Which of the following kinds of UPS always runs off a battery?
A) offline UPS
B) UPS utility
C) standby UPS
D) online UPS

Question

Quizplus · Accepted Answer

An online UPS always runs off a battery because it continuously converts AC power to DC power, charges the battery, and then converts the DC power back to AC power for the connected devices to use. This provides uninterrupted power to the devices even during power outages or disturbances. The other types of UPS (offline, standby, and UPS utility) only switch to battery power when the input power fails, so they do not always run off a battery.

Which of the Following Kinds of UPS Always Runs Off