Yes, many models had the flaw/feature that they would turn off if there was a battery fault.  Combine that with batteries in a non controlled space and a charger that doesn't adjust the voltage for temperature and you can see a dead battery pretty rapidly.  Those things are time bombs.  If you're changing batteries on a schedule you're resetting the clock on the time bomb, but that baby is still ticking.

On 3/30/2020 3:35 PM, Josh Luthman wrote:
Smart vs Back operate differently.  Probably the most annoying one, is that Back will have no output power when utility is hot but the battery is bad.  So your tower goes down when the power is just fine, but the battery is a little old.

XL is faster charger, yes.  That recovers battery voltage when the power comes on.  I guess it might be good if your power goes up/down a lot, but in my experience it stays up when it's back up.

As far as web/SNMP monitoring we use the PacketFlux site monitor usually.  It works at 100% of AC sites.  In a couple data center like sites I do have the 961x cards and I will admit they're nicer overall.

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373


On Mon, Mar 30, 2020 at 3:26 PM Ken Hohhof <af...@kwisp.com <mailto:af...@kwisp.com>> wrote:

    I’ve heard a lot of people say the key wasn’t Smart or Dumb, but
    XL or not XL, on the premise that the XL models had a more robust
    charger. But I guess that’s for tower sites.

    I’ve run the little 500 VA BackUPS models for a long time with
    just a battery change every 3-5 years.  They had several different
    model numbers but all looked similar.  The larger tower models
    always seemed to get swollen batteries that would get wedged
    inside.  The best SmartUPS model for me was the 1400 VA rackmount
    XL.  Those didn’t seem to destroy batteries like the tower models.

    What problems did you have with the BackUPS models?  For a home
    UPS you probably aren’t using the web or SNMP monitoring.

    *From:* AF <af-boun...@af.afmug.com
    <mailto:af-boun...@af.afmug.com>> *On Behalf Of *Josh Luthman
    *Sent:* Monday, March 30, 2020 1:50 PM
    *To:* AnimalFarm Microwave Users Group <af@af.afmug.com
    <mailto:af@af.afmug.com>>
    *Subject:* Re: [AFMUG] Good Home UPS

    I've seen them at home because we threw them away at work.  I
    regretted it every time and just threw them away, or replaced it
    with Smart UPS.

    Josh Luthman
    Office: 937-552-2340
    Direct: 937-552-2343
    1100 Wayne St
    Suite 1337
    Troy, OH 45373

    On Mon, Mar 30, 2020 at 11:29 AM Seth Mattinen <se...@rollernet.us
    <mailto:se...@rollernet.us>> wrote:

        On 3/30/20 8:16 AM, Josh Luthman wrote:
        > No.  Just no.  No.  Back UPS are terrible. Smart-UPS have
        been great to
        > us over the years.
        >
        > 100% of our issues are Back UPS related.


        I'll use a Back-UPS at home, but that's about it.

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