Uninterruptible Power Supply - 800 VA / 480 W, Off-line, 2×Schuko The Fortron Nano 800 backup power supply protects your computer and other sensitive technology from power outages. At the same time, it eliminates the risk of overloading or voltage peaks. The compact backup power supply is suitable primarily for homes and offices.The device delivers up to 480W of power. When connecting a standard PC with a power input of 120W, the backup power supply lasts for up to 15 minutes. So you can complete your work, save open files and shut down your computer safely. After the power supply is restored, the battery pack automatically starts charging to full capacity.