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[Q] Full or not full? That is the question

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OldOldDev
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(Last edited by OldOldDev; 22nd December 2013 at 11:45 PM.)
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Default [Q] Full or not full? That is the question

I got the little tinkle sound earlier that signifies that the battery is fully charged, but noticed that the battery icon in the top right seemed to indicate that it was still charging. Please see the 2 screenshots taken at 10.15pm.

So i decided to leave it a while and later noticed that the battery icon changed to full.

Does that mean that the lithium battery trickle charges for about half hour or so?
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khaytsus
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Quote:
Originally Posted by OldOldDev View Post
I got the little tinkle sound earlier that signifies that the battery is fully charged, but noticed that the battery icon in the top right seemed to indicate that it was still charging. Please see the 2 screenshots taken at 10.15pm.

So i decided to leave it a while and later noticed that the battery icon changed to full.

Does that mean that the lithium battery trickle charges for about half hour or so?
LiIon/LiPoly do not trickle charge. Your guess is as good as mine as to why it indicated it was full prior to it really being full. Perhaps it indicates full charge at 95% or something? Did you look to see what exact percentage it was when it "tinkled"?
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Steamer86
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(Last edited by Steamer86; 23rd December 2013 at 12:27 AM.)
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They do trickle charge(low mA) at top end... and bottom... and depending on temperature.... very apparent if checking mA readings. Charging logic. Your findings are correct. I still say there is ****ty top and bottom end calibration on this phone, though makes 0 difference in how long the battery lasts if you leave it sit. How we get that magic 1% top end and **** 5% bottom, that sometimes powers off at 2%.
 
OldOldDev
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Thanks guys. The prevailing logic is that lithiums don't trickle charge because when they are "fully" charged then they *should* automatically switch off the power, but there definitely does seem to be evidence of a trickle change effect.
My guess is that my particular phone has poor battery calibration, but i don't know yet.

Quote:
Did you look to see what exact percentage it was when it "tinkled"?
It showed 100% (it also shows this in GSam battery monitor in the 2nd screenshot). Every singlge time the 'tinkle alarm' goes off it shows 100%
 
Steamer86
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(Last edited by Steamer86; 23rd December 2013 at 03:13 AM.)
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It's all LG G2s. I wouldn't say it's trickle per say, the logic just slows the mA draw at top end. Doesn't shut on and off, Just starts again at a certain % threshold. Calibration at 100% and bottom is indeed mis-calibrated. The standby mA draw in BMW and LG diagnostics reports +27,28 mA. A bit odd of you ask me.... Should be negative... all the more to assume bad calibration.
 
maydayind
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not an expert but lipo cells are charged individualy and needs to be in balance maby that's why. all lipo have this issue and have som time the need to be balanced don't know I f the phone do that automatically...

just a idé don't know if that's the issue
 
garywojdan81
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If you monitor the rate at which it's drawing charge once it nears 100%, you'll see it slows considerably but doesn't stop all at once. Its much more accurate to use the actual voltage to monitor charge. Gsam or android tuner do a pretty good job of that.

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