An Uninterruptible Power Supply (UPS), also called a battery backup, is a device that provides emergency power when the main electrical source fails. A UPS enables the safe and orderly shutdown of computers and connected equipment. Its capacity and design determine how long it can supply power. If a power outage occurs while you are using your computer, the UPS gives you enough time to save your work and safely close programs before the battery is depleted. Without a UPS, any data stored in your computer’s RAM could be lost during an outage. Additionally, a UPS protects your devices from power surges, preventing potential damage to your equipment.