Eaton 5110 UPS (1500 VA / 900 W battery) (Discontinued by Manufacturer) Keeps essential systems running through power outages (four outlets with battery backup and surge suppression and four outlets with surge suppression only) Delivers consistent, clean output with Automatic Voltage Regulation (AVR) that doesn't drain battery power Protects networked equipment from "back door" surges coming over LAN or telephone lines Informs you of power problems and battery conditions with audible alarms and remote alarm notification; Extends UPS service life with user-replaceable batteries Line-interactive UPS; 1500 VA / 900 W battery; 320 J surge protection