APC Smart-UPS SRT Lithium Ion 1500VA RM 230V Network Card (SRTL1500RMXLI-NC) - Max Configurable Power (Watts): 1.35kWatts / 1.5kVA, Input frequency: 40 - 70 Hz Auto-sensing, Output Frequency (sync to mains): 50/60 Hz +/- 3 Hz Sync to mains, Load Crest Factor: 3 : 1, Bypass: Built-in bypass, Interface Port(s): RJ-45 10/100 Base-T, RJ-45 Serial, Smart-Slot, USB, Expected Battery Life: 5 - 10 years