CRC Battery Cleaner with Acid Indicator effectively cleans and removes corrosion by-products on batteries to help ensure easier starting, maximum current flow, and longer battery life. Engineered with an acid indicator, this cleaning spray detects leaks upon contact while neutralizing acid – just look for the yellow cleaner to turn pink so you can clearly see where battery acid is present. Prevent battery failure with this battery cleaner spray so you can stay Ready for the Road Ahead™. FleetPride is your First Click in Heavy Duty®.