This battery charger provides up to 80A of charging current for 12 volt systems. Built-in features such as electronic current limiting, reverse battery protection, high voltage protection, low voltage operation, and over temperature shut down ensure long term reliability. Features: Reverse Battery Protection Deliver filtered DC power to all 12 volt lighting and appliance circuits, providing safe and reliable service. Electronic Current Limiting Lower Line Voltage Protection Variable Speed Intelligent Cooling Fan High Voltage Protection Automatic Thermal Shutdown Built-in Total Charge Management System (TCMS) Connector 2 Year Limited Warranty