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Battery prob is now worse!

I'm rooted first of all.
Well, wifi, all GPS, and bluetooth off.
my battery was okay, it lasted for a day mostly. and I think about 2 days ago, the battery suddenly getting worse. Everything remains same. I haven't changed any option, but the bettry is suddenly worse.
I don't use my phone that much. like I got a phone call yesterday and today? no texting, no internet, no app uses.
I charged my battery full(til 11am or til noon), then it dies before 5pm.
(Today I charged my phone til 9:40am, got only one single phone call lasted 1-2mins, and my battery is already 47%.)
It's just terrible! Anyone has same prob????
I'm in California BTW.

are you rooted?
what rom/kernel?

squeakyl said:
are you rooted?
what rom/kernel?
Click to expand...
Click to collapse
I'm rooted and I think it's stock rom.
I just followed the manual perm root process.
It's weird because under same conditions, battery got totally worse than before. It lasted at least for a day, but now, it lasts only 4-5 hrs with same amount of usage under same conditions.

ever figure this out?

Just rooting will not change anything to your battery life. You need to install a rom or a different kernel in order for it to change anything.

Mine too has gotten worse in the last week. I am not rooted. At this point my battery is draining roughly 25% per hour with little or no use. Spare parts shows the most usage on my phone is 0. I have tried getting rid of weather bug, Pandora and sirius. I tried looking for something to explain exactly why 0 takes up 10x more battery than Android system itself and I have came to the conclusion that I am lost. Any direction to the correct forum topic would be appreciated.
Sent from my ADR6400L using XDA App

jimsteam321 said:
Mine too has gotten worse in the last week. I am not rooted. At this point my battery is draining roughly 25% per hour with little or no use. Spare parts shows the most usage on my phone is 0. I have tried getting rid of weather bug, Pandora and sirius. I tried looking for something to explain exactly why 0 takes up 10x more battery than Android system itself and I have came to the conclusion that I am lost. Any direction to the correct forum topic would be appreciated.
Click to expand...
Click to collapse
Have you tried the "Blockbuster" mod?
1) open the Blockbuster Application, it should ask you to update.
2) once the update has finished open the application back up and
3) navigate to Menu>Settings> "Disable Movie Updates"
Users have reported better battery life.

Thanks for the reply. Yes I have updated and disabled the Blockbuster app. Better yet even I just rebooted my phone and it drained 12% on the battery. How is that possible. I am using my stock battery now and not the extended, so the % would be different with the stock compared to my extended but really I don't think it should use 12% on a reboot.
Sent from my ADR6400L using XDA App

Do you currently have 4g?
Sent from my ADR6400L using XDA App

Yes I do and I have been using LTE off/on for last 2 days .
Sent from my ADR6400L using XDA App

I also just logged of FB chat about 2 hours ago and Google talk. 2 hours later still at 52% maybe I am on to something.
Sent from my ADR6400L using XDA App

I guess you and I are on the same page! I charged mine til 9:40 am and went to work yesterday. I got only one phone call that lasted 1-2mins. The battery was already 52%. All GPS was off, bluetooth off, Wifi off, everything off except 4G. I sent a text and received a text, and the battery drained to 46%. After a few mins with no use of the phone, the battery warning sound played. So I had to charge my phone at that point. It is just totally weird. Under same condition and same usage of the phone, the battery lasted for a day at least. (4G was on at the point.) I don't know what cause this problem. Anyways, I just unrooted mine and got a software update via OTA. I don't know if this will fix the problem. Any luck to you yet?

I am going to charge tonight and try current settings tomorrow and see how long battery last. It is to the point if I have to turn all this stuff off, doesn't it defeat the purpose of having a smartphone?
Sent from my ADR6400L using XDA App

Try ZD Box
Try ZD Box, and use its task killer to stop any programs your not using right then. Pandora is another app that loves to stay on and chew at your battery...

My phone just started doing this as well. I've been using the TBolt for a couple of weeks now.
Just yesterday my battery life took a serious nose dive. I've adjusted all the settings I can and the battery is dropping like a drunk girl's panties...
I'm having to charge it all the time now just to keep it from giving me the low battery warning.

Ok well here it goes . Off charger for 30 mins 7 text ,this post and a restart and down 10% already. Wtf
Sent from my ADR6400L using XDA App

jimsteam321 said:
Thanks for the reply. Yes I have updated and disabled the Blockbuster app. Better yet even I just rebooted my phone and it drained 12% on the battery. How is that possible. I am using my stock battery now and not the extended, so the % would be different with the stock compared to my extended but really I don't think it should use 12% on a reboot.
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
That's about what mine took on average to reboot. 10-12%.

I'm at 72% after 11 hours of idle usage and that's on the 2750mah extended battery. That would put me at 46% after 12 hours having not touched the phone once. I literally fell asleep as I took it off the charger...
Something is jacked up and I don't know what.
Rooted, Virus ROM B3, 1.8G kernel (forget which).

I've gone to Imoseyon's Sense lean kernel, special edition.
We'll see how that goes...?

Wanted to report back as I think the culprit may be the wireless tether app.
I turned GPS, WiFi and all my sync's back on and the phone is back to giving me decent battery life.
I did some changes with the tether app and I'll report back to see if my suspicions are correct.

[Q] Has anyone noticed battery life took a nosedive with the Gingerbread update?

Having waited months for this update, I was just as excited as many to put this update on. Unfortunately, even though it has fixed many issues it created a new one for me: battery life, surprisingly.
The battery life on my phone is now back to what it was at out of the package with all of the bloat and Froyo. All I did on my Froyo was root it, freeze all of the bloatware, and unroot it. The battery would go the entire day and then some with moderate use. The phone became very stable.
Fastforward to yesterday- the phone rebooted, so I had enough and I put Gingerbread on. Everything was fine yesterday, and battery consumption was great with all the radios on. After I woke up this morning from charging (USB), the phone felt hot. Battery Monitor was saying it was at about 101F (normally around 96F). I unplugged, and immediately the consumption was at about 250mA. Throughout the past few hours, it has gone from 150mA to 600mA consumption. I did a factory reset, and it didn't help. Nothing has worked yet to get the power consumption under control today. The primary things running are (not surprisingly) the bloat. Telenav I noticed was constantly noted as "Restarting". Appmarket gets force-killed, and it opens back up a split second later.
It might possibly be the data radio, as JuiceDefender can't even shut it off.
Has anyone found their battery consumption got worse with the GB update, and not better? Short of flashing a bloat-free rom on it, has anyone found a solution?

When an app constantly closes and goes into a endless restart cycle is what kills the battery the most. It also makes the phone hot. I had this happen with the NFL app a few updates ago.
Sent from my HTC Sensation 4G using XDA Premium App

After I updated yesterday my battery did also die fairly fast. I did a hard reset and now it seems the same as froyo. But I was one the lucky folks with almost no problems so I never rooted. From my understanding gingerbread suppost increases battery life mines about the same now
Sent from my LG-P999 using XDA App

Guys you have to keep in mind that this is not the official release. LG either leaked this build out by accident or on purpose to quiet down the hungry stomach's that wanted a gingerbread build. Lets just cross our fingers and graciously hope that a more fresh and tasty build will be released.
For now just try and enjoy your phone. If you are having random reboots that are a little too often then try completely wiping your phone and then literally wait 10 minutes for the software to settle down, once settled then reboot and enjoy.
Sent from my LG-P999 using XDA Premium App

I was just about to make this thread. I've got from 100% to 38% in about 3.5 hours and it wasn't particularly heavy usage.

omnibot80 said:
I was just about to make this thread. I've got from 100% to 38% in about 3.5 hours and it wasn't particularly heavy usage.
Click to expand...
Click to collapse
That sounds about right. There has to be a broken sensor or something improperly calibrated. It isn't warm anymore, but it is just gulping down the power right now faster than any device I've ever had. I have a feeling it may have thought it was fully charged. It was perfectly fine on the original charge left over from Froyo consuming only about 30-60mA. Overnight charge on Gingerbread? Getting this massive consumption. It was done on USB. Once it dies in the next few minutes, I'll do a full wall charge and hopefully it gets more than a few minutes.

You guys using the bloated version or the EB release with bloat removed?

My battery life has been fairly good so far.
Sent from my LG-P999 using XDA App

my battery is incredibly good after the update today after 4 hours of usage my battery had only went down 3%

cgonz92 said:
my battery is incredibly good after the update today after 4 hours of usage my battery had only went down 3%
Click to expand...
Click to collapse
Have you charged it since you ran the update?

I just plugged my phone in about 30 minutes ago and it went from 20% battery to 80% in 30 minutes. That seems very fast for the G2x. I really think the culprit here is it isn't charging properly. I did a factory reset already, and it didn't help.

DroidNaN said:
Have you charged it since you ran the update?
Click to expand...
Click to collapse
yea ive charged it

My battery life got so much better ......its like a whole new phone

My phone is on for 18hrs now and I still have 15%. Am draining this battery because I calibtrated it.
Sent from my Calculator with Android.

I just got tired of disabling all the features that made my phone a smartphone, using juice defender...etc I decided to order an extended battery for $10 shipped off of eBay, 3500ma , I suggest u do the same.
Sent from my LG-P999 using XDA App

One thing I have noticed is my Camera is apparently responsible for about 20-30% of the power consumption even though I've forced quit it and rebooted.

I am going on 14 hours now and am at 64%... light use, wifi on half the time, screen on for little over an hour. I have HORRIBLE reception at my house in ohio, the damn thing is usually just trying to hold 1 or 0 bars where i very frequently have dropped calls or text messages that go out slow or come in in packages because it finally found a signal again (aka my phone loves to spend juice looking for a signal)... I would say its pretty good and i used the hell out of it yesterday and killed it in like 6 hours so this is my second charge...

Luckily I'm in the second Category. I was on ultimate Rom and loved it but I just wanted to change it up so I rolled back to froyo. Then did the update, reflashed clockwork and charged it to 100%, booted into clockwork, deleted the battery stats, boot it up, pulled the charger and I'm on 15 hours now and still have about 20% left. I'd say they did something positive. I still need to freeze the bloat however. I'll worry about that later when we get a CM7 or EB build based on this rom that is stable.

After I turned off GPS on the camera and killed it, my battery life skyrocketed. Even though I was killing the camera, it wasn't helping. I had to actually turn off the GPS before exiting. I'm not sure if its coincidence, but I left it unplugged overnight and it used almost no battery.

Just for a bit of proof.. I took these after the update, in the one with the estimate you can see it only expected me to get 5 more hours of battery life based on the history, but it's going to last a lot longer I think.
All I did was wipe battery stats, charge to 100%, wipe again, waited 30 minutes, wiped one more time then unplugged and let it go. that was 17 hours ago.
I'm anal like that, I really did wipe the battery stats three times and let it charge to full again after wiping just to make sure it was maxed out. I'm a noob still so not sure exactly how the battery stats reporting works.
Oh yeah, this includes 1.5 hours of Order and Chaos. Streaming music from Google music for two hours while driving across town, 45 minutes of GPS while locating a business I've wanted to visit and about 5 chapters of I, Robot in google books.

Battery 100% charged?

So I read that a ton of ppl has issues hitting 100% battery charge, I'm also seem to be having the issue till I got and played Plants vs Zombies...after like 1 hour playing I was about to turn on the alarm and hit the bed and I just noticed my battery level, 100%....so I thought that it was an error and I locked the phone just to see on the lock screen "charged"....btw, when I started playing the battery was at around 92% and I've never seen 100% before on my NS.
How many ppl is able to get their phones to fully charge to 100%? and, does any of u installed or did anything in particular to fix the issue?

Hm, only had mine 2 weeks and have yet to get a 100. My epic would but it was a faux 100 if anything as it. Would drop down to around 98-96 immediately.
Sent from my Nexus S 4G using Tapatalk

fenrry said:
So I read that a ton of ppl has issues hitting 100% battery charge, I'm also seem to be having the issue till I got and played Plants vs Zombies...after like 1 hour playing I was about to turn on the alarm and hit the bed and I just noticed my battery level, 100%....so I thought that it was an error and I locked the phone just to see on the lock screen "charged"....btw, when I started playing the battery was at around 92% and I've never seen 100% before on my NS.
How many ppl is able to get their phones to fully charge to 100%? and, does any of u installed or did anything in particular to fix the issue?
Click to expand...
Click to collapse
Only way to hit 100% is to use an external battery charger.
Sent from my SCH-I800

https://market.android.com/details?id=com.elondra.nexusscharger&feature=search_result
you can use that if u really want too get too 100% i used for a few weeks then just stopped caring. Its just the way samsung programmed it to pro long the overall life of the battery.

Yeah, mine caps at 95% normally. Might have a look at that program. How much shorter would battery life be if we let it charge to 100%?

If you leave the screen on (by any means, whether you were playing game, which requires you to have the screen on, or change the setting to have screen always on), it will charge to 100%.

will the battery life shorter with this trick or using that app to force to charging completely ?

Its not an issue. Samsung designed it that way. Its to help keep the battery healthy and extend its life.
Sent from my Nexus S 4G using xda premium

I honestly don't see it being noticeably shorter life span. We keep phones for a max of 2 years now days. I rather have a full battery now then it last an extra few months. Battery's are cheap so we dont need them to last forever .

Well, I have used the phone while connected to the charger but never passed 96%, only after playing PvsZ I got the 100% and then the number went down till 96% and stayed that way after I closed the game.

fenrry said:
Well, I have used the phone while connected to the charger but never passed 96%, only after playing PvsZ I got the 100% and then the number went down till 96% and stayed that way after I closed the game.
Click to expand...
Click to collapse
ya the only time ive ever seen a phone stick on 100% for longer then 10 minutes is using SBC kernels

jietzer said:
ya the only time ive ever seen a phone stick on 100% for longer then 10 minutes is using SBC kernels
Click to expand...
Click to collapse
I'm running Formels MIUI, it comes with Pete#5....still....gonna test again with PvsZ in a bit, rt now the phone has been steady at 96% for the past 2 hours....man gotta sleep soon also...
***Update: PvsZ does work to go pass the 96%, I hit another 100%....

How many times is this very topic going to be discussed? And with all the info on xda, why is there so much false/incorrect information in this thread?
Sent from my Nexus S 4G via XDA Premium

[Q] Battery Problens!!

Ive had my htc one x for maybe 5-6 months which is almost the longest ive ever been on one phone and i love(d) it, but its always been doing something very strange and aggravating that seems to be getting worse. Battery drain has always been a problem for me with this phone but ehh i can deal with it, but once my phone gets down to about 14% which is does often because of the draining it starts acting real funny with its power and sometimes goes from 14 down to 5 in an instant literally out of no where and as soon as i plug up itll go right back to 13, or itll shut down entirely at 14% but i can just cut it back on, or itll shut down in the middle of me doing something and i have to charge it for about 5-10 minutes before itll even come back on. The latter happened last night btw. No matter what combination of roms/kernels i try this always seems to be a problem. I really cant deal with this anymore and its to the point where i wanna throw my phone into a wall and just buy another one, which im seriously thinking about doing at this point. If such thing has happened to anyone before or you have insight on this can you please help before i just give up hope completely.

What you have described is normal for our device. Remember that the battery percentage is just an estimate of your actual charge. In addition, you find your phone shutting off around the lower percentages as a result of the device attempting to prevent damage to the battery. That is what the HOXl was designed to do.
Sent from my One X using XDA Premium 4 mobile app

KungFuCracka94 said:
What you have described is normal for our device. Remember that the battery percentage is just an estimate of your actual charge. In addition, you find your phone shutting off around the lower percentages as a result of the device attempting to prevent damage to the battery. That is what the HOXl was designed to do.
Sent from my One X using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Last night when it did it, as it has before, i was still on 21%.... thats not normal. And this isnt my first android nor first htc, never happened before. Even on my aunts old one s it didnt happen

Do you allow full charges after these "forced shutdowns" occur? This should cause your battery to recalibrate.
Sent from my One X using XDA Premium 4 mobile app

NexusS4gFreak said:
Last night when it did it, as it has before, i was still on 21%.... thats not normal. And this isnt my first android nor first htc, never happened before. Even on my aunts old one s it didnt happen
Click to expand...
Click to collapse
The battery behavior on this phone has been interesting. I have the battery last over two weeks on airplane mode and I've had the battery last just a couple of hours with just a stock setup. There are so many factors that play into this. I work in an area with very little to no signal reception and my battery life goes crazy and the phone can get really hot while I'm there so I've seen the best and worst.
What I do to counteract this bad behavior:
1. Charge prior to 40% (I've had the phone go from 40% to zero instantly before)
2. Consider your signal reception and either try out different radios or use airplane mode to reduce erratic battery drain
3. Install a 3rd party app like batterycalibration (https://play.google.com/store/apps/details?id=com.nema.batterycalibration&hl=en) and use that when things get hairy (I calibrate every two weeks or so and that does the trick for me.
My phone has been like this since I pulled it out of the box. With a little management, it is just fine. You have seen it before but I'll say it again, you have to get through a few charge cycles when flashing a new Rom to get back to normal.
Hope this helps. It works for me and I work in a cell phone reception hell.

NexusS4gFreak said:
Ive had my htc one x for maybe 5-6 months which is almost the longest ive ever been on one phone and i love(d) it, but its always been doing something very strange and aggravating that seems to be getting worse. Battery drain has always been a problem for me with this phone but ehh i can deal with it, but once my phone gets down to about 14% which is does often because of the draining it starts acting real funny with its power and sometimes goes from 14 down to 5 in an instant literally out of no where and as soon as i plug up itll go right back to 13, or itll shut down entirely at 14% but i can just cut it back on, or itll shut down in the middle of me doing something and i have to charge it for about 5-10 minutes before itll even come back on. The latter happened last night btw. No matter what combination of roms/kernels i try this always seems to be a problem. I really cant deal with this anymore and its to the point where i wanna throw my phone into a wall and just buy another one, which im seriously thinking about doing at this point. If such thing has happened to anyone before or you have insight on this can you please help before i just give up hope completely.
Click to expand...
Click to collapse
When a new ROM or kernel is flashed you need to let battery settle for at least 48hrs before you get super worried about battery. If possible during that time let device fully discharge then charge up to 100. Please use a battery monitoring app and then see what's causing the issues. With proper config hoxl will get good battery life. There is always the chance its hardware issue but doubtful as battery prolly would of completely failed by now. Also check your screen brightness settings. Hope this helps
Senseless Power Unlocked

For example
Senseless Power Unlocked

Madcat8686 said:
The battery behavior on this phone has been interesting. I have the battery last over two weeks on airplane mode and I've had the battery last just a couple of hours with just a stock setup. There are so many factors that play into this. I work in an area with very little to no signal reception and my battery life goes crazy and the phone can get really hot while I'm there so I've seen the best and worst.
What I do to counteract this bad behavior:
1. Charge prior to 40% (I've had the phone go from 40% to zero instantly before)
2. Consider your signal reception and either try out different radios or use airplane mode to reduce erratic battery drain
3. Install a 3rd party app like batterycalibration (https://play.google.com/store/apps/details?id=com.nema.batterycalibration&hl=en) and use that when things get hairy (I calibrate every two weeks or so and that does the trick for me.
My phone has been like this since I pulled it out of the box. With a little management, it is just fine. You have seen it before but I'll say it again, you have to get through a few charge cycles when flashing a new Rom to get back to normal.
Hope this helps. It works for me and I work in a cell phone reception hell.
Click to expand...
Click to collapse
Ive done all three methods youve mentioned before and still same thing. Also im on 3/4 bars with lte 90% of the time so no reception issues here. And with my current setup ive been running it for about 2 weeks.

DESERT.TECH said:
When a new ROM or kernel is flashed you need to let battery settle for at least 48hrs before you get super worried about battery. If possible during that time let device fully discharge then charge up to 100. Please use a battery monitoring app and then see what's causing the issues. With proper config hoxl will get good battery life. There is always the chance its hardware issue but doubtful as battery prolly would of completely failed by now. Also check your screen brightness settings. Hope this helps
Senseless Power Unlocked
Click to expand...
Click to collapse
Ive always let the rom settle in and i constantly maintain the brightness on around mid level (mirror screen protector so i cant go too low) but its not just one rom or a few, its with every rom i flash ad that consists of most roms available for this device

The battery behaviour you described is completely normal if you understand how a battery of this type works, and if you understand how the software (especially the display of battery percentage) works in conjunction with it.
Sent from my Evita

timmaaa said:
The battery behaviour you described is completely normal if you understand how a battery of this type works, and if you understand how the software (especially the display of battery percentage) works in conjunction with it.
Sent from my Evita
Click to expand...
Click to collapse
So youre telling me having the phone get to 22% and instantly drop to zero and power down is normal? Makes no sense at all. Also i cant get it to charge too 100% for anything. So if theres no fix to this, anybody want a one x with a troublesome battery?

What I'm saying is the battery percentage displayed by the software is never exact, it's only an estimate based on the voltage level of your battery. Your battery sounds like its long term life (capacity) has been decreased over time and possibly bad treatment (allowing the device to discharge too much too many times).
Sent from my Evita

NexusS4gFreak said:
So youre telling me having the phone get to 22% and instantly drop to zero and power down is normal? Makes no sense at all.
Click to expand...
Click to collapse
Depends on what you define as "normal". Such behavior is certainly not unheard of (although you particular collection of symptoms may point to a more serious issue, which I'll get to later). Couple things you have to remember: the battery meter is far from accurate. Being off by 10% or more is not unusual (completely normal). So jumping from 5 to 13% as you mentioned is not out of the question. The battery voltage is not actually jumping around, just the % battery number that the phone is assigning to various voltage readings. Reading errors happen, and if a jump is noticed, its just the meter correcting itself.
Which brings us to the other point that should be kept in mind: the battery % is not a "real" measurement. Its just a number assigned to various voltages to give the average person a sense of how much battery is left. Its a completely fabricated and artificial measure that just gives some relative sense of when a user should charge their battery. Phone makers just decided to use a system that average people would understand, like the fuel gauge on a car. Zero doesn't really mean zero (or anywhere close), but reporting in voltages would make no sense for most folks. Also, as we all well know, just because (for example) it took you 12 hours to drain the phone to 50%, does not necessarily mean the phone will last another 12 hours to drain the remaining 50%. It all depends on what you are doing with the phone during that time. Which leaves the question: What does the % battery really mean? Really, not a heck of a lot.
On the other hand, the battery failing to charge to 100% is troublesome, as is the apparent frequency of the meter drops and the fact that the issue remains after various ROM flashes. Leads me to believe there may be some hardware issue going on.
The short answer: IMO while some of the individual symptoms are not unusual, the seeming frequency (you haven't exactly quantified this, but it seems relative frequent just based on your descriptions) may suggest a larger issue, but its not certain.

Thanks it explained a lot but it happened again today, went to the store with ~36% on the meter and walked out, haven't touched it at all, phone was completely dead. Tried to charge and it went to 6% and stopped charging, all signs showed it was charging but it was stuck on 6. Then it started climbing again and reached about 16% and actually started losing charge while on the charger. Switched over to my portable battery charger i just got and it held the charge at about 5% for ~30 minutes, which is what it was when i plugged it in and started to charge, then it stopped againand during the whole process the phone was getting very hot. Yea im getting a new phone :/

Oneplus One dies at 20% battery charge rate

Few days back, my phone died even if it showed that battery has about 20%. Since then, my phone dies always near 20% charge state. Before it does, screen is flickering a little bit.
But so far I've observed, my phone runs about 1 hour and it still shows 100%. After that, it starts to drop. I've tried some calibration, but it never worked.
Do you know, how I can repair this or it's a subject for official repair? I would've tried to buy new batteries, but since it's OPO where batteries cannot be changed, or can be, but it brakes warranty so...
Thank you guys, appreciated.

How old is your OPO? What ROM did you use? Any custom kernel / details etc?
My OPO works fine on CM11 nightlies, stock kernel but rooted.

It's max 5 months old and I've never experienced such an issue. Down you have screenshot. I'm running stock ROM and everything. Hope it will help

defect device
korynkaaa said:
It's max 5 months old and I've never experienced such an issue. Down you have screenshot. I'm running stock ROM and everything. Hope it will help
Click to expand...
Click to collapse
I think you have to send it back to 0ne+ and take your warranty claim.
greetings

Same issue Here!
korynkaaa said:
Few days back, my phone died even if it showed that battery has about 20%. Since then, my phone dies always near 20% charge state. Before it does, screen is flickering a little bit.
But so far I've observed, my phone runs about 1 hour and it still shows 100%. After that, it starts to drop. I've tried some calibration, but it never worked.
Do you know, how I can repair this or it's a subject for official repair? I would've tried to buy new batteries, but since it's OPO where batteries cannot be changed, or can be, but it brakes warranty so...
Thank you guys, appreciated.
Click to expand...
Click to collapse
I have the same issue here. Bought my One on August, running stock, suddenly since a few days ago the phone goes dead on 20% or 16%.
I hope there is a solution for this, different from "send it back".

Katra78 said:
I have the same issue here. Bought my One on August, running stock, suddenly since a few days ago the phone goes dead on 20% or 16%.
I hope there is a solution for this, different from "send it back".
Click to expand...
Click to collapse
I think you might get a faulty battery. This happened with my old galaxy note too. Changed battery and every issue is gone.

Got same issue since a few days, how to manage?
has anyone tries this https://forums.oneplus.net/threads/phone-switches-off-when-at-20-low-battery.157075/

27%
Same issue started happening with me too. Phone touched 25-27% mark and goes off suddenly. It was fine from last 3 weeks and from last 2 days, it is giving me this issue. I will try doing factory reset. Hope it works.
PS: I am on stock 38R without root.

has factory reset worked?

Reset doesn't work. It's software problem. A lot people having same issue.
Mine even worst. switched off about 35%. and lasted about 12 hours stuck on 100%.
I've done flash to stock 33R, 38R. clear everything. same. doesn't help.

Open up the phone dialer: type *#*#4636#*#*
This should bring you up to a "secret" settings page. Click on battery information. There you can check battery health!

Replied to a similar thread. I experienced the same issue where it stays at 100% for hours and died around 17%. Happened twice. What I did was turned off the phone and charged it full. Turned it on, waited a couple of minutes or so before unplugging. Had to make sure all apps in the background are up. So far it it fixed the problem for me.
Hope that helps.
Sent from my OnePlus One®

I've tried out an apps call "Easy Battery Calibration" can be downloaded from playstore. for rooted devices only.
After using it. it seems okay right now. 100% no longer holds up few hours. drop 2% about 1.5 hours usage.
Looks neat. still waiting for the battery depleting .

reinerlee said:
I've tried out an apps call "Easy Battery Calibration" can be downloaded from playstore. for rooted devices only.
After using it. it seems okay right now. 100% no longer holds up few hours. drop 2% about 1.5 hours usage.
Looks neat. still waiting for the battery depleting .
Click to expand...
Click to collapse
Sorry, just got down to about 37%. it shuts off.

minicoop7 said:
Replied to a similar thread. I experienced the same issue where it stays at 100% for hours and died around 17%. Happened twice. What I did was turned off the phone and charged it full. Turned it on, waited a couple of minutes or so before unplugging. Had to make sure all apps in the background are up. So far it it fixed the problem for me.
Hope that helps.
Sent from my OnePlus One®
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Click to collapse
This works. But do i have to do that each time for charging?

lp4u said:
This works. But do i have to do that each time for charging?
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Click to collapse
Not really. Only did it when it died at17%. There may be some app updates that causes it. In my case I think the culprit is Gsam. Cause when it updated, it messed up the calibration. But then again, it could've been other apps that updated at that time too ☺
Sent from my OnePlus One®

I faced this previously. Phone died around 40%. Install battery calibration app from play store. Calibrated my batt and all ok till date. Rooted and on fk kernel back then.

here's the fix. no need to install additional app. no root needed.
NOTE: do this at night, just before you decide to go to bed.
1. let the device turns off itself. no matter at which battery level.
2. while the device is powered off, charge it for at least 6 hours. do not interrupt the charging. do not turn on the phone. and do use the original charger and cable.
3. once the phone is charged for at least 6 hours. turn it on and use it as per your usual way.
4. repeat step 1 to 3 for another 2 times. then the phone's battery calibration will be fixed.

I see you are on 38R .. Have you updated to 44?
Sent from my Nexus 4 using XDA Free mobile app

Working. Thabks.
Wondering what caused this nevertheless.
Another issue is that never before when the battery was enpty that i saw that screen with chinese words. Is that new?