How Do You Protect Car Battery Posts From Corrosion?
Corrosion on car batteries can make the vehicle increasingly difficult to start, until it won’t start at all. The corrosion appears as a white or green build-up around the terminal posts–the posts on the top or sides of the battery, where the cables connect–and as a black build-up on the posts themselves. Protect the car battery posts from corrosion by simple maintenance with minimal investment of time and expense. Disconnect the battery cables from the terminal posts. Disconnect the negative (-) cable first and then the positive cable (+). Open the water reservoir located on the top of the battery, unless it is a no-maintenance battery, which does not require additional water. Fill with water to the fill line because batteries that are low on water corrode quickly. Mix a solution of equal parts baking soda and water. Use a toothbrush to scrub the corrosion off the battery casing and the terminal posts while taking care not to get any of the solution into the vents on the top of the
