Input Voltage Range: 120 V Input Frequency: 50/60 Hz Output Voltage: 120V AC (100/110/120V) Outlets: 4 NEMA 5-15R, 4 NEMA 5-15/20R, 1 NEMA L5-30R Battery Run Time: Full load runtime: 14 minutes (2400 watts) - add 1 BP72V15-2U for 23 minutes, or add 1 BP72V28RT-3U for 41 minutes Half load runtime: 33 minutes (1200 watts) - add 1 BP72V15-2U for 52 minutes, or add 1 BP72VRT-3U for 94 minutes Battery Recharge Time: Less than 6 hours to 80% Interface Port: RS-232, USB Management Software: YES