Rockbox mail archive
Subject: Re: regression in battery charging since going to 2.5?? (probably not but ..)
Re: regression in battery charging since going to 2.5?? (probably not but ..)
maybe it makes a difference whether in "on"-state some circuitry loads the
battery more than in "off" state and so some voltage threshold ath the
battery is reached later then?
I use Sanyo NiMH 2500 mAh batteries in the recorder 20 (with upgraded hard
disk). I did re-solder the battery connections some month ago.
Where do I find sime description what "slow-long-delta" means and how the
actual charging algorithm works in detail?
What are the conditions to determine to switch to trickle charging?
Am Sonntag 06 November 2005 10:04 schrieb Linus Nielsen Feltzing:
> Christian Mahr wrote:
> > Another observation:
> > When charging the Recorder 20 in "off" mode until "trickle charging",
> > then powering on and re-connect to the charger again: Then the batteries
> > are charged *AGAIN* for another 1-2 hours or so.
> > So it DOES seem to make a difference whether the charing happens in "on"
> > or "off" mode ?
> No, the charging algorithm is the same, but in my observations it seems
> like the charging algorithm always ends with the "slow-long-delta"
> condition, which happens after roughly 2 hours of charging. It has never
> ended with a negative delta for me, which tells me that the long delta
> trigger is far too generous.
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Received on Sun Nov 6 22:09:35 2005
Page was last modified "Jan 10 2012" The Rockbox Crew