On Sat, Jun 28, 2008 at 8:02 PM, Arjen de Korte <[EMAIL PROTECTED]> wrote:
> I understand that you're volunteering to setup such a database/wiki?
> Please do, this has been discussed many times before, but so far nobody
> has taken up this task... :-)

I will, if I see this helpful. But first I want to fully understand
what you're talking
about it being useless.

>> It is just matter of user-friendliness and simplicity. Just imagine -
>> you're forcing
>> every user of such UPS to do this experiment, spending time setting up
>> hardware
>> for this, capturing logs, etc, while we could minimize this useless
>> time spending
>> by taking values from one user and publishing them.
>
> For your information, although the idea behind the battery charge
> calculation was made with the best intentions, it was flawed from the
> start. The way the battery charge is calculated by the megatec driver is
> better than nothing (but not much) and really can't reliably be used to
> guesstimate the runtime remaining. We've wasted far too much time on this
> already and I really think it is time to lay this finally to rest.

What're you proposing instead?

>> Jayson, please, post results of your test here. Even if developers won't
>> go with
>> creating database I described, your values still will be available for
>> people through
>> mailing list archives. :)
>
> I would say, don't waste your time on determining these values. For most
> (if not all) applications, the values need to be determined on a
> system-by-system basis to have some meaning.
>
> If one really needs a somewhat reliable guesstimate of the runtime
> remaining, you should steer clear of UPSes that use the Megatec protocol,
> since these systems are lacking some important things that are required to
> make this of any use. I have written about this several times in the past,
> both on the nut-user and nut-devel mailinglists.

Could you point me to your posts or some other place where I can understand
what information is required, what is missing, etc?

-- 
Regards,
Alexander Chemeris.

SIPez LLC.
SIP VoIP, IM and Presence Consulting
http://www.SIPez.com
tel: +1 (617) 273-4000

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