Recently, I have replaced the battery and I have tried to completely to drain the battery and charge the phone offline up to 100% to recalibrate it, but although the offline charging logo shows the battery at 100% once I turn the phone on the battery icon shows it at 87% (and in twrp recovery as well). Again, this happens every time and this is my fourth attempt to recalibrate the battery without any success so far. I can charge it to 100% online but it looks like the phone doesn't like to hold it at 100% and quickly goes to 99% in a minute which is strange.
Another odd thing I noticed is that the battery starts to charge offline at 1% instead of 0% despite being completely drained and the phone unable to be turned on.
I also performed a total firmware reset using Odin but to no avail. Now suspicious if it's a motherboard or vendor issue. I had these issues even before the battery replacement and reflashing a stock firmware.
I'm running ArrowOS 11 with the latest bootloader (SM-960F - DBT)
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Hello,
My desire, after:
an inability to restore nandroid backup
a possible corrupted sd card
a usb brick and inability to mount some nand partitions
and finally succeeding in fixing it, now using/running:
2.29.405.5 stock rooted rom
a new sd card (samsung 16GB class 6)
clockworkmod 2.5.0.7
s-off
seems that has battery issues. When it reaches below 30%, it drains a lot faster. In example few minutes ago, the battery was below 30% level and after sending a couple of sms messages the phone, without the "Connect the charger" indication shut down. Not even the battery icon was red.
What should I do?
After flashing the above ROM I ran an app called battery calibration (could this be the culprit?).
I haven't experienced such problems before the whole mess mentioned above.
Thank you for your time.
Well, it seems to me like a "classic" battery meter calibration issue.
TVTV said:
In order to calibrate the battery meter - FYI the battery itself cannot be calibrated, as Li-Ion batteries have a very low memory compared to old Ni-Cd etc. batteries - you have to go through the following procedure:
1) charge the battery to 100%;
2) let the battery discharge until the phone shuts itself down;
3) plug the wall charger into the phone, boot the phone up then charge the battery to 100% without interruptions.
If the above procedure does not yield the expected results, you can try fully charging the phone (LED showing green) with it completely turned off (after completely draining it). Again, the charging procedure should not be interrupted.
Source: personal experience - had to do this twice after installing new ROMs, as the phone was shutting down at ~14% (working like a charm now).
Regarding the matter of battery wear because of complete discharges, Li-Ion batteries do indeed have a lower cycle count than old-school batteries, but the standard charge/discharge number a Li-Ion battery can take is ~350, so you can't damage the battery pack by doing a full cycle per month (required to keep the battery meter accurate).
Good luck!
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Did this work you mate? I have the same issue with my year old batter now... the phone shuts down @ 40% without any warning... and when I charge it, it starts from 0% and as soon as it hits the 58% mark, it jumps to 100% by itself... and i cant seem to figure out what the hell could I do to fix it... I tried calibrating the battery using the awesome method described here http://forum.cyanogenmod.com/topic/11823-battery-calibration-thread 3 times and nothing changed...
bump bump.. i really need help on this guys... :/
Sent from the infinity and beyond...
Weird that after calibration you still get that kind of issues, does this only happen on your current ROM? I have the latest CM in my desire and everything works just fine... Maybe try another ROM if calibration doesn't work to see if it's a hardware or software issue
i actually had issues with MIUI first.. the phone randomly shut down by itself but when i turned it back on, it was perfect... then i switched back to Oxygen and while everything was fine, suddenly one day the phone died at 40% :S and from that day on the phone charges to 58% and then instantly jumps to 100%... and as soon as it gets to 40% it shuts down itself... i guess i need a new battery but i wanted to see wether i can fix this one somehow so i can use it till the new one arrives...
Sent from the infinity and beyond...
same problem
i have the same problem
my phone turns off at 20% battery
calibration does not help....
and battery is not bad - it works fine
i'm sure its the problem with calibration
kshitijgandhi said:
i have the same problem
my phone turns off at 20% battery
calibration does not help....
and battery is not bad - it works fine
i'm sure its the problem with calibration
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phone turning off at 20% is fine mate because thats the battery guards against any damage
most of the phones ( smart phones) switch off at 20% as going lower can damage the System .
It shouldnt normally..It's supposed to work fine upto 5%
Have a look at this, it worked for me (but you need a compatible kernel, most AOSP are so)
http://forum.xda-developers.com/showthread.php?t=765609
While I was charging my battery I was testing different ROMs and restarting the phone multiple times and I think now it's not working properly because is in 75% it says charing but it has been stuck in 75% for 2 hours, so maybe it's already at 100% but the OS think it's only 75%, is there a way to reset the battery?, thanks
what is the specialist of AT&T towards this device?
not sure if it will help but there is an app called "Battery Calibration" in the play store. Give that a shot and see if that helps
brosenz said:
While I was charging my battery I was testing different ROMs and restarting the phone multiple times and I think now it's not working properly because is in 75% it says charing but it has been stuck in 75% for 2 hours, so maybe it's already at 100% but the OS think it's only 75%, is there a way to reset the battery?, thanks
Click to expand...
Click to collapse
Try to wipe batt stats through cwm. Or use a battery calibrator from the play store
Sent from my SAMSUNG-SGH-I317 using xda premium
not sure if it is the same thing on the gn2, but this same problem would happen to me when I had my old moto atrix.
How i fixed it was to do the following all while the phone is plugged into the wall:
- shutdown the phone
- with the phone off, plug the phone into the charger and let the battery icon appear on the screen indicating that the phone is charging
- once you believe the phone is full (a few hours on the charger), remove the battery (while it is still plugged in)
- Then a battery with a question mark would appear since there is no battery
- leave the battery out for 5 - 10 seconds, then place back into the phone (still plugged into the wall)
- let the phone charge for another 5 or so minutes
- Turn the phone on
This would always reset how Android would report the battery percentage, and it would always revert back to 100% once I turned the phone back on.
Like I said, I haven't had this problem on my gn2 yet, so i haven't tried it myself. Good luck.
A few weeks ago I rooted my phone with the latest version of TWRP and installed Liquid Smooth as my OS. I haven't had any problems with it until today, when it died (as expected, since I did not charge it for a few days) and I began to charge it from 0%. I began to charge it and noticed that it charges ridiculously slow even from a wall outlet. The bigger problem is that the OS detects a different battery level as the recovery tool. For example, I can leave my OS booted up while charging for 30 minutes and it will display something like 20% battery. Then if I shut it off the battery icon and the recovery tool (TWRP) will display anything ranging from 0-20%. It is random, too. One second it could be 15%, then next time I reboot it might say 5%. The problem then is that when I boot up the OS, it uses the percentage that the recovery tool displays. So if I shut off the phone when the battery displayed 30%, then next time I boot it up it will display the battery number from the recovery tool (anything from 0-30%). I have been charging and rebooting my phone for an hour now and it should say something like 60% but it only reads 21%. Is there any way to fix this? What happens when my battery really reaches 100% but my phone keeps charging it because it thinks it is lower? Is this dangerous? Any help would be appreciated.
The phone suddenly stuck at boot screen and was not able to load the system. whenever it loads the system it crashes BUT this issue was over when it was plugged into the charger.. the phone worked fine and battery is 52%.
I charged it fully 100% and wait an hour more and i calibrated it.. but once i removed the charger plug .. 1 min and the phone turned off and started bootlooping not able to boot the system without being plugged to charger.
so i bought a new battery... this battery also made the phone turn off at about 30% " without any warning of low battery" and not boot saying it is 0% and i put it on charge and charge it up to 100 and again stops around 40%/ this battery charges fast tho. according to the % displayed.
I m now going to charge the battery for 4 hours as I read since it is new, it should be charged for 4 hours.
Am i having problem due to battery or the phone is not estimating right the full charge of the battery or the phone have something corrupted or also the new battery is bad?
LG G3 D851 Fulmics 6.0 (full wipe + internal storage)
Thanks
Hi,
Bit long story, I know, but I'll have rooted Galaxy tab 3 8.0 and the problem for few weeks has been that the battery has gone mad.
So, when battery dies and tablet shutdown and I try to start again after a while there's no enough juice to even start fully or if it starts it shows 1% and shutdown immediately. That's as it should be I guess.
BUT, if I plug into charger when batt is empty and it has shutdown it suddenly shows very random percentages like 12%, 45%, 52%. 75% etc totally random even it should be something like 0%-1%.
If I then fully start it android shows that same big percentage but batt won't last a minute if I plug off the charging cord.
If I then plug in the charger again when it has shutdown it may show totally different percentage than last time but also dies as soon as I plug off the charger.
First time it could be like 12% but immediately after shutdown suddenly 71% etc.
Also when I try to fully charge battery it often jumps from around 70%-80% to 100% and while discharging it can suddenly drop from around 45% to 1%.
I have tried many things like wiping batt stats and fully charge from empty to full with power off/on, restart after full and charge again, leaved it screen on to slowly kill the batt etc.
So is that batt just badly worn after many years or is that "battery information file etc" somehow messed up that it can still be fixed/calibrated?
Ouh, and my current rom is AICP 12.1 (Nougat 7.1.1) if it matters.
Thanks