Andrea Venturoli
2022-Oct-11 14:04 UTC
[Nut-upsuser] APC SmartUPS powercycles when power returns
On 10/11/22 15:48, Roger Price wrote:>> ups.firmware: UPS 08.8 / ID=18 >> ups.mfr: American Power Conversion >> ups.mfr.date: 2014/06/20 > > How old is the battery?~2.5 years. The above date was probably not updated when it was changed. Could a faulty battery pack produce this??? I mean, it keeps the systems up as long as line power stays off, can it then fail when the power returns??? I've had several such UPSes and never saw this. However, if someone has seen this behaviour I'll try changing the batteries. I'd just hate to do this and discover the UPS is faulty, instead. N.B. The UPS is NOT asking for a battery replacement.> It's difficult to say more without knowing exactly where you are in the > sequence of events and the timing as listed in1. Wall power on 2. Wall power fails 3. ... Not 4. (batter.low was never reached); goes directly to 14. Wall power returns. XX. Attached computers reboot instantly!!! bye & Thanks av.
Manuel Wolfshant
2022-Oct-11 14:18 UTC
[Nut-upsuser] APC SmartUPS powercycles when power returns
On October 11, 2022 5:04:45 PM GMT+03:00, Andrea Venturoli via Nut-upsuser <nut-upsuser at alioth-lists.debian.net> wrote:>On 10/11/22 15:48, Roger Price wrote: > >>> ups.firmware: UPS 08.8 / ID=18 >>> ups.mfr: American Power Conversion >>> ups.mfr.date: 2014/06/20 >> >> How old is the battery? > >~2.5 years. >The above date was probably not updated when it was changed. > >Could a faulty battery pack produce this???Usually, not. The usual behaviour with (old|faulty) battery is sudden drop of battery capacity from 100% to 0 or close to 0 and instant death, probably without offering the protected systems to do a proper shutdown sequence. Many times the battery also pretends to recharge very fast.>I mean, it keeps the systems up as long as line power stays off, can it then fail when the power returns???Nope> >I've had several such UPSes and never saw this. >However, if someone has seen this behaviour I'll try changing the batteries.I've never seen this either. I do not think that batteries are at fault. OTOH I would not be surprised if an 8 yrs old UPS is defective. wolfy -->I'd just hate to do this and discover the UPS is faulty, instead. > >N.B. The UPS is NOT asking for a battery replacement. > > > > > >> It's difficult to say more without knowing exactly where you are in the sequence of events and the timing as listed in > >1. Wall power on >2. Wall power fails >3. ... >Not 4. (batter.low was never reached); goes directly to >14. Wall power returns. >XX. Attached computers reboot instantly!!! > > > > > bye & Thanks > av. > >_______________________________________________ >Nut-upsuser mailing list >Nut-upsuser at alioth-lists.debian.net >https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/nut-upsuser