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Subject: Re: Re[4]: It works ;)
From: Mike Holden (mike_at_mikeholden.uklinux.net)
Date: 2003-02-13


Uwe Freese said:
> Hello Mike,
>
> Mike Holden wrote on Thursday, February 13, 2003, 9:58:30 AM:
>
> MH> I have already posted a patch against the logged bug for this
> problem: MH>
> http://sourceforge.net/tracker/index.php?func=detail&group_id=44306&atid=439118&aid=676339
>
> I thought it only disables all the charger stuff, and that's not what I
> wanted..

2 different patches. You have already applied the one to disable charging.
The link above is a different one to sort out the voltage ranges.

>
> MH> The patch is at
> http://www.mikeholden.uklinux.net/rockbox/powermgmt.ch.diff
>
> MH> Briefly though, min battery is 1.8 volts, max is 3.4 volts. I have
> fitted MH> the curve against this scale, in increments of 0.16 volts.
>
> Ah, ok. These values (1.8 - 3,4 v) cannot be the real ones, because the
> LiIon max voltage is 4,2 (or 4,1) v. But I can change the battery scale
> factor for the fm and adjust the curve. I'll update it in some hours..

Those are the values that rockbox displays at full charge, and at almost
fully discharged. I appreciate that the theoretical max is 4.2v, but that
is not what the hardware gets to. Maybe Archos put some limiter in the
hardware to prevent overcharging or something. I repeat - these are
observed values from the hardware, not whitepapers or spec sheets, and are
therefore what a user will see.



Page was last modified "Jan 10 2012" The Rockbox Crew
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