4 Charging Stations: Charge up to two 12V or 6V batteries at 3 AMPs simultaneously; automatically switches from full charge mode to float charge mode for optimal long-term battery health

Extend Battery Life: Compatible with all 12V and 6V lead-acid, flooded, AGM, and gel cell batteries and all 12V lithium batteries; complete 4-step charging program works the battery with overcharging or discharging

Includes: 12V/6V 12 AMP 4 bank battery charger, two two-in-one alligator clip and ring terminal harness combo cables, mounting hardware, a two-year manufacturer limited warranty, and lifetime customer support

Protected: IP67 and Marine UL ratings for weather, shock, and vibration resistance. Safety features including spark-proof, reverse charging warning, and ignition protection. Marine-grade fused battery quick disconnects.

Long-Term Storage: Battery Tender battery chargers are completely automatic and may be left connected to both AC power and to the batteries being charged for long periods of time