So apparently I had an 8 minute long power failure a few days ago. Luckily the old APC UPS I garbage picked years ago carried through, as per apcupsd. No gap in uptime in any of the machines running on it.

Power is pretty reliable here, I haven't had a power failure lasting an hour or longer in a while. But it does flicker now and then.

@toroidalcore
Do you hav a writeup on your junkyard ups?

@paulgatling Okay, I dug out some pictures from when I was messing with this. It looks like the old batteries had a 60 A fuse, which is kind of oversized.

I got two bigger batteries and wired them to a Powerpole connector, so I could move them independent of the UPS.

#UPS #batteries

@paulgatling I basically put a hole in the side of the chassis, and ran another wire out. It was really just a Powerpole extension cord.

As an aside, most of my DC stuff is 12 V, for which I use red and black Powerpoles. I kind of have a color scheme, and use yellow and black for 24 V, and green and black for 36 V. That's just me. Pick something that makes sense and stick with it.

#UPS #batteries #DCPower