Am shopping for a UPS for a ~300W build.

Mostly the server idles around 55-60W, and goes high-200W during gaming in VM (seen around 280W); spikes to ~120W when array is started at idle.

This UPS would have to serve this build, and also the modem/router ISP has given. Haven't measured, but guess it averages around 10W.

 

Is this  APC BX1400U-GR a reasonable choice? 700W might be bit of an overkill, but offers chance for heavier workload in the future.

Note my aim is to allow at least 2min of runtime prior to initiating the shutdown. At 300W load the manufacturer estimates 14min of runtime, which gives plenty of buffer as well, so if server gets shut down within 5min, the battery wouldn't get extensively depleted.

 

 

Edited August 26, 20205 yr by tuxbass

Sounds like a good choice. The tradeoff is efficiency vs. longevity. The closer to capacity, typically the more efficient and less waste heat, however, running close to capacity means the batteries get depleted quickly and consequently have a much shorter service life.

 

I prefer to err on the side of longevity, I figure the few extra watts of power wasted is worth not having to buy replacement batteries as often.

Cool, thanks. Will give that unit a go 👍

If you can, find an APC Smart-UPS, as they're pure sinewave, not stepped.

Some things in here do not react well to bullets.

Some machines and their power supplies do not react too well to stepped waveform UPSes.