Database Users

Fake status of battery

Last night i changed my gt. Today it's changed, 100% percent. And icm goin' to check mail, use internet etc, after 5 mins. "Battery low", 1%. I change it again, after a few min it's back too 100% percent again, and the battery decrease each 10s. I restarted and it said 77%. I didn't get it. Did anyone get the same problem as me and anyone can help me???
Thank you very much!!
Sent from my GT-P1000 using XDA App

Your not alone, i always experience this, i just learned to live with it well until an maybe an update will fix this i think there is a problem with the android system, you can still try to calibrate your battery though it didnt work for me
Sent from my GT-P1000 using Tapatalk

Some expert told me that maybe it's 'cause the changer. Any ideas 'bout it?
Thanks!
Sent from my GT-P1000 using XDA App

hand2leg said:
Some expert told me that maybe it's 'cause the changer. Any ideas 'bout it?
Thanks!
Sent from my GT-P1000 using XDA App
Click to expand...
Click to collapse
It is definately the android system. There is another thread here where the samsung rep says they know about this version of android and the battery issue. My tab went to zero yesterday in ten seconds. It took me a long time to get the battery meter to show it was charging again.

texasreb said:
It is definately the android system. There is another thread here where the samsung rep says they know about this version of android and the battery issue. My tab went to zero yesterday in ten seconds. It took me a long time to get the battery meter to show it was charging again.
Click to expand...
Click to collapse
yep, i second you bro, if a lot of people are experiencing this then it may be due to some bug or something on the system i think its its definitely not the hardware if it is shame on samsung for manufacturing faulty devices, well lets hope for the update
Sent from my GT-P1000 using Tapatalk

If i root my gt and install the battery fixing applications on the market. Does it help?
Sent from my GT-P1000 using XDA App

Well i had the same gave it to the samsung service centre...and they replaced my battery...and now i have no.such problem...So i think its with the battery only...Dont know the cause though...
Sent from my GT-P1000 using XDA App

Has anyone tried calibrating the battery? I just received a Tab for testing and it was used prior. Some battery monitor apps reported less then 12hours available after a full charge. After I calibrated it, i'm getting ~28 hours / moderate use before battery is depleted. What amazes me with the Tab is that when idle (overnight) there is no decrease in battery levels and graphing shows a complete flat line when idle.
I love this device

bdfx69 said:
Has anyone tried calibrating the battery? I just received a Tab for testing and it was used prior. Some battery monitor apps reported less then 12hours available after a full charge. After I calibrated it, i'm getting ~28 hours / moderate use before battery is depleted. What amazes me with the Tab is that when idle (overnight) there is no decrease in battery levels and graphing shows a complete flat line when idle.
I love this device
Click to expand...
Click to collapse
I have done all of the battery recalibrations suggested here on xda to no avail. The only thing that has helped me is plugging in a portable kennsington battery by usb that tricks the battery indicator and it seems to slow down my battery drain.

Said at all, i have to get use to with it, right???
Sent from my GT-P1000 using XDA App

Try doing a resetting on the tab, and do a full charge, I mean let it charge for 8 hrs continuously.
If it can't work, bring it to Samsung for firmware upgrade (takes about an hour), after which do the same, long charging.
Last option, ask for an exchange with Samsung.
Rooting it has never been my option

henrylam said:
Try doing a resetting on the tab, and do a full charge, I mean let it charge for 8 hrs continuously.
If it can't work, bring it to Samsung for firmware upgrade (takes about an hour), after which do the same, long charging.
Last option, ask for an exchange with Samsung.
Rooting it has never been my option
Click to expand...
Click to collapse
Ok. I'll test and report asap. Thanks
Sent from my GT-P1000 using XDA App

Ok. After resetting my gt. It' have the same problem with battery. Maybe i'll have to go to Samsung..
Sent from my GT-P1000 using XDA Premium App

Ok, hope it will work after new fimware upgrades. Mine sure does.
If you can let go your tab to them for a couple of days, you can ask them to check on the status of the battery as well.
Sent from my GT-P1000 using XDA App

henrylam said:
Ok, hope it will work after new fimware upgrades. Mine sure does.
If you can let go your tab to them for a couple of days, you can ask them to check on the status of the battery as well.
Sent from my GT-P1000 using XDA App
Click to expand...
Click to collapse
Can i let my tab go? I dont think so. But i'll try..
Thanks
Sent from my GT-P1000 using XDA Premium App

Hey guys, I was in the same boat (you can see my posts on other threads) and I have tried pretty much everything from flashing rom, resetting, calibrating, and bump charging. Last night I decided to open up the tab and look at the battery, thinking maybe I should buy a new battery to test.
Long story short, I disconnected the battery from the board and let it sit for 15mins before reconnecting. I check every couple hours to see the battery level in android. So far, I only lost 1% for 20hrs in flight mode w/o any app running. I usually lost 20% overnight and would regain that after reboot. So the problem is GONE and the system is reporting the right battery percentage without fake dropping.
I will continue to monitor it and report back, but it looks great so far. Hope this helps other XDA fellows.

Thats actually ive been wanting to do just prick it open, funny though i my problem resolved it self, last night i keep rebooting my tab up to the point it hangs and froze then i left it like that for an hour then i pressed the power button for around 10 seconds to reboot it again, once it booted up it showed the correct percentage, now im still monitoring if the trick went well..
Sent from my GT-P1000 using Tapatalk

shinji21 said:
Hey guys, I was in the same boat (you can see my posts on other threads) and I have tried pretty much everything from flashing rom, resetting, calibrating, and bump charging. Last night I decided to open up the tab and look at the battery, thinking maybe I should buy a new battery to test.
Long story short, I disconnected the battery from the board and let it sit for 15mins before reconnecting. I check every couple hours to see the battery level in android. So far, I only lost 1% for 20hrs in flight mode w/o any app running. I usually lost 20% overnight and would regain that after reboot. So the problem is GONE and the system is reporting the right battery percentage without fake dropping.
I will continue to monitor it and report back, but it looks great so far. Hope this helps other XDA fellows.
Click to expand...
Click to collapse
Hi Shinji, it is quite unbelievable that the tab only drain 1% for "20hrs". But it is great, if opening the tab can solve battery issue. Now, I myself encounter some other new problems, after I solved the sudden drop in battery issue by upgrading to new firmware (e.g. 50% => ask me to shut down). Now, no matter how I charge, it will remain 67 or 70%............
Do you have the instruction to open up the tab, or any link which you can lead me too? Thanks.

Hey henrylam do you charge phone whilst on and how long do you charge for before you get fed up waiting for it to move from 70% and remove charger ?
Sent from my GT-P1000 using XDA App

wildcat777 said:
Hey henrylam do you charge phone whilst on and how long do you charge for before you get fed up waiting for it to move from 70% and remove charger ?
Sent from my GT-P1000 using XDA App
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Click to collapse
I try both, on and off, sometimes it work sometimes it doesn't. After I have done factory reset, it seems ok for first 3 cycles. After that, the problem surfaced again.
Sometimes, it just stop charging at 65 (curvefish battery indicates) but battery icon shows like 85%. I felt like smashing the Tab and get myself a new Ipad. I am thinking to send it again to Samsung this Friday, and let them investigate for a while (hopefully 2 weeks will be sufficient). Damn it, my wife tab has no such issues. She didn't even do an upgrade on her firmware.

Losing Battery life pretty fast now.. why?

I flashed my vibrant to bionix 1.3.1 a while back, pretty much a week after is was released. Its been great up to about 2-3 days ago. I had a full charge at work at today around 2 pm, I got home and checked the battery life at around 6 pm it was at 72%. I sent out about 4 texts lastnight. Got up this morning is was at 44%. I used to get about 2-3 days out of light use. It will probably be dead by 2 pm again today.
What gives?
Network data off -
Black background -
Brightness is the lowest -

Idk maybe randomly reading it wrong? P.s. Why dont people charge their phones at night?!?!? Thats what I do

Oh i do as well usually. But like i said, the battery is starting to drop so fast that by lunch that day it was already at like 49%. By 2 pm is was full and so on. I just dont understand why its dropping so fast thats all.
Might have something to do with the battery

Check what's running in the background. The other night I was just using the phone normally and put it to sleep, checked it a few times and it was dropping 1% every 15 minutes or so. Noticed it kept checking into something. VVM and Market Checkin was running, killed it and it seemed to help. Also discovered (might not be true) that the New MAPS and GMAIL apps constantly check in and drain the battery after removing the updates phone seems to last longer/as it did before..:/

oo maybe that might be it. I Just updated a boat load of my apps a few days ago. P.s. how do you remove just the update?

Daymic said:
I flashed my vibrant to bionix 1.3.1 a while back, pretty much a week after is was released. Its been great up to about 2-3 days ago. I had a full charge at work at today around 2 pm, I got home and checked the battery life at around 6 pm it was at 72%. I sent out about 4 texts lastnight. Got up this morning is was at 44%. I used to get about 2-3 days out of light use. It will probably be dead by 2 pm again today.
What gives?
Network data off -
Black background -
Brightness is the lowest -
Click to expand...
Click to collapse
WIDGETS IN BACKGROUND ON DEKTOP ? SHUT THEM OFF
TURN OFF USB DEBUGING
REMOVE WI-FI CALLIN
IN GALAXY S TUNER (APP FROM MARKET ) PUT MEMORY MANAGEMENT ON AGRESSIVE
those are just a few tips , if You didn't install anything that would change Your battery behavior TRY TO CHARGE YOUR PHONE IN WALL OUTLET INSTEAD OF COMUPUER USB ,also did You flash any updates to Bionix that got released because of so some of them contain update to modem so if previous bionix was on JL4 modem which is fast and battery savy new update might off reflashed your modem to newer one as fast as old but with worst battery . good luck i can give u million tips how to save juice , oh btw :
http://forum.xda-developers.com/showthread.php?t=931351
also clean up Your battery stats in clockwork and recharge it with wall outlet Your battery might be recalibrated and when it shows 2% left u might have 10 really instead that's why clean battery stats and recharge.

or sadlly Your battery cant hold the juice anymore because it was recharged to zero few times too many , sorry

This is crazy. I just came to xda to post my bionix 1.3.1 battery problem. I been running it for a week and no issues. But this morning I took the phone off the charger and within 10 minutes of using it I was down to 85%. Usually after my morning usage I'd be around 93-95%. But that's not the issue I wanted to post.
I was trying to wait for Black Ice since Frost had the best battery life of any rom I've tried...just not feeling the Frost theme. So I started to download the Frost zip & got the phone on the charger.
Even after I put it back on the charger my battery life kept going down. Plugged it in at 85% and a few minutes later I noticed it was at 83%
Sent from my SGH-T959 using XDA App

SaintJimmy76 said:
This is crazy. I just came to xda to post my bionix 1.3.1 battery problem. I been running it for a week and no issues. But this morning I took the phone off the charger and within 10 minutes of using it I was down to 85%. Usually after my morning usage I'd be around 93-95%. But that's not the issue I wanted to post.
I was trying to wait for Black Ice since Frost had the best battery life of any rom I've tried...just not feeling the Frost theme. So I started to download the Frost zip & got the phone on the charger.
Even after I put it back on the charger my battery life kept going down. Plugged it in at 85% and a few minutes later I noticed it was at 83%
Sent from my SGH-T959 using XDA App
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Click to collapse
lso clean up Your battery stats in clockwork and recharge it with wall outlet Your battery might be recalibrated and when it shows 2% left u might have 10 really instead that's why clean battery stats and recharge. I WASNT CLEAR ENOUGH I GUESS ...OH WELL.

Daymic said:
oo maybe that might be it. I Just updated a boat load of my apps a few days ago. P.s. how do you remove just the update?
Click to expand...
Click to collapse
Just go to the market, tap menu and then go to DOWNLOADS
look for GMAIL and MAPS, click on them and then where it says "Uninstall update" you want to click that. Done.

truee u might want to disable location access if its on too

if u updated ,find out which modem the previous rom u ran and reflash it to the modem u had before.

I had this problem with nero after a month of use. Wipe battery stats when the battery is fully drained. Fixed my battery problems.
Sent from my SGS Vibrant

Thx guys, ill wipe the battery stats and unistall the updates.

Does USB debug consume power?
Don't blame me, blame my keyboard's autocorrection algorithm.

demize! said:
Does USB debug consume power?
Don't blame me, blame my keyboard's autocorrection algorithm.
Click to expand...
Click to collapse
i'm sure it's not.
Sent from my SGH-T959 using XDA App

I have the same problem. I have system panel running all the time. When I sleep, the phone sleeps too and uses about 1% of battery per hour. But when im actually using the phone, even if the use is minimal like sending a few texts etc. The battery consumption is far greater than the use. Top apps in system panel monitoring is usually system process and system itself. How do I correct this issue?
Sent from my Samsung Vibrant (Bionix-V 1.2.1) using XDA Premium app

Daymic said:
Thx guys, ill wipe the battery stats and unistall the updates.
Click to expand...
Click to collapse
I had a issue a while back. What I did to fix it is go with the standard rom. Then slowly I would put one or 2 apps back on. After a day or so I found out which one was to blame and got rid of it.

sLiKK said:
I have the same problem. I have system panel running all the time. When I sleep, the phone sleeps too and uses about 1% of battery per hour. But when im actually using the phone, even if the use is minimal like sending a few texts etc. The battery consumption is far greater than the use. Top apps in system panel monitoring is usually system process and system itself. How do I correct this issue?
Sent from my Samsung Vibrant (Bionix-V 1.2.1) using XDA Premium app
Click to expand...
Click to collapse
+1
I have the *EXACT* problem. It bugs me so much. Good to know I'm not the only one experiencing this. Everyone brags about how their phones lasts for 3 days and I call BS.

Deggy said:
+1
I have the *EXACT* problem. It bugs me so much. Good to know I'm not the only one experiencing this. Everyone brags about how their phones lasts for 3 days and I call BS.
Click to expand...
Click to collapse
I agree with you also. These guys must have some super batteries to get that kind of life out of it. lol.

Battery 0% - Unkown

Hi,
My battery info screen is always showing 0% - Unknown. I´ve tried different charging options but with no success.
The battery is charging and when I connect the Nexus 7 to the adapter/pc is says charging - 0% when locked.
Any help is appreciated.
Thanks

Had the same problem. It was not ROM specific. Even though the reading said 0 it was still charging normally (as far as I could tell).
I called Google (I bought my Nexus 7 from the Play Store) and they replaced it. I think that the battery sensor was bad.
Sent from my LG-P999 using xda app-developers app

Charge your battery to 100 percent, for the best that you can assume as 100 percent - about 3 hours, - and then run this program https://play.google.com/store/apps/details?id=com.nema.batterycalibration root required
Sent from my rooted Nexus 7 via xda-developers app.

MrSchroeder said:
Charge your battery to 100 percent, for the best that you can assume as 100 percent - about 3 hours, - and then run this program https://play.google.com/store/apps/details?id=com.nema.batterycalibration root required
Sent from my rooted Nexus 7 via xda-developers app.
Click to expand...
Click to collapse
wouldnt wiping battery info from CWM do the same thing?

hhwong said:
wouldnt wiping battery info from CWM do the same thing?
Click to expand...
Click to collapse
OP did not explain if they were rooted or not.
Sent from my rooted Nexus 7 via xda-developers app.

Reflash kernel

Just to let everyone know I tried both that app and clearing battery sats in CWM, neither did anything. I even ran it dead and then fully charged with no change. The OP may have a different problem but in my case I definitely think it was a hardware sensor issue.
Sent from my LG-P999 using xda app-developers app

Um, weird, I came home after leaving my tablet on my desk all day at home, with about 35% battery.
It was dead. Like really dead. Dead dead. I don't know if it should've run down 35% totally idle; I'd left it for 3 days before without a problem.
Now when I plugged it in, it turned straight on. Google Screen -> Lock Screen. No colored X.
Showed 0% for 10 minutes. The battery graph was especially weird. For one thing, it had locked the stats and showed as still on battery basically. For another, it showed going from the low end of green to instantly dropping to 0%, red. Unplugged it, and it died instantly.
I'm letting it charge now with it off. Quick power button press shows the charging indicator thing.
I actually have an RMA out for this one for the touch screen issues, so it doesn't matter, but still... weird.

battery sensor/calibration issues
Old thread but I thought I'd add to it for other people with the same problem.
I have basically have the same issue on a stock, rooted 16GB Nexus 7. It's highly intermittent.
It first reared it's head about a month after I got the device (in Aug 2012), on the original firmware. My nexus 7 wouldn't (appear to) charge past 25% and would shut itself off after being on for only a few hours. I spent a day trying to fix it, including wiping the device, but nothing worked. Then magically, a few days later, the problem was gone.
The Nexus 7 worked fine for another month or so and then one day, after having charged it for several hours, I noticed that it was reporting a 0% charge. (Firmware was still stock but had been updated) This time it didn't power off, it just misreported it's charge. I could still run it for 10 hours or so, even though it said that it had a 0% charge and that I should connect the charger. I tried the "battery calibrator" mentioned in this thread which didn't seem to work but the next day, the device reported it had a charge. It's been randomly fluctuating between reporting 0% and a having charge every since. Sometimes it works fine for several days but then it will say 0% again.
It hasn't really affected my use of the device but it can be inconvenient not knowing how much charge you have left. Today I finally called Google and explained the problem and they promptly offered to exchange it. Hopefully this is not a design flaw but a faulty component from bad batch..

There's more than a good bit of bad advice in this thread. That anyone would waste people's time by recommending a ”battery calibration” app or to wipe battery stats is disheartening, as it is widely known that they have no correlation to battery indication.
More often than not, it seems, this problem with the N7 involves the battery connector not being properly seated.
Sent from my Nexus 7 using Tapatalk HD

I'm also having a similar problem, though when my nexus 7 completely dies from the battery I plug in and right away power back up and when it comes to the home screen with 0-1% charge it right away powers down. I tried leaving it off while pluged in let it charge for 5 mins and then power back up again till I see it have a minimum amount of charge, it seems to work not sure if its ROM or kernel related, I'll keep an eye on it.
There's a helpful article that seems to help other nexus 7 users, hope this helps
http://www.droid-life.com/2012/12/27/fix-nexus-7-refusing-to-charge-try-this-trick/
Via Galaxy Nexus [LTE]

I have the same problem with my nexus 7 3g.
Factory reset does not help.
Finally open the back cover (quite easy) and found that the battery cable connector is loose. So I tightened and my tablet is well again.
Hope this help.

Yeah what worked for me was to also unplug my battery. Seemed to correct itself after that. Mine would shut off showing a charge of 60%.

dudung0 said:
I have the same problem with my nexus 7 3g.
Factory reset does not help.
Finally open the back cover (quite easy) and found that the battery cable connector is loose. So I tightened and my tablet is well again.
Hope this help.
Click to expand...
Click to collapse
Does the back just unsnap like a regular battery door?

I have issues sometimes. Like the other night it charged all night and when I woke up it was fine, turn off the alarm on it and had breakfast. Came back and it wouldn't come on. Tried all I could without taking it apart. Ended up removing the back cover, unplugging the battery for ten seconds and then it worked fine. Battery was at 100% once it booted up.
---------- Post added at 08:07 AM ---------- Previous post was at 08:07 AM ----------
atistang said:
Does the back just unsnap like a regular battery door?
Click to expand...
Click to collapse
Use your fingernail to get between it and the chassis. It pops off pretty easy. Just be careful. I'm sure YouTube has a few videos showing it.

atistang said:
Does the back just unsnap like a regular battery door?
Click to expand...
Click to collapse
search for ifixit+nexus+7+battery
You can use your fingernail.

Nexus 7 - Battery 0% Unkown.
dudung0 said:
I have the same problem with my nexus 7 3g.
Factory reset does not help.
Finally open the back cover (quite easy) and found that the battery cable connector is loose. So I tightened and my tablet is well again.
Hope this help.
Click to expand...
Click to collapse
Hi.. I Have the same model and I had the same problem...
I made the turn off method (https://plus.google.com/+DerekRoss/posts/563EVVEPMDS) and did not work...
I rooted my Nexus to calibrate the Battery (http://forum.xda-developers.com/showthread.php?t=1838429) and did not work.
But the in my case the most simple solution works : Unplug /plug the Battery (http://productforums.google.com/forum/#!msg/mobile/Knrn4DThksg/ovuWYHUytZ0J).
Show this video about how to do it:
http://www.youtube.com/watch?v=bjh0H6SZHRM&list=PLBGUp1nK51h0Zyb2wIJjIhtTVQKyfj4BB&feature=mh_lolz
I hope have luck
bye.

[Q] Fault battery indicator [SOLVED]

Hello, :fingers-crossed:
i'm having a lot of troubles with the battery of my Nexus 4. I'll try to explain this strange situation...
Few days ago i noticed a ridicoulous battery drain while i was, as usually, listening to some music with my bluetooth A2DP headset Jabra HALO2. It was something like 1% every less then 1 minute. At first i thought it was due to a recently upgrade to CM10.2M1 (which is a monthly build of Cyanogenmod on 4.3) or due to a 5 minutes fast charge from the 2A charger of Nexus 10 that could have "upset" the battery.
At first i started focusing on the software side problem; i tried CM10.2RC1, CM10.2, stock 4.3, stock 4.4 and now CM11M1, and, while doing all of those wipes, i noticed that not only the discharge was insanely fast, but even the charge! The graph on the setting panel is almost vertical while cahrging, like 3% to 40% in 25 minutes.
But that's not all, sometimes, after rebooting, i noticed a battery level different from the previous boot, so i decided to wait a full discharge and then fully recharge it. I have waited the 0% (not so much time ) putting the screen always on and the LED flash too, then, i tried few times to turn it on and every time, after the boot screen disappeared it immediately started to turning off due to 0% battery.
Moreover, for being certain, i tried to turn it on in recovery and wait how much time it would take to consume the lasting charge on the battery. Surprisingly, after 30 minutes it was still there! I tried a reboot into system, showing me a 10% remaining battery (WTF), which discharged to 0% in like 3 minutes. Now i'm waiting the whole night the real discharge in recovery with screen always on, hoping that a full recharge could fix it. I would like to evidence that the phone do not overheat during both charghe and discharge, so i guess the battery itself may be ok.
I'm still not sure if it's a software problem, and i'm worrid if it could be an hardware related issue. Maybe it could have been the charge from the 2A adapter.
I really don't know what to do next. Someone knows how to help me?
Here 2 screenshoots, I wasn't able to upload it normally so here the links:
https://drive.google.com/file/d/0ByucdM-SwPNnMlFUOGU4bXkzaGs/edit?usp=sharing
https://drive.google.com/file/d/0ByucdM-SwPNnZEtXczNuTXhiMGc/edit?usp=sharing
EDIT:
I've done a full discharge until even the full hybernation has been shutted down, but seems that it hasn't solved anything. I've also noticed that in the battery stat is missing the display consumption (WTF?!?). Maybe it's a CM11M1 bug, it happen even to my Nexus 10. Here other shots:
https://drive.google.com/file/d/0ByucdM-SwPNnazVacUNZeEZkUlk/edit?usp=sharing
https://drive.google.com/file/d/0ByucdM-SwPNnRHU2QlJibk5TVVE/edit?usp=sharing
EDIT:
As happened to the N10, after a while the display appear in the stats:
https://drive.google.com/file/d/0ByucdM-SwPNnMEozbzNRVGdzSHc/edit?usp=sharing
EDIT:
I've noticed just now that while I was waiting a real full discharge of the battery the TWRP couldn't show me the battery percentage. Really strange...
[SOLVED]
In summary, the problem was the combination of kernel+ROM. The CM with his kernel on N4 was consuming tons of electrons. I tried Purity+Hellscore, now i reach few days of low usage and one and half of medium usage

How old is your phone? You might be able to get a replacement from Google under warranty.
Sent from my Nexus 4 using xda app-developers app

I don't think it'd be the 2A charge, I use the 2A charger on my battery all the time.
Sent from my Nexus 4 using Tapatalk

EDITed main post!
sshark said:
How old is your phone? You might be able to get a replacement from Google under warranty.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
It have 9 months, and yes is still under warrenty, but I've bought it in Spain, and I live in Italy. I think this will be hard to solve

I have some strange problemi too.
Sometines the phone reboot itself and the battery drops (i tried to flash all stock: recovery, bootloader,ROM ecc..)

It could be a faulty battery.. Read this topic, it looks like you have the same kind of problems.
Do you also have simlocks/loss of network connection?

EDITed main post!
Faeshaas said:
It could be a faulty battery.. Read this topic, it looks like you have the same kind of problems.
Do you also have simlocks/loss of network connection?
Click to expand...
Click to collapse
I've already read this topic, i think the source of the problem may be related with mine, but symptoms are different. It is strange that this happened 9 months later!

Gully discharging the phone, rebooting, discharge again if any, reboot. Connect charger, charge full. Reboot, charge full again if any, reboot. This always worked for me.
You can also try to fully discharge, completely power off the phone and let it fully charge while powered off ( only a white battery should be shown on the display).
Sent from my Nexus 4 using xda app-developers app

I'm having the same issues with my phone.
Sent from my Nexus 4 using xda app-developers app

Oxious119 said:
Gully discharging the phone, rebooting, discharge again if any, reboot. Connect charger, charge full. Reboot, charge full again if any, reboot. This always worked for me.
You can also try to fully discharge, completely power off the phone and let it fully charge while powered off ( only a white battery should be shown on the display).
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Already done, nothing....

Did all of u found the problem? Cause it seems i have the same...
Sent from my Nexus 4 using XDA Premium 4 mobile app

Amiramac said:
Did all of u found the problem? Cause it seems i have the same...
Sent from my Nexus 4 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Unfortunately, no. Probably it is a battery related problem, i'm going to replace it and see what happen. In the meantime not even PurityROM+HellsCore kernel may handle this battery draining...

Odd battery problems

Hello,
My N4's battery has been behaving really weird over the past days. My phone completely fails to predict the battery's current charge and it often would shut off at for example 40%. When I reboot it's at 0% charge and shuts down again. The battery at that point is 'completely' empty. Which means that even date and time have been reset!
You can see the sudden battery drop here:
Stats (after few minutes on charger):
The weird thing is, that although the screenshot says 4h runtime on battery, it was running more like 8 hours at that time.
The screen time is also calculated completely wrong. It should be more like 2 hours, but it says 43 minutes:
Besides that, it happens often, that I unplug it after a night of charging and while it says 100% while still plugged in, once I remove the cable it drops to ~90%, sometimes even lower.
This was today morning after a night of charging (same day as screenshots above). Mind, that I had to replug it to achieve 98%, after I first removed it before showering it was at 91%.
I'm running Franco Kernel and Mahdi ROM. Though the problem exists on other kernels and roms as well.
Should I revert to stock and completely whipe everything? The only thing I restored from Titanium Backup during Rom switches are user apps and wifi networks. So I wouldn't consider it dirty flashing, right?
I hope the battery itself isn't damaged, since I get a maximum of 2 hours OST, where a week ago I would get around 3,5h-4h..
Thanks for your input.
Edit: Forgot to say, that another problem is, when using the wall-charger, it would tell me after 20 minutes charging from 0% battery that it's at 100%, while after a reboot it again shows only 20-30%.

try using xposed disable battery critical shutdown to recalibrate the battery
if dosent work -> rma it.

opssemnik said:
try using xposed disable battery critical shutdown to recalibrate the battery
if dosent work -> rma it.
Click to expand...
Click to collapse
Thanks. As it has shut down again after about 3h on battery (1h of usage) I've noticed a relatively big buldge on the back of the phone. I think the battery somehow popped
I have absolutely no idea how that happened. Will write to the LG support now.

opssemnik said:
try using xposed disable battery critical shutdown to recalibrate the battery
if dosent work -> rma it.
Click to expand...
Click to collapse
what is rma?
edit: searched, now i know what is..

bragih said:
Thanks. As it has shut down again after about 3h on battery (1h of usage) I've noticed a relatively big buldge on the back of the phone. I think the battery somehow popped
I have absolutely no idea how that happened. Will write to the LG support now.
Click to expand...
Click to collapse
yeah, the n4 battery is really random. mine is doing that too, called lg and they will exchange it in few days

sergio_f said:
what is rma?
edit: searched, now i know what is..
Click to expand...
Click to collapse
Return To Manufacturer, looks like your battery is worn out. If your N4 is over a year old you'll need to buy a new battery.
Sent from my Nexus 4 using Tapatalk

Any recommendation for where to buy a new battery?

I have same problem bro
Your shutdown at 40% mine loses network at 40% and shut down at 30%
Sent from my Nexus 4 using Tapatalk 4
---------- Post added at 10:29 AM ---------- Previous post was at 10:28 AM ----------
I had no battery problem till my display cracked and i went to service center
Sent from my Nexus 4 using Tapatalk 4