UPS turns off

[jokerl90_apc]

This was originally posted on APC forums on 10/3/2010

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When I shut PC down overnight or when at work, I will find UPS off (no green light, no power to PC) when I return. I have heard the UPS make a single beep sound when in this off state. After I turn the UPS back on and the PC is turned on, the UPS works correctly, the Power Chute software shows no problems. I realize the battery is old (5-years), but the light to replace battery does not light, and the UPS works correctly during AC power outage.
Any ideas?

Model: Back-UPS ES 750 (BE750BB)
Serial number: AB0544144831
Firmware revision: 819.z2.D
USB firmware revision: z2
Last self-test date: Not Applicable
Last battery replacement: 10/29/2005
CPU: Intel Pentium
Amount of RAM: 2,048 MB
Free disk space: 32,953 MB
Software version: PowerChute Personal Edition 1.5
Operating system: Microsoft Windows XP (5.1.2600)

Message was edited by: jokerl90

[jokerl90_apc · Accepted solution]

This was originally posted on APC forums on 10/5/2010

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Yes just doing a normal shutdown from start menu. This just started a week or so ago. Only heard the beep once.
Update; Have not had this problem the last couple of nights. Maybe a problem with AC line voltage that has been corrected?? It's very odd.