Rockbox mail archiveSubject: Re: 2300 ma batteries with jukebox recorder?
Re: 2300 ma batteries with jukebox recorder?
From: Felix Becker <beckerfelix_at_gmx.de>
Date: Thu, 13 Nov 2003 21:44:53 +0100
o.k., thank you, i'll try this when the new batteries arrive.
----- Original Message -----
Sent: Thursday, November 13, 2003 9:28 PM
Subject: Re: 2300 ma batteries with jukebox recorder?
> Ok, let me clarify this. I meant internal short-circuit WITHIN the single
> cell, eventually caused by overheating during charging, due to significant
> differences (capacity or percentage of charge) between this and the other
> cells. Three of them got charged and the poor, hot-blooded and prematurely
> full fellow only got cooked! No wonder he is annoyed.
> To avoid this problem (if this is the problem), charge all cells
> with an external charger. When using this pack of cells together, every
> cell receives and delivers the same current. The weakest one (normally by
> some percent) determines the maximum playtime but no overcharging will
> happen. Repeat this from time to time to compensate aging and wear.
> At 20:43 13.11.2003, you wrote:
> >I don't think that this was the reason, because the recorder worked well
> >with the old batteries after it went hot.
> >----- Original Message -----
> >From: <mr.escape_at_gmx.de>
> >To: <rockbox_at_cool.haxx.se>
> >Sent: Thursday, November 13, 2003 3:20 PM
> >Subject: Re: 2300 ma batteries with jukebox recorder?
> > > If only one of the batteries was extremely hot, an internal
> > > can be the reason.
> > >
> > > mr.escape
> > >
> > > At 14:53 13.11.2003, you wrote:
> > > >Hello,
> > > >i wanted to run 2300 ma batteries with my jukebox recorder. I
> > > >battery capacity in the system-menu to 2300 and charged the batteries
> > > >the night in my jukebox. The next morning the chargingprozess was
> > > >and the info menu showed a batterie-life of 15 hours. Everything was
> > > >the recorder ran properly, so i turned the unit off. After about 10
> > > >one of the batteries was extremely hot, so that the battery- and
> > > >of the recorder begun to melt. After replacing the archos-batteries
> > > >jukebox was still running, but "the hot one" of the 2300 ma bateries
> > > >batterie-cover were destroyed.
> > > >I don't think this is normal, is it? What coud have been the Problem?
> > > >2300 ma Batteries too "strong"? I ordered new 2300 ma Batteries, but
> > > >afraid to run them with my new recorder. How high is the risk for
> > > >to happen again?
> > > >
> > > >Sorry for the bad english, Felix.
> > >
Received on 2003-11-13