Then slowly pour over the terminals, or take them of and let them soak in the jug. The negative cable should spark when it is connected this is fine and only shows that the connection is complete. Near boiling water in a small jug and add 3 tablespoons of bicarbonate powder. After cleaning, rinse each section with the hose and rinse the cloth in the second bucket. If you have areas with bird droppings or road tar, use a degreaser to help loosen those stains. Wipe down the area to dry it and soak up any remaining residue.įinally, replace the battery cables starting with the positive and then the negative. Wet the car again and start at the top washing each section with a sponge or microfiber cloth dipped in the soapy solution. Pour a small amount of water over the area to rinse away the sticky residue from the Coke and the last of the corrosion from the battery. When you have brushed away all of the loosened corrosion and rust, wipe the corroded areas with a paper towel to remove the Coke residue and the corrosion. Continue to brush until all of the corrosion is gone. ![]() The wire brush will also work the Coke into those hard to reach areas and break up the hidden corrosion a lot easier. Then rinse off the cable clamp, terminal, and battery. Leave the solution to rest on the battery terminal and the cable clamp until it stops fizzing. A common way to clean the battery terminals is with hot water and baking soda. Battery terminal cleaner will have an additive that changes the color of the corrosion to identify it for removal. Using commercial cleaners, spray them on the battery terminal and cable clamps. Clean the Battery Terminal Connectors with Baking Soda or Battery Terminal Cleaner. When the Coke has finished bubbling, take a wire brush and brush away any corrosion that is stuck around bolts or any other hard to reach areas. Apply baking soda + water liberally to the cable clamp and terminals. The acid in Coke will neutralize the corrosion on the battery and cables. The Coke will bubble and eat away at the rust and corrosion. ![]() Next, slowly pour a small amount of Coca Cola over any corroded areas. Removing the positive cable before the negative could result in shock because the current remains connected to the car. Always remove the negative cable first, then the positive. ![]() If you find yourself with this problem there is a simple, everyday solution and a very cool battery experiment you can conduct on your own with a can of Coca Cola, a wire brush, water and some paper towels.įirst, disconnect the battery cables with the correct size wrench or, if the corrosion is too heavy, a pair of vise grips. There are several reasons why a car battery develops corrosion on the posts and cables. In many cases, ignition problems can be fixed by cleaning the car battery corrosion from the terminals and cables, which couldn’t be simpler.
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