Protect all your home and work data safely with a backup system. The APC 2200VA 120V UPS system not only provides sufficient backup power but it protects all your equipment from damaging surges, lightning, electrical disturbances, and spikes that travel along utility and data lines. Features include an automatic voltage regulation (AVR), which instantly adjusts high and low voltages to ensure the levels remain safe, cold-start function, and a self-test that is automatic to check the efficiency of the unit. What's more, with hot-swappable batteries, power remains uninterrupted during replacement. Another unique feature is the notification process that tells you ahead of time the month and year that you should replace the battery.