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Rockbox mail archiveSubject: Re: [JB6000] Charging Bigger Battery than beforeRe: [JB6000] Charging Bigger Battery than before
From: Sir Pandolphe - Eudora 6 <pandolphe_at_yahoo.fr>
Date: Sat, 04 Oct 2003 17:53:31 +0200 It's that I would like to know. Thanks you a lot ! Thanks to Joris van den Heuvel, too. Sir Pandolphe. At 17:13 04/10/2003, you wrote: >I think I see what you are getting at. I'll answer each point, where it >makes sens to to so. > >On Sat, 4 Oct 2003, Sir Pandolphe - IncrediMail wrote: > > > Hello, > > > > Thank you for your answer. > > > > I have already read all of yours FAQ. > > > > Your Battery FAQ says that : > > Does Rockbox charge the batteries more/less/worse/better than the Archos > > firmware? > > ------------------------------------ > > Player: Rockbox doesn't affect the charging on Players, it is all done by > > hardware logic out of software control. > > > > Ok, I Have understand this. > > > > > > I Will try to speak step by step. > > If you don't understand, you can say what you dont understand. > > > > 1*> ) Normally, they are 1500 mah NIMH Battery on the Player. > > 2*> ) The Archos Player 6000 charge the Original 1500 mah Battery with ONE > > cycle of charging. I Connect to 220V my archos and i'm waiting for the > > Battery Charged" message. Is it Ok ? > >Yes. > > > > > > > 3*> ) Now, I have put IN my Archos Jukebox 2300mAh NIMH Battery. Before, > > they are 1500 mAh Battery, now 2300 mAh battery on my Archos. Is it OK ? > >Yes > > > 4*> ) When I Connect to 220V my archos, it will display "Battery > Charging... > > , and after, it will display "Battery Charged". But, I Have NOW 2300 mAh > > Battery on my player 6000 ! > >Yes. Nothing is wrong. > > > > > 5*> ) I Think really that the archos don't charge fully (full) the 2300mAh > > Battery with ONE cycle of charging. > >The batteries should be fully charged. > >The player charges the battery until the voltage starts to drop. That >voltage drop means the battery is starting to get hot, even hotter than it >gets during normal charging. The reason it starts to heat up is that the >batteries are "full", and are not accepting any more charge. > >So, (a) Battery is full, (b) as a result, it's temperature rises, (c) >because of that it's internal resistance rises, (d) which makes the >voltage drop slightly, (e) which is sensed by the charging control chip in >the player, (f) which shuts off the charging. > >Some people claim that it takes several discharge/charge cycles for NEW >batteries to get up to full capacity. So it might be a good to just use >them for a week or so before trying to do any timing tests to check their >capacity. > > > 6*> ) Before I have plugged on my Archos The 2300 mAh Battery, I have > > charged the 2300 mAh Battery with a specific charger. > >That is fine. I lost my wall-wart (the external transformer, 110 volt in >my case) and always have to charge my batteries externally. I just have 2 >sets and rotate them between the charger and my player. > > > > > 7*> ) The archos has work during a very long time, but now, when i charge > > with my Player 6000 (battery on my archos) the autonomy (duration of > > playing) is more little than when i have used my 2300 mAh Battery charged > > with a specific charger... > >Are you actually timing it? Or are you using the Battery Time Remaining >indicator on the screen? > >Remember, you have to go to Menu -> General Settings -> System -. Battery >Capacity and change the number from 1500 to 2300. The will make the >display more accurate. Note that this setting does NOT affect the >charging cycle, it ONLY affects the "time remaining" display. > >If you are using a clock to actually time how long the player plays using >various combinations of batteries and chargers, remember that the bitrate >and encoding method (VBR vs. CBR) of your mp3s can have a radical effect >on the battery play time. The higher the bitrate, the more often the hard >drive has to spin up to re-fill the memory buffer, and that results in >shorter play times before the batteries are exhausted. So, be sure to use >the same music each time for your comparisons. > >It may be possible that an external charger charges the batteries a little >better or a little worse than the charging circuit built into the Player. >Only controlled testing with your specific hardware will tell for sure. >But I wouldn't expect more than about a 10 or 15 percent difference, if >you are using a decent charger. > > > > > > > I Hope that you have understand me, i typped this email during 1h00 ! > > I'm sorry for busy you. > >I think I understood fine! Your English is a whole not better than my >French. I have a year of French from High School, but I'm afraid I would >be totally lost if I had to really rely on it... > >I hope this helps. Good luck! > >Michael Received on 2003-10-04 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |