output capacity - 500va output voltage - 300 watts nominal output voltage - 230 volts output connections - 4 x iec 320 c13 (batt backup) typical backup time at half load - 16.3 minutes (150 watts) typical backup time at full load - 4.4 minutes (300 watts) general features **audible alarms **automatic self-test **battery replacement without tools **cold-start capable **cord management **dataline surge protection **hot-swappable batteries **led status indicators **network manageable **transformer-block spaced outlets