I will never buy another CyberPower UPS
blog.networkprofile.org
blog.networkprofile.org
That scared me of of APC. The unit should have shut down before letting itself get that hot.
Wny? It already warned you something was wrong, for weeks. There's a reason you don't ignore problems with battery-powered equipment.
>I realized it was uncomfortably hot.
That barely registers on the electronics hardware scale of "what is too hot". When you yank your hand away, shake it, and go "ooof, that's hot", that's too hot ;)
My Cyberpower metered PDU[1] shows my equipment using 1.8 amps consistent.
[1] https://www.cyberpowersystems.com/product/pdu/metered/pdu15m...
Picture of the UPS: https://sponaugle.com/newhouse/IMG_7342s5.jpeg
Build thread that talks about it: https://www.garagejournal.com/forum/showthread.php?t=409988
[1] https://www.garagejournal.com/forum/showthread.php?t=409988
I analyzed things and the UPS was making the computer go down and it hadn't lost power.
I removed the UPS and it has been rock solid.
The UPS vendors don't highlight the fact that basically anything you buy retail is "offline/standby" and that there are lots of downsides to these types (a lot of them switch off if the battery goes dead even if the AC is still live).
Double-conversion UPS systems are the best, but they have loud fans, so are not really suited to home or office use.
Most people who care about a UPS, probably want what is called "line-interactive". It's a decent tradeoff of features vs heat/fan noise for most people.
It's a UPS and it should "just work", right? <grumble>
UPS company marketing folks should all wind up tarred and feathered for not pointing out the uselessness of their "standby/offline" UPS systems.
I understand that it seems that every brand has downmarketed to at least walmart quality in most consumer goods, but that is a failure of branding and business/product management. Well, and the fact that once a consumer product "brand" hits a bump, it gets scooped up for its previous reputation and then stamped on junk.
It really is depressing that the internet has not produced some sort of historical tracker of brands (or politicians) and their actual quality and reputation scores.
Maybe consumer reports, which probably has more historical data than anyone in this regard, could produce something like this.
Solved.
> I bought a UPS without reading the spec because i thought it‘s uninterruptible (it has a U in it...) and then I never tested it‘s functionality over years. Now I think it‘s the suppliers fault that it did not work.
There was another article that was a rant against a UPS supplier because it did not work anymore after a long time without checking.
IMHO, a UPS is a device for _professionals_. It‘s not something one just buy and install-and-forget. It‘s something that needs regular maintenance and testing. It’s like a car. It’s not just driving, it’s also about checking the tires, dilling up gas, ... It might get advertised to you differently, but it‘s not that easy.
Of course you need to check carefully that your particular PSU can operate like this before trying it.
Alternatively surely there should be a market for PSUs that accept 12 V or 24 V input so that they could be driven directly from single car or truck batteries. Or the equivalent lithium ion or whatever else is the best available technology of the moment of course.
I know that's something google did with its servers -- it would put a battery on each motherboard and have an onboard UPS integrated with the system.