Surge Energy Rating 1030 J Waveform Type Sine Wave Output Frequency 60 Hz Input Frequency 60 Hz Load Capacity (VA) 1500 VA Battery Chemistry Lead Acid Battery Size 12V Number of Batteries 2 Backup/Run Time (Half Load) 15.10 Minute Backup/Run Time (Full Load) 4.70 Minute Battery Characteristics Maintenance-free/Sealed Replaceable Battery Yes Typical Battery Recharge Time 3 Hour Overload Protection Yes Plug/Connector Type NEMA 5-15P Receptacle Type NEMA 5-15R AVR Yes Energy Saving GreenPower UPS™ Bypass Number of Battery & Surge Outlets 8 Number of Critical Load Outlets 4 Transfer Time 4 ms Receptacle Detail 8 x NEMA 5-15R