Has anyone else had any issues running an iMac on a UPS? We have a graphic artist that uses an iMac and when there is a power interruption the UPS displays that there is about 30 minutes or so of batter life. It runs for 2 to 5 minutes and then shuts off. I would blame the battery in the UPS but we have tried 3 different ones and 2 of them are fairly new. These are 1500 VA / 900 Watts.
Hello @xxJackxx Any Apple iMac should demand less than 100 Watts @ 120VAC. Knowing the iMac's Model Identifier could provide a more accurate number. Menu -> About This Mac -> Overview Tab -> Software Report... Button -> ˅Hardware -> Hardware Overview -> Model Identifier Is the un-named UPS' output also being loaded with any additional 120VAC devices? For the sake of troubleshooting, can the UPS in question be exchanged with another? HTH
This is the third one we tried. They are all only a few months old and this model: https://www.cyberpowersystems.com/product/ups/intelligent-lcd/cp1500avrlcd/ There is a second monitor attached. That's it and it should work. I'll have to double check it with other equipment but meetings took too much of my time today.
Have you tried using the cyberpower software -- PowerPanel® ? It allows the user to determine how long the PC runs on battery power before shutting down. https://www.cyberpowersystems.com/products/software/power-panel-personal/
Hello @xxJackxx What is the power demand of the un-named 2nd monitor? Mistakenly, my interpretation of your original post was that three different batteries were tried. Have all the UPS's tried been the exact same brand & model? If CyberPower's PowerPanel® Personal Mac software was installed, is it up-to-date (v2.3.0) and has that software been parameterized to be overly sensitive? If the PowerPanel software is present and active, are the details of "Runtime Configuration" settings chosen to be too sensitive? After the 30 minutes remaining warning followed by failure in 2-5 minutes, when the UPS is powered back up from shutdown, how much battery life remaining is reported? If all the UPS's were purchased at or near the same time, is it possible those 9Ah SLA batteries are nudging their 3-year end-of-life? Does the CP1500AVRLCD have a built-in battery prognostic/diagnostic that estimates their remaining life? Applicable name brand battery pairs are available at better prices than CyberPower's. Please give second thought to revealing the iMac's Model Identifier. While your there, what macOS and version number is the iMac updated to? If CyberPower's tech support has been contacted, what might they have suggested that's not mentioned above? I know business Fridays can be the death of us, but the devil is in the details. Wait to answer next week if need be. Thank you.
Yeah, Can't do much until next week. I have not installed the software. I don't think the second monitor sucks too many watts. Not sure yet. I'm also planning to test the last one I pulled with a PC to see if it does the same thing.
There could be a compatibility issue between your simulated-sine ups and (perhaps) pure-sine power supply. Can you check that the two are indeed compatible? What is your power supply model? Mrk
It is the UPS but it's not so much that they lie as I think the last batch we got were defective. I tested it elsewhere and it started by reading that it had 90 minutes of runtime and within 3 minutes it was dead. We've had some that were 10 years old and still ran for a half hour. I'll be buying another brand next time.
