Battery Back Up Pump Voltage 12V DC Amps @ 10 ft of Head 15.5 A Switch Actuation Vertical Float Flow Rate @ 10 ft of Head 11 gpm Pump Body Material Plastic Alarm Output Audible Charger Input Voltage 115V AC 120V AC Charger Output Voltage 12 V Charger Hz 60 Required Battery (2) Group 27 or 31 Batteries Battery Sold Separately Group 27 or 31 Battery Max Head 14.5 ft Impeller Material Thermoplastic Shaft Seal Material - Pumps Carbon Ceramic On Point Adjustable