Combination of battery-protected & 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, & other disturbances. Audible alarms delivers notification of changing utility power & 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 min @ 150 W; Automatic Voltage Regulation (AVR): No; Battery Recharge Time: 8 h.