[Nut-upsuser] CyberPower CP625HGa shuts down 3 watt load in 2 minutes

[Manuel Wolfshant]

On August 17, 2021 7:12:19 PM GMT+03:00, Gene Heskett <gheskett at shentel.net> wrote:
>On Tuesday 17 August 2021 11:11:49 Manuel Wolfshant wrote:
>
>> On August 17, 2021 5:57:28 PM GMT+03:00, Roger Price 
><roger at rogerprice.org> wrote:
>> >On Tue, 17 Aug 2021, Gene Heskett wrote:
>> >> Which may explain why tiger-direct had them so cheap, $39.95 a year
>> >> ago.
>> >>
>> >> But as long as it holds up long enough to get my 20kw standby
>> >> running, about 4 or 5 seconds, I'm a happy camper.
>> >
>> >Don't take the risk.  That standby generator needs to start.  Can you
>> > open the tiger-direct special and extract the battery?  Perhaps that
>> > will give a date, and an idea of what is needed to replace it.
>> >
>> >Roger
>> >
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>>
>> I second that. I've seen UPSes dying instantly when switching the load
>> to a dead but apparently kicking battery.
>>
>I've a better idea than that. Has anyone a script that looks at upsc 
>output say every 15 seconds and finding an ONBAT in that timestamps it 
>and writes the battery voltage to a log, not on the u-sd but to an SDD 
>for later checking of the battery's performance? I have 380 G's of SSD's 
>on that pi, and everything in the high traffic category but /tmp has 
>been moved to the SSD's. The u-sd gets about 50 megs a day of write 
>traffic, and the wear leveling has now handled that for a year, its a 
>64G card with about 12G used so it has plenty of playroom
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>
>
>Cheers, Gene Heskett

There is a logger included in the nut package which does exactly what you want.