FeaturesOnline, double conversion interactive topology1000 VA power rating>86% resistive load efficiency5 to 15P input connection120 VAC (100/110/120/127 VAC) default input nominal voltage0.9 input and output power factor(6) 5 to 15R receptacleSine wave output waveform+/-1% steady state output voltage rangeABM technology battery managementHot swappable internal batteries and extended battery modules (EBMs) batteries replacement(3) 12 VAC, 9 Ah, 36 VDC battery ratingUSB, RS-232 serial communicationBD slot optional expansion slotsGraphical display, 4-button programmable menu user interface3000 m altitude500 online, 674 battery Btu ratingNon-condensing, 32 to 104 deg F temperature range black color