Here is the situation that I have run into for the past 2 nights:
I leave work and all is well, severs happily humming away everyone has access, life is good. I get in the morning, and the only thing I hear is a loud screech from my APC XS 1300 battery backup with the warning "F01 see manual". I turn off the battery backup, and restart it, everything restarts just fine and all is back to normal for the rest of the day.
All outlets on this UPS are used. the load on the LCD screen shows 4 bars(80% I'm guessing) and the battery is showing a full charge when it starts back up. I have 4 servers, a modem and a switch, a KVM switch and a monitor plugged into it. 3 of the servers are Dell Poweredge 1900, and the other one is a poweredge 840.
I cheched the scheduled tasks on all servers, and the 840 and one 1900 have no scheduled tasks. one has a data sync to run at 1AM and the other has a data backup to run at 11PM. According to the event logs everything shut down at 2:49AM one night and 2:42AM the next night.
I did not install or configure these servers, so I've been learning about them as I go.
Sorry I had to write a book. I thank everyone in advance for your help, and if you need more information let me know.