[Nut-upsuser] Fwd: Cyberpower usbhid-ups wrong battery voltage

davor emard davoremard at gmail.com
Tue Apr 8 09:40:34 UTC 2008


I guess it's tied to vendor/product id probably all models e.g.
400/600/800 differ only in battery capacity and run the same
firmware but I will ask them

On 4/8/08, Arjen de Korte <nut+users at de-korte.org> wrote:
> > I just got reply from Cyberpower R&D department about the battery
> > voltage correction formulae
> >
> >> responsibility of the vendor (CyberPower). If someone provides me with
> >> the
> >> correct conversion values, I'm willing to include this in the subdriver.
> >
> >  Our software group provided the following
> >
> >  Battery voltage =  (Hid battery voltage) / 1.53
> >  for example:
> >     21.3 /1.53 = 13.9 (measured 13.6)
> >
> >  Note, the tolerance is possible for each unit of UPS.
>
> It is not clear to me what the line above means. Do they mean all units of
> the same model, or all CyberPower devices with ProductID=0x0501. We can
> only do this in the latter case since the device provides no information
> about the model, so all we can work with are VendorID and ProductID.
>
> Best regards, Arjen
>
>



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