Waterproof Socket Connection Lead Acid Maintenance Smart Battery 12 Volt Trickle Charger plug connection (sockets not included) Motorcycle ATV #Ps1/pba Waterproof plug connection with 10 ft cord. Plugs into any 12 volt sytle lighter socket. Charges your battery then turns itself off to extended battery life. UL approved 10 watt trickel charger Safe for extened use.