[Q] ultra fast battery drain - Galaxy Tab 10.1 General

i'm losing almost two percent battery per minute on my tab, what the heck?
Its so fast i'll have to keep this post brief since i'm posting from it.
Already checked the battey break down, screen is vastly dominant but its been off.

Power cycle? How long has it been happening? What firmware are you using, stock or rom?

GorillaPimp said:
Power cycle? How long has it been happening? What firmware are you using, stock or rom?
Click to expand...
Click to collapse
Not sure what you mean by powe cycle, but i just took it off the charger after a 6 hour charge and the problem persists
android version is 3.1,
2.6.36.4 cyanogenmod+root @pershoot-ubuntu1 for the firmware
Rom is starburst.hmj37.uekme p7510ukeme
My battery has gone from 100 to 70 since i started typing this

By powercycle I mean have you turned the Tablet totally off and then back on again?
Have you checked the ROM's thread in the Dev forum for people with the same issue?
How long has it been since you made any changes to your tablet? I'm talking about updating the ROM, installing the ROM, changing kernels, etc.
Unless your battery or some other component in your tablet has gone bad the problem is probably due to something in the ROM or kernel you're using. If a reboot(powercycle) does not fix it your first stop should be the Starburst thread or wherever you got your ROM from. If it's not a hardware failure you're pretty much guaranteed to not be the only person having the problem.

Is there a known issue on the rom with respect to battery-calibration like in the original Samsung 3.1/3.2 ROMs? There is a thread somewhere here how to calibrate your battery-reading, just search for it.
May not be what is happening to you, maybe it is. Is the percieved drain constant up 'till the end'?

more data;
powercycling didn't do anything, and neither did resetting battery statistics either
the reports of starburst rom having battery draining properties are....mixed..
most seemed to be solve by uninstalling a certain app (all the apps suggested are ones i do not own), and it seems all these cases of battery drain are FAR less severe than mine

Related

Multiple problems after installing 1.48

I don't even know why did I update, 1.43 worked fine for me. After I installed 1.48, I've noticed several problems:
- battery drains a lot faster
- problem with the auto lock, or lock with "end" button - after I want to use the device again, it won't turn on all the time, buttons glow, but nothing happens
- few times phone didn't wanna dial some people when I enter their contact and try to dial their numbers
Anyone experiencing similar issues? Both versions of ROM (1.43 and 1.48 are WWE East Europe)
can't be that I am the only one facing these problems in 1.48
hehehe seems u are tryed to flash 1.48 a second time?
I seem to be having a problem at the moment with 1.48 where sometimes (usually) if I plug in my phone to the computer it freezes up. Only way to solve it is to take the battery out.
Don't know if it's to do with 1.48 or some other program I've installed. Doesn't seem to do it all the time but it really p!ssing me off. That battery cover isn't easy to get on and off. Why on earth didn't they put a small reset button somewhere like on my trusty Trinity.
xardus said:
hehehe seems u are tryed to flash 1.48 a second time?
Click to expand...
Click to collapse
I reverted to 1.43 WWE East Europe, downloaded from HTCPedia, but seems like battery is again draining a lot faster than on my stock ROM. I don't know what whas the catch in my stock ROM, the one I got when I bought the phone, but seems like battery was far best on it.
It was 1.43 WWE East Europe as well btw, I have no clues..
the problem with battery is with htc sense. You can notice this disabling it for a day and using the Windows default. It is a huge diference
Im using 1.48 official and not get any special problem....
Yes, sometimes after reboot my device I not get lock of screen. But if to do long press of OFF button and choise LOCK then all works fine. Also, I have problem with Skype, but it not special problem, I think.
Battery works about 1-2 day with my style of using device. It mean 1-2 hour of speech, WiFi when available, Inernet browesing and checking mail every 10min. I think, this normal.
With 1.48 I have more faster connect to WiFi, more stable connect in GSM and more natural sound.
May be, I will reflash my device to 1.43, but now Im happy from 1.48.
i have the same battery drain with 1.48,
back to 1.43
I have similar problems. 1.43 was working great for me and I thought I could get a little more out of my HD2 with 1.48. Turns out not. Battery life has decreased, the phone crashes every now and then (as opposed to never with 1.43) and the camera takes horrid pictures with the flash. I am thinking of reverting back to 1.43. I am using the Western Europe ROM.
I will now wait for official HTC roms before installing anything.
Sure you can disable Sense and have huge battery life but that sort of defeats the purpose of the HD2 in my opinion.
Bear in mind that WM seems to take a little time to 'calibrate' the battery with each new ROM. Various threads I have read suggest anything from 2-3, up to 10 or more battery drain/recharge cycles before you get a true reading.
Ditching a new ROM after only a day or two may therefore be a little previous...
meegulthwarp said:
I have similar problems. 1.43 was working great for me and I thought I could get a little more out of my HD2 with 1.48. Turns out not. Battery life has decreased, the phone crashes every now and then (as opposed to never with 1.43) and the camera takes horrid pictures with the flash. I am thinking of reverting back to 1.43. I am using the Western Europe ROM.
I will now wait for official HTC roms before installing anything.
Sure you can disable Sense and have huge battery life but that sort of defeats the purpose of the HD2 in my opinion.
Click to expand...
Click to collapse
Strange with 1.48 I can take really great photos which I couldn't with 1.43. My phone since I have flashed it to 1.48 never hang/crash but battery drains very fast.
Gustopher said:
Bear in mind that WM seems to take a little time to 'calibrate' the battery with each new ROM. Various threads I have read suggest anything from 2-3, up to 10 or more battery drain/recharge cycles before you get a true reading.
Ditching a new ROM after only a day or two may therefore be a little previous...
Click to expand...
Click to collapse
I didn't know this. Can anyone more confirm on this? Too bad I already went back to 1.43, I will see what happens
Gustopher said:
Bear in mind that WM seems to take a little time to 'calibrate' the battery with each new ROM. Various threads I have read suggest anything from 2-3, up to 10 or more battery drain/recharge cycles before you get a true reading.
Ditching a new ROM after only a day or two may therefore be a little previous...
Click to expand...
Click to collapse
This is hard to believe...
Gustopher said:
Bear in mind that WM seems to take a little time to 'calibrate' the battery with each new ROM. Various threads I have read suggest anything from 2-3, up to 10 or more battery drain/recharge cycles before you get a true reading.
Ditching a new ROM after only a day or two may therefore be a little previous...
Click to expand...
Click to collapse
I had also read something like that regarding the battery and new roms.
example for Energy ROMs
BATTERY SAVING TIPS
The first few days
• There is nothing special about this ROM to make it use more power than other ROMs except that it is tweaked for performance over battery life. After things have settled down, you should get a couple of days usage out of a charge.
• Immediately after flashing, you will probably observe very poor battery performance. This is due to the charging circuit having to reset itself.
• The battery meter will not settle down and give accurate readings for a few battery cycles. Give it a few days.
• For the first few battery charging cycles, try to charge to 100% with phone off and then allow battery to drain down quite a bit before recharging. This is so the meter will calculate drain well.
Click to expand...
Click to collapse
Battery drain & other issues
I am not having iszues with 1.48. battery drain.
I heard this so often in the HD forum but never experienced it, and I was flashing Miri's roms every second day.
If people mean their battery runs down very quickly after a flash, well it takes a lot of power to reboot, and then you are probably going to run the device for a while to get all your settings back. Well this I have experienced, but next charge, no problems. I flashed yesterday and recharged overnight and after a day of use my phone had 50% left. No issues yet either.
Xaddict said:
I am not having iszues with 1.48. battery drain.
I heard this so often in the HD forum but never experienced it, and I was flashing Miri's roms every second day.
If people mean their battery runs down very quickly after a flash, well it takes a lot of power to reboot, and then you are probably going to run the device for a while to get all your settings back. Well this I have experienced, but next charge, no problems. I flashed yesterday and recharged overnight and after a day of use my phone had 50% left. No issues yet either.
Click to expand...
Click to collapse
Was about to agree with you when i noticed something today: i usually charge my phone overnight (it doesn.t matter how much battery i have i just do it to be sure) but few nights i left it without a charge and notice 3% to 4% battery drain overnight (1.43 rom). After update(1.48) i left it overnight and noticed 11-12% battery drain(even though i left my phone for a few days to get used to the new rom). Don.t want to jump to conclusions yet but there could be something about battery drain in the new ROM.

I hate Froyo!

Thought the title would get your attention.
After upgrading to Froyo, I have many issues, two of which I'll cover here in hope that someone can resolve them.
First issue is battery life. Absolutely horrible after upgrading. Thought it would be the opposite. Can someone please provide some resolution to this issue? I've disabled a number of things said to resolve this problem but none have worked.
The second issue is the accelerometer after upgrading. Most screens end up in landscape view and switching back to portrait is difficult. I have tried to calibrate it but that didn't work. Don't like the huge delay or failed attempt to switch between both on this version. Calibration does not work.
Any help is appreciated...
pookieguy said:
Thought the title would get your attention.
After upgrading to Froyo, I have many issues, two of which I'll cover here in hope that someone can resolve them.
First issue is battery life. Absolutely horrible after upgrading. Thought it would be the opposite. Can someone please provide some resolution to this issue? I've disabled a number of things said to resolve this problem but none have worked.
The second issue is the accelerometer after upgrading. Most screens end up in landscape view and switching back to portrait is difficult. I have tried to calibrate it but that didn't work. Don't like the huge delay or failed attempt to switch between both on this version. Calibration does not work.
Any help is appreciated...
Click to expand...
Click to collapse
buy a new battery and a good charger
menu>settings> display> uncheck Auto-rotate screen
screen
Why would I want to uncheck that option? I want it to auto rotate but want it to happen quicker than it has after upgrading.
battery..
In addition, the battery is obviously not the problem here. This started after upgrading to Froyo.
Were you using a custom ROM with 2.1?
Are you using a custom ROM with 2.2?
As far as I know, the stock ROM with 2.1 didn't have great battery life either (thought I'm not sure, I rooted my phone the day I got it ). So if you're using a stock ROM with 2.2, you could have the same issue.
Also, if you are rooted, try using SetCPU. Even with the default kernel you can use it to underclock your phone when the screen's off and save a lot of battery.
pookieguy said:
Thought the title would get your attention.
After upgrading to Froyo, I have many issues, two of which I'll cover here in hope that someone can resolve them.
First issue is battery life. Absolutely horrible after upgrading. Thought it would be the opposite. Can someone please provide some resolution to this issue? I've disabled a number of things said to resolve this problem but none have worked.
The second issue is the accelerometer after upgrading. Most screens end up in landscape view and switching back to portrait is difficult. I have tried to calibrate it but that didn't work. Don't like the huge delay or failed attempt to switch between both on this version. Calibration does not work.
Any help is appreciated...
Click to expand...
Click to collapse
You hate Froyo then please return your EVO to sprint
are you running a task killer? try removing it. Have you tried any of the MANY battery life tricks? Try flashing the update.zip, could have been a messy install. you also could be suffering from useritis.
root
Thanks for the reply. No, phone has not been rooted. I simply waited for the 2.2 upgrade and can confirm both issues are a result of upgrading. You are right...the stock ROM did not have good battery life. However, after upgrading, it is much worse in comparison.
The g-sensor issue is also a huge problem. With that said, I'm looking for a fix to these two issues.
Thanks,
task killer..
tonyh703,
Yes, I'm running Advanced Task Killer which did not have a problem before. Is this an app that can cause this problem? I'll remove it if so...
You really need to do a little detective work to find out why your battery is not lasting. My battery is actually lasting noticeably longer on froyo. I was using Fresh 1.0.1 before with Netarchy's kernel and would just barely make it through the day of moderate use. Now that I have updated to Fresh 3.1.0.1, I am easily making it through the day with about the same use. Yesterday, I went 14 hours and still had 26% left when I plugged it in for the night. My usage was about 2 hours streaming last.fm, about a half hour of phone calls, about 1 1/2 hours of internet and twitter, about 45 minutes watching video's, and an hour and a half of reading with my kindle ap. To me that is pretty darn good. I have gps on, twitter syncing every half hour, and google sync on, most of my other stuff like email and such is set to manually sync. The only thing I did notice is that the first day after going to Froyo, my battery went down pretty quick, but after a day or two it settled down to the way it is now on it's own. Today I have had about the same use as yesterday so far, and have been off of the charger for 11 hours and have 76% remaining.
As to your other problem, can't say, mine is working fine.
If youve got an led flashlight type of app installed uninstall it they conflict with the HTC LED flashlight. That seems to be the most common problem with people upgrading to Froyo.
Agree on your second point. I wish there was a way to at least lock the screen to an orientation when need. The delay though is ridiculous.
I have also noticed that the delay to type sometimes is severely long causing me to retype the words a second time before they appear in the screen.
Sent from my PC36100 using XDA App
FWIW - I found a little trick on a forum somewhere that allegedly came from HTC techs...
It goes like this - first, charge your phone as normal (phone on, 8 hours)
Then, after 8 hours and the phone reporting fully charged status, take the phone off the charger for about 3 minutes (just enough to slightly discharge it) and then turn it off (power down) and put it back on the charger for an hour or so.
Then, take it off the charger and turn it back on.
That's it! It sounds a bit ridiculous, but I think the cited reason was that whenever you install a new ROM, the "system" needs to understand when the battery is truly full and this trick helps to recalibrate and ensure that it is.
I really don't have any way (nor the desire) to verify the science behind this, but I did it myself after the horrible battery life I got with FroYo.
About a week out now and my battery is behaving completely normally, and possibly better than with 2.1, though only marginally if that...
Give it a shot - if it works, there you go, if not... Well it's not like you've lost anything.
Good luck, though YMMV.
Sent from my EVO 4G (Froyo - Stock HTC Rom)
have any of yall had a long delay when putting in a name for the reciver in sms? I kid you not it takes almost 3 to 5 sec for it to pull up a name and phone number from my phone book.
Its sad that you need to do "tricks" to get decent battery life, because most people expect it out of the box. Yes you can apply a custom rom with a undervolted cpu, but that shouldnt be necessary. I personally love doing all that stuff, but the majority of people are completely ignorant to these methods and might return their phones because of battery life, but for you people on here...BAKEDSNACK 1.2.5 with the latest of his kernel..amazing battery life.
Get rid of that task killer!! Froyo does not need it... Not to mention none of the task killers support Froyo correctly. Uninstall it, try using Froyo without it.
I recommend getting rid of the task killer and go without system panel lite. It works with froyo without any problems. I also recommend letting your battery completely die out before charging it again.
My Evo worked without any issues after the update to froyo. Also, if you are a widget fanatic, I recommend limiting the amount yo u use . The reason being that everytime you unlock your phone and scroll from one page to through next, you are loading said widgets into memory which help to eating up the battery quicker.
Also if you have a lot of things updating in the background, that can kill your battery quicker. I'm always on my phone and get anywhere from ten to fourteen hours of use. I also use a cpu manager to extend the life of my battery when not in use.
Sent from my HTC Evo
DO NOT DEPLETE YOUR BATTERY COMPLETELY!! These are Li-ion batteries. Depleting the battery too much can damage the cells. Discharging the batteries 100% before charging to avoid memory effect is a phenomena unique to Ni-Cad batteries. If a Li-ion is discharged too severely, it causes an irreversible reaction inside the cell that prevents the battery from holding any charge at all. This common in laptop batteries.
To the OPs issue, do you have the latest Facebook update (1.3.1)? Version 1.3.0 had an issue that was keeping the phone awake eating up battery life.
Sent from my PC36100 using XDA App
sombdy said:
DO NOT DEPLETE YOUR BATTERY COMPLETELY!! These are Li-ion batteries. Depleting the battery too much can damage the cells. Discharging the batteries 100% before charging to avoid memory effect is a phenomena unique to Ni-Cad batteries. If a Li-ion is discharged too severely, it causes an irreversible reaction inside the cell that prevents the battery from holding any charge at all. This common in laptop batteries.
To the OPs issue, do you have the latest Facebook update (1.3.1)? Version 1.3.0 had an issue that was keeping the phone awake eating up battery life.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
I could see how this could be bad if you discharged it completely every single time, but every phone ive had including the iphone, it has been specificly stated many times to COMPLETELY DISCHARGE THE BATTERY ATLEAST ONCE A MONTH
Still no luck...
Guys,
I have removed the task killer and have removed the other LED Light utility. Still having battery issues. Any other suggestions please??
Also,
What about the accelerometer? Having many issues with it. First off, when a text msg comes in, it automatically shows in landscape. Phone switches to landscape fine but it is very difficult to switch back to portrait.
Any other help is greatly appreciated.
Thanks,

Updated from 2.2 to 2.2.1 now have Battery Issues :(

Hi all,
Basically a few days ago I updated the firmware via Kies from 2.2 to 2.2.1 on my Galaxy S. However, I instantly noticed a huge decrease in battery life - 50% gone overnight when in standby! So I factory reset the phone and had everything disabled - the phone only lost 10% in 24 hours. So I decided to try and eliminate the possible causes so first I turned on wifi and within 2 hours I have lost almost 30% of the battery life with no usage so wifi seems to be the culprit
In the wifi menu network notification is off, however, the device seems to be scanning for networks every 5-10 seconds even when connected! I had no problems like this on 2.2 where I could comfortably get 2 days usage with wifi on. Also as I would prefer wifi to be on constantly when connected I would prefer not to change the wifi sleep policy. Any suggestions would be much appreciated
Many thanks, and sorry if there's similar thread already
which version of 2.2 did you have before?
try a flash back and see what happens.
Or try to drain battery (do not charge till 1% or almost dead) then full charge it.
Always happen to me when I flash my phone to a new ROM.
Thanks for the replies. I've tried leaving the battery till it was almost drained but maybe I'll let it go completely flat and charge it see if that makes a difference?
Also trying juice defender from the market to see if that helps. Not sure if it is a problem with the firmware though been looking around and a few people seem to have had the problem with no real solution
Might have to go back to 2.2 but would prefer not to as I've noticed a big decrease in lag on 2.2.1. Also can't remember what version of 2.2 I had I'll see how the battery life goes over the next few days after trying a couple of drain/charging cycles hopefully won't have to downgrade it. Come on 2.3.2
Thanks for the replies so far
Battery Bug is Major issue with all the versions of 2.2.1, Battery life is very bad. Even the Browser is worst in 2.2.1. May be in 2.3 it will get fixed.
I have tested all the new releases of 2.2.1. I found its smooth and fast.
A1exM said:
... replies. I've tried leaving the battery till it was almost drained but maybe I'll let it go completely flat and charge it see if that makes a difference?
...
Click to expand...
Click to collapse
Very very bad idea to let the battery go completly flat, it's the best way to damage it and even lose 20% of his initial capacity. Never go under 10%.
To calibrate it properly, wait 10% turn off the phone, fully charge it, restart. (do it again 3 times).
ttf said:
Very very bad idea to let the battery go completly flat, it's the best way to damage it and even lose 20% of his initial capacity. Never go under 10%.
To calibrate it properly, wait 10% turn off the phone, fully charge it, restart. (do it again 3 times).
Click to expand...
Click to collapse
The battery is calibrated to do this already, the charging circuit will not allow power to the device unless there is a certain amount of charge in the battery. It's there to protect the battery from this exact eventuality.
bullzeye.za said:
The battery is calibrated to do this already, the charging circuit will not allow power to the device unless there is a certain amount of charge in the battery. It's there to protect the battery from this exact eventuality.
Click to expand...
Click to collapse
That's how it's supposed to be in an ideal world.

FIX and INVESTIGATION: Android OS (battery drain) problem on Gingerbread

CASE CLOSED!!! Please read bottom part or flash stock GB 2.3.4!
I have posted this already on another thread (almost word for word) but I just really want you guys know and not panic about this problem and avoid going through difficult fixes like deleting system apps, recalibrating battery or even resetting your phone.
Since JVK was released, many observed that Android OS sometimes get hungry and devours battery. For some reason it is triggered to go berserk. Others say that the main culprit is the Auto update app. But other apps like Google Maps, Latitude and even just in a place where there is very low network signal or Wifi reception could also trigger this problem.
Now, I have a very simple solution: Turn off device, remove battery for a minute, put it back then turn it ON. Yes it is just that simple, REBOOT YOUR DEVICE.
Yeah after you turn on your device Android OS is still on the top of the list with high percentage but I believe it is just as it is because it previously consumed a lot of battery. All you have to do is observe again for an hour if your battery is dropping again, look into the graph and see if it is still steeping to the bottom. If it is dropping like Mt Everest, do the procedure above again.
If not, you will observe that after a couple of hours Android OS's percentage is getting low. Problem is fixed, (temporarily though).
Why go through deleting apps, recalibrate battery etc when you could just turn off your device for a minute?
I have experienced it a lot of times already (one of the first users who upgraded to JVK) but it doesn't bother me anymore. Turning off then on your device is very simple ain't it?
I highly advise that you do not touch anything on the sensitive part of your phone as there is no known single root of this problem. Just like I told you, many situations or apps could trigger Android OS to go berserk. Until there is no definite solution to this problem, I suggest you do the above procedure and save yourself from going through the pain of removing system apps, battery calibration or even hard reset.
By the way my battery usually lasts 3-4 days unless I made Android OS angry again.
INVESTIGATION
INVESTIGATION CLOSED!!! The culprit is caught. But the fix is not so simple. Only Samsung and genius devs (apparently the fix requires closed source modification) could fix this. If the problem occurs on your device, just do the temporary fix above. Please do not try to mess with your device for now.It is now fixed in XXJVP 2.3.4!
Click HERE and read the bottom part for more details.
All this is due to Tatsuya who pointed us to the right direction. A big thanks to him for helping us in this investigation. CASE CLOSED
Tatsuya79 said:
Ok thanks for the credits.
This previous link I gave explains how you can use watchdog to alert you when this bug triggers, so you know when to reboot your phone to stop this leakage (if you really want to stay on gingerbread until a fix is made by Samsung).
Click to expand...
Click to collapse
Guys if you want to help out please please please dial this *#*#4636#*#* and check "Usage Statistics" and let us know the top 3 items on the list! (highly suggested by {Angel}).
Below are some of the possible culprits currently pointed out by some users (I will update the list based from your feedback):
1. Software Update service
2. Google Maps
3. Latitude
4. Low network signal
5. Very low WIFI reception
6. Auto updates in Market
If this helps, a simple thanks is enough
This is a post coming from Angel:
{Angel} said:
Those of you with high drain, you can also check battery history through *#*#4636#*#* and see what you have under other usage 'running' and see if your phone as not been sleeping lately. I get this occasionaly with froyo and I suspect many people do also. A reboot fixes it for me, after that my battery usage is superb, but it's annoying as hell.
Click to expand...
Click to collapse
And this is my post somewhere:
jbdroid said:
Yes just like I said in the first post, this is just a temporary fix. But I think users should just do this rather than touch anything on their phone unless they really know the source of the problem.
That is why I suggested that they report what could be the possible triggers, like apps or situations, that make Android OS to awake and gobble up the battery. If we could just pinpoint those triggers maybe we can now figure out the root of the problem. Your fix of removing a system app, the auto update app, is not even the single source of the problem. We just do not know if that app is an essential app or not. Sooner or later you will have that problem again.
I am not saying we should just sit and wait. All I am saying is if you are a plain user and you do not know the exact root of the problem, then just do what I suggested. But if you are a dev and is exploring the root of the problem, then do as you like and we will be most thankful if you find out the answer.
People are mislead about what works and what is not. I just want to help.
Click to expand...
Click to collapse
Rebooting works, and it seems to be working until you start some apps again. I have the same apps installed as I had on JPY, but JVB drains my battery dead in half a day.
luci.pacurar said:
Rebooting works, and it seems to be working until you start some apps again. I have the same apps installed as I had on JPY, but JVB drains my battery dead in half a day.
Click to expand...
Click to collapse
Could you pinpoint some apps? I will update the OP to keep track of possible culprits so that others will avoid triggering this problem. Thanks!
I once saw that the battery drain from 95% to 9% after one night, and the android os used most of it. I rebooted my phone, and the problem has gone away, since. Happy with Gingerbread!
I'll give it a go! thnx
Active Widgets: WeatherBug Elite, 3G Watchdog, BatStat and Calendar.
Apps: All from above plus Twitter, Titanium Backup, Facebook, Twitter, Tapatalk, Camera360 Ultimate, Root Explorer, Foursquare.
Mostly I use the Twitter client and the browser. Location services are disabled.
It is hard to figure out from the above apps or which is the most probable suspect. Just incase the problem recurs on your phone, dial this: *#*#4636#*#*, Go to Usage statistics and Battery Information and please report back (include also information on the Battery Use in Settings).
I hope we can help others avoid having this problem until there is a fixed solution.
Thanks!
Did what you suggested and pulled the battery at 30% waited 5 minutes and put it back in.... 1hr later it was at 35% (WTF!) and 30min later it was at 38% (WTF!)
im assuming its recalibrating?
Not necessarily. Maybe the battery meter is anticipating the fast consumption rate of Android OS that is why when it got fixed, the meter is able to readjust the readings based from the current consumption rate of your phone. Good to know it helped
Maybe use the 'forbidden' task killer? Works for me... Maybe im imagening it but works.
Btw my battery goes quickly down after getting below 25%. My battery not calibrated? Should i.calibrate it? I have this program to do it but am afraid that calibration goes wrong. (example what if my battery is 95% and will calibrate to 100. What if.i charge my battery higher than this.. Will it show 104%? Or will android stop working for it cannot be displayed in the notificationbar.
Using cm7.
Sent from my HTC Desire using XDA App
You do not have to recalibrate. Cm7 has a known issue about battery. I think you cannot charge past 94 or 95 percent and battery usage is a bit terrible. Please refer to cm7 thread for possible fixes, (the last time I checked their thread, they say it is probably kernel related).
Just turning off, pulling the battery and turning on does do a lot for me! i went from 10% per hour to only 1%! great thnx!
Hi,
About battery drain in gb, once fixed the wifi sleep policy issue ( by setting it to "never") u shouldn't have batt drain, but i've installed green power ( juice defender do the work too i think) to get some wifi management possibility back and it improuved my batt life.
But never the less, my battery won't last more than one day of hard usage ( being hanged on xda all day long, for instance ;-)
Sent from my GT-I9000 using XDA App
Guys, just turn off the task killer, it helped in my case. looks like its not working well on ginger
Rebooting works just temporarily.
It will come back the next day or so.
This is not a solution at all tbh.
Yes just like I said in the first post, this is just a temporary fix. But I think users should just do this rather than touch anything on their phone unless they really know the source of the problem.
That is why I suggested that they report what could be the possible triggers, like apps or situations, that make Android OS to awake and gobble up the battery. If we could just pinpoint those triggers maybe we can now figure out the root of the problem. Your fix of removing a system app, the auto update app, is not even the single source of the problem. We just do not know if that app is an essential app or not. Sooner or later you will have that problem again.
I am not saying we should just sit and wait. All I am saying is if you are a plain user and you do not know the exact root of the problem, then just do what I suggested. But if you are a dev and is exploring the root of the problem, then do as you like and we will be most thankful if you find out the answer.
People are mislead about what works and what is not. I just want to help
Guys, on Gingerbread I've had battery drain two times:
1. Had about 14% drain in 3 hours all of a sudden, without doing anything at all. Just started going down for some reason.
2. This morning, saw about 40% drain in 7 hours..
And, both time I solved it by Clearing Memory from the Task Manager.. Went back to normal 2-3% drain per 6-7 hours after that..
So this might also be a solution. Go to Task Manager, RAM tab, and Clear Memory..
i'm on ginger also and my battery acts weird. 2 days ago i charged my phone over night while it was closed. the battery holds for 15 hours with massive use.
last night i did it again, but today it went from 98% to 80% in about an hour !
this is really weird.
addicted2088 said:
Guys, on Gingerbread I've had battery drain two times:
1. Had about 14% drain in 3 hours all of a sudden, without doing anything at all. Just started going down for some reason.
2. This morning, saw about 40% drain in 7 hours..
And, both time I solved it by Clearing Memory from the Task Manager.. Went back to normal 2-3% drain per 6-7 hours after that..
So this might also be a solution. Go to Task Manager, RAM tab, and Clear Memory..
Click to expand...
Click to collapse
Did you manage to check first what is running on your device by looking into Battery Usage settings? I think you have a case of rogue application running in the background.
If you have not rebooted yet could you please attach a screenshot of the battery usage list and graph? In that way we might possibly identify the app running prior to the clearing of memory. Thanks!

[Help] Battery Drain issue in One Plus One

Hello Experts,
My Battery is draining like crazy. I tried almost everything to figure out what is the issue but could not figure out. Below are the details I gathered from the things I tried.
My battery started draining almost 30 % overnight. Initially I thought it was due to the Unofficial Marshmallow Rom, I could see Wi-Fi to be cause of this drain. Hence I tried different Roms (Cyanogen Mod, PA, DarkObas, Sultan ROM, and stock Cyanogen OS ( Past 3 versions, including latest one). but the battery drain didn't stop.
So I decided to flash PA rom again, installed OpenGapps PICO (Only Google play service nothing else). I installed CPU spy and left it over night in Airplane mode. When I checked in the morning (after 7 hours) battery drain was of 25 %. This was surprising as nothing was running on my phone and only the minimum apps were installed. At this time, CPU spy showed no abnormal wake locks and was in Deep Sleep for almost 93% of the total time. The stock battery usage showed only Mobile Stand by and usage of 50 mAh.
Can you please help me figure out what is causing the battery drain.
kbahtelia said:
Hello Experts,
My Battery is draining like crazy. I tried almost everything to figure out what is the issue but could not figure out. Below are the details I gathered from the things I tried.
My battery started draining almost 30 % overnight. Initially I thought it was due to the Unofficial Marshmallow Rom, I could see Wi-Fi to be cause of this drain. Hence I tried different Roms (Cyanogen Mod, PA, DarkObas, Sultan ROM, and stock Cyanogen OS ( Past 3 versions, including latest one). but the battery drain didn't stop.
So I decided to flash PA rom again, installed OpenGapps PICO (Only Google play service nothing else). I installed CPU spy and left it over night in Airplane mode. When I checked in the morning (after 7 hours) battery drain was of 25 %. This was surprising as nothing was running on my phone and only the minimum apps were installed. At this time, CPU spy showed no abnormal wake locks and was in Deep Sleep for almost 93% of the total time. The stock battery usage showed only Mobile Stand by and usage of 50 mAh.
Can you please help me figure out what is causing the battery drain.
Click to expand...
Click to collapse
Did you try to disable Location>Scanning>Wi-Fi scanning & Bluetooth Scanning? I had a similar situation and started using amplify + greenify on Resurrection Remix and now I have a very good battery life...
vigneshnallamad said:
Did you try to disable Location>Scanning>Wi-Fi scanning & Bluetooth Scanning? I had a similar situation and started using amplify + greenify on Resurrection Remix and now I have a very good battery life...
Click to expand...
Click to collapse
Thank you for your reply.
Yes I already tried that. The strange thing is Battery drain is observed in Airplane mode also, while minimum apps installed(Stock apps with PA rom and Opengapps Pico package). Do you have any other suggestions.
It's really hard to judge what could be your issue, you can try different methods to find out who is the actual culprit.May be an app eating your battery or device might have nasty wakelocks,alarms etc or the battery itself would be damaged etc.
Anyways,Turn off ambient display, install BetterBatteryStats then run a full cycle and analyze entire stats of your battery, you'll get know the issue or at least a clue. If you couldn't find out the issue after BetterBatteryStats test then clean flash the a ROM(Recommends CandySix or Darkobas ) w/o GApp and give it a try
Firmware
Try a different firmware version. Here's a link :
http://forum.xda-developers.com/oneplus-one/general/firmware-modem-oneplus-one-lollipop-t3300907
Sounds like your battery cannot hold its charge anymore.
How old is your OPO? May be your battery life is about to over.
And this battery drain suddenly started or gradually increased?
Try diagnosing by changing the Location settings to device only. It's some weird bug with COS and CM that's making it to the latest builds of 6.0.1 . I saw that older builds in May don't have this problem.
soralz said:
Sounds like your battery cannot hold its charge anymore.
Click to expand...
Click to collapse
Thank you for the reply and sorry for the delayed response. I was getting New Battery
Unfortunately, Problem still exists even with the Brand New battery. Can any hardware issue cause this issue? It's certainly not Battery problem and not software problem as well.
JnkPanchal008 said:
How old is your OPO? May be your battery life is about to over.
And this battery drain suddenly started or gradually increased?
Click to expand...
Click to collapse
Thank you for the reply and sorry for the delayed response. I was getting New Battery
Unfortunately, Problem still exists even with the Brand New battery. Can any hardware issue cause this issue? It's certainly not Battery problem and not software problem as well.
Does it also happen on lollipop roms!?
kbahtelia said:
Thank you for the reply and sorry for the delayed response. I was getting New Battery
Unfortunately, Problem still exists even with the Brand New battery. Can any hardware issue cause this issue? It's certainly not Battery problem and not software problem as well.
Click to expand...
Click to collapse
You really should have taken my advice earlier and diagnose before making any decisions. If your battery truly was dying, then apps like 3C and Geekbench's battery test would've picked this up as they've linear-regression curve data from aggregate sources that you could've compared to. In your OP, you stated that you saw WiFi as a culprit, but did you also know that Google Play Services (depending on version) can do location requests up to 78 times within the hour on stock apps alone? I used to have this similar battery issue, but that was related to location-requests from Google Play Services that somehow propagated to other sources based on CM13's July commit, meaning that kernels also based on this could've been affected as well. What I eventually settled for, in the meantime, is using SultanXDA's 08082016 build and so far everything looks good on Wifi regarding what I expect for typical battery performance. If I learn something, I'll come back to report on it.
GuitarGuy96 said:
Does it also happen on lollipop roms!?
Click to expand...
Click to collapse
Have not tried any Lollipop Rom since the issue started.
alpha-niner64 said:
You really should have taken my advice earlier and diagnose before making any decisions. If your battery truly was dying, then apps like 3C and Geekbench's battery test would've picked this up as they've linear-regression curve data from aggregate sources that you could've compared to. In your OP, you stated that you saw WiFi as a culprit, but did you also know that Google Play Services (depending on version) can do location requests up to 78 times within the hour on stock apps alone? I used to have this similar battery issue, but that was related to location-requests from Google Play Services that somehow propagated to other sources based on CM13's July commit, meaning that kernels also based on this could've been affected as well. What I eventually settled for, in the meantime, is using SultanXDA's 08082016 build and so far everything looks good on Wifi regarding what I expect for typical battery performance. If I learn something, I'll come back to report on it.
Click to expand...
Click to collapse
I did took your advice and checked Location services. The problem occurs even with Wi-fi, 3G and Location desiabled. Also in Airplane mode with almost nothing installed (only gapps PICO package and CPUSpy)
i suggest trying old version it may help
kbahtelia said:
Have not tried any Lollipop Rom since the issue started.
Click to expand...
Click to collapse
You might wanna try that. Possibly MM eating through. I still use Lollipop too. I find no need for MM yet. Also MM feels anti-dev to me for some reason :/ Needs all workarounds for things that were previously much easy to do. Oh well. Try Lollipop and see if it helps? It'd have been my first step for troubleshooting before buying a new battery
JnkPanchal008 said:
How old is your OPO? May be your battery life is about to over.
And this battery drain suddenly started or gradually increased?
Click to expand...
Click to collapse
GuitarGuy96 said:
You might wanna try that. Possibly MM eating through. I still use Lollipop too. I find no need for MM yet. Also MM feels anti-dev to me for some reason :/ Needs all workarounds for things that were previously much easy to do. Oh well. Try Lollipop and see if it helps? It'd have been my first step for troubleshooting before buying a new battery
Click to expand...
Click to collapse
Yesterday, I left my phone in Recovery mode (TWRP 3.0.2.0). In less then 5 hours, I observed battery drain of 20%. Same amount of drain is observed when running MM rom. I don't think changing to Lollipop will help. To me it looks like some hardware issue, can any hardware beside battery cause such issue?

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