Battery Extender 12V/1.5A

Part Number: AUTBEX-1500
Price: $59.95
Ships Direct From Manufacturer

These battery extenders are designed to maximize the life of a 12V battery. They charge a battery at 1 amp until it is fully charged. Then change to a 250 milliamp current to maintain a full charge. This prevents sulfation, the main reason for premature battery failure.