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Phone turning off at 50% battery life

For the last week or so, I've noticed that my phone now powers off at 50% battery life.
Battery Monitor Widget reports the battery still having ~1000mah at this level, but the phone just dies. I feel like this is incorrect, because sometimes if I run it down slow near 50%, it will do that thing where it will flash RED on the LED when you plug it in for the first time (super low battery indicator).
I'm running AOKP 4.2.2 MR-4, but i've tried a few different roms, dirty and full wipe (factory clean), along with various kernels, but my phone continues to die at 50%.
Any ideas on how to fix this?

See attached screen shot for what I"m talking about. Battery drain will look fine, then all of a sudden, BOOM 0 percent, and I have to charge it.
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Yikes, definitely something going on there. Are you running a custom Rom?
Sent from my Nexus 4 using Tapatalk 2

thatguy188 said:
Yikes, definitely something going on there. Are you running a custom Rom?
Sent from my Nexus 4 using Tapatalk 2
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Just went completely back to stock and then put the latest AOKP back on. Still seeing some weirdness. It's like it doesn't even use half the capacity of the battery (see discharge/charge graph)

h41cyon said:
Just went completely back to stock and then put the latest AOKP back on. Still seeing some weirdness. It's like it doesn't even use half the capacity of the battery (see discharge/charge graph)
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If I had to guess, I would say you battery stats file is out of sync. After flashing different ROM's on a G1, I would have to re-calibrate the battery stats by letting the phone battery slowly die (phone powers off), then fully charge while phone was still off (8-12 hours), turn back on and repeat one more time. The stats file would fix itself.

I'm experiencing the same issue, but mine is not as severe. I've dropped as much as 25% battery, but the phone has never reached auto shut down. I'm worried that this issue will cause the red light of death.

SpookyTunes said:
If I had to guess, I would say you battery stats file is out of sync. After flashing different ROM's on a G1, I would have to re-calibrate the battery stats by letting the phone battery slowly die (phone powers off), then fully charge while phone was still off (8-12 hours), turn back on and repeat one more time. The stats file would fix itself.
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Click to collapse
yea def sounds like battery stats not updating properly

Battery drop after restart

Hi. My problem starts few month ago. When i do a restart i got a huge battery drop. I got the juice so my phone wont turn off just false battery level :S i'm using purity with hells kernel, i try lots of kernels but no effect. I tried battery calobration app buz no effect. When i use my phone normally and didnt restart it, everything normal. Someone got a solution to this?
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X DoZ3R said:
Hi. My problem starts few month ago. When i do a restart i got a huge battery drop. I got the juice so my phone wont turn off just false battery level :S i'm using purity with hells kernel, i try lots of kernels but no effect. I tried battery calobration app buz no effect. When i use my phone normally and didnt restart it, everything normal. Someone got a solution to this?View attachment 2596718
Sent from my Nexus 4 using Tapatalk
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Did you dirty flash your rom or something? Try a full wipe and clean install, then see if this problem persists.

tommypacker said:
Did you dirty flash your rom or something? Try a full wipe and clean install, then see if this problem persists.
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Click to collapse
I always do a clean flash when i install a rom, wipe everything.
Sent from my Nexus 4 using Tapatalk

X DoZ3R said:
I always do a clean flash when i install a rom, wipe everything.
Sent from my Nexus 4 using Tapatalk
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That's weird. It could be a hardware problem but I'm not entirely sure
Sent from my Nexus 4 using Tapatalk

tommypacker said:
That's weird. It could be a hardware problem but I'm not entirely sure
Sent from my Nexus 4 using Tapatalk
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i hope not, good thing is that i didnt lose juice, just got a false low value. as u can see on the picture im on 1% and im actively using the phone for 3 hours :\

I have the exact same problem, started when I was on vanir rom with ak kernel and after several roms and kernels the problem persists. Now I'm on carbon with ak. Sometimes when I have 30% left it shuts down and won't turn on like it's with empty battery, but when I plug it it resumes charging from the same level it was before the shut down and if I unplug it, the battery drains normally from 30 to 0. It's pretty weird, maybe it's a battery problem. I tried calibration as well.
Sent from my Nexus 4 using Tapatalk

Funny, I was about to open a thread about the exact same issue when I saw yours.
I'm running Mahdi ROM with the Kernel that came with it, but I have the same issue with Franco Kernel.
I was having a similar problem with AOKP + Franco where after I unplugged it from the charger after the night it would immediately drop down to 90% or less.
Here's what happened:
Yesterday my phone was at around 50% when it suddenly shut off. When I turned it back on it showed 0% battery and immediately shut down again. After about 1 hour on the charger it showed 100% battery, being suspicious, I rebooted and it was only at 32%. This repeated around 2 or 3 times (always showing 100%, after reboot way less).
I plugged the charger in for the last time and went to sleep.
Today morning I unplugged it and after about 10 minutes idle it went down to 88%. After that the consumption seemed a bit much, but still "ok".
About an hour ago at around 45% it shut off again, battery empty again. :crying:
I recharged it for about 40 minutes. After that it showed 100% battery again. I did a reboot and it's back down to 43%. Back to the charger, 5 minutes later it is again showing 100%.
I would like to know if there's any solution, since I need my phone on a travel soon and I need to rely on it..

yesterday i install the latest factory image and stay on stock with just a root, looks like its working 'cos my values not jumping after restart, i keep testing

it seems my problem solved with factory image install

Nexus 4 doesn't fully charge

I have been experiencing this problem the past weeks, maybe months. The phone won't fully charge and usually stay at a value around 80 - 85%. Sometimes, it even reports to be 100%,and at the moment you unplug it from the wall, it drops to these values. Sometimes, however, it does charge to a full value, but anyway, the battery life is horrible.
Here you have a screens hot of the battery stats.
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The rom I use is cyanogenmod 11. I always have been using this rom, since the moment I purchased the phone.
Like three months ago, my phone dropped to the floor and broke the screen. My home insurance company replaced the screen, so I think, even the phone is a year and three months more or less, I can't call LG for a replacement, can I?
I'm a bit worried because I'm making a long three week trip in some weeks, and I need to have a working phone.
I don't know if going with battery replacement, if try to flash stock and see how it behaves or what to do.
BTW. just for testing if it was the rom or not, I left the phone charging while switched off and got the same results. The original wall charger has the same results as if I charge it with a Samsung charger.
Thanks

I have the exact same problem, I posted about it a couple of days ago.
I have already replaced my battery once, that was almost six months ago, and now, I'm facing the same problem again.
I'm not sure if is only a battery issue, because this is my second battery with the same problem.

There is an app called batterie calibration by néma. I dont want to give up on your batterie/phone, so at least try this app out

I had the same problem with my old phone. What I would do was let the battery run down to 0% and let it switch off. Then i would charge it to 100% and it would work. Its only a temporary solution though as the battery would soon stop charging above a certain percentage after a few days.
I did change the battery on it but i experienced the same problem,it may be that the new battery was also faulty (if it was the battery's fault in the first place). What I did notice though was that when it did not charge above 80 or 85%, when the battery came to about 20% it would stay on 20% longer to compensate for the "lost" percentages. In essence it does charge to 100% it just doesn't show that on that battery bar.
Maybe give this a shot, it might work well for this phone. No harm in trying. You could also try reinstalling the ROM or returning to stock. For me on my old phone returning to stock did the trick.

same problem
i have exactly the same problem,'ive changed two batteries but there's still this problem.
give me a solution please!! i tried different roms, and flashed factory images of android 4.3 nd 4.4.4

It seems to be a common problem with this phone - not charging to its full potential. The other issue I have experienced - the phone goes dead for no reason. After trying a number of time trying to get it to turn on, it eventually does. I am waiting for the day that it actually does just die and I can purchase a more reliable phone.

SandiiDee52 said:
It seems to be a common problem with this phone - not charging to its full potential. The other issue I have experienced - the phone goes dead for no reason. After trying a number of time trying to get it to turn on, it eventually does. I am waiting for the day that it actually does just die and I can purchase a more reliable phone.
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Something wrong with your phone. There is no such common issue. I've been using this phone since last 4.5 years.
Instead of waiting for it to die, is it not good go ahead and get a new phone?
Nitin

Nexus 4 sudden battery drops, sim pin requests

Hello all!
So I've owned the N4 since May 2013, it worked great, but right now some severe issues popped up. These issues include:
1) Sudden battery drops for no reason at all. The battery stats look horrible and nothing is draining the phone. See for yourself - added screenshot in the bottom of the post.
The battery drops often lead to a weird flat charge level. For instance, the battery immediately dropped for 20-30% (let's say, leading to a 50% charge), but that that 50% charge can remain for quite a while. Once it was like that even on 1%. Restarting the phone sometimes may bring the battery % up, but still the draining is unbelievable.
2) When the battery is below ~15% all hell breaks loose. I'm loosing the cell signal, sim pin requests pop. Basically, it's either charge the phone at this point or the phone will die in a couple of minutes. If you're using the phone with such low charge, the (what i assume) radio module restart will kill it soon.
Phone never been repaired, the screen is original. Also, the proximity sensor died (i guess) and I've had to flash xposed and install the "turn off prox sensor" module.
What I've already done:
1) Format cache
2) Factory reset
3) Clean flash stock ROM
4) Clean flash other ROMs (currently on Android M Chroma)
5) Flash older stock radio modules (thought it may prevent radio restarts)
6) Limiting my radio to only WCDMA mode (3G or nothing, instead of 2G/3G mode)
7) Replaced the battery few days ago (didn't help at all)
One more thing: my wife has the exact same phone, bought approx. same time ago. Bought from totally different places (one from Poland, second from Italy). Her phone has very similar symptoms, although, not to that extent. It means that her phone battery is also suddenly dropping and sometimes sim pin requests appear, but it's less frequent and not so bad as with my phone.
If you have any ideas how to pinpoint what's wrong or maybe even a solution - that'd be great. Thanks in a advance.
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Probably time for a new battery as the phone has been used for almost 3 years.

It's a number seven in "what I've done" list it was my last resort to change the battery and that didn't help at all (immediately saw the same symptoms). That's why I'm clueless and wondering if the phone is basically dying...
Thanks for the reply though.

Are you sure the replacement battery is good?

audit13 said:
Are you sure the replacement battery is good?
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Yeah, it's new and bought from the reliable store.

Try the new battery in your wife's phone?

That would require buying one more battery, because the original is so strongly glued to the case, that I will destroy it in the process of taking out (like I did with my own). So not really the best option to continue buying new batteries for allegedly fried phone

I understand. Maybe you need to apply more heat to loosen the adhesive?

Any Luck ?
ravenua said:
Hello all!
So I've owned the N4 since May 2013, it worked great, but right now some severe issues popped up. These issues include:
1) Sudden battery drops for no reason at all. The battery stats look horrible and nothing is draining the phone. See for yourself - added screenshot in the bottom of the post.
The battery drops often lead to a weird flat charge level. For instance, the battery immediately dropped for 20-30% (let's say, leading to a 50% charge), but that that 50% charge can remain for quite a while. Once it was like that even on 1%. Restarting the phone sometimes may bring the battery % up, but still the draining is unbelievable.
2) When the battery is below ~15% all hell breaks loose. I'm loosing the cell signal, sim pin requests pop. Basically, it's either charge the phone at this point or the phone will die in a couple of minutes. If you're using the phone with such low charge, the (what i assume) radio module restart will kill it soon.
Phone never been repaired, the screen is original. Also, the proximity sensor died (i guess) and I've had to flash xposed and install the "turn off prox sensor" module.
What I've already done:
1) Format cache
2) Factory reset
3) Clean flash stock ROM
4) Clean flash other ROMs (currently on Android M Chroma)
5) Flash older stock radio modules (thought it may prevent radio restarts)
6) Limiting my radio to only WCDMA mode (3G or nothing, instead of 2G/3G mode)
7) Replaced the battery few days ago (didn't help at all)
One more thing: my wife has the exact same phone, bought approx. same time ago. Bought from totally different places (one from Poland, second from Italy). Her phone has very similar symptoms, although, not to that extent. It means that her phone battery is also suddenly dropping and sometimes sim pin requests appear, but it's less frequent and not so bad as with my phone.
If you have any ideas how to pinpoint what's wrong or maybe even a solution - that'd be great. Thanks in a advance.
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Click to collapse
I am facing a similar issue, did you find any solution ?

Unfortunately not.
Battery replacement did not help. Also tried replacing charger port controller on the motherboard, but that did nothing as well.
Ended up buying new phone and selling this one for dirt cheap amount of money.

The same started happening to me a couple weeks ago.
I think it's time to change to nexus 5 (or similar)

Same is happening to me, the cheapest solution is to use a power bank as I'm not ready to leave my Nexus 4.

Moto G4 issues after latest patch of Nougat

Hi,
I updated my Moto G4 to Nougat last week. Everything was fine. Yesterday there was some 114 mb ota update. I downloaded it and since then I am facing two issues-
1. Whenever I lock the screen using the power/lock button on the side, the screens becomes black and white for a millisecond and then it gets locked. I haven't seen any other phone's screen becoming black and white for a tad and then lock. Is everyone experiencing the same?
2. The battery is draining just way too fast. 40% depletion since morning. I only used the phone to make two 4 minutes phonecalls. I did not install any new app or game. Any troubleshooting for this?
This is the build number etc.-
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Thanks

hey i got the xt1621 version and flashed the same firmware you are using, i'm not having the same probles you have, but i did a full reset after i flashed, my phone is bl locked so no root, the only problem i see is that i feel the phone a little slow, like it takes longer to open apps

billubakra said:
Hi,
2. The battery is draining just way too fast. 40% depletion since morning. I only used the phone to make two 4 minutes phonecalls. I did not install any new app or game. Any troubleshooting for this?
Thanks
Click to expand...
Click to collapse
Though it's unrelated to this update, when I first got this phone last year I had the same problem with the battery. What fixed it was manually recalibrating the battery. If i remember the steps correctly it was something like: Let phone fully discharge, plug it in and charge it with the power off for about 8 hours, power it on and keep it on the charger for at least another hour.
I updated my phone to Nougat yesterday and manually updated to the same update you're on. I haven't noticed that black and white issue with the lock screen and, if anything, the battery life seems better than on marshmallow. Hopefully battery recalibration helps out. A factory reset may not be a bad idea as well, especially if it wouldn't be a big inconvenience.

idriff said:
hey i got the xt1621 version and flashed the same firmware you are using, i'm not having the same probles you have, but i did a full reset after i flashed, my phone is bl locked so no root, the only problem i see is that i feel the phone a little slow, like it takes longer to open apps
Click to expand...
Click to collapse
Well I updated the phone via OTA update only, did not flash anything. The phone ain't slow though.
slipslip said:
Though it's unrelated to this update, when I first got this phone last year I had the same problem with the battery. What fixed it was manually recalibrating the battery. If i remember the steps correctly it was something like: Let phone fully discharge, plug it in and charge it with the power off for about 8 hours, power it on and keep it on the charger for at least another hour.
I updated my phone to Nougat yesterday and manually updated to the same update you're on. I haven't noticed that black and white issue with the lock screen and, if anything, the battery life seems better than on marshmallow. Hopefully battery recalibration helps out. A factory reset may not be a bad idea as well, especially if it wouldn't be a big inconvenience.
Click to expand...
Click to collapse
The phone charges fully in under 2 hours, thanks to turbo charging. Don't you think 8 hours are way too much? The black and white issue is being faced by other users too-
https://forum.xda-developers.com/mo...dian-users-t3384049/post70787901#post70787901

billubakra said:
The phone charges fully in under 2 hours, thanks to turbo charging. Don't you think 8 hours are way too much?
https://forum.xda-developers.com/mo...dian-users-t3384049/post70787901#post70787901
Click to expand...
Click to collapse
No. The whole point is that the battery percentage is inaccurate. Here's a guide for you:
https://forum.xda-developers.com/android/general/guide-how-to-callibrate-battery-device-t3308554
When I followed this process I let it charge overnight before turning it back on. I also didn't use the turbo charging charger that came with it, but instead a 5 port Anker usb charger. Perhaps I wasted time, but it worked.

slipslip said:
No. The whole point is that the battery percentage is inaccurate. Here's a guide for you:
https://forum.xda-developers.com/android/general/guide-how-to-callibrate-battery-device-t3308554
When I followed this process I let it charge overnight before turning it back on. I also didn't use the turbo charging charger that came with it, but instead a 5 port Anker usb charger. Perhaps I wasted time, but it worked.
Click to expand...
Click to collapse
Thanks. Will try the same.
That second photo of S6 looks scarier for a phone with non-removable batteries. Is that the case with most of the phones with non-removable batteries?