Which model did you have? I had a CyberPower and it should act as a junior voltage filter itself. 124V should NOT trip it up.
That said, the front panel got wonky after a short while, and while it did fine on power interruptions, the battery wore out quickly. I went with an APC this time.
I used to use U.P.S.s back in the 90s and 2000s. I got tired of the batteries dying after 3 or 4 years. You could buy battery packs cheaper than the U.P.S. unit, but it’s still annoying to get only a few years out of them, and the more economical units would only give you power for 10 or 15 minutes. Never felt like a worthy investment. Maybe they have improved since then?
Thanks much for all the good comments. Gave me some stuff to think about. I’m reasonably sure the battery is OK, as if I unplug the thing, the computer will run OK. I haven’t done a full powerfail test on it recently, but might just do that tonight to validate the battery.
I have one that is about a year older that I have hooked up to my media player and stereo, and it doesn’t drop like this one. I have noticed a =very= slight blip in music playback when power drops on my desktop one, so it does seem like =something= is going on with my house power.
Using the ‘pwrstat’ tool from Cyberpower to query it, I see the following.
The UPS information shows as following:
Properties:
Model Name................... LX1500GU
Firmware Number.............. BF014xxx
Rating Voltage............... 120 V
Rating Power................. 900 Watt(1500 VA)
Current UPS status:
State........................ Normal
Power Supply by.............. Utility Power
Utility Voltage.............. 122 V
Output Voltage............... 122 V
Battery Capacity............. 100 %
Remaining Runtime............ 94 min.
Load......................... 72 Watt(8 %)
Line Interaction............. None
Test Result.................. Unknown
Last Power Event............. None
Unfortunately, Looking at the configs for ‘pwrstat’ there doesn’t seem to be an option for its sensitivity.
I’m going to try to see if opening a TT to Cyberpower does any good, and will try running a self-test tonight as well.
Again, thanks all. Hopefully I won’t have to buy a new one.