12vtechnology Designed for Motorcycle Waterproof Automatic Smart Battery 12 Volt Trickle Charger w/Fused Pigtail #Ps3 Extra long cord with 10 ft cord. Plugs into your powerlet socket or lighter socket. Charges your battery then turns itself off to extended battery life. Multi stage charger designed for small Gel Cell, AGM or Lead Acid batteries. Safe for extened use.