[Nut-upsuser] why did self test warn?

Stuart D. Gathman stuart at gathman.org
Sat Feb 16 18:58:00 GMT 2019

On Sat, 16 Feb 2019, James wrote:

> Now it says:
> battery.runtime: 1170
> The display on the UPS fluctuates between 16-19 minutes.
> ups.load says 30 constantly and The display on the UPS says 30% so I think 
> that is correct.

battery.runtime is in seconds, so that agrees with the UPS display as

> How you find out your battery was manufactured in 2012?

APC batteries have a smart chip that records stuff like that and can
be read by the UPS.  Another possibility, is that they "refilled"
an old case.  The end result was a substandard (but working - and
cheap) battery.

> How would I know if is the UPS?

That fluctuating runtime sounds suspicious - although the load is also
fluctuating between 32 and 28 in your examples.  Maybe the lower
runtime is a consequence of the higher load?  Why is your load varying?
It might be something plugged into the UPS.  Maybe your server makes
the load difference when CPUs are maxed out?

 	      Stuart D. Gathman <stuart at gathman.org>
"Confutatis maledictis, flamis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.

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