The Lounge is rated Safe For Work. If you're about to post something inappropriate for a shared office environment, then don't post it. No ads, no abuse, and no programming questions. Trolling, (political, climate, religious or whatever) will result in your account being removed.
I've never experienced any such thing in all the years I've had a UPS.
Very good to know.
David Crow wrote:
All electronics have the potential to be dangerous.
I agree. It was just that there were quite a few reviewers mentioning sparks and fires so I wanted to get another random sampling of intelligent users...and even though I wanted intelligent users, I came here to CP. Of course, I am kidding. CP Lounge is really full of a lot of great people with vast years of experience.
Thanks for the info.
I bought a cheap "UPS" from Staples, which was a mistake. No sparks, but it's not a true "UPS" - it takes a few tenths of a second to switch over to battery, by which time the devices on it have powered off.
So, make sure you get a UPS that actually generates the AC from the battery and doesn't do a "switch over" from the mains to the battery.
Can't tell if that CyberPower model does that or not.
but it's not a true "UPS" - it takes a few tenths of a second to switch over to battery, by which time the devices on it have powered off.
Thanks for the info. I was trying to determine the same thing. Is this the option where it is sine wave versus square wave? I just can't tell. The flickers are the exact thing I'm trying to get rid of.
I've owned or managed at least 30 or 40 of those things (2 at home others at companies where I worked for years) and never ever they emitted anything that was not expected.
Thanks for the great info. This is what I was looking for...various people chiming in who've had a lot of experience with them. I too wondered how it would be a valid product if that sort of thing happened even 1 in 10,000. Thanks again.
One additional piece of advice : test your UPS periodically. I work for a rather large manufacturing company and we have UPS' on probably every system in the factories but no one ever tests them so I am willing to bet a majority are useless. The last service call I had to deal with was because of corrupted files that resulted from a power loss where the UPS immediately died because its batteries were shot.
"They have a consciousness, they have a life, they have a soul! Damn you! Let the rabbits wear glasses! Save our brothers! Can I get an amen?"
I have an APC Back-UPS PRO 550. This one is 3 years old. I have had many others over the last 20+ years. Mostly from APC. I used to have hard disk drives fail before that. Never since. The main benefit is the clean power. On the occasions when there is a blackout I get a few minutes of runtime. If I am around at the time I shut the system down cleanly before the juice runs out.
I agree with the other reply that said the main hassle is replacing the battery every few years.
I had several APC over the years. As others have stated, the batteries die after several years. Also I find they don't allow for prolonged used without electricity (the ~USD100 ones can give you power for 15 minutes).
What I've been wondering for my own setup here is whether it would be possible to have some battery powered modems and routers: you would avoid useless conversions (your UPS's battery converted to AC 100/240V then converted back to DC around 5 to 12V).
your UPS's battery converted to AC 100/240V then converted back to DC around 5 to 12V)
I know. I thought about that too and it is very interesting because you could have a very small battery running the wifi router and cable modem since they both have external adapters that convert to 5 or 12 V.
The challenge is to have the battery kick in when the 120V is lost. I've done some Arduino and electronics stuff so I'd like to look into building something.
Outlet spacing matters. Take a look at Power Splitters/Spiders to get those power "wall warts" away from the back and allow more plugged in.
That "everything else" list grows when you get a UPS. My list:
- (CL) Server for Plex, Minecraft, etc.
- (CL) My desktop development rig
- Power spider with speakers, monitor, & USB hub.
- Power spider with 2 Gigabit switches, Vera Edge, HD dock, and phone base station
- Power spider with cable modem, router, & Vonage adapter
- Power spider with 2 WD EX4100 NAS boxes
I'm sure some would call this overloaded, but I figure the wall warts for most stuff I have plugged in don't draw too much and I tried spreading the load across all the outlets.
With the above setup, I just got 46 minutes run time in a test last week on 8 month old batteries. You do need to change batteries every couple years or so.
Be sure to use the monitoring software that comes with the unit you get.
And don't plug in a laser printer to a UPS. Not sure where I heard that advice from years ago, but I stick with it...
I have always had a UPS and never had problems with sparking. The problems I have had are batteries dying after a few years resulting in battery replacement when economical or unit replacement when not, failure to kick in quickly enough form some early APC units and figuring out where to place them and the tangle of power cords.
Last Visit: 31-Dec-99 18:00 Last Update: 10-Apr-21 16:14