Combination of battery-protected and surge-only outlets reserves power capacity for connected equipment that requires battery back-up. Dataline Surge Protection provides protection of connected equipment on the data lines. Power conditioning protects connected loads from surges, spikes, lightning, and other disturbances. Audible alarms delivers notification of changing utility power and UPS conditions. Automatic restart of loads after UPS shutdown upon the return of utility power for exceptional convenience. Automatic battery self-test ensures early detection of a battery that needs to be replaced. System VA: 500 VA; Backup Time at Half Load: 13.9 minutes @ 150 Watts.