Develop Bugs

[Q] Questions about CyanogenMod, and general battery life

Hey everyone, last weekend I unrooted and wiped my phone, went back to factory settings, rerooted and installed CM6.1 RC2. I've been enjoying it so far (because I hate Sense UI) but I've got a couple of questions that need answered. Hopefully you all can help me.
CM6
1. Is there a setting to turn off always-on mobile data? I cannot find it.
2. For some odd reason, I cannot turn on bluetooth. I've not had a problem with turning on bluetooth with any other rom. In fact, I remember testing bluetooth the night I installed CM6. Is this an issue with the phone or the rom?
3. No matter how much I turn off Auto-Sync, it turns back on. What is doing this?
Battery Life
1. On average, I get around 10-14 hours battery life a day, maybe a little more if I barely use my phone all day. I've heard a lot of people say that an ideal battery drain with the screen off should be 1-2%/hour, but mine will drain from 6% to even 10% in 40-50 minutes (EDIT: Currently 75% battery left, unplugged for 2hrs 30min, done nothing but use the browser for 5 minutes, download something, and install it)! I use systempanel and spareparts to monitor which apps could possibly be doing this, but none look like they're eating up too much of the battery. I check Facebook 4-5 times a day, use the browser, and check Gmail. I don't use Google Talk. My screen brightness is around 30-40% and I have underclocked when the screen is off with setcpu. What is draining my battery so fast? It's a shame that there are so many cool things to do with this phone but I can't do them in fear of my battery dying before the end of the day
Sorry, that last question was long, but I did not want 2 separate posts. Thanks guys, I hope you can help!

CarterF said:
Hey everyone, last weekend I unrooted and wiped my phone, went back to factory settings, rerooted and installed CM6.1 RC2. I've been enjoying it so far (because I hate Sense UI) but I've got a couple of questions that need answered. Hopefully you all can help me.
CM6
1. Is there a setting to turn off always-on mobile data? I cannot find it.
2. For some odd reason, I cannot turn on bluetooth. I've not had a problem with turning on bluetooth with any other rom. In fact, I remember testing bluetooth the night I installed CM6. Is this an issue with the phone or the rom?
3. No matter how much I turn off Auto-Sync, it turns back on. What is doing this?
Battery Life
1. On average, I get around 10-14 hours battery life a day, maybe a little more if I barely use my phone all day. I've heard a lot of people say that an ideal battery drain with the screen off should be 1-2%/hour, but mine will drain from 6% to even 10% in 40-50 minutes! I use systempanel and spareparts to monitor which apps could possibly be doing this, but none look like they're eating up too much of the battery. I check Facebook 4-5 times a day, use the browser, and check Gmail. I don't use Google Talk. My screen brightness is around 30-40% and I have underclocked when the screen is off with setcpu. What is draining my battery so fast? It's a shame that there are so many cool things to do with this phone but I can't do them in fear of my battery dying before the end of the day
Sorry, that last question was long, but I did not want 2 separate posts. Thanks guys, I hope you can help!
Click to expand...
Click to collapse
1. no. you could however turn data roaming off or use a program to accomplish this such as "tasker"
2. what do you mean you cant turn it on? what does it do when you enable it? use the widget in your notification drop down.
3. turn off background data as well and that should fix your problem.
and as for you other question. 10-14hrs is perfectly normal for battery life on cm6.1. and fyi: its RC1. there is no RC2 for 6.1 as of yet

t3project said:
1. no. you could however turn data roaming off or use a program to accomplish this such as "tasker"
2. what do you mean you cant turn it on? what does it do when you enable it? use the widget in your notification drop down.
3. turn off background data as well and that should fix your problem.
and as for you other question. 10-14hrs is perfectly normal for battery life on cm6.1. and fyi: its RC1. there is no RC2 for 6.1 as of yet
Click to expand...
Click to collapse
Ah thanks for correcting my mistake, and answering my questions. My battery life isn't terrible per se, but I guess I was asking more on how I could make it better (and if I had a rogue app/other battery eater), especially because I see people claiming anywhere from 20-40 hours with a few tweaks.
And regarding the bluetooth issue, it just won't turn on. The option grays out for a few seconds like it usually does when it's initializing, and then it doesn't turn on. The notification widget method does not work either.
Also, there's no other way to turn off auto-sync? I just think it would be a hassle having to turn background data back on everytime I want to use the market. I use JuiceDefender, too, could there possibly be a conflict between the app and my phone's settings?

Man i'm with you here, I use CM6.1 too and love it but the first 30 minutes i unplug the phone from charging i'm already at like 90% battery =/

CarterF said:
Ah thanks for correcting my mistake, and answering my questions. My battery life isn't terrible per se, but I guess I was asking more on how I could make it better (and if I had a rogue app/other battery eater), especially because I see people claiming anywhere from 20-40 hours with a few tweaks.
And regarding the bluetooth issue, it just won't turn on. The option grays out for a few seconds like it usually does when it's initializing, and then it doesn't turn on. The notification widget method does not work either.
Also, there's no other way to turn off auto-sync? I just think it would be a hassle having to turn background data back on everytime I want to use the market. I use JuiceDefender, too, could there possibly be a conflict between the app and my phone's settings?
Click to expand...
Click to collapse
I had the same problem with my Bluetooth recently. When I try to search for devices the phone locks up and I have to pull the battery. Wonder if this is a kernel issue. I am on snap
Sent from my PC36100 using XDA App

michaelvibe said:
I had the same problem with my Bluetooth recently. When I try to search for devices the phone locks up and I have to pull the battery. Wonder if this is a kernel issue. I am on snap
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Yep, I'm on Snap too; must be it.

Another thing; I've got a friend on Stock 2.2 Sense (battery sucking widgets filling the home screen, etc) with 100% brightness and mobile data constantly on and he gets better battery life than me (20+ hours!) What is going on!?!?!

CarterF said:
Another thing; I've got a friend on Stock 2.2 Sense (battery sucking widgets filling the home screen, etc) with 100% brightness and mobile data constantly on and he gets better battery life than me (20+ hours!) What is going on!?!?!
Click to expand...
Click to collapse
never heard of such a thing on stock......

Klk450 said:
never heard of such a thing on stock......
Click to expand...
Click to collapse
I couldn't believe it either, he had 3G on all day and everything and we barely get any signal at all in class. On for almost 8hrs with more than 70% left. I was at about 53%

[Q] HTC Kaiser CPU Doesn't Sleep?

Did a search, and didn't find anything regarding this, so I'll point this out. I've noticed whenever my Kaiser (KAIS100) goes to sleep, it doesn't actually sleep, I can still press every button and the phone will "wake", screen comes on.
When I check Spare Parts > Battery History, it shows my phone's been running for 5days even though it's been on for 10 minutes actual. If I continue to put the phone to sleep that time grows exponentially.
Is my KAIS really sleeping, or is there a bug somewhere?
I'm running l1q1d's latest .32 kernel, with Fat Free Froyo build with system/data on NAND.
Battery also only lasts about 8hrs in "standby", and not even 2hrs with full use. With WinMo, I get about 36hrs standby, and about 5hrs full use.

Krazy-Killa said:
I've noticed whenever my Kaiser (KAIS100) goes to sleep, it doesn't actually sleep, I can still press every button and the phone will "wake", screen comes on.
Click to expand...
Click to collapse
Screen comes on, obiusly, but its locked right? that the way its ment to be... if you wanna check the hour or see if u got messages or missed calls... or it unlocks?
Krazy-Killa said:
When I check Spare Parts > Battery History, it shows my phone's been running for 5days even though it's been on for 10 minutes actual. If I continue to put the phone to sleep that time grows exponentially.
Click to expand...
Click to collapse
I guess its not completley implemented yet, search this forum I remember I looked something about it, or post a comment to our good friend n2rjt in that thread:
http://forum.xda-developers.com/showthread.php?t=782269
Have you modified .nbh file with atools and entered the correct value on the advanced batt capacity? (units = battery real mAh * 1.6) if you havent or if you own an old battery you'll experience a lot of batt consumption or inaccurate readings....

albertorodast2007 said:
Screen comes on, obiusly, but its locked right? that the way its ment to be... if you wanna check the hour or see if u got messages or missed calls... or it unlocks?
I guess its not completley implemented yet, search this forum I remember I looked something about it, or post a comment to our good friend n2rjt in that thread:
http://forum.xda-developers.com/showthread.php?t=782269
Have you modified .nbh file with atools and entered the correct value on the advanced batt capacity? (units = battery real mAh * 1.6) if you havent or if you own an old battery you'll experience a lot of batt consumption or inaccurate readings....
Click to expand...
Click to collapse
The phone locks like it's suppose too, but the problem I'm having is the CPU of the Kaiser isn't actually falling asleep. I'm getting the same battery consumption as when the screen is off compared to on, and sitting there (no activity on my part, just leaving the screen on for no reason )
Every so often the phone will be asleep, and the only way to bring it back on is by hitting the power button, but about 95% of the time I can press the call button, end button, OK button, IE button, hell even push down on the wheel on the other side of the Kaiser and the screen will come on showing the lock screen.
As far as the battery capacity, I have not done that, but the phone's been auto-learning my capacity, and it will get to the 2160 units, compared to the 2000 it's always set too, and sometimes reach 2377 units.
I have tried several Radio versions, down to 1.65.xx.xx version (which was the original version on my phone), and no changes, and tried different builds and no change either. DZOs kernel doesn't make a difference either, except screw up my battery meter completely. lol

uhm thats wierd.. i can only unlock through the power button, what i have experienced is that if its conected to an external power source it does reacts to any button I press.... but not on battery... maybe its a build issue... right now im using scoots CM rls 5a, dont remember if warbyte's donut behave like that...

albertorodast2007 said:
uhm thats wierd.. i can only unlock through the power button, what i have experienced is that if its conected to an external power source it does reacts to any button I press.... but not on battery... maybe its a build issue... right now im using scoots CM rls 5a, dont remember if warbyte's donut behave like that...
Click to expand...
Click to collapse
Did some more testing, and found that without it plugged into power it does only respond to the power button, but again it's only about 15-20% of the time, and even those times seem iffy as it just seems like the phone's just slow to respond.
Phone is also somewhat warm as well even when "off", and I do have the phone overclocked to 450MHz, kernel is set to 425 (running a test on speed/stability atm)
At 425MHz it's still reasonably warm, and at 450 the temperature jumps alot.
Anyone else have an issue of the tap sounds when tapping on the screen sometimes not playing? Granted phone quality is great, and GPS is working well, though Camera is broken on my end, even though it was working before.

It sounds like there is a real issue. Some application is running continuously for you, preventing the CPU from going to sleep. I have had that before. Try removing widgets from the main screen. For me, the problem was an app that showed a flip-clock and the weather, and looked just like HTC Sense. I don't remember its name but it used to be popular.
The newest 2.6.32 kernel seems to sleep relatively well for me. Sometimes it wakes on any key, and sometimes it wakes up to a totally white screen. Other times it just plain refuses to wake up. Usually I can coax it back to sanity (from white screen or from sleep) by Fn-Left keyboard softkey, then Fn-Right keyboard softkey.
Your phone should get approx 10 or so hours of life from a charged battery. Less than you get with WinMo, but lots more than you seem to be seeing.

n2rjt said:
It sounds like there is a real issue. Some application is running continuously for you, preventing the CPU from going to sleep. I have had that before. Try removing widgets from the main screen. For me, the problem was an app that showed a flip-clock and the weather, and looked just like HTC Sense. I don't remember its name but it used to be popular.
The newest 2.6.32 kernel seems to sleep relatively well for me. Sometimes it wakes on any key, and sometimes it wakes up to a totally white screen. Other times it just plain refuses to wake up. Usually I can coax it back to sanity (from white screen or from sleep) by Fn-Left keyboard softkey, then Fn-Right keyboard softkey.
Your phone should get approx 10 or so hours of life from a charged battery. Less than you get with WinMo, but lots more than you seem to be seeing.
Click to expand...
Click to collapse
by chanse wasnt weather widget? had a really bad slowdown over scoots CM because of that widget, was constantly trying to update the weather....

albertorodast2007 said:
by chanse wasnt weather widget? had a really bad slowdown over scoots CM because of that widget, was constantly trying to update the weather....
Click to expand...
Click to collapse
Yes that's the one. it needs to be removed, and can be replaced by Fancy Widget.
Sent from my Android on HTC Kaiser/Kaiser/Polaris using XDA App

n2rjt said:
It sounds like there is a real issue. Some application is running continuously for you, preventing the CPU from going to sleep. I have had that before. Try removing widgets from the main screen. For me, the problem was an app that showed a flip-clock and the weather, and looked just like HTC Sense. I don't remember its name but it used to be popular.
The newest 2.6.32 kernel seems to sleep relatively well for me. Sometimes it wakes on any key, and sometimes it wakes up to a totally white screen. Other times it just plain refuses to wake up. Usually I can coax it back to sanity (from white screen or from sleep) by Fn-Left keyboard softkey, then Fn-Right keyboard softkey.
Your phone should get approx 10 or so hours of life from a charged battery. Less than you get with WinMo, but lots more than you seem to be seeing.
Click to expand...
Click to collapse
Ok, I'll give it a whirl, and remove some of the widgets I have running, and see if it does help out. Right now though I'm re-installing /system as I tried messing around with the density as 110 seems to work real well with where things are placed on the home screen (no widgets are overlapping each other), but Market won't work, and the Android Keyboard keeps crashing (on-screen).
But anyways, phone's booting back up, so I'll test out the battery life here again, as I got about 95% charge right now, so should serve as a good test for battery life, and CPU Sleepage.

Having a similar issue, seems to behave ok (screen lock comes on when I press power button) but power usage on standby is similar to original poster's. About 8 hours standby. Went to bed last night and it said 66% charged (1300mAH battery) and it didn't last the night. Takes a looooong time to charge to full though so I doubt it's lying about fully charging the battery, suggesting it's using it up at a fast rate.
How do I check background tasks?
Edit: This is with WiFi, GPS and Sync OFF by the way. On the other hand I live in a low signal area (typically 1-2 bars) could it be straining to get a better signal? Used to have an old nokia that used to run itself flat in no time when there was a low/missing signal!
Edit 2 : Figured it out, turns out the ebay app has a service and a process running - even with notifications turned off! Have killed these and see if anything improves

That could very well be part of the problem, although it shouldn't kill it from 66% with just the radio. How much capacity does it calibrate itself to?

cycloid said:
Having a similar issue, seems to behave ok (screen lock comes on when I press power button) but power usage on standby is similar to original poster's. About 8 hours standby. Went to bed last night and it said 66% charged (1300mAH battery) and it didn't last the night. Takes a looooong time to charge to full though so I doubt it's lying about fully charging the battery, suggesting it's using it up at a fast rate.
How do I check background tasks?
Edit: This is with WiFi, GPS and Sync OFF by the way. On the other hand I live in a low signal area (typically 1-2 bars) could it be straining to get a better signal? Used to have an old nokia that used to run itself flat in no time when there was a low/missing signal!
Click to expand...
Click to collapse
Phone Radio really shouldn't use more power with low signal, in fact it really shouldn't affect power output at all (well except the fact that it's on). I have a 1350mAH battery, but it's reading at 2470 adjusted, so I re-flashed a new kernel with the new battery changes, now it's reading 2437units adjusted, which is over 1500mAH for the battery which is not what I own. But on the bright side, my battery capabilities are improving, and the battery meter is starting to read alittle more accurately.

Krazy-Killa said:
Phone Radio really shouldn't use more power with low signal, in fact it really shouldn't affect power output at all (well except the fact that it's on). I have a 1350mAH battery, but it's reading at 2470 adjusted, so I re-flashed a new kernel with the new battery changes, now it's reading 2437units adjusted, which is over 1500mAH for the battery which is not what I own. But on the bright side, my battery capabilities are improving, and the battery meter is starting to read alittle more accurately.
Click to expand...
Click to collapse
yes, i boutght seidio 1600 mAh, and the kernel ended up adjusting it to 3260 units... (about 2000 mAh) maybe the 1.6 factor isnt right just as n2rjt said, maybe its closer to the 2.0

Seems like ebay may have been the culprit. Killed the ebay process and application in the background and only used about 10% over night (as opposed to over 60% the night before). I'll have to leave it overnight with ebay running again for a proper scientific test next

cycloid said:
Seems like ebay may have been the culprit. Killed the ebay process and application in the background and only used about 10% over night (as opposed to over 60% the night before). I'll have to leave it overnight with ebay running again for a proper scientific test next
Click to expand...
Click to collapse
Yah, I'm starting to run into issues with certain apps keeping the phone awake and not letting it sleep. I kill some of the apps and it actually helps out the battery some.
I installed the original launcher from one of the other froyo builds, but came across with an FC with acore, so now back with ADW.Launcher or LauncherPro.

Krazy-Killa said:
Yah, I'm starting to run into issues with certain apps keeping the phone awake and not letting it sleep. I kill some of the apps and it actually helps out the battery some.
I installed the original launcher from one of the other froyo builds, but came across with an FC with acore, so now back with ADW.Launcher or LauncherPro.
Click to expand...
Click to collapse
When you install a app, take a look at its requirements, like "PREVENT FROM SLEEP". You might have a app doing just that..

daedric said:
When you install a app, take a look at its requirements, like "PREVENT FROM SLEEP". You might have a app doing just that..
Click to expand...
Click to collapse
Yep, most of the apps I download have that. But in sad news, I'm actually going back to WMO 6.5 as I can't seem to keep Android stable on my kaiser.. I've reinstall the same build twice (which I know is not corrupted, as it was working fine 2 days ago), and Market is always corrupted...... So, for now, until I have a secondary phone I can revert too, I'll be going back to WMO for the time being.

Krazy-Killa said:
Yep, most of the apps I download have that. But in sad news, I'm actually going back to WMO 6.5 as I can't seem to keep Android stable on my kaiser.. I've reinstall the same build twice (which I know is not corrupted, as it was working fine 2 days ago), and Market is always corrupted...... So, for now, until I have a secondary phone I can revert too, I'll be going back to WMO for the time being.
Click to expand...
Click to collapse
Umh... sad...
We'll wait for you! Bye bye

daedric said:
Umh... sad...
We'll wait for you! Bye bye
Click to expand...
Click to collapse
LOL! Not like I'm leaving, I'll be popping on here every so often, and still doesn't mean I'll use Haret to load up Android to test out new builds that come out, and new kernels that are released in the future.

Krazy-Killa said:
LOL! Not like I'm leaving, I'll be popping on here every so often, and still doesn't mean I'll use Haret to load up Android to test out new builds that come out, and new kernels that are released in the future.
Click to expand...
Click to collapse
Man... that's a sin! You can't do that! You'll be off from the Brotherhood!
Kiddin' ;D

[Q] Is there a problem with my battery?

Hi,
Is there something wrong with my battery? This is the second time it has happened to me .. last time I left it overnight at 45% and when I woke up the phone was off, so I looked in battery usage and saw that it fell to 0 right from ~25%, and today, I was in an international call, and the call cut off and the phone shut down. It wasn't hot at all, I checked.
Is there some bug with the software, or is it a problem with my battery?

Can you check in the setting menu, where the battery is used for? There must be some or one thing, maybe a constantly updating widget, which is faulty, it really take me 1.5 days before my battery is flat with internet on all the time, and 3 days plus with internet off.
On the other hand I had the same with my lg a while ago and after a flash it was OK.
Sometimes these kind of phones behave very unpredictable....
sent from arc or optimus 2x

PollPixx said:
Can you check in the setting menu, where the battery is used for? There must be some or one thing, maybe a constantly updating widget, which is faulty, it really take me 1.5 days before my battery is flat with internet on all the time, and 3 days plus with internet off.
On the other hand I had the same with my lg a while ago and after a flash it was OK.
Sometimes these kind of phones behave very unpredictable....
sent from arc or optimus 2x
Click to expand...
Click to collapse
Oh I'm not worried about the battery life, I was putting it through a lot of use.. and I have a lot of widgets updating frequently
My concern is with the sudden drop from ~25% to 0 which has happened twice now

your battery might be wrongly calibrated.Download battery calibrator from market.charge to 100%,click calibrate battery..it should fix your problem

pngface said:
Hi,
Is there something wrong with my battery? This is the second time it has happened to me .. last time I left it overnight at 45% and when I woke up the phone was off, so I looked in battery usage and saw that it fell to 0 right from ~25%, and today, I was in an international call, and the call cut off and the phone shut down. It wasn't hot at all, I checked.
Is there some bug with the software, or is it a problem with my battery?
Click to expand...
Click to collapse
This happened to me few times. The last time I noticed was from ~48% left it overnight (only about 6 hours) and I woke up to find the phone was off. Usually my phone loose about ~25% overnight. Not sure what or who is the culprit. I have flashed few firmwares and none fixed the issue. Currently I'm rooted using Generic World firmware with locked bootloader and removed many bloatwares.
lijinc said:
your battery might be wrongly calibrated.Download battery calibrator from market.charge to 100%,click calibrate battery..it should fix your problem
Click to expand...
Click to collapse
I've this program installed and I'm sure it has not helped with this issue. I see "missing data" when there is a sudden loss of battery.

I´ve also the problem; my arc is not rooted, so there is no chance to calibrate the battery...?

Had it once, took the battery out and in again and it had 20% more again. Then I charged it at home and so far it works fine.
Sent from my LT15i using XDA Premium App

Flo95 said:
Had it once, took the battery out and in again and it had 20% more again. Then I charged it at home and so far it works fine.
Click to expand...
Click to collapse
Thank you. I´ve taken out the battery for about 15 minutes and put it in. The percentage is still as before.
Is there another way to reset the batterystats.bin without root?

Well looks like many people are having this issue, either there are a lot of faulty batteries out there, or its a problem with the firmware. I'm leaning towards the latter.
I'm using Rogers 2.3.3, what are you guys using?

pngface said:
Well looks like many people are having this issue, either there are a lot of faulty batteries out there, or its a problem with the firmware. I'm leaning towards the latter.
I'm using Rogers 2.3.3, what are you guys using?
Click to expand...
Click to collapse
I experinced this issue with Singapore generic firmware as well as World Generic (current) firmware. Hence I don't think it could be a specific firmware issue.

Awake
Anyway to find out what or which program kept the phone to stay in awake? As you can see the screenshot, the phone was awake during random times and most of the time without the screen isn't on.

Sorry, no idea,perhaps someone else here can help
For me its probably something like latitude which I set to auto update

pngface said:
Sorry, no idea,perhaps someone else here can help
For me its probably something like latitude which I set to auto update
Click to expand...
Click to collapse
"Latitude"? How can I verify that it doesn't affect me

Latitude comes with Google Maps, its basically a location sharing feature. If you press the menu button in google maps you can click on latitude, then menu button again -> settings, and change from 'Detect Automatically' to 'Manual'
If you don't know what it is I doubt you actually have it enabled anyway, so it could be some weather widget maybe?

pngface said:
Latitude comes with Google Maps, its basically a location sharing feature. If you press the menu button in google maps you can click on latitude, then menu button again -> settings, and change from 'Detect Automatically' to 'Manual'
If you don't know what it is I doubt you actually have it enabled anyway, so it could be some weather widget maybe?
Click to expand...
Click to collapse
I checked and my menu reads as "Join Latitude" which means I have not enabled it in the first place (I guess so).
I'm using Beautiful widget for weather service so not sure whether that is the culprit.
I wish there is more visibility for this .
Thanks for your explanations .

Btw I tried the Supercharger script, and it has doubled my battery life
(You need root)
I chose options 1,6,17

Here it happened again today early morning!!

prathaban said:
Here it happened again today early morning!!
Click to expand...
Click to collapse
Your wifi seems to be a bit spotty
Hopefully SE will see this thread and fix the issue in the next update

pngface said:
Your wifi seems to be a bit spotty
Hopefully SE will see this thread and fix the issue in the next update
Click to expand...
Click to collapse
May be due to the "Green Power" application. I checked before and if I switch on the WiFi it is continues without any problem.
I too hope for the same as you. Annoying bug .

I have the very same problem. The phone battery goes from 100% to 66-64 over the night...showing that the Cell standby and Display has drained the most of the %...

Poor Battery Life

I am getting very poor battery life. Fully charged at 8am and dead by 5:30. Hardly even using it. I have a limited number of apps on, just a subset of those on my Nexus One and no rouge ones at all. Made a few calls, no web, a couple of gtalk posts and that is it.
See attached usage screen charge to dead and charging again!
The phone is useless like this... any ideas????

Are you in a building with poor reception? I noticed this issue when I left data on when my company moved buildings.

moa77 said:
I am getting very poor battery life. Fully charged at 8am and dead by 5:30. Hardly even using it. I have a limited number of apps on, just a subset of those on my Nexus One and no rouge ones at all. Made a few calls, no web, a couple of gtalk posts and that is it.
See attached usage screen charge to dead and charging again!
The phone is useless like this... any ideas????
Click to expand...
Click to collapse
Is that solid blue bar from your WiFi being on all the time, or is that your awake bar on 100% of the time from a bad app?
That battery life looks atrocious. Show us the second screen to see the "awake" times.

martonikaj said:
Is that solid blue bar from your WiFi being on all the time, or is that your awake bar on 100% of the time from a bad app?
That battery life looks atrocious. Show us the second screen to see the "awake" times.
Click to expand...
Click to collapse
The phone is now changed so, the history has gone! I'll do more screens tomorrow.
I am not sure what you mean by awake bar?
I keep wifi and bt on all the time, as I did on my old N1. I am in the same place in the day as I was with that and will have same reception, which is not bad.
App installed are not strange at all;
Adobe Reader
Android Task Killer
AL Voice Recorder
Amazon MP3
Astro
Google Authenicator
Compass
ConnectBot
Currency Converter
ixMat Scanner
RealCalc
StopWatch
That's it, like I say a sub-set of those on my N1 and all solid apps.
I normally listen to mp3 on the N1, but have not had time on the Galaxy yet, so it;s getting less use.

moa77 said:
The phone is now changed so, the history has gone! I'll do more screens tomorrow.
I am not sure what you mean by awake bar?
Click to expand...
Click to collapse
When clicking on the graph, there is a blue bar showing how often/when the phone is "awake", like in the screenshot I've attached.
I keep wifi and bt on all the time, as I did on my old N1. I am in the same place in the day as I was with that and will have same reception, which is not bad.
Click to expand...
Click to collapse
do you keep mobile data turned on? if so, do you keep 3G turned on, or just 2G?
App installed are not strange at all;
Adobe Reader
Android Task Killer
AL Voice Recorder
Amazon MP3
Astro
Google Authenicator
Compass
ConnectBot
Currency Converter
ixMat Scanner
RealCalc
StopWatch
Click to expand...
Click to collapse
Get rid of the task killer!
Other than that, don't see anything crazy... This battery life is really strange. When your screen is using less power than the 'Android OS' it shows you're really not using the phone much, but the phone is still tanking on battery life.

I'll post those screen shots for today when I get home tonight.
A few things I have noticed though. It seems to level off at midday, this is when i leave work and go home for an hour. While at home I will be on wifi. I do not connect to wifi at work.
Secondly, while at work I notice my data often changes between "3G" and "H", while the phone is in the same place. Probably 60% H and 40% "3G". It is not practical to turn "2G" only on, as I get the volume bug and the phone becomes unusable.
I am wondering if the data signal is draining it somehow? If so, how can I work around that? Like I said, I have a N1 before the GN which sat in the same place on my desk every day and had no battery drain issue at all.

I unplugged mine yesterday at 7.30am and it died at 9pm
I used the internet on/of all day made a couple of calls and about 50 texts, screen on time was about 4 hours.
Today i've used it in a similar manner and as of now (3pm uk) 7 and a half hours in its on 57%
The battery in this thing is better than my desire, granted, not much in it but it will easily get a normal user from one sleep to another
Stret

moa77 said:
App installed are not strange at all;
Adobe Reader
Android Task Killer
AL Voice Recorder
Amazon MP3
Astro
Google Authenicator
Compass
ConnectBot
Currency Converter
ixMat Scanner
RealCalc
StopWatch
Click to expand...
Click to collapse
No, it's strange you have a task killer on Ice Cream Sandwich. WTF? This isn't Eclair. Get rid of the damn task killer.

moa77 said:
A few things I have noticed though. It seems to level off at midday, this is when i leave work and go home for an hour. While at home I will be on wifi. I do not connect to wifi at work.
Secondly, while at work I notice my data often changes between "3G" and "H", while the phone is in the same place. Probably 60% H and 40% "3G". It is not practical to turn "2G" only on, as I get the volume bug and the phone becomes unusable.
I am wondering if the data signal is draining it somehow? If so, how can I work around that? Like I said, I have a N1 before the GN which sat in the same place on my desk every day and had no battery drain issue at all.
Click to expand...
Click to collapse
I'd say with 95% certainty it's just signal-hunting causing the drain. With my Fascinate at work, I'll easily lose 50% battery within a couple of hours, even if I'm not using it, while at home it'll last me between 15-20 hours before getting low. Easiest solution is to just buy another charger for work, and leave your phone plugged in whenever it's on your desk.

Don't like seeing android os at the top of that list! Does the nexus share some of the problems that have plagued the galaxy s line of phones, the android os bug!? :O
Sent from my GT-I9100 using XDA App

copkay said:
I'd say with 95% certainty it's just signal-hunting causing the drain. With my Fascinate at work, I'll easily lose 50% battery within a couple of hours, even if I'm not using it, while at home it'll last me between 15-20 hours before getting low. Easiest solution is to just buy another charger for work, and leave your phone plugged in whenever it's on your desk.
Click to expand...
Click to collapse
I kind of think you might be right. However, a phone that drains itself while doing absolutely nothing useful at all, is no use to me. I carry it about and am in and out the office though out the day. It would be unworkable to keep putting it on charge every time I come back in the room. I need a phone I can carry around for a working day without charging. My old N1 did. If this can't do it I'll need to get short of it and get something more practical. Seems ridiculous though.
Btw, task killer just got installed by default when I upgraded. All the apps that were on the N1 were installed when I signed in. Just never deleted it

Do you leave your Wifi on all the time even if you don't have Wifi signal available? Don't do that.
If you are too lazy to manage your data connection manually all the time, I highly suggest getting the app Juice Defender from the market. You can save the battery by setting a schedule for data connection and also it will disable your wifi automatically if your phone can't find a wifi spot it can connect to.
Sent from my Galaxy Nexus using XDA App

Chrono_Tata said:
Do you leave your Wifi on all the time even if you don't have Wifi signal available? Don't do that.
If you are too lazy to manage your data connection manually all the time, I highly suggest getting the app Juice Defender from the market. You can save the battery by setting a schedule for data connection and also it will disable your wifi automatically if your phone can't find a wifi spot it can connect to.
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Yes, I leave wifi and bt on. I want to be able to do this. I am not asking for it to run for days. 1 full day is all, I have not issue charging every night.
I could look at the juice monitor, however, it does not seem too much to ask to be able to get 1 full day from it of average use. To me, it seems perfectly reasonable to expect the device to work for a full day with all services running.
Is there any tool than can be used to prove that the signal hunting is eating the power? Currently is seem to be in the big pot called "Android OS"??

Well, I'm not gonna defend the phone. Leaving all radio processes on, especially when there is no signal available, is well known to drain a lot of battery since the phone uses more power to search for available networks than when it has a stable connection to one. If you leave it on in a place with spotty or no signal it will make the problem worse.
Juice Defender (the basic one anyway) is free and pretty much manages the connections for you and basically extends your battery life with minimal effort. Give it a go for a couple if days.
Sent from my Galaxy Nexus using XDA App

I strongly agree with chrono.
Sent from my SCH-I500 using xda premium

+1 with Chrono.... Turn off Wifi completely if you are not using it.

if you are a new android user, you should also check the settings of the phone:
hit *#*#4636#*#* in the dialpad.
this will bring up a menu. there you should try phone (i think, my n1 got stolen a while ago). there, you scroll down and there is a menu to adjust the preferred network mode.
if it's set to CDMA preferred, it will search for a cdma single. you just adjust it (i think) to gsm only. google will help you a bit here.

How can I track down my battery drain?

Leaving my OP in place, but I have rewritten the description with much more detail and pics here
http://forum.xda-developers.com/showthread.php?p=25401417#post25401417
I suggest skipping to there.
I am looking for general tips here. E.g., not asking you to diagnose my specific problem so much as give me ideas of what else to check or try.
Lately I have had unexplained (to me) battery drain. Yesterday I lost about 25 percent in an hour while the phone idled. It is not a constant thing, though. I can go an hour and loose 1 percent then loose massive amounts in the next hour.
Now, i have searched, but I have not found anything that applies to me.
I have:
Tried a different radio
Tried a different kernel
Reflashed my rom
Phone is entering deep sleep according to cpu spy
There are no unusual or excessive wake locks according to better battery stats
No apps are using a lot of battery.
I am in a low signal area at work, but putting the phone in airplane mode and dissabling background syn does not stop the drain.
Ideas?

might be your phone is loosing signal? i would check the battery stats in the settings menu to see if you have a poor mobile signal.

Zepius said:
might be your phone is loosing signal? i would check the battery stats in the settings menu to see if you have a poor mobile signal.
Click to expand...
Click to collapse
beren28 said:
I am in a low signal area at work, but putting the phone in airplane mode and dissabling background syn does not stop the drain.
Click to expand...
Click to collapse
So I don't think I can blame it on that.

Do you have any exchange sync on your phone?
Sent from my Galaxy Nexus using Tapatalk 2

can you give us screen shots of battery stats?

Herman76 said:
Do you have any exchange sync on your phone?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I do, and on reflection it is a possible culprit since I added it recently.
Didn't occur to me since it was producing no wakelocks and the battery stats did not showing as using much battery.
I shall turn it off for a bit and see if that helps. (unless there is some other way to test if it is the problem first.) I am off to the search button!

Zepius said:
can you give us screen shots of battery stats?
Click to expand...
Click to collapse
This is from yesterday when i set it down unused for about 90 minutes. The amount of wakes seems liek a lot, but it is similar to what i see when i have far far less drain, so I don't think that is the problem. I didn't get the app list screen, but out should screen as the only major drain with about 2 minutes.
I know it is shows poor signal strength, so immediately after that shot I put it in airplane mode, turned of sync, and rebooted. The battery continued to drain and graph had the exact same slope under those conditions. (Forget to get a pic though.)
Sent from my jitterbug using tapatalk.

System panel paid version with monitoring enabled is the best for tracking apps using CPU.

OK, still working on this.
To recap:
When the screen is off, and no apps are running I sometimes get inexplicable battery drain. This is occurring under conditions when I should be experiencing little or no drain at all. I say this becuase:
The screen is of and no bakground apps are running
the phone is NOT awake and IS entering deep sleep (as confirmed by cpuspy)
there are no unusual kernel or partial wake locks
there are no apps listed as using unexpected ammounts of battery
This is not a universal problem. The phone *often* behaves as expected. I can leave the phone off for an hour and see a 1% or 2% drain, and I am happy with that. However, sometimes, randomly, it goes nuts on my.
This graph from a few weeks ago shows what I mean. Look in the green box. The phone is sleeping, and the screen is off. The graph starts as a flatline, then, all of a sudden, it begins to drop precipitously.
Here is a graph that shows the battery dropping at the same rate whether the phone is awake or sleeping:
I have gone the following to try and narrow the problem down:
Done a completely fresh install of my Rom including a system wipe.
Tried two kernels (the aokp default and several relases of Franco's
Tried a different radio
Activated and installed a new sim card
I have come to suspect that the problem is network related. When the problem starts, sometimes going into airplane mode and back and/or toggling 2g only temporarily fixes the problem.
I suspect that something is happening with my connection to T-Mobile that keeps the network running and draining power. This is pure speculation, but it is all I can think of.
I installed juice defender (which I had not been previously running) and noticed the that, sometimes, it didn't turn of data when it should have. I also noticed the following two things happen:
I do not believe it is a rom problem, since if so, someone else would be reporting this. It might be an app problem, but if so the app is draining battery without a wake lock and while the phone is in deep sleep.
It is not exchange (as was suggested in this thread) since it continues when I ev my exchange account.
I have no idea what else to do or try.
Since it happens at random and takes a while to identify, uninstalling one app at a time to test for that could easily take months to narrow down a misbehaving app.
I know it is not a hardware issue since last month I got this:
That was with AOKP and Franco (earlier versions obviously)
I have google searched till my fingers bleed.
I am a long way form being an expert, and I suspect I may have overlooked something obvious.
Please, any thoughts??

Damn you definitely have a major issue and I don't know what it could be. But when my phone sleeps itstays dead flat with no awake bars, and drops 1% every 3 hours.

1. Calibrate battery
2. If you really wanna find the problem, install the rom with no mods or apps and run it and see if it still happens. Then add back each mod/app one at a time

derekwilkinson said:
1. Calibrate battery
2. If you really wanna find the problem, install the rom with no mods or apps and run it and see if it still happens. Then add back each mod/app one at a time
Click to expand...
Click to collapse
While I appreciate your effort, this is remarkable unhelpful for the following reasons:
1. "calibrating" the battery is a myth and doesn't actually do something. Even if it did, it would not explain the symptoms I have described. I have been around xda long enough to know it is the knee-jerk reaction to any battery question, but it is not relevant here.
2. Since the problem occurs at random, and sometimes takes hours to show up, (For instance, last night I charged to full and tried to catch it happening. For 4 hours nothing happened, it behaved perfectly. Then I went to bed and it immediately started to fall and was dead by morning) and since I have over 100 apps, your suggestion could easily take *over a year* to follow. Believe me, I have thought about it, but I started this thread hoping for ideas that would allow me to avoid it.
Here is that chart for last night.
I had about 1 hour and 30 minutes screen on time with 65% left when I went to bed. When I woke up, phone was dead.

RogerPodacter said:
Damn you definitely have a major issue and I don't know what it could be. But when my phone sleeps itstays dead flat with no awake bars, and drops 1% every 3 hours.
Click to expand...
Click to collapse
Mine often does that. But sometimes it doesn't. It is the fact that it happens seemingly at random that makes it so annoying and hard to track down.

I would replace the battery
One thing you haven't rulled out is that the battery itself is bad.
Have a friend you could swap with for a day, or at least long enough to see if the problem follows? If your battery drops on their phone that is also a good indication.

arw01 said:
One thing you haven't rulled out is that the battery itself is bad.
Have a friend you could swap with for a day, or at least long enough to see if the problem follows? If your battery drops on their phone that is also a good indication.
Click to expand...
Click to collapse
The thought has occurred to me, but unfortunately, no, I don't have a friend I can swap with. And really, since I have had the phone less than 3 months, the battery *shouldn't* be bad, but yeah, defective products happen.
If I cannot find any other cause I will likely order a new battery and see if that fixes it.

beren28 said:
While I appreciate your effort, this is remarkable unhelpful for the following reasons:
1. "calibrating" the battery is a myth and doesn't actually do something. Even if it did, it would not explain the symptoms I have described. I have been around xda long enough to know it is the knee-jerk reaction to any battery question, but it is not relevant here.
2. Since the problem occurs at random, and sometimes takes hours to show up, (For instance, last night I charged to full and tried to catch it happening. For 4 hours nothing happened, it behaved perfectly. Then I went to bed and it immediately started to fall and was dead by morning) and since I have over 100 apps, your suggestion could easily take *over a year* to follow. Believe me, I have thought about it, but I started this thread hoping for ideas that would allow me to avoid it.
Click to expand...
Click to collapse
1. yes battery calibration does make a difference.
2. ok, so an app can't run a process at random? especially when you have "over 100 apps"? Run the rom stock and see if it still happens, or even run the stock rom/kernel. if you don't want to try this then why are you asking for suggestions? christ

derekwilkinson said:
1. yes battery calibration does make a difference.
Click to expand...
Click to collapse
You are incorrect. But, in any case, I DID calibrate the battery just to cover bases in the case that I was wrong.
2. ok, so an app can't run a process at random? especially when you have "over 100 apps"?
Click to expand...
Click to collapse
We'll of course it can. That is kinda my point. If I go one app at a time waiting for it to "run a process at random" I am talking literally MONTHS of testing. I would have to wait many hours, if not days after installing or uninstalling an app to be sure whether or not it made a difference, then move on the the next. This is simply not an option. I started this thread in hopes that a realistic and doable solution might exist that I was unaware of.
Run the rom stock and see if it still happens, or even run the stock rom/kernel. if you don't want to try this then why are you asking for suggestions? christ
Click to expand...
Click to collapse
I am asking because there may be a solution that I am unaware of that doesn't require me to put my entire life on hold for months. It is possible that there is no such solution, but I asked in case there was one.
Sorry to have put you out so much.

You mentioned you recently installed exchange sync. Did turning off sync remedy this or have you not tried disabling all sync features?
One other thing to check is the background data usage of your apps. You'd find this under 'data usage' and make sure you enable the wifi tab so you can see data usage on wifi.

skadebo said:
You mentioned you recently installed exchange sync. Did turning off sync remedy this or have you not tried disabling all sync features?
when i did a complete quote and re flash i did not setup the exchange account, but the issue continued.
One other thing to check is the background data usage of your apps. You'd find this under 'data usage' and make sure you enable the wifi tab so you can see data usage on wifi.
Click to expand...
Click to collapse
I'll check that out. Thanks.
Sent from my jitterbug using tapatalk.
Click to expand...
Click to collapse
Click to expand...
Click to collapse

My battery also drains at a rate similar to yours however I'm on the CDMA version. Hopefully you can figure out what's going on with yours.