Develop Bugs

Incredible Battery Issue!!

I put the leaked 2.2 update onto my phone and it has been great. I have only had one issue with it thus far. Starting yesterday my battery life plummeted drastically out of the blue. It seems like it came out of thin air. There is no water damage or anything. I am avoiding doing a data reset. Does any one have any other suggestions?

Is your phone staying constantly awake? Is there an App causing it stay running? Are all of your apps up to date?
I've been on a 2.2 ROM for over a month and I have great battery life, even with my overclocked kernel.

TheWhiteBandito said:
Is your phone staying constantly awake? Is there an App causing it stay running? Are all of your apps up to date?
I've been on a 2.2 ROM for over a month and I have great battery life, even with my overclocked kernel.
Click to expand...
Click to collapse
I use Advanced Task Killer and my phone goes to sleep after 1 min. 2.2 Worked perfect with great bettery life for about 2 weeks. But last night everything went downhill. It maybe an App i downloaded? but i looked in my apps and things seemed to look normal.

Do you have the task killer automatically set to kill after a certain amount of time? If you do you may be killing processes only to have them be restarted right away by android system, then killed again, restarts...and so on. That will kill your battery like crazy! To be honest, try going 24 hours without your task killer and see what happens, I noticed an improvement. The way android manages it's processes there is no need for a 3rd party task killer. Also try the KingzKernel's they are fantastic with battery life.
Why Task Killers are not needed.http://geekfor.me/faq/you-shouldnt-be-using-a-task-killer-with-android/

tcberg2010 said:
Do you have the task killer automatically set to kill after a certain amount of time? If you do you may be killing processes only to have them be restarted right away by android system, then killed again, restarts...and so on. That will kill your battery like crazy! To be honest, try going 24 hours without your task killer and see what happens, I noticed an improvement. Also try the KingzKernel's they are fantastic with battery life.
Click to expand...
Click to collapse
It is not set to auto kill. I just kill things when i feel i need too.

msimmons814 said:
It is not set to auto kill. I just kill things when i feel i need too.
Click to expand...
Click to collapse
K, regardless, uninstall it for 1 day. U may notice a decrease in it benchmarks but ur actual performance will not change. I was a skeptic too, just give it a shot.
Sent from my ADR6300 using XDA App

I'm having the exact same issue. I flashed the virtuous 2.2 rom. The battery is dropping waaay too fast. This needs to be figured out

anothen said:
I'm having the exact same issue. I flashed the virtuous 2.2 rom. The battery is dropping waaay too fast. This needs to be figured out
Click to expand...
Click to collapse
I'm having the exact same issue. I just flashed SkyRaider 2.5.2 the other night and Radio 2.15.
The problem I'm having is that my charge is taking almost 4-5 hours to charge when it use to only take a couple hours. Also, my battery is draining QUICK.
I just clocked it and I went from 100% battery after a 12-hour charge to 93% in about five minutes.
PLEASE, someone help with this issue.

I never had any issues with the original 7/28 leak (or whatever the date was), and once having the bugs worked out, never bothered with the 8/1 leak. I did the 8/26 leak as soon as it came out and was plagued with charge times exceeding my 7-hour per day sleep schedule, and battery life that would drop drastically with the screen off. I literally went from 40% to 5% in a matter of two hours with my phone sitting on my desk, screen off. I used nandroid restore to go back to the 7/28 leak i had backed up. I'm not sure where the bug is, but I hope Verizon/HTC release this update soon, so the OTHER 95% of Incredible owners can start *****ing too. Then maybe something will get done.

I tried bump charging this morning and it made no difference whatsoever. Withing 2 hours I'm at 35%. No Facebook syncing or really anything syncing for that matter... Just a crappy battery issue. Tried different Kernels and no difference which leads me to believe it may be Froyo or the Rom I'm using which is the virtuous Rom but that doesn't make sense....

I'm surprised this has not been addressed on a much larger scale within the XDA community. There is no way anyone could enjoy their Dinc with that much battery drain.
I am using the 3500 mAh battery and with stock phone and no root I was able to charge my phone in about an hour and could get nearly 2 days with heavy usage. Now I'm not sure I can even get 12 hours, but I haven't fully tested that theory yet.
My plan today is to do a full charge (Which will be done in a matter of minutes) and then I am going to do some clocking to see exactly how long it takes to discharge.
Regardless, why is this not a major concern in the community? I only see a few posts relating to it.

Ok, so I think this has been brought up before.
When my phone is at a complete IDLE (89%), my CPU is rocking out at 900+MHz.... I think this is what is causing my severe battery drain. Can any developers respond to this or can someone else advise? My sister who uses her stock phone with no root, etc is idling between 245MHz and 320MHz.
My battery is dropping way to quick and this has to be the answer. Please help. Thanks!
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Thing is...
If you're on this forum, you're probably a constant tweeker. The so called "battery issue" is all over the place depending on who you talk to. I wrote "Making Your Droid's Battery Incredible" over at my website, but essentially you need to figure this out yourself. Battery usage depends on so many things like the programs you run, the kernel you're using, and the battery you have (and the condition of said battery). If there were a uniform problem, it would be much easier to identify.
Oh, and if you're humming along at 900mhz while idle, try SetCPU.

Battery Life dreadful after ITL41F

Hi Everyone,
I was wondering whether anybody else has experienced this side effect of the ITL41F update? My battery life has been really really good, much better than that of my HD7. I was really chuffed with it. Along comes the ITL41F update, and since then the battery will drain itself on standby. Nothing has changed on my phone. I have not installed any new apps or made any settings changes (such as sync frequency, etc). So the only difference is the ITL41F update.
To give you an idea, If I charge the phone in the late afternoon, and then pretty much leave it alone, by the morning it will have gone down to 15% battery or less. This morning I plugged it in again, and now it's down to 50%. And I only sent a single txt message and didn't do anything else on the phone. This is properly rubbish.
Anybody know where I can report this bug to Google/Samsung?
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Cheers Guys!
Mich

You have a lot of awake time without your screen been on which seems a little strange.
Sent from my Galaxy Nexus using Tapatalk

I would say your mobile signal is using up a lot battery. when it is yellow that means its weak, and grey means no signal. Since this is the main 2 colours on your chart I would say this would be the main reason for your battery drain

Matcarroll said:
You have a lot of awake time without your screen been on which seems a little strange.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
What he said^^^
Something is keeping ur phone awake
Sent from my Galaxy Nexus using xda premium

How would someone go about improving that? My mobile connection is mostly yellow as well. Could APN settings help that? Or would I have to go about flashing a different modem and all that
Sent from my GNex

alias3800 said:
How would someone go about improving that? My mobile connection is mostly yellow as well. Could APN settings help that? Or would I have to go about flashing a different modem and all that
Click to expand...
Click to collapse
Are you seriously asking that question?
You improve your mobile signal but getting your network provider to install another mast, or switch to a different network with better coverage in your area.
If you could improve signal with APN settings or flashing a different radio it would be done like that from the factory!

WEll, I have a LG Optimus One and use franco kernel with it, and am soon buying a GN because he develops for it too, SO:
FLASH FRANCO KERNEL!
DOnate him a beer before and ten after the WOW-experience you'll get when you realise 4 days later that your battery is only 10% becuase of the popup.
And now read my words again.
It's the best option!

Your phone was awake for more than 50% of the time. If you really didn't use it, there's most likely a rogue app which is preventing phone from going into deep sleep.
Use an app like System panel to locate the culprit.

nevermind - delete me

Thanks for the fast replies guys, it's much appreciated! =)
What I find puzzling is that absolutely NOTHING has changed on the phone, apart from the update. So if there was a rogue app that was consuming the battery, it should have exhibited that behaviour before the update, right?
I will check with system monitor though, to see if I can spot something. The strange thing I noticed is that the OS is consuming *more* battery than most other functions. Even on standby.... weird!

After finally getting the patch I can't say the battery has been worse. In fact it seems to be better. Although I think that is down to the fact I've been through a few charge cycles now.

click on android OS, and check out the awake and CPU times. The cpu time should be a fractions of the time awake.
example, my phone has been on this charge for 22 hours (still 36% battery left.. didn't use it too much this charge). the leading battery drain is screen at 51% (2.5 hours awake time), and the 2nd leading item is Android OS which has the following:
CPU Total - 18m 53s
Keep Awake - 4h 46m 9s
I'm just curious on why your CPU total was in relation to the awake time by Android OS.

Mines great.
Sent from my Galaxy Nexus using xda premium

its funny how many similar theads appear everytime a phone gets updated. And most of them all go down to user error.
Just saying. my Gnex is fine after 11F update, OP should probably do a wipe

Guys, I'm not ruling out 'user error', but at this moment in time I cannot see what I could have possibly done to cause it. I have purchased System Panel on the Market and I'm running it in monitoring mode to see if it can shed some light on the issue. Strangely, 'Cut the Rope' and 'Exchange' are running constantly and as a service. Not necessarily consuming CPU while the phone is asleep though. Just though it would be strange for a game to be running as a service? Must be a reason for it....

Ask the developper of "Cut the Rope" why does it need to run that way. Exchange is run as a service because you probably need it.
Anyways, you can try a clean flash with stock ITL41F. But i'd say apps are to blame
Sent from my Galaxy Nexus using Tapatalk.

do you lose root if you update?

tommy96814 said:
do you lose root if you update?
Click to expand...
Click to collapse
Yes, but it's easy to do Superboot again.

mictho100 said:
Guys, I'm not ruling out 'user error', but at this moment in time I cannot see what I could have possibly done to cause it. I have purchased System Panel on the Market and I'm running it in monitoring mode to see if it can shed some light on the issue. Strangely, 'Cut the Rope' and 'Exchange' are running constantly and as a service. Not necessarily consuming CPU while the phone is asleep though. Just though it would be strange for a game to be running as a service? Must be a reason for it....
Click to expand...
Click to collapse
Did you factory reset after the update? If not I realize it sucks to do, but.....that's the road I would venture down.....have yet to own a Samsung that it wasn't almost mandatory to do. Always a battery and sleep issue.
Sent from my SAMSUNG-SGH-I777 using XDA App

No problems here
I'm using this phone on t mobile usa on my battery life is the same just like before the update.

Getting GREAT battery life with new ROM (Lost just 20% in 16 hours)

See here: http://forum.xda-developers.com/showthread.php?t=1361108
Lost just 20% in 16 hours. This is of course with JuiceDefender and airplane mode scheduled to run over night. But it's still impressive as we used to get battery drains even at times phone was supopsed to sleep and AirPlane mode on.
My baseband is UGKK7, but that's not what cured it, I had this baseband installed days earlier and battery drain was awful.
In my case it appears all battery problems are cured:
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What's your standby current draw? In my HD2 android, I had about 4-9ma. But in Galaxy Nexus it's about 19-40ma which is pretty high. Judging from your screenshot, yours is 16ma in standby?

Possibly, I have no idea. Nexus is known from high default cpu voltage, maybe thats that or maybe it's my apps waking phone every now and then to check things, for example LED light notification app or Juice Defender.
Anyway, I'm pretty happy now, might tweak it some more when I have time, but it's now at the same level as my old SGS2, I'd say a bit better (I think I had 5% night drop on AirPlane mode on SGS2, but again it depends on apps).

luffyp said:
What's your standby current draw? In my HD2 android, I had about 4-9ma.
Click to expand...
Click to collapse
Just checked: it was constant -5mA throughout the night.

Have you, knowing you want to see good results, un-knowingly played less with your phone on this rom?
Sent from my Galaxy Nexus using xda premium

Tjotte said:
Have you, knowing you want to see good results, un-knowingly played less with your phone on this rom?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
That's not it, I know battery will go down when I actively use it. What I noticed is that I get great results when phone is idle. This didn't happen before, you would see battery drain even when idle at night in AirPlane mode. This means light use should also give better battery performance than before, I will be testing that.
Sent from Galaxy Nexus using Tapatalk

This is with Google+ and Facebook signed in. I just disabled all notifications from these apps and they appear to function properly, do not keep awake when not run.

schriss said:
This is with Google+ and Facebook signed in. I just disabled all notifications from these apps and they appear to function properly, do not keep awake when not run.
Click to expand...
Click to collapse
I dont know what I did but while IDLe, I get about 1% drain per hour, thats on 3G, sync on (gmail, google+, etc), no juicedefender or airplane mode.
I only tested it overnight, when Im sleeping, notice the ZERO wake locks and crappy signal; unbelievable!
Disclaimer: this was while I was sleeping, NO usage. Battery obviously goes down much quicker once the screen is on, but for idle time, I am content!

schriss said:
That's not it, I know battery will go down when I actively use it. What I noticed is that I get great results when phone is idle. This didn't happen before, you would see battery drain even when idle at night in AirPlane mode. This means light use should also give better battery performance than before, I will be testing that.
Sent from Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
ok, thank you keep on testing and keep us informed, always nice to get some info! Merry X-mas!
Sent from my Galaxy Nexus using xda premium

thats great to see how long it lasts while youre not using the phone... but how about while youre actually using it?

voxigenboy said:
thats great to see how long it lasts while youre not using the phone... but how about while youre actually using it?
Click to expand...
Click to collapse
For real... All these people posting up 15-20 hours of battery by putting it on airplane mode overnight is just useless info. Especially when most people put it on the charger overnight
Sent from my Galaxy Nexus using XDA App

Happy! said:
For real... All these people posting up 15-20 hours of battery by putting it on airplane mode overnight is just useless info. Especially when most people put it on the charger overnight
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
It is not useless info. Previously, when putting in AirPlane mode and not using the phone at all we would see big battery drain. Now we don't. This is to proove that now the phone actually goes to sleep whenever I don't use it. This is proper testing before and after applying one change.

voxigenboy said:
thats great to see how long it lasts while youre not using the phone... but how about while youre actually using it?
Click to expand...
Click to collapse
I will know next time I go to work. But since I never use it for all these 8-10 hours straight, I should have better battery, because whenever I will put the phone away, even for another 15mins, battery will stop dropping like it used to.
In other words, it will most likely still drop as usual while actively using the phone, but in overall I should get more battery because of much more efficient idle times.

[IMPOSSIBLE] Battery drain while the CPU is in Deep Sleep [BetterBatteryStats]

Hi,
i managed to get my standby drain on unrooted stock 4.2 to 0,5% (WIFI) to 0,8% (HSDPA) per hour with disabling some stuff that i dont ever need.
Market notifications
Latitude
Google apps like Currents, Play movies, Play books etc...
This is great, but sometimes after usage it still felt like the battery keeps draining as the phone is in use with the screen turned on.
What now happenend is really weird:
I did set a custom reference in BetterBatterySats and left the phone on the table for 1 hour. No unneccessary apps running in the background. But it drained 7% in this hour. As you can see in the screenshots, the device was in Deep Sleep most of the time and there are no noticeable Partial Wakelocks.
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But how the heck is it possible that i lost 7% in one hour while deep sleeping? Is there any sort of app that can tell me in this particular case what went wrong?
Any info is highly appreciated.
Best,
ras

k9 mail seems to be one of the culprits

nope. it polls 2 accounts every hour anf therefore uses cpu time of approx. 0,4%. thats even even the case in that "awesome battery life" area seen on the last screengrab. a total of 15 sec. cpu time can't hurt that much.
Gesendet von meinem Galaxy Nexus mit Tapatalk 2

This may sound silly but did you try just to restart the phone?

linh1987 said:
This may sound silly but did you try just to restart the phone?
Click to expand...
Click to collapse
im pretty sure that this would fix it.
but because this happens from time to time (though this is the first time i can document it because auf BBS) i want to know whats the cause of this. it is pretty annoying to leave a phone on the desk and to find it drained empty a few hours later. this would have happened if didn't pick it up after one hour.

I get a similar problem too. Only way to clear it is a power down and restart.

Well, first of all, can we really be sure that those 7% aren't within the battery measurement margin of error?
Considering of course stuff like temperature, sensor's reading delay and other electrical/chemical/whatever stuff the battery may go through after heavy draining like you show in the graph?
I really don't think that % stats are that accurate, but that might just be me.
Some guy disassembled his Nexus S and measured the energy drain with accurate reading devices. Maybe someone should do the same on the Galaxy Nexus. Because if one software says there's no cause of drainage and another say there was some drain, maybe one should confirm which software should we rely the most.

VuDuCuRSe said:
Well, first of all, can we really be sure that those 7% aren't within the battery measurement margin of error?
Considering of course stuff like temperature, sensor's reading delay and other electrical/chemical/whatever stuff the battery may go through after heavy draining like you show in the graph?
I really don't think that % stats are that accurate, but that might just be me.
Some guy disassembled his Nexus S and measured the energy drain with accurate reading devices. Maybe someone should do the same on the Galaxy Nexus. Because if one software says there's no cause of drainage and another say there was some drain, maybe one should confirm which software should we rely the most.
Click to expand...
Click to collapse
maybe it happens because the voltage still gets down because of heavy use before. if this is the case the drain should stop at some point and the battery should not die completely.
i will def. keep an eye on this.

Its the fundamental problem with android and our battery technology.
One of two things need to happen, Google needs to get their act together (think project butter but with battery) or the OEM's need to start providing better battery technology. Its ridiculous that over the past 3 years there have been NO significant battery technology improvements. Yes, processors are becoming more efficient and using less power, but that is only going to take us so far. **** needs to happen and Google needs to press it.
Sent from my Galaxy Nexus using xda app-developers app

I am having the same issue... Huge battery drain happens in my case at the battery range of 0%~20% and 80%~100%.
Sent from my Galaxy Nexus

I am now using the latest franco kernel v335 and I think it somehow reaolve the issue. I will monitor and report.
Sent from my Galaxy Nexus using xda app-developers app

Aokp and lean kernel battery life

I've gotten some awesome battery life with AOKP mr1 build 6 and Lean kernel 6.3.1 lately. Just thought I would share incase anyone else is looking for awesome screen on time. This is with stock GSM gnex battery.
Also, anyone know why Google services is so high on the list. It never used to be a month ago and I don't do anything different. Anyone else's Google apps draining more lately?
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Sent from my Galaxy Nexus

These kind of threads are discouraged. There are at least a couple dozen different combinations achievable and there is no reason for a thread for each. Just enjoy what you have.
Battery stats is always a relative statistic. You're just using less power from other areas.
Learn to search.

063_XOBX said:
These kind of threads are discouraged. There are at least a couple dozen different combinations achievable and there is no reason for a thread for each. Just enjoy what you have.
Battery stats is always a relative statistic. You're just using less power from other areas.
Learn to search.
Click to expand...
Click to collapse
Not sure why you feel the need to have a **** response when I am trying to share my findings with this rom/kernel combo. I have tried many different roms and kernels and haven't had battery life nearly this good and thought someone else might be interested too.
Learn to not be a ****.
Sent from my Galaxy Nexus

When I last visited XDA yesterday or the day before I was ranting about Android's battery life. This thread bragging about 3 hours screen on time is the perfect example! OP not trying to change the subject or take away from your battery pride, but.. This is a joke. The phone stayed on for three hours and this guy is so happy about it he started a new thread. Android has a BIG problem, or maybe the more accurate statement is the companies who manufacture Android devices do. Am I the only one who feels this way!? (growing more and more bitter about it each day that it goes ignored)

WiredPirate said:
When I last visited XDA yesterday or the day before I was ranting about Android's battery life. This thread bragging about 3 hours screen on time is the perfect example! OP not trying to change the subject or take away from your battery pride, but.. This is a joke. The phone stayed on for three hours and this guy is so happy about it he started a new thread. Android has a BIG problem, or maybe the more accurate statement is the companies who manufacture Android devices do. Am I the only one who feels this way!? (growing more and more bitter about it each day that it goes ignored)
Click to expand...
Click to collapse
Definitely one of my biggest gripes about Android is the battery life. I would really like to not charge my phone everyday. I don't like the bulk of extended battery and there seems to be no end in sight.
Sent from my Galaxy Nexus

I for one appreciate you reporting your battery life - probably didn't need its own thread (sharing the AOKP development thread would have been fine) but its good to give other users an idea of the kind of performance you're getting from your ROM/Kernel combo.
In regards to Android and battery life... Granted, its not like my Blackberry devices of 5 years ago, BUT, the devices are capable of much more. I charge my phone every night and sometimes even need a bump charge to make it through the day. Between my car charger and my office, I'm never in a pinch for some extra juice.
The way I look at it, if you want a car that puts out 500 horsepower, can't expect it to give you 40 MPG too.
Just my two cents.

gbarayah said:
The way I look at it, if you want a car that puts out 500 horsepower, can't expect it to give you 40 MPG too.
Just my two cents.
Click to expand...
Click to collapse
Sticking with the analogy.. The problem is most of the cars being manufactured, and all of the cars worth having, are 500 horsepower now. But very few offer a larger gas tank, which would not be hard to do.

We need batteries like that of galaxy note 2, which is 3100 mah in a slim form.

Cool story OP.
This mind of threads appear almost once a week. We all know battery life is not that good for GNex. To gain 30min more battery life by trying so hard simply is not worth it.
Get an extended battery, 6 hours screen on time, problem solved.
Sent from my Galaxy Nexus using xda app-developers app

OP since you live only 15 minutes or so away from me, and I am on Verizon, have you done any overclocking/underclocking? Undervolting? What apps are you using? Getting great screen on time can only get you so far depending on the apps you use.