What is an uninterruptible power supply (UPS)?
An uninterruptible power supply (UPS) component contains built-in batteries that provide a few minutes of power allowing sensitive electronic gear to shut down properly during a sudden outage. This helps prevent the loss of personalized settings in your audio/video components, such as channel programming in your satellite receiver. A UPS can also eliminate the need to reset components with internal clocks, such as DVRs, every time the power goes out.
