[Cialug] Slightly OT, .. UPSs

[kristau]

I agree with Scott. It sounds like there is a non-battery issue here. Most
enterprise UPS units will allow you to change out the batteries "live"
without taking the units down.

Correct me if I'm wrong, but I believe there are two basic types of UPS
units:
- Switching types which use mains power and have a very fast relay switch
which flips to battery when mains goes down.
- Pass through types which run off the battery 100% of the time, with mains
power simply keeping the batteries topped off.

The pass through types are cheaper and have to be taken off line in order
to change the battery.


On Mon, Feb 24, 2014 at 11:28 AM, Scott Yates <Scott at yatesframe.com> wrote:

> While I am not an expert, that sure SOUNDS like a hardware failure.  I have
> several consumer level UPS's and have never had any of them do this.
>
> I assume it is past warranty?  I would still call Tripplite about this
> though.
>
>
> On Mon, Feb 24, 2014 at 11:24 AM, L. V. Lammert <lvl at omnitec.net> wrote:
>
> > Had a problem this AM that I'm not sure how to solve. We have a Tripplite
> > 3K UPS at a site, and it just SHUT ITSELF OFF for the third time in the
> > past calendar year. The issue could be related to the external battery
> > pack (getting old), so I disconnected them.
> >
> > Question - has anyone seen a UPS that will FAIL LIVE (i.e. if the UPS
> > chokes, it reverts to line power instead of just dying)? Close as I can
> > some on a search is the SU5000RT4U, but I'm not sure even that would
> solve
> > the problem as it is an online UPS (i.e. power output is always from the
> > UPS for conditioning).
> >
> >         Thanks!
> >
> >         Lee
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