UPS backup musings

Igor Gueths igueths at lava-net.com
Tue Jun 18 11:51:36 EDT 2013


Hi Greg,
out of curiosity which unit did you end up with?
On Mon, Jun 17, 2013 at 01:33:59PM -0700, Gregory Nowak wrote:
> Igor and all,
> Thanks once again to all those who replied for your
> input, which proved valuable in making my decision. I ordered
> last night the unit I initially had my sites set on after thinking
> everything over. I guess we'll see how things go once I get it, and
> set it up. Thanks again.
> 
> Greg
> 
> 
> On Mon, Jun 17, 2013 at 11:51:23AM -0400, Igor Gueths wrote:
> > Hi Greg,
> > years ago I purchased an APC Back-UPS RS-1500, max output is around 875W/1500VA
> > and it will power what I currently have plugged into it for around 3 hours. This
> > particular unit also supports Apcupsd very well, lots of useful info can be
> > obtained with the apcaccess utility which simply queries the UPS for whatever
> > stats it is able to return. Now granted I did get an extra battery for it that
> > is currently connected, the regular unit with the inbuilt battery by itself
> > might run things for closer to two hours (just an estimate). Another interesting
> > thing that I have noticed via running Apcaccess is while you may have all the
> > outlets taken at any given time, the power that all those devices draw
> > cumulatively does not equal a steady 120V at any given time. For example, if I
> > recall I currently have my server, USB hard drive, Ethernet switch, wireless
> > access point, and perhaps a couple of other things plugged in, and apcaccess
> > will still report current load as being around the 10-14% range. Good luck
> > finding a unit!
> 
> 
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Igor

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