Rockbox mail archiveSubject: Re: AW: AW: AW: Bug: Battery Charging with low voltage
Re: AW: AW: AW: Bug: Battery Charging with low voltage
From: Linus Nielsen Feltzing <linus_at_haxx.se>
Matthias Klumpp wrote:
This is because of the voltage "dips" when the battery is low, combined
> The (flashed) FW was then possibly stopping and returned to the browse
Yeah, the OFF key problem again.
> That way it was continuing chargeing, so I found it in this state (I was
> What do you think ?
Well, the batteries are obviously not charged enough. Or they are worn
> I'll charge now again with Archos FW and I'll repeat that test to verify the
If you only get 4h play time from your 2000mAh batteries, even with the
> Pointing out the test conditions, so I don't have to comment that in every
I believe that the Archos algorithm isn't very sophisticated, so it
> I then found out, that 9V and Archos FW works 100%.
Yes, the Archos algorithm seems a lot simpler.
> Just to point that out once again:
> I'm using 2000mAh batteries.
Nope. That won't help, unless the 2000mAh batteries are bad.
> Wouldn't it be a possible way (or better workaround) to implement something
> - we already have the bat. capacity in the settings
I have some ideas about finding out the charging voltage, but the best
> - same way you calculated, the FW could estimate the current and that way
> For sure this is not the best way to charge batteries and probably it is
Well, charging with a too low voltage for a long time is not what I call
> As increasing the charger voltage will not solve my problem (as m.a.), any
Not really, other than starting the charging immediately instead of
Page was last modified "Jan 10 2012" The Rockbox Crew