Some CyberPower UPSes may pose a fire hazard
Would be nice to know what other people recommend for UPSs with sine-wave output.<p>Small APC units are pretty crappy by my own experience as well, especially if you go below 700VA.<p>I&#x27;ve used several 1000VA back-ups, smart-ups, and while the build quality is generally ok, the trip time for triggering and voltage upregulation was next to useless (passing &gt;500ms). Many back-ups units tend to trigger the differential. The batteries you get from APC itself are just plainly overpriced.<p>I generally prefer to have many smaller upses nowdays, so I went with a few back-ups rs 500 and two cyberpower (cp900epfclcd).<p>Upregulation of the rs500 is a joke that you cannot rely on. The output quality is &quot;passable&quot; at best. It&#x27;s also a pretty basic plastic case, pretty much like the cyberpower. When powered off, it keeps on flipping the main input relay every 10 seconds until it&#x27;s fully disconnected from the mains.<p>On the other hand I didn&#x27;t own cyberpower units for 10+ years like I did for APC, so I cannot truly comment on that.<p>Can somebody recommend alternatives that truly perform their duty?