring it is secure to prevent any accidents.

Prepare a solution of baking soda and water to clean the battery terminals. Mix approximately 1 tablespoon of baking soda with 1 cup of water until dissolved. Use a clean cloth or rag to apply the solution to the entire top of the battery, ensuring thorough coverage. This will help neutralize any acid and remove oxidation buildup.

While the battery is removed from the vehicle, take the opportunity to clean the cable clamps thoroughly. Use a brass brush (535 or 536) to scrub the clamps until they are shiny and free from corrosion. Work at a recommended speed of around 15,000 rpm with a rotary tool to achieve optimal results.

Once the terminals and cable clamps are cleaned, re-install the battery in the vehicle. Ensure it is positioned securely and the terminals are aligned correctly. Apply a light coat of grease or petroleum jelly to the battery terminals before re-attaching the cable clamps. This will help prevent future corrosion and ensure a reliable electrical connection.

With the battery securely in place, re-connect the cable clamps to the terminals. Start with the positive/red clamp first, followed by the negative/black clamp. Use the appropriate tools to tighten the clamps securely, ensuring there is no looseness that could prevent the car from starting.

By following these step-by-step instructions and taking proper precautions, you can effectively remove corrosion from your car battery and maintain optimal performance. Remember to prioritize safety by wearing eye and respiratory protection, and always refer to instruction manuals for all tools used in the project.