Hi folks,
This isn't strictly a Linux question, but since it is to power a Linux machine (or several) I think it is probably close enough. I have several Uninterruptible Power Supplies scattered around the house. A week or so ago, one of them started beeping at me a few times a day to let me know it thought its batteries needed replacing. Since it tended to beep at me (at least when I heard it) at night, after battery-supplier-store hours, I'd mentally note it and then the next day I'd have forgotten about it. However, last night around 1am, things went sideways. I'm not sure what the trigger was, but the UPS decided that if I wasn't going to take it seriously, it was just going to to lights-out completely dead. As I bypassed the UPS with a plain-old power strip, I also found that one of my devices, a 16-port dumb network switch was not entirely happy either. Its 12V ac adapter had apparently given up (unloaded, I was seeing about 9V out the end). I replaced the wall wart and switch function returned to normal. The long-and-short of the matter is that I'm now in the market for a replacement UPS. The old one was a pretty old APC Smart-UPS 1000, probably 20-ish years old and had seen numerous battery replacements. Does anyone have recent experience, either positive or negative, and/or any advice on replacements. I'd consider a used older model. I actually have two 12V 17A-hr SLA batteries on the shelf from a previous misadventure (I managed to kill another UPS while removing the old batteries, ripping a custom transformer off the UPS circuit board), so bonus points if the UPS takes that size batteries. I am pretty sure I got a replacement for it off ebay. I recall Keith lamenting that Li-FeO4 backed UPSs were not on the market not so long ago. Anyway, I am soliciting advice to help broaden my long-but-narrow personal experience. Thanks! -- Russell Senior russ...@pdxlinux.org
