Are you measuring the battery in-circuit or disconnected from the UPS? Did you change the load on the UPS?
Does removing some load from the UPS allow it to work? -- Russell On Wed, Sep 27, 2023 at 3:44 PM Dick Steffens <d...@dicksteffens.com> wrote: > > On 9/27/23 15:39, Bill Barry wrote: > > On Wed, Sep 27, 2023 at 5:16 PM Dick Steffens<d...@dicksteffens.com> wrote: > >> On 9/27/23 14:12, Russell Senior wrote: > >>> I have a UPS in my basement right now, beeping every 14m53s and the > >>> battery is fine. The problem is oxide on the connector. Every 3-4 > >>> months I ritually disconnect and reconnect the battery terminals a few > >>> times to scrape off the oxide layer and it's well again. That is just > >>> to say that underlying causes can vary. There may be a manual > >>> somewhere that describes troubleshooting steps for your UPS, and > >>> describes lights and beeps and what they mean. > >> It did look like there might have been some corrosion on the battery > >> tabs. I applied your technique, and the battery tabs look cleaner. I > >> plugged the unit back into the wall and turned it on. Still has the same > >> problem: green light, then beep-beep followed by no power, which repeats. > >> > >> Right now I'm copying a few things from this machine to my laptop. Then > >> I'll shut down this machine, move the UPS over to the other end of the > >> desk, and plug in the other machine. > >> > >> Then I'll look into whether I need a UPS with more capacity. The one I > >> have is 850. There is a 1500. I'm guessing it's the next level up. Some > >> suppliers still have the 850, but it sounds like it's being retired in > >> favor of the 1500. > >> > >> Time to start researching UPSs again and see who currently makes the > >> best, moderately priced unit. Amazon has the 850 for $117. Best Buy no > >> longer has it. Amazon has the 1500 for $174. Best Buy, $222. > >> > >> Any recommendations for other brands? > >> > >> -- > >> Regards, > >> > >> Dick Steffens > > Why not get a new battery? > > I would expect the current battery, with 12.54v should have at least > started up, so I'm suspicious that it's not the battery. I can take it > up to the place I got it, Battery X-Change of Oregon City, and have them > test it, which I will probably do tomorrow. > > -- > Regards, > > Dick Steffens >
