

I have three UPSs.
Two at my desk: The smallest for my daily driver NUC, Eaton S3 850VA (510 W max) and enough for that purpose. The second is an Eaton Ellipse Pro 850 (510 W max) for my gaming PC. I want to replace both with a single device that has enough Oomph for both., but yet have to find a suitable model without fan noise at a reasonable price.
The largest is a APC SMT1000 that I got used without batteries, that I use in my rack for networking devices, some additional small devices, a Lenovo m920x and a custom build server (NAS, proxmox etc.). Usually the draw from the wall for that is 200 W. I added LiFePo packs instead of the Pb ones, as they are much more durable: 10 years instead of 2 to 3 years. As LiFePo packs have around 50 % continues load vs the Pb, the UPS ist purposefully oversized.
Where I live, we barely have outages, but they occasionally happen. Around once in two years. So it’s more a peace of mind. Hard to say, how often they in fact ‘saved’ anything.
Edit: Edited battery chemistry to LiFePo. Did an oopsie there. Corrected typo.












I do recommend it, if the circumstances allow it. LiFePo are such a step up in battery technology.
Just a tip for anyone considering it: Make sure to only use packs with an integrated BMS, as most of the shelves UPS models are designed for a different chemistry.
Addendum regarding the desk UPS: I’m thinking about one of the power stations with a < 10 ms switch time. Have yet to find one that plays well with NUT.