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I would say that unless power cuts are extremely common in your part of the world, and/or you have mission-critical equipment that cannot be turned off, a UPS is a waste of money. A UPS large enough to run heavy hardware for a significant amount of time (an hour or more) does not come cheap. I have surge protectors on all my equipment, and that's it.
Power cuts are extremely rare in my part of the world, so I don't really worry about them. I use laptops (attached to desktop monitors) for my work, so they have a "built-in" UPS. The local telephone company provides internet over fiber, and if that ever goes down (it hasn't yet...) I have a large enough data package on my mobile phone that I can use it as a backup.
The only things that I would need to power via UPS are the Wi-Fi access point and the fiber router, and for those tiny loads any UPS will do. Adding the desktop monitors would require a slightly larger UPS, but for the few minutes of power cuts a year I can work quite well with the laptop and a mobile phone connection.
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
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I was going to write exactly that ! I second every word of it.
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I agree with Dan, for all the same reasons.
I lost power during hurricane Beryl which drained the UPS batteries.
The only thing critical was WIFI access.
My laptop and it's battery system did most of the heavy lifting for internet access via a computer.
Used my Jackery battery and small battery bricks for small TV and phones.
"A little time, a little trouble, your better day"
Badfinger
modified 11-Sep-24 0:28am.
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My $0.02, worth less.
If you have frequent outages, and you are running desktop system(s) you should get one. Most will keep your system up long enough to ride out brief outages. Some have software to shut your Windows system down. Keep in mind that, if you drop power while the system is writing to disk, it could corrupt the disk. This exposure is limited if your disks are SSD. We have a mixture of APC and Cyberpower rack mount 1500VA units. All work well, until they don't, and you find out the hard way. We recently had a 4 hour outage and one of the units shut down immediately. Another stayed up long enough for me to shut down 4 virtual servers and the hardware server. Run time is determined by the number of batteries. We replace batteries every 4 years, a couple of the units are over 10 years old. Rack mount units have 4 batteries. I will probably replace the failed unit with APC but the difference seems mute.
>64
It’s weird being the same age as old people. Live every day like it is your last; one day, it will be.
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I had frequent power cut issue, I thought about UPS but then after some r&d I got Inverter,
all devices are powered up not only pc 
=====================================================
The grass is always greener on the other side of the fence
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What's the basic idea? What do I really need?
A drink 
Seriously though, I've never come across one I could reccommend.
In a closed society where everybody's guilty, the only crime is getting caught. In a world of thieves, the only final sin is stupidity. - Hunter S Thompson - RIP
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The basic idea is to prevent hard shutdowns on your system and hopefully, allow you time to save any work in progress. If you are looking for something that will allow you to keep working normally for more than 10 minutes, you need to look for something else...besides, mine beeped constantly when the power was out...not something I could tolerate for long.
I've never used one on a development system, only on my h/o server. The dead battery for that UPS has been sitting on my desk since it quit about 3 months ago. There have been a couple of short outages during that time, but no problems with just doing a reboot.
Before you buy another one, consider that OS's do a better job these days and managing corruption at even unsaved files/work. Is it really worth it? Also, unless all of your networking gear is also routed through the UPS, internet access isn't available anyway.
"Go forth into the source" - Neal Morse
"Hope is contagious"
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Keep in mind that consumer grade UPSes are only designed to last long enough for you to cleanly power down your system, not to run for multiples of tens of minutes.
Personally, over time, I've collected enough spares that I have one UPS running my monitors and network equipment, and another running just the one main PC. With the load split up in this way, I can keep going for 30-40 minutes, which is typically plenty of time to ignore the power outage and just keep going until the power comes back up. But if the UPS running the main PC goes under 10 minutes, that's when I'll proactively shut it down.
Is it worth it? Assume someone will yank the power cord out of your PC with no warning. If you're not likely to be running something you care enough about that it must be saved...then you can probably go without. Otherwise, like backups, you'll miss it on those rare occasions when you really, really need it.
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As a start, list everything you have plugged into the UPS now, and might possibly in the future. I typically want all of my equipment protected from surges, but not all of them need to be powered all the time. For instance, it used to be common knowledge that dot matrix printers draw a huge amount of power, and hardly anyone wants to print in the dark, anyway. You still wanted it protected from surges, but there was no need to have it on a UPS. That's why most UPSs have some outlets labelled "Surge only" or something similar.
On a tag somewhere on every piece of equipment you have, there is a power rating. It should include the voltage and the current used by the device. For each unit, assuming they all use the same voltage, add up all the amps and write that down. Now you go shopping. How long do you want the UPS to be able to carry you? An hour, 5 hours? Multiply the total load amps by the number of hours you want to run. Any decent UPS should tell you the Amp-hours it can provide. If not, it should show the equivalent in VAh or volt-amp-hours. You can get that figure by multiplying your desired amp-hours by the line voltage for your devices.
Not to confuse things, I've seen a few that tell on the box the Ah rating of the internal battery - that's not the same as the Ah you get out of it, since the battery is probably running at 12V or 24V, and your devices run on 120Vac or so. When in doubt, go bigger. At a minimum, you should have your PC, monitor(s) and comms gear on the USP. Most other devices you probably won't need during an outage, but will want to protect from surges.
For the most part, I've stuck with APC for the past 20+ years. I've found their quality to be consistently good, and reliability excellent.
Will Rogers never met me.
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It's mistaken for actual intelligence. It's the same thing tiny children do.
For instance, I go to a master carpenter and tell them how to do their job because I saw one YouTube video telling me something and the carpenter didn't use that trick on my home. Maybe it's a cool trick. Maybe I don't know the context. Maybe the carpenter doesn't need to use that trick due to raw skill. Maybe the carpenter can pick up a new trick. Who knows...
But, I'm a pseudo intellectual with no self-awareness. And, I'm here to argue baby... even though I have no idea what I'm doing. I watched one YouTube video. Kneel before my knowledge. I must know more than the master carpenter with decades of experience.
Welcome to the Internet!
Jeremy Falcon
modified 9-Sep-24 13:49pm.
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Carpentry is less risky, but for medical symptoms, search engines should start showing Statutory Warning in bold red letters:
"This is only a computer diagnosis. However advanced my AI is, please please please consult a human doctor before taking medicine, and don't prompt or suggest to that human doctor with my computer diagnosis".
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Amarnath S wrote: and don't prompt or suggest to that human doctor with my computer diagnosis
Why?
"In testa che avete, Signor di Ceprano?"
-- Rigoletto
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So as not to influence the doctor. The doctor will have his/her way of thinking, diagnosing. Which I feel should not be interfered with.
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So you wouldn't interfere with a possibly wrong diagnosis?
"In testa che avete, Signor di Ceprano?"
-- Rigoletto
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I would wait for the doctor to make their diagnosis, then (possibly) ask if he/she had considered the computer's diagnosis.
If you don't trust the doctor to do their best, why do you bother going to them?
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
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Daniel Pfeffer wrote: I would wait for the doctor to make their diagnosis, then (possibly) ask if he/she had considered the computer's diagnosis.
This is a good approach, in my opinion.
Daniel Pfeffer wrote: If you don't trust the doctor to do their best, why do you bother going to them?
Most people here have practically no choice, even if their doctor is mediocre, they stick with him/her.
I do trust my doctor (I am lucky, he is above the average). However, his best could be not the absolute best.
"In testa che avete, Signor di Ceprano?"
-- Rigoletto
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The analogy is a court of law. Have heard that a lawyer asking a leading question is generally frowned upon.
Similarly, if I as a patient, based on my search engine results, ask the doctor "Is ... condition possible, doctor", then it's like a leading question, and may make that doctor think only along those lines; we would like the doctor to have a "360-degree" approach - meaning "What all is possible, and how can I rule out something?". Asking a leading question would possibly narrow down the doctor's choices towards an incorrect direction. This is what i meant.
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And then you find out your doctor is consulting the same AI.
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100% agree, buddy.
Jeremy Falcon
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This is why I only go to places like WebMD and Mayo Clinic when I'm looking for medical advice. At least I know these two sites are backed and maintained by top notch medical systems.
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Pseudo intellectualism sounds a bit pseudo-intellectual...
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Ha ha ha. It was a cool phrase man. That's my story and I'm sticking to it. 
Jeremy Falcon
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At some point, there must be a tipping point where pseudo stops being pseudo and becomes real. I suspect that there's no hard delineation there, but it's interesting to think that there's a grey area where one slips over into the other.
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Long time no see, buddy. And totally agree. But, two things to consider...
1) Experience is the real teacher in life. You cannot really learn something until you go through it. Let me give an analogy. You can read about heart break in books or watch YouTube for a year. You may think you're an expert. Nothing will prepare you for the real thing. Experience.
This doesn't mean don't read, but even Einstein agreed there is another tipping point where books can do just as much harm as reading nothing at all, when they become a crutch. At some point, you need to apply that knowledge to really learn.
2) There's no guarantee the master carpenter isn't also studied and experienced. Maybe they haven't kept up and you do surpass them. I've met a lot of ignorant doctors for instance. But without that experience there are things you really don't know and never will... maybe like why things are the way they are. And it's folly to assume before you even talk to them that your YouTube videos makes you better. As in, a real intellectual will ascertain first.
Now, you can learn from other people's experience, but you also have to actually talk to them rather than insult them before speaking to them because you watched a video. Which never happens online. It's just an ego trip by most from what I've seen.
Jeremy Falcon
modified 9-Sep-24 10:58am.
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