Series: SmartPro Output Voltage: 120V Outlets: 8 Outlet Type: 5-15R Battery Run Time: Full load runtime 6 min (1440W) Half load runtime 14 min (720W) Battery Recharge Time: 3 hours from 10% to 90% (internal batteries) Battery Replaceable: RBC94-2U Alarms: 3 function audible alarm indicates power failure conditions (4 short beeps every 10 seconds), overload (continuous short beeps) and low battery (continuous tone)