Automatic restart of loads after UPS shutdown – Automatically starts up the connected equipment upon the return of utility power. Automatic self-test – Periodic battery self-test ensures early detection of a battery that needs to be replaced. Automatic Voltage Regulation (AVR) – Automatically steps up low voltage and steps down high voltage to levels that are suitable for your equipment. Resettable circuit breaker – Easy recovery from overloads; no need to replace a fuse.