I've got a new UPS for my computer and I experienced the first power outtage today. I had previously tested the battery once fully charged by shutting the appropriate breaker down and it went on battery just fine.
But this morning, I had a power failure that lasted for a couple seconds then came back for 1-2 seconds and went away again. On the second time, everything that was plugged into the battery outlets shutdown.
Could it be that when the power came back and went away again, the UPS was still "switching" its output from battery to wall electricity and I just got unlucky or is my unit possibly defective?