Series: BC Pro Output Voltage: 120V AC Outlets: 6 Outlet Type: NEMA 5-15R Battery Run Time: Full load runtime 5 minutes (600VA) Half load runtime 17 minutes (300VA) Battery Recharge Time: 4.5 hours to 90% Alarms: Audible alarm with 15 second delay sounds to indicate loss of utility power. Alarm can be silenced by pressing front panel alarm cancel button. Once silenced, alarm will re-sound when approximately 2 minutes runtime remain. Interface Port: USB