[Nut-upsdev] Battery Volts shown as 20+ on Cyber Power UPS CP1000AVRLCD [ DATA ]

[Arjen de Korte]

Citeren "David C. Rankin" <drankinatty at suddenlinkmail.com>:

> Discharged battery.voltage:
>
> 	17.4 Volts - (indicated on shutdown, discharging battery.charge 77%)
> 	16.9 Volts - (indicated on shutdown, discharging battery.charge 51%%)
> 	16.6 Volts - (indicated on shutdown, discharging battery.charge 33%)
>
>     -- Shutdown Occurred at < 3% -- Battery Removed and Tested --
>
> 	12.06 Volts  (actual where charge was <= 3%, multimeter measurement)

Apparently I wasn't clear enough with my instructions. We need the  
measured battery voltage under load here and the value the UPS is  
reporting at the same time. There probably won't be much of a  
difference for the float (fully charged) voltage, but there will be  
when it is (almost) empty.

Probably the easiest way to measure this, would be to run 'upslog'  
while at the same time looking at the voltage on your multimeter.  
You'll need to watch the battery.voltage parameter, which is not in  
the default set of variables that is monitored by 'upslog'. The  
following line should report this:

upslog -l- -i 10 -f "%TIME  @H:@M:@S%  %VAR battery.voltage%" -s ecstasy_ups

It will run in the foreground until you stop it with ctrl-C. Leave the  
multimeter connected and report both values (multimeter and upslog)  
when the battery is almost empty.

Best regards, Arjen
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