No, but it can be used as an emergency power source (EPS). Here’s the difference. When your DELTA is plugged into the wall, anything plugged into it gets power from the grid, not its battery. If power from the grid stops, DELTA automatically switches to its battery supply mode within 30 milliseconds. That means anything connected will not have power for 30 milliseconds, which may mean desktop computers and data servers turn off. UPS is not necessary for most devices, but you’ll have to determine this for yourself.