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myname24 is online now myname24
05-17-2013 , 12:42 PM
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#11
PR 1.3 has some serious issue with battery reporting . And that 4% bug is irritating because it won't let me use the camera or download apps .
 
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05-17-2013 , 12:48 PM
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#12
Yep, I've experienced it already for a long time...Somehow you get used to it...
 
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Win7Mac is offline Win7Mac
05-17-2013 , 01:02 PM
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#13
Originally Posted by Loepoes View Post
Yep, I've experienced it already for a long time...Somehow you get used to it...
Always from 93% exactly?
Already tried calibrating?
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Lucazz990 is online now Lucazz990
05-17-2013 , 01:29 PM
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#14
It happens to me too sometimes... And also if I charge the N9 while it's in charging-mode, when I turn it on it's shows about 88-94 % and not 100% as expected!
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05-17-2013 , 01:37 PM
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#15
Originally Posted by Lucazz990 View Post
And also if I charge the N9 while it's in charging-mode, when I turn it on it's shows about 88-94 % and not 100% as expected!
You mean when you charge the phone while it's powered off? - Then that's quite expected I'd say, as booting takes pretty much power, ~4% from my experience.

No idea why these threads got merged commentless, op had a different issue, more like what Lucazz990 experienced...
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Last edited by Win7Mac; 05-17-2013 at 01:50 PM.
 
imaginaryenemy is offline imaginaryenemy
05-17-2013 , 02:27 PM
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#16
Pretty interesting article...

http://talk.maemo.org/showthread.php...t=battery+bump

It speaks to several issues addressed in this thread(s).
 

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05-17-2013 , 06:49 PM
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#17
Thanks for the hint, a good read. Most important message I take out of it:
"Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory."
Also the link at the end of the article is worth a read: http://batteryuniversity.com/learn/a...ased_batteries
Most important message I take out of that:
Avoid charging a battery faster than 1C; a more moderate charge rate of 0.7C is preferred. Manufacturers of electric powertrains are concerned about super-fast charging of 20 minutes and less.
I probably stay away from the wall charger and use my PC if possible or even settle for a low-current charger.

But all that's not explaining why -while charging- status suddenly rises from 93 to 100%. Must be some kind of misallignment. I'll report after I get a calibration done. Last time I tried desperately to get the phone to not power up when connecting charger, but it just kept on booting even at ~dead battery...
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Janitor X is offline Janitor X
05-19-2013 , 06:01 AM
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#18
Originally Posted by Win7Mac View Post
Last time I tried desperately to get the phone to not power up when connecting charger, but it just kept on booting even at ~dead battery...
Turn off dev mode. That's what keeps it booting up every time you connect the charger.
 

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05-19-2013 , 06:10 AM
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#19
Originally Posted by Win7Mac View Post
Always from 93% exactly?
Already tried calibrating?
Not sure if it is at 93% each time as I don't watch it charging all the time, but ist is somewhere between 90 and 95% before hitting the 100% a few seconds later.
 

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