Marine Battery Terminal Cleaner & Protector BundleBattery Cleaner with Acid Indicator - 11oz Removes corrosion from cables, terminals, cases, and hold-downs. Neutralizes acid spills. Assures maximum battery current flow and promotes longer life.Applications:Clean battery terminals, battery casings, cable connectors and hold downs. Battery Terminal Protector - 7.5oz Specially designed to protect battery terminals form corrosion, a leading cause of hard starting and battery failure. Provides a lead free soft protective coating.Applications:Battery posts, terminals, hold-downs and casings used in vehicles, boats, handling equipment and uninterrupted power supplies (UPS), and used for computer, security and emergency back-up systems.