Automatic self-test: Periodic battery self-test ensures early detection of a battery that needs to be replaced. Predicitive failure notification: Provides early-warning fault analysis ensuring proactive component replacement. User-replaceable batteries: Increases availability by allowing a trained user to perform upgrades and replacements of the batteries reducing Mean Time to Repair (MTTR) Disconnected battery notification: Warns when a battery is not available to provide backup power. Audible alarms: Provides notification of changing utility power and UPS power conditions