I have been at my currently work place for nearly a year and have finally had a chance to go around and locate all the UPS's we have, take note of serial and model numbers and perform battery self tests.
What I have found is the following
Eaton 5PX 3000VA 24 minutes of run time approximately four years old
Eaton 5PX 3000VA unknown minutes of run time (must have forgotten to record) approximately four and a half years old
APC Smart-UPS X 3000 1 hour and 27 minutes of run time and approximately eight years old
What do people generally consider to be the lifecycle of a UPS? The eight year old APC apparently doesn't need battery replacement until...