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

Arjen de Korte nut+users at de-korte.org
Tue Apr 8 07:22:58 UTC 2008

> 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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