#93: Quickly removes corrosion and grime deposits from battery terminals and cables. Minimizes battery-current leakages and prolongs battery life. Also can be used to remove corrosion from automotive light assemblies. Use on most corroded electrical areas to improve electrical contact. Equal to Noco's battery terminal cleaner.Includes special dye that changes from yellow to pink on contact with acid. Allows you to find out if all acid has been removed.