CRC Battery Cleaner with Acid Indicator 11oz Aerosol Application Info: CRC Battery Cleaner with Acid Indicator - 11oz Aerosol Yellow foaming cleaner instantly detects acid leaks and turns pink upon acid contact. Neutralizes acid and effectively cleans terminals, connectors, cases and hold downs. Penetrates and removes corrosion allowing for maximum current flow. Just spray on and rinse off. APPLICATIONS: Battery terminals, battery casings, cable connectors & hold downs.