Battery Life 6 Year Backup/Run Time (Half Load) 9 Minute Backup/Run Time (Full Load) 2 Minute Replaceable Battery Yes DC System Voltage 12 V DC Typical Battery Recharge Time 8 Hour Input Current 12 A Surge Energy Rating 316 J Waveform Type Pulse-width Modulated Sine Wave Output Frequency 60 Hz Input Frequency 60 Hz Load Capacity (VA) 550 VA Load Capacity (Watt) 300 W Dataline Protection RJ-11 Plug/Connector Type NEMA 5-15P Phase Single Phase Receptacle Type NEMA 5-15R EMI/RFI Noise Filter Yes AVR Yes AVR Range Boost +18% / Buck -15% Energy Saving Greater than 95% efficiency - GREEN UPS Number of Battery & Surge Outlets 4 Number of Surge-only Outlets 4 Transfer Time 6 ms Receptacle Detail 8 x NEMA 5-15R