I have a question about: CyberPower 1500VA / 900Watts True Sine Wave Uninterruptible Power Supply (UPS)

[chrcoluk]

A server grade UPS would give you more runtime but also cost more $$$$.

 

[Shrek]

PWM UPS user here who has run AC fans on miners in the past: yeah, they run. Slight reduction in speed but nothing to fret over.

They start up from rest just fine on the UPS?

 

[R-T-B]

They start up from rest just fine on the UPS?

never actually tried that. They were for a safe and cool shutdown sequence of a mining rack many years ago.

 

[Shrek]

Just wondering, and I appreciate all the real-life experiences.

 

[cvaldes]

A server grade UPS would give you more runtime but also cost more $$$$.

OP seems more inclined to spend less. He/she has gone from a desired goal of gaming for 30 minutes to just shutting everything down in 30 seconds.

And also from the original 1500VA unit at $150 (which incidentally is a bargain) to a much lower specced 850VA unit for $80.

 

[chrcoluk]

OP seems more inclined to spend less. He/she has gone from a desired goal of gaming for 30 minutes to just shutting everything down in 30 seconds.

And also from the original 1500VA unit at $150 (which incidentally is a bargain) to a much lower specced 850VA unit for $80.

Yeah your prices are amazing, 1500va at $150 is a great deal.

My UPS on my NAS/proxmox (5600g rig) is only 390w, but the machine now without a discrete GPU typically uses 35-50w, and I have it on auto shutdown as well. Its runtime is not too dissimilar to the one in my bedroom which has more powerful stuff attached. This 390w is the cyberpower value pro and cost me more than the 1500VA unit does in america.

 

[R-T-B]

Just wondering, and I appreciate all the real-life experiences.

In that line of thought, here's a test I ran prompted by your PM, for public thread data purposes:

I just ran it with a cheap honeywell personal / smaller radius room size AC fan and it spun up fine. Don't have any other fans to test with, sorry. I tested on battery at full speed for spinup. Fan below:

https://www.amazon.com/Honeywell-HT-900-TurboForce-Circulator-Black/dp/B001R1RXUG

For further data, UPS is a Tripp Lite SMART1500LCDT

 

[Shrek]

SmartPro 1500va UPS System, Tower, 10 Outlets | Tripp Lite
PWM sine wave

That's a pure sine wave and I was wondering about stepped; but I cannot thank you enough for taking the time to try.

 

[cvaldes]

OK, I just checked my box fan. It's a cheap Lasko manufactured in 2003. I bought it at a local hardware store for maybe $15.

I've used it successfully with my current three stepped sine wave UPSes: two APC Back-UPS ES 350 units and one ES 550 unit. Those are all stepped wave. Since this box fan is nearly twenty years old, that means I've used it with other UPSes that have come and gone, most of which likely did not have AVR.

It's worth noting that all of these UPSes have hosted a variety of home theater components, various computing components (including desktop PCs, notebooks), devices of a bygone era (answering machines, faxes), lamps, even the occasional power tool, vacuum cleaner, or iron by laziness or mistake.

The "incompatibility" of electrical devices with these stepped sine wave UPSes is completely overblown IMHO.

 

[Shrek]

How wonderful; I am wrong!

So, the fans could start up by themselves on the stepped wave UPSs? not just run, but start up from rest.

AVR is not relevant.

 

[Bill_Bright]

A server grade UPS would give you more runtime but also cost more $$$$.

One of the problem with server grade UPS is they don't typically have user replaceable batteries. Most are also rack mounted - fine if you have a rack to mount it in.

That's a pure sine wave and I was wondering about stepped

As I noted to you in a PM, the typical 1/2 way decent stepped UPS outputs a wave form with a LOT MORE steps than just the two shown in your very deceptive image. Any decent UPS uses a much greater sample rate to provide many more steps - which results in a MUCH smoother wave form.

And again, it is simpley and totally misrepresentative of reality to focus on the 1% (and likely not even near that) than on the 99% of the time our UPS are in service.

Those stepped vs pure sinewave outputs ONLY come into play when the UPS is running as a battery back up due to a total power outage. Even where I live where power is notoriously unstable, that is rare. 99+% of the time, the connected equipment sees the pure (more or less) sinewave from the wall.

 

[cvaldes]

So, the fans could start up by themselves on the stepped wave UPSs? not just run, but start up from rest.

Well yes. How else are they going to run?

You plug it into the UPS and turn the switch to on. Fan blades start spinning.

No one is going to waste their time trying to MacGyver some sort of weird power transfer system. I wouldn't even know how to do that nor would I bother for a $15 box fan.

If you don't believe up just go to Home Depot, buy a box fan and try it yourself. You can return it tomorrow.

 

[Shrek]

You plug it into the UPS and turn the switch to on. Fan blades start spinning.

The UPS needs to be unplugged when this is done.

I have fans, I have UPS units; what I lack is batteries; it is essential that the UPS is running off its battery.

As I mentioned earlier, my target is the heating system induction motor pump, so I could keep the pipes from freezing during an extended outage; the fan was just a convenient way to perform the test.

I imagined it would be trivial for someone to try.

 

[Space Lynx]

The UPS needs to be not plugged in when this is done.

I have fans, I have UPS units; what I lack is batteries; it is essential the UPS is running off its battery.

everyone keeps saying the batteries are expensive, but in all honesty buying this every 2-3 years doesn't seem like a bad deal for $53...

Tripp Lite 4U UPS Replacement Battery Cartridge 192VDC for select SmartOnline UPS Systems 1 set of 16 - UPS battery - - RBC51 - UPS Battery Replacements - CDW.com

Buy a Tripp Lite 4U UPS Replacement Battery Cartridge 192VDC for select SmartOnline UPS Systems 1 set of 16 - UPS battery - at CDW.com

www.cdw.com

 

[Shrek]

One can get them for much less than $53, more like $20

 

[Space Lynx]

One can get them for much less than $53, more like $20

https://www.costco.com/.product.1350936.html

I went to cyberpower website, and there is no battery replacement for this true sine wave model that is in the topic title... hmmm odd...

might be worth it to spend $220 and get the same Tripp Lite one that @R-T-B has since the battery replacements are possible and cheap. @R-T-B the one you linked, is it true/pure sine wave?

 

[sam_86314]

https://www.costco.com/.product.1350936.html

I went to cyberpower website, and there is no battery replacement for this true sine wave model that is in the topic title... hmmm odd...

might be worth it to spend $220 and get the same Tripp Lite one that @R-T-B has since the battery replacements are possible and cheap. @R-T-B the one you linked, is it true/pure sine wave?

Batteries tend to be standardized.

My UPS takes batteries like these ones.

https://www.amazon.com/ExpertPower-Standard-Rechargeable-Battery-EXP1270-2/dp/B00AAZJ9Y8?th=1

 

[MentalAcetylide]

Being that I have my system upstairs, I couldn't imagine having a heavy lead acid battery APC that would weigh 180+ lbs. No freakin way. I had no choice but to go with a much lighter unit. I ended up getting a Liebert PSI5 series to power/protect a 1600-watt system + monitor + speakers that lasts long enough to power everything for around 10 minutes so that it can be shut down safely until the generator kicks on. The nice thing about it is that it only weighs around 40 lbs. That's one good thing about lithium ion batteries.

 

[Space Lynx]

Being that I have my system upstairs, I couldn't imagine having a heavy lead acid battery APC that would weigh 180+ lbs. No freakin way. I had no choice but to go with a much lighter unit. I ended up getting a Liebert PSI5 series to power/protect a 1600-watt system + monitor + speakers that lasts long enough to power everything for around 10 minutes so that it can be shut down safely until the generator kicks on. The nice thing about it is that it only weighs around 40 lbs. That's one good thing about lithium ion batteries.

if i buy the one in my topic title the cyberpower true sine wave, is that lithium or lead acid?

 

[1freedude]

CP1500PFCLCD is model? Then RB1290X2 is the battery cartridge, and the batteries inside are 12v SLA 9ah x2

@Shrek you need an APS (alternate power source). Inverters powering jobsite powertools powered themselves from car and truck batteries caused the "induction motors are bad" ideas. While true an induction motor can have problems starting up from modified sine wave, an easy solution is to add a resistive component to the circuit. A hundred watt incandescant bulb works in this case. I suggest you get a small generator, not a UPS.

 

[Shrek]

That confirms my suspicion; didn't know about the 'resistive trick' and I do have a sine-wave UPS

Much appreciated

 

[cvaldes]

The UPS needs to be unplugged when this is done.

I have fans, I have UPS units; what I lack is batteries; it is essential that the UPS is running off its battery.

As I mentioned earlier, my target is the heating system induction motor pump, so I could keep the pipes from freezing during an extended outage; the fan was just a convenient way to perform the test.

I imagined it would be trivial for someone to try.

This is wrong.

Once I plug a UPS into the wall socket, it stays there until I move it. That's pretty infrequent since I've been living in this small 650 sq. ft. 1BD condo for nearly 15 years. Most of the outlets where I'd plug in a UPS already have a UPS. I assure you that I plug and unplug various devices (including fans) into my various UPSes without unplugging them first.

In fact, this is the first time I have ever heard of this blathering.

I never know if my UPS is running on batteries or not.

Most of these cheap non-AVC units aren't running off of batteries anyhow from the outlets clearly marked "Surge Protection Only".

Let's face it, fans aren't that finicky about their power source.

Again stepped sine wave UPSes have been around for three decades and have hosted a bunch of motorized devices.

Do as I suggested and go buy a cheapass fan at Home Depot and plug it into your UPS. It will work.

 

[sam_86314]

Out of curiosity, I plugged a small fan into my APC BackUPS CS 350 (an older UPS that undoubtedly uses a simulated sine), unplugged the UPS from the wall, and turned the fan on.

While the motor did buzz quite a bit, the fan started up fine and got up to speed.

EDIT: Tried it again, the fan does slow down when on battery and it buzzes. It doesn't buzz when connected back to AC.

 

[Shrek]

Pump won't start on power from Inverter — northernarizona-windandsun (solar-electric.com)
"for pumps, you really need to use pure sine inverter"

 

[FordGT90Concept]

Playstation 5, 55" OLED tv, 6700 XT computer, all plugged in to it and running at the same time, both the console and pc playing a game?

Should be less than 900w (assuming the computer isn't over-volted) so it wouldn't trigger the over current protection.

lets say power went out would all my stuff still stay on for at least 30 minutes giving me time to turn it off properly and unplug it from wall until power comes back on?

You'll get like 5 minutes and even that might be optimistic. If you want long run times, you need a generator. UPS are only intended to fill in gaps, not endurance. If you don't have problems with gaps in current coming in, there really is no point to having UPS. Keep in mind that UPS have on-going battery replacement costs. It's not a one-off expense.