That's what's stopping me from buying a new set of batteries straight-away - the thought of replacing them & then finding it's still broken - but more expensively!
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5 years ago
OT - PC / Battery back-up question
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5 years ago
Good thought - but, having watched it this morning, it's the UPS actually dropping its 'mains out' - as the LCD monitor also went off.
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5 years ago
I think that's what's happening. Back when I got this unit (probably ten years ago) I did spend a little time trying to 'talk' to it from the PC - but never did manage to establish any sensible comms... Probably, if you can do that, there'll be some config that will turn off the self-test....
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5 years ago
Yes - I could imagine that might get 'interesting'.... On balance, I think I'd rather be at the mercy of a mains network fault, than depending on the whims of the UPS! I have a feeling it's headed for the recycling skip.....
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5 years ago
I have them (I have three!) for the mains conditioning aspect. Although last week we *did* have a power cut of over an hour, and I was out. It was nice that all of the machines shut down correctly and then powered themselves off (seven of them in total).
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5 years ago
The trick there is that you can see the battery deteriorating if you test it regularly - it will take a significant time to recover, and will drop a significant percentage after a test of just seconds.
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5 years ago
I'm not convinced it's very useful. If your data's backed up, power down without preparation carries only a tiny risk of data corruption with spinning rust. With silicon storage, write cycles are faster reducing risk further. So the risk is need to format & reinstate data rather than significant loss of data.
NT
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5 years ago
I never did manage to get the 'orderly shutdown' bit working with this UPS - seems it didn't want to talk to the PC.... So - in my case, I'm getting some power conditioning, and the chance to hot-foot it to the PC in the event of a mains failure so I can manually shut it down... - if I happen to be here & awake <g>
Not really sure it's worth the cost & effort.
I used to do a lot of web-development (back when the mains was a bit iffy) - but don't do hardly any of that now, so there's not that much 'vital' work that's going on, and, of course, there are backups...
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5 years ago
Probably right. I'm just not that organised!
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5 years ago
You have to put some load on it to test it? 100w incandescent lamp, maybe? There has to be some use for the old light bulbs I've hoarded.
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5 years ago
Tch. Buy a laptop.
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5 years ago
Just tried the thing with the PC turned off. UPS won't even turn on, shows battery level at 1 led (max = 5), bleats unhappily and shuts down.. Looks like the batteries are dead..
Thanks Adrian
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5 years ago
I don't use the APC software. It's all FreeBSD here, and the 'nut' utility suite works really well. Tells other machines to shut down, runs periodic tests, etc.
I just wait for the emails.
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5 years ago
Not sure there ever were any.
We shipped a "headpark" utility with the ICL Quattro back in the 1980s. That was not because the drive would suffer damage if power was lost, but because putting the heads off to a parking zone would reduce the chance of damage due to chock or vibration. Some drives would lock their heads there.
Andy
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5 years ago
They give a "clunk" when switching in/out of buck mode or boost mode, i.e. if your mains voltage gets too high or too low.