The blue stuff you see on your car battery is called corrosion caused by a chemical reaction on the terminals. It decreases the battery life and can cause electrical shorts and starting issues.. Blue corrosion on your car battery might look like a big problem, but it's easy to clean with the right approach. A little baking soda, water, and elbow grease can go a long way in keeping your battery in top shape.
Many people don't know what the blue stuff on car battery is. Is it dangerous for their car? We will provide exciting information about this blue stuff!. Car battery corrosion keeps coming back due to overcharging, acid leaks, or loose terminals. White buildup on positive = overcharging. Blue-green = copper sulfate. Clean with baking soda and prevent with terminal spray.