Automatic On/Off Battery Charger, Engine Starter - 6/12 Volt, 10

Features:
UL rated 55 amp engine start, 105 amp max
Automatic 12 volt settings shut output off at full charge, but turns back on if battery discharges for any reason.
Green light indicates "Complete Cycle", red light signals "Reverse Hook-Up"
Great for maintenance-free and deep-cycle batteries.
Manual 6 volt setting for your 6 volt charging applications.
Help start vehicles with weak batteries, with minimal pre-charging.