[Nut-upsuser] Shutdown after 5 minutes?

[Udo van den Heuvel]

Doug Reynolds wrote:

>> As I wrote to someone else recently on this list: A battery can
>> appear to have a good charge state (= voltage) even when it's gone
>> bad & developed a high internal resistance.  That happened to me a
>> while back when I wasn't even running any software to control UPS.
>> UPS had been running for years, with charge state good (LEDs). I
>> pulled power, & it dropped out after maybe 10 secs ! 2 of the 4
>> batteries had good voltages but high internal resistance
> I really doubt it is the battery.  I have the same CyberPower unit, new
> out of the box, and it does the same thing..

Theoretically it can be an issue so I will swap the two UPSses I have.
Yet they are fairly new so I would not suspect hardware issues like a
weak battery.