UPS still fails when actual black out happens.

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sumomiggy

sumomiggy

Apr 15, 2025
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Hey everyone! I was hoping if any UPS Master's/Engineers/Supports here I just want an opinion on your end on why this is happening since the UPS are quite new and they are encountering this kind of issue. We want some insights on why and how this is happening since we already reached out to the Building support in our location and to let them check the outlets to verify if the issue is in the outlets but as per their report the outlets were good. Maybe you can shed some light(issues on the UPS) on this matter.

Model: BVX650I-PH

#When did the issue start?

March 8 2025 and April 6 2025

#When was the unit installed?

- October 4, 2024

#When was the unit purchased?

- September 10, 2024

#What devices are attached to the UPS prior to the issue of the UPS?

- ThinkCentre M93p(i5 4th gen) Lenovo System Unit, Acer Mouse & Keyboard, Acer Monitor(24 inch) and a Jabra Headset.

#Where is the UPS connected? Is it plugged directly to the wall power outlet, extension cord, AVR, etc..?

- Plugged in directly to the wall outlet.

#What Troubleshooting steps have you done so far? Can you share the said basic steps?

- We tried the UPS again with the same load as during the blackout and unplugged in after and saw that the UPS handled the load. But during the blackout it did not.
 
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sumomiggy said:
Hey everyone! I was hoping if any UPS Master's/Engineers/Supports here I just want an opinion on your end on why this is happening since the UPS are quite new and they are encountering this kind of issue. We want some insights on why and how this is happening since we already reached out to the Building support in our location and to let them check the outlets to verify if the issue is in the outlets but as per their report the outlets were good. Maybe you can shed some light(issues on the UPS) on this matter.

Model: BVX650I-PH

#When did the issue start?

March 8 2025 and April 6 2025

#When was the unit installed?

- October 4, 2024

#When was the unit purchased?

- September 10, 2024

#What devices are attached to the UPS prior to the issue of the UPS?

- ThinkCentre M93p(i5 4th gen) Lenovo System Unit, Acer Mouse & Keyboard, Acer Monitor(24 inch) and a Jabra Headset.

#Where is the UPS connected? Is it plugged directly to the wall power outlet, extension cord, AVR, etc..?

- Plugged in directly to the wall outlet.

#What Troubleshooting steps have you done so far? Can you share the said basic steps?

- We tried the UPS again with the same load as during the blackout and unplugged in after and saw that the UPS handled the load. But during the blackout it did not.
Click to expand...
First possibility is that the battery has failed. If this previously supported your system, that is the most likely scenario.
If you live somewhere that has frequent power issues, then the battery life can be significantly shortened.
 
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kanewolf said:
First possibility is that the battery has failed. If this previously supported your system, that is the most likely scenario.
If you live somewhere that has frequent power issues, then the battery life can be significantly shortened.
Click to expand...
Thank you Sir kanewolf Yes we have frequent power issues here but I'm just confused on why the other UPS was not affected. And on my simulated blackout everything was fine. UPS handled it perfectly was just confused...
 
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sumomiggy said:
Thank you Sir kanewolf Yes we have frequent power issues here but I'm just confused on why the other UPS was not affected. And on my simulated blackout everything was fine. UPS handled it perfectly was just confused...
Click to expand...
The "blackout" may have not been a instantaneous event. The UPS may have been compensating for low (or high) voltage for some time prior to the complete loss of power. The other question would be "for how long"? The UPS may support your PC for a few seconds or a min before shutting down.
That is a pretty basic UPS. It only has LEDs for status. Have you looked at the user's manual to see if the LEDs provide any insight -- https://download.schneider-electric...User+guide&p_File_Name=BU+UM+990-91400_EN.pdf
 
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kanewolf said:
The "blackout" may have not been a instantaneous event. The UPS may have been compensating for low (or high) voltage for some time prior to the complete loss of power. The other question would be "for how long"? The UPS may support your PC for a few seconds or a min before shutting down.
That is a pretty basic UPS. It only has LEDs for status. Have you looked at the user's manual to see if the LEDs provide any insight -- https://download.schneider-electric...User+guide&p_File_Name=BU+UM+990-91400_EN.pdf
Click to expand...
I just checked that out now and I remembered we plugged the pc and monitor below the labeled 'E' on the picture maybe that is my solution will check tho sir.
 
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So first it appears the UPS uses a very common 9ah battery. I am not 100% sure though since there are a couple similar models of UPS. The batteries are in the $20 range.

It is strange that you can unplug it from the wall and it works fine but on a real power failure it immediately stops.
 
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bill001g said:
So first it appears the UPS uses a very common 9ah battery. I am not 100% sure though since there are a couple similar models of UPS. The batteries are in the $20 range.

It is strange that you can unplug it from the wall and it works fine but on a real power failure it immediately stops.
Click to expand...
right? I contacted APC Support for that but they still haven't responded for almost a week now which sucks, that's why I'm here on different forums to gather some insights to provide to my boss lol
 
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bill001g said:
So first it appears the UPS uses a very common 9ah battery. I am not 100% sure though since there are a couple similar models of UPS. The batteries are in the $20 range.

It is strange that you can unplug it from the wall and it works fine but on a real power failure it immediately stops.
Click to expand...
I also checked the manual, it says here https://download.schneider-electric...User+guide&p_File_Name=BU+UM+990-91400_EN.pdf

Page 2 in the Features you can see Labeled 'E' it says that Battery Backup and Surge protected outlets but I did a testing awhile ago where I plugged in the monitor to the labeled 'E' outlets and plugged the system unit below outlets of labeled 'E' and there were fine. I mean I'm really confused.
 
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sumomiggy said:
right? I contacted APC Support for that but they still haven't responded for almost a week now which sucks, that's why I'm here on different forums to gather some insights to provide to my boss lol
Click to expand...
The battery should be easy it is purely a matter of getting one the proper physical size. The ones I saw appeared to be the most common UPS battery used. The other thing you look for is if the terminals are t1 or t2. I think it uses 9ah batteries but if you can find 10ah ones that are the same physical size it will give you a bit more run time.

Now if it is not the battery then you suspect some very strange issue with the UPS. Warranties for UPS are close to worthless. Most companies require you to pay shipping which is very high for a UPS and there are special add on charges because it has batteries.
 
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bill001g said:
The battery should be easy it is purely a matter of getting one the proper physical size. The ones I saw appeared to be the most common UPS battery used. The other thing you look for is if the terminals are t1 or t2. I think it uses 9ah batteries but if you can find 10ah ones that are the same physical size it will give you a bit more run time.

Now if it is not the battery then you suspect some very strange issue with the UPS. Warranties for UPS are close to worthless. Most companies require you to pay shipping which is very high for a UPS and there are special add on charges because it has batteries.
Click to expand...
I doubt I can find 10ah batteries here sir bill, yeah RMA would be our last resort tho, the reason why im asking around is that we need to report to our big boss on why is this happening cuz its still quite new and its doing something like this which is weird. And im gathering different insights from people lol Thanks brother!
 
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geofelt said:
APC offers software called PowerChute that interfaces with the ups and your PC via a ups connection.
https://www.apc.com/us/en/support/product-support/ups-management-software-guide.jsp

It gives you history of events, current usage ,temporary interruptions and a test option.
It can trigger a graceful shut down when power os out and the battery nears empty.
I found it very useful.
Click to expand...
That specific UPS does not have any monitoring port ( USB or RS232 ) so power chute won't help.
 
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I had a similar issue with my UPS. It would fail to work during actual blackout, but if I simulated it by switching off the mains power manually, it would work just fine. It would power the PC for 15 minutes before shutting off. My PC uses roughly 400W of power and powered by 650W PSU (thank you so much for the kind forum users here who helped me caluclate it years ago), and the UPS was rated for 650W.

Now I might be wrong, but I was told the issue was there could be random "spikes" during actual blackout that wasn't there during the simulation, in which the power might run beyond the rated 650W for a very short time, which would trip the UPS. I switched it to a 1000W PSU (still the same brand) and the problem went away.

I'm sure I got so many of the terminology wrong.... When it comes to electricity stuff, all I know is "don't touch, touch hurt, ooga booga" caveman knowledge, but that was my solution.

EDIT : got the words PSU and UPS mixed up in some places, sorry
 
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Exploding PSU said:
I had a similar issue with my UPS. It would fail to work during actual blackout, but if I simulated it by switching off the mains power manually, it would work just fine. It would power the PC for 15 minutes before shutting off. My PC uses roughly 400W of power and powered by 650W PSU (thank you so much for the kind forum users here who helped me caluclate it years ago), and the UPS was rated for 650W.

Now I might be wrong, but I was told the issue was there could be random "spikes" during actual blackout that wasn't there during the simulation, in which the power might run beyond the rated 650W for a very short time, which would trip the UPS. I switched it to a 1000W PSU (still the same brand) and the problem went away.

I'm sure I got so many of the terminology wrong.... When it comes to electricity stuff, all I know is "don't touch, touch hurt, ooga booga" caveman knowledge, but that was my solution.

EDIT : got the words PSU and UPS mixed up in some places, sorry
Click to expand...
yeah that could be the case, but man I still dont know yet lmao!!!
 
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