Rockbox mail archiveSubject: 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 ..)
From: Christian Mahr <christian.mahr.ulm_at_arcor.de>
Date: Sat, 5 Nov 2005 23:25:02 +0100
I noticed something similar this week. the batteries were to zero in the
morning when I could swear I havenīt used the recorder 20 more than an hour
or so after the last charge.
so either the batteries were improperly charged or became discharged over
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 ?
Today I downloaded the latest build and try to continue to investigate...
Am Mittwoch 02 November 2005 22:25 schrieb Tom Cole:
> On Wed, 2 Nov 2005 08:50:56 -0600, "Jeff N" <jeffn_at_zombieworld.com>
> >I also have noticed a dramatic decrease in battery life since going to
> > 2.5. It seems to need a charge only after a few hours of use. I'm using
> > some 2500maH Energizer batteries that are about 3 months old on my
> > Recorder. I always charge them in my Recorder, and always run it down as
> > low as possible before recharging. I normally let them recharge
> > overnight, and when I unplug it it's in trickle charge mode. If anyone
> > needs any more info or needs me to run tests, let me know. Perhaps it's
> > just crappy batteries, but after seeing George's post, I thought I'd let
> > you all know.
> A couple of questions:
> Is your "Disk Poweroff" set to Yes?
> (F1 > General Settings > System > Disk > Disk Poweroff)
> If set to No, powering the disk all the time will drain the batteries
> In your WPS file do you display the Peak Meter (%pm)?
> >From the 2.5 Change Log
> "The peakmeter has been reworked. The performance setting is removed,
> and now always runs in what was previously known as high performance
> mode, slightly changed. " (This may or may not be relevant.)
> The battery charging algorithm was changed around April 2005. I have
> been running my Recorder V1 on the 5 April 2005 daily build. This
> contained most of the charging changes. I average 8-10 hours per charge
> running with the original 1500maH Archos batteries.
> Rockbox can meter your run time. (F1 > Info > Debug > View Runtime).
> Ensure the Current Time has been Zeroed after a charge (press Play in
> "View Runtime").
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Received on 2005-11-05