Develop Bugs

Battery Drain overnight

I don't know what is wrong with me (I know this is something I'm doing wrong), this happens EVERY time I have an android phone.
I think I'm not closing an app or something and the battery drained overnight, it happened when I had a G1 and an X10... Anyone experienced that?
Is there a way to close apps properly on Android? I don't want to have to install something to manage whether my apps are open or close, I just want them to close when I'm done with them....

RLP06 said:
I don't know what is wrong with me (I know this is something I'm doing wrong), this happens EVERY time I have an android phone.
I think I'm not closing an app or something and the battery drained overnight, it happened when I had a G1 and an X10... Anyone experienced that?
Is there a way to close apps properly on Android? I don't want to have to install something to manage whether my apps are open or close, I just want them to close when I'm done with them....
Click to expand...
Click to collapse
Internet.. guessing you dont use it at night so try this.. 2 methods of doing the same thing 1) +/Widgets/Settings/Mobile Network and just toggle that whenever you don't need to use 3g connection, or before you go to bed. 2) Hold Power Button/ Mobile Network and make sure it says Connet to Internet is OFF..
for me, this gives 3 days of battery (also doing some under clocking at night ) loving the phone!

Ive experienced high battery usage on a HTC Desire, a Google nexus one and now on a Samsung Captivate. It always seems to be Android OS and the usage is even higher than display which is ridiculous.
It happens on and off and its really quite annoying. I always think Ive found out what causes it...and then it happens again!

I have to ask the question, but have you regularly been using the same 3rd party applications with each of the phones?
Regards,
Dave

foxmeister said:
I have to ask the question, but have you regularly been using the same 3rd party applications with each of the phones?
Regards,
Dave
Click to expand...
Click to collapse
I realize the logic behind the question you're asking. Ive noticed android os battery drain without any apps installed (i.e. stock only). It doesnt seem to happen on a regular basis though.
At one time, I was pretty confident it was a generic charger, another time after usb connections and even something associated with google push services.
Not really sure what it could be. Its like those experiments at university where there are way too many variables, so the only option is to sit down and data log until a trend emerges. Frankly, its a phone and its too much time to actually sit down and do that. (Yes I know im lazy )

2-4% battery drain is normal at night, if you have airplane mode on or at least 3G / WiFi data connection off. The drain should be between 2 and 5 mA for most of the time.
There are a few battery related threads, try comparing those results with yours, we did some extensive testing too in one of them.
To pinpoint your problem try one or a combination of these three tools: SystemPanel, Power Tutor, Current Widget (maybe one each night). Let them monitor your system overnight and see what's the result.
I have recently done testing for 4 nights, two with SetCpu underclocking profile at screen off, and two without it. There was no appreciable difference between the four runs.

i use an App to turn on airplane mode over night, i stared with an app called "sweet dream" [Link = http://www.androidzoom.com/android_applications/tools/sweet-dream_jtvk.html?nav=googleDownload ]
and now use timeriffic [link = http://www.androidzoom.com/android_applications/tools/timeriffic_tdl.html ]
it really does help the battery life.

Or just plug it in overnight? This seems to work fine for me!!

captainsensible2002 said:
Or just plug it in overnight? This seems to work fine for me!!
Click to expand...
Click to collapse
Hell yeah, plug it in and turn airplane mode on
Sent from videotext, using the remote

Have you tried conditioning the battery?

Calibrate your battery then reset your battery stats. It could help. If you flashed a rom while charging or during the first boot screen on first boot or on USB, battery calibration will need to be performed. It made a massive difference for me after multiple flashes.
http://forum.xda-developers.com/showthread.php?t=755903

Thanks!
I decided to install Advanced Task Killer, all is good now, must have been some app draining it.

Sleep of death

Is anybody else having issues with their ET going to sleep and you have to pull the battery to get it come back up? I thought it might have been my setcpu settings. So I cleared them and uninstalled it. I tried the midnight rom and the starburst rom. I tried the stable and exp LosKernel. None of these got rid of this issue for me. Randomly through out the day I can try to wake the phone up to use it and nothing happens. After a minute or two I have to pull the battery. I am currently testing the stock kernel.

Thats weird, the only time that happened to me was when i had setcpu, and i tried putting "screen off" value to 200/200.
You should install setcpu again, and make screen off value 500/500, and if you dont have the issue, then try making the value 200/500, if you dont have the issue at this value, then leave it as is.
Sent from my SPH-D710 using xda premium

I agree it is weird and I am not sure why it is happening. If it stays okay with the stock kernel then I may wipe and try the viperrom.

Yep happened twice the other day... Im on stock rom with lost kernel..roooted i put setcpu to 200/1200 after waking my screen for a minute used google came back 3 min later and phone was either off or wouldnt wake .. I had to pull battery twice.
I setcpu up to 1200/1200 never happened again.
This is a nice phone but very touchy.. Seems alot weird things goin on for some Et users.
Worst of all for this phone is Los or just weak /radio signal in general ..which is a samsung issue.
Sent from my SPH-D710 using XDA Premium App

Why people still insist on screen off profiles amazes me. When you hit the power button to wake it - the phone is stuck at 200MHz, you do realize this? If snything else is going on while it's stuck at 200 or SetCPU doesn't sample the phones state fast enough, it never gets out of 200MHz and locks up. Just like any other processor does when you overload it.
All the background processes going on even when the screen is off and somebody thinks setting the CPU max to 200MHz is a good idea? That's just asking for it. Not to mention the screen off profile is known to cause this issue. Notice how Virtuous, Viper, Cyanogen, and many other developers don't use one in their native OC daemons? There's a reason why. The phone sleeps just fine without it, just let it do it's thing.

Don't use offscreen profiles (the kernel is smart enough) and avoid using task killers, as those are likely to be the second leading issue.

I am having the issue even with setcpu uninstalled. I still have not found out what is causing it.

ElAguila said:
I am having the issue even with setcpu uninstalled. I still have not found out what is causing it.
Click to expand...
Click to collapse
Just wanted to throw this out there: beware mislabeling this problem. The setcpu issue causing the phone the permanently lock up and require a bat pull is one issue, yes; slow screen wake up is a different issue. Sometimes if you hit the power button, the screen will not wake up on the first try. If you wait a few seconds and push in the button again for a second or so, the screen almost always will come after. Coming from a mo-pho, I actually had the stupid no-wake problem requiring bat pulls, so I'm extremely paranoid about by e4gt doing this -- but it really has been good about eventually waking up every single time...just try my instructions and see if it works for you, too.
Again, though -- setcpu issues may be a different problem entirely.

did you reinstall a rom and try it again or did you simply just unistall setcpu and try it. I say this because I had an issue when testing setcpu and my system still kept my cpu setting even after I unistalled the app. I had to reinstall the rom after wiping to get it to run properly again.

I think I have found the issue. I did a factory reset and installed the rom but I am getting an error now that is basically saying it can't read the internal storage card. So I think there are some actual hardware issues going on that need to be looked at by sprint.

how often has the sod been happening? I think i got it yesterday, but not sure.

Do you use setcpu?
Sent from my SPH-D710 using Tapatalk

This thread seems a little slow- has there been a solution found or are we isolated cases?
I reflashed the phone back to rooted stock and then flashed Blazer 4.1.
Got 2 SODs in the past week- one just a few minutes ago.
I tried calling the phone from another line, it rings but the screen is black and thus I couldn't answer it.
Power button and vol buttons work fine.
I had to powerdown and reboot.
Getting kinda frustating.

[INFO]Improve battery life when idle

Hey guys, I was getting terrible battery life when the phone is idle. I looked into it to see what was going on. First off, I am on the stock rooted deodex'd ROM that scrosler posted. The biggest problem was an app I installed called Light Flow Lite, it controls your LED. It had over 6 hours of wakelock today. Removed it, not worth it at all.
The second thing I found that was interesting was after that, the phone STILL wasn't hitting deep sleep. I poked around in BetterBatteryStats and didn't find anything in there that would explain that. I then ran a "top" (in terminal or adb shell, type top -m 5 -t). Everything looked normal, nothing crazy. But I turned the screen off and let it run for a few seconds. I got a massive spike in CPU (anywhere from 15-35%) for system_server with the thread "WindowManagerPo" (which is likely short for WindowManagerPolicy).
I did some searching and it turns out that there is a bug with auto rotation that causes this. Essentially, the sensors don't stop looking for orientation change when the screen is off. I found reports of this in the Nexus S forums, GS3 forums, etc. This leads me to believe it is a Samsung kernel issue, since that's the least common denominator when it comes to the phones that had this issue. If you don't use auto rotation, you probably aren't encountering this issue (but keep reading for some good info below!) But I use auto rotation, how can I fix this?
Download an app called Auto Rotate Auto Lock. This app will turn off auto rotation when your screen turns off and enable it back when you turn the screen back on. This looks like this should really help to combat this bug and it handy for people like me who like auto rotation but don't want to have battery life suffer from something as stupid as this. I have verified that my phone now does enter Deep Sleep easily, and it hadn't hit that all day!
I also recommend an app called CPU Spy Plus (XDA thread). This app shows some very valuable information about your processor. You never want to see "Deep Sleep" under Unused CPU States as this means your phone isn't sleeping and is wasting battery!
It would also be good to download BetterBatteryStats (XDA Thread). This will help you nail down battery drain that you won't see in the stock Battery graph found in Settings. Things or importance are Partial Wakelocks and Alarms.
Monitoring these apps can really help you to increase your battery life on your phone. If anyone else is having bad battery life when idle, please try this out. I'm sure this will help you Feel free to ask questions, I will try to answer them as best as I can!

I have autorotation turned on but not the face orientation sensing. I haven't noticed a significant battery loss, at 19 hours with 10 left according to battery spy, but I'll give this a try and see if it increases it any.

i'll give it a shot. i was wondering how at work it would drain 2-4% an hour but at home with a crappy signal i'd only lose 6% all night.
at work it's in my pocket and at home it's stationary.

madsquabbles said:
i'll give it a shot. i was wondering how at work it would drain 2-4% an hour but at home with a crappy signal i'd only lose 6% all night.
at work it's in my pocket and at home it's stationary.
Click to expand...
Click to collapse
I have noticed Google Talk drains batteries when your signed in. By default your phone will sign in. If you don't use TALK, sign-out of the app and you will see increased battery life. Your wont ping the internet as much which saves batteries.

Thanks viperboy I took your suggestion and so far it seems to be helping.

I haven't tried that app yet, however I have definitely noticed an improvement in battery life by disabling auto rotation. Thanks for the info.
THIS NOTE 2 IS SENT FROM A GALAXY WHERE SAMSUNG SPRINTS TO THE TOP, AND JELLY BEANS EAT APPLES!!!!

after a bit of troubleshooting i found that battery monitor widget pro was the cause of my drain. after removing it i went from 2 to 3% an hour to 3% overnight. this really sucks as i love the info bmw colleects. this is the only device i have that suffers drain from the app.

Thanks for the info. I have been losing % 15 battery every night while I'm asleep and was wondering why
...from a Galaxy Note II

-viperboy- said:
Hey guys, I was getting terrible battery life when the phone is idle. I looked into it to see what was going on. First off, I am on the stock rooted deodex'd ROM that scrosler posted. The biggest problem was an app I installed called Light Flow Lite, it controls your LED. It had over 6 hours of wakelock today. Removed it, not worth it at all.
The second thing I found that was interesting was after that, the phone STILL wasn't hitting deep sleep. I poked around in BetterBatteryStats and didn't find anything in there that would explain that. I then ran a "top" (in terminal or adb shell, type top -m 5 -t). Everything looked normal, nothing crazy. But I turned the screen off and let it run for a few seconds. I got a massive spike in CPU (anywhere from 15-35%) for system_server with the thread "WindowManagerPo" (which is likely short for WindowManagerPolicy).
I did some searching and it turns out that there is a bug with auto rotation that causes this. Essentially, the sensors don't stop looking for orientation change when the screen is off. I found reports of this in the Nexus S forums, GS3 forums, etc. This leads me to believe it is a Samsung kernel issue, since that's the least common denominator when it comes to the phones that had this issue. If you don't use auto rotation, you probably aren't encountering this issue (but keep reading for some good info below!) But I use auto rotation, how can I fix this?
Download an app called Auto Rotate Auto Lock. This app will turn off auto rotation when your screen turns off and enable it back when you turn the screen back on. This looks like this should really help to combat this bug and it handy for people like me who like auto rotation but don't want to have battery life suffer from something as stupid as this. I have verified that my phone now does enter Deep Sleep easily, and it hadn't hit that all day!
I also recommend an app called CPU Spy Plus (XDA thread). This app shows some very valuable information about your processor. You never want to see "Deep Sleep" under Unused CPU States as this means your phone isn't sleeping and is wasting battery!
It would also be good to download BetterBatteryStats (XDA Thread). This will help you nail down battery drain that you won't see in the stock Battery graph found in Settings. Things or importance are Partial Wakelocks and Alarms.
Monitoring these apps can really help you to increase your battery life on your phone. If anyone else is having bad battery life when idle, please try this out. I'm sure this will help you Feel free to ask questions, I will try to answer them as best as I can!
Click to expand...
Click to collapse
Thanks for the suggestions. I have heard so much about the great battery life, but that has not been my experience. I had a Note 1 and I had no problems. With Note 2, the battery drains to about 1/4 after about 7 hours with limited use. I have turned off auto rotation, lowered the screen brightness, changed auto check settings for email, and don't see much difference. In addition, it seems a shame that I should have to figure out ways to use fewer functions to make battery last for phone calls, since I never had to do that before. Any ideas?

Thank you for this info. I consistently get a full days charge of of my phone but was pretty clueless when it came to what was draining my battery. I've used the rotation lock app and will report my results to see if I get even more remaining battery each day.
Sent from my SPH-L900 using xda app-developers app

Thanks for the helpful advice Viperboy! I've definitely been having wake lock issues with my phone. Hopefully these apps will help me eliminate the problems.

kat3k said:
Thanks for the suggestions. I have heard so much about the great battery life, but that has not been my experience. I had a Note 1 and I had no problems. With Note 2, the battery drains to about 1/4 after about 7 hours with limited use. I have turned off auto rotation, lowered the screen brightness, changed auto check settings for email, and don't see much difference. In addition, it seems a shame that I should have to figure out ways to use fewer functions to make battery last for phone calls, since I never had to do that before. Any ideas?
Click to expand...
Click to collapse
As viperboy mentioned, BetterBatteryStats is your friend. It really will help you figure out why your phone isn't sleeping like it should. It definitely takes some time to monitor and figure out what the readings mean to help point you to the apps or settings that're affecting your battery, but well worth it. I also like having a better understanding of how things work on my phone.

i did a double check on battery monitor widget pro and it started draining my phone again. as soon as i uninstalled it everything was fine again. this is with both cleanrom and blazer. i'll just wait til official support comes and try it again.

-viperboy- said:
Hey guys, I was getting terrible battery life when the phone is idle. I looked into it to see what was going on. First off, I am on the stock rooted deodex'd ROM that scrosler posted. The biggest problem was an app I installed called Light Flow Lite, it controls your LED. It had over 6 hours of wakelock today. Removed it, not worth it at all.
The second thing I found that was interesting was after that, the phone STILL wasn't hitting deep sleep. I poked around in BetterBatteryStats and didn't find anything in there that would explain that. I then ran a "top" (in terminal or adb shell, type top -m 5 -t). Everything looked normal, nothing crazy. But I turned the screen off and let it run for a few seconds. I got a massive spike in CPU (anywhere from 15-35%) for system_server with the thread "WindowManagerPo" (which is likely short for WindowManagerPolicy).
I did some searching and it turns out that there is a bug with auto rotation that causes this. Essentially, the sensors don't stop looking for orientation change when the screen is off. I found reports of this in the Nexus S forums, GS3 forums, etc. This leads me to believe it is a Samsung kernel issue, since that's the least common denominator when it comes to the phones that had this issue. If you don't use auto rotation, you probably aren't encountering this issue (but keep reading for some good info below!) But I use auto rotation, how can I fix this?
Download an app called Auto Rotate Auto Lock. This app will turn off auto rotation when your screen turns off and enable it back when you turn the screen back on. This looks like this should really help to combat this bug and it handy for people like me who like auto rotation but don't want to have battery life suffer from something as stupid as this. I have verified that my phone now does enter Deep Sleep easily, and it hadn't hit that all day!
I also recommend an app called CPU Spy Plus (XDA thread). This app shows some very valuable information about your processor. You never want to see "Deep Sleep" under Unused CPU States as this means your phone isn't sleeping and is wasting battery!
It would also be good to download BetterBatteryStats (XDA Thread). This will help you nail down battery drain that you won't see in the stock Battery graph found in Settings. Things or importance are Partial Wakelocks and Alarms.
Monitoring these apps can really help you to increase your battery life on your phone. If anyone else is having bad battery life when idle, please try this out. I'm sure this will help you Feel free to ask questions, I will try to answer them as best as I can!
Click to expand...
Click to collapse
Have you tried the Perseus kernel? I hear the battery life is improved with it. So may be it doesn't have the rotate issue.

I've been using cpu sleeper and I easily get about 30 hours. Looks like the new apk fixed quad core. So when the phone is off it only uses one core and shuts down the other three and lights them back up when you need them.
Sent from my SPH-L900 using xda premium

ZenInsight said:
Have you tried the Perseus kernel? I hear the battery life is improved with it. So may be it doesn't have the rotate issue.
Click to expand...
Click to collapse
I'm on it now, but I haven't looked to see if it fixed the auto rotation bug yet,
rudyrude432 said:
I've been using cpu sleeper and I easily get about 30 hours. Looks like the new apk fixed quad core. So when the phone is off it only uses one core and shuts down the other three and lights them back up when you need them.
Sent from my SPH-L900 using xda premium
Click to expand...
Click to collapse
That app is unnecessary. Pegasusq governor already does that by default. Goes to 1 core and 200mhz when screen off, at least that's how my Note 10.1 was. I assume it is the same here since the International GS3, GN 10.1, and GNII basically share the same kernel with a few minor differences.

I think I may try the perseus kernel today to see if it improves battery.. I haven't heard it does.. I just been seeing people do that benchmark stuff with it
-TeaM VeNuM Like A Boss

Interesting... I have a script that reports on CPU freq and, when plugged into USB (maybe the wall charger too, didn't check), it appears that the kernel runs cpu0 and cpu3 all the time, even when screen off. With the phone unplugged, it went to using only cpu0 but didn't cap the freq. It was spending a good amount of time at the higher frequencies even though I had nothing running.

MiguelHogue said:
I think I may try the perseus kernel today to see if it improves battery.. I haven't heard it does.. I just been seeing people do that benchmark stuff with it
-TeaM VeNuM Like A Boss
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1959898&page=5
Post #42

I installed the app to turn the rotation off when the screen is off so far everything good but when I get a call this goes crazy because the screen goes while in call. I know this because I have an smartwatch which it has a notification app and every message that the phone has my watch vibrates with that message and I had a call few minutes ago my watch started vibrating non stop until I hang up.
Sent from my SPH-L900 using Tapatalk 2

[Q] Any ROM battery drain pain HOX

Me and my partner both have HTC ONE x's, Endeavouru, round a similar age, but her phone recently started draining battery.
Both running ARHD, with the same kernels. First I checked if apps were responsible, wiped and reflashed the ROM and kernel both.
This did not work, so then checked battery health with *#*#4636#*#* - showing the battery was in good health, but then replaced the battery anyway to eliminate any possibility of this being the culprit.
Now it's still giving massive drain - a charge up to 100% will last up to 5 hours of standby, with only mobile network activity turned on, all other radios off.
Been throughout the forums and other websites looking for any solutions to this problem but not striking any luck. Tried resetting the radio, changing it to LTE (Not even available where we are), and back etc, as one thread suggested, turned radio completely off and back on. Tried super cleaning the system before reflashing the ROM, tried a different kernel, an AOSP ROM, and still no luck.
It just all of a sudden started to do it, similar conditions to my phone, which makes it harder to pinpoint.
Any new idea's to bring to the table, open to any.
nb: Posted in wrong forum earlier, my bad.

goentillsundown said:
Me and my partner both have HTC ONE x's, Endeavouru, round a similar age, but her phone recently started draining battery.
Both running ARHD, with the same kernels. First I checked if apps were responsible, wiped and reflashed the ROM and kernel both.
This did not work, so then checked battery health with *#*#4636#*#* - showing the battery was in good health, but then replaced the battery anyway to eliminate any possibility of this being the culprit.
Now it's still giving massive drain - a charge up to 100% will last up to 5 hours of standby, with only mobile network activity turned on, all other radios off.
Been throughout the forums and other websites looking for any solutions to this problem but not striking any luck. Tried resetting the radio, changing it to LTE (Not even available where we are), and back etc, as one thread suggested, turned radio completely off and back on. Tried super cleaning the system before reflashing the ROM, tried a different kernel, an AOSP ROM, and still no luck.
It just all of a sudden started to do it, similar conditions to my phone, which makes it harder to pinpoint.
Any new idea's to bring to the table, open to any.
nb: Posted in wrong forum earlier, my bad.
Click to expand...
Click to collapse
try downloading wakelock detector and seeing what keeps the phone awake and then uninstalling/reducing its privileges
the privileges part can be done with xposed and a module called appops

suljo94 said:
try downloading wakelock detector and seeing what keeps the phone awake and then uninstalling/reducing its privileges
the privileges part can be done with xposed and a module called appops
Click to expand...
Click to collapse
Well an update to this thread...
Went to install wakelock on the phone after having it turned off for a few days, the battery was drained and now every time I try charging, regardless of what I use re ac/computer/original/aftermarket charging equipment, all it does is heat up to about 58 degrees C and stop charging - with phone off or on.
Sucks as it seems to be a manufacturing fault, but since I've rooted it, and purchased 2nd hand, looks like one for the rubbish bin

goentillsundown said:
Well an update to this thread...
Went to install wakelock on the phone after having it turned off for a few days, the battery was drained and now every time I try charging, regardless of what I use re ac/computer/original/aftermarket charging equipment, all it does is heat up to about 58 degrees C and stop charging - with phone off or on.
Sucks as it seems to be a manufacturing fault, but since I've rooted it, and purchased 2nd hand, looks like one for the rubbish bin
Click to expand...
Click to collapse
Looks like faulty battery, try change the battery with new one and see what will happend

goentillsundown said:
Well an update to this thread...
Went to install wakelock on the phone after having it turned off for a few days, the battery was drained and now every time I try charging, regardless of what I use re ac/computer/original/aftermarket charging equipment, all it does is heat up to about 58 degrees C and stop charging - with phone off or on.
Sucks as it seems to be a manufacturing fault, but since I've rooted it, and purchased 2nd hand, looks like one for the rubbish bin
Click to expand...
Click to collapse
check if your cpu is stuck at 100% or 1.5 ghz in trickstermod and could you post a screenshot of wakelock detector?
Thant said:
Looks like faulty battery, try change the battery with new one and see what will happend
Click to expand...
Click to collapse
in the OP he said that he did that already

suljo94 said:
check if your cpu is stuck at 100% or 1.5 ghz in trickstermod and could you post a screenshot of wakelock detector?
in the OP he said that he did that already
Click to expand...
Click to collapse
Sorry I didn't see that. Then I am 80% sure the light sensor not working or working wrong. Must to check this. I am sure it is some of the sensors

Thant said:
Sorry I didn't see that. Then I am 80% sure the light sensor not working or working wrong. Must to check this. I am sure it is some of the sensors
Click to expand...
Click to collapse
Surely if it's the light sensor it would be irrelevant if it was turned off or on though, same with the CPU. I'm going to spend some time getting power into it today, charge, then put in freezer to cool it, and repeat.
Once some power is into it I'll start with suggestions, one at a time, and get some screen shots up, and logs of the current drain.
Thanks for the help so far, would be good to get it going again, instead of having a $350 paper weight.

An update:
Changed the recovery from Philz recovery to an older CWM recovery program, and now possibly just through coincidence the battery isn't super heating to the point it needs to live in the freezer to charge.
I have restored to stock ROM, and have a couple of pictures of the battery history, which are neither here nor there, apologies as I wiped a lot of things off, including my WLD pictures from the ARHD ROM.
I purchased trickstermod and had a look into the CPU settings, and nothing seemed out of the ordinary. Also turned on the dev options of graphic CPU usage on the homescreen - not really showing unusual signs of anything. About to flash the original recovery on and email HTC to see if they might feel sorry enough to accept it as a straight manufacturing defect, without evidence of where we purchased it (as it was a second hand phone off the net).

subscribing to this thread - I have the exact same issue. I have installed CM11 and ParanoidAndroid. Torched and Bubba kernel... turned off lots of stuff.
I have whatsapp, soundcloud and facebook as the only background running apps. not sure what's the issue

sensors drain battery
Hello!
I also have a similiar issue.
I noticed, after a while, that my phone keeps dying under 16-18 hrs on idle from full charge.
I thought it1s the battery, since my HOX is 2 years old. Someone suggested, to try some battery monitoring, so i got the battery monitoring widget, after for like 3rd time, the phone turned off overnight.
The problem, is the Light, and the acceleration sensors... they won1t let the phone go to sleep.
I tried turning off locations, and such, also auto rotation, and my back light was never on auto. it is set around 30%
Still, these sensors run, and consume battery like crazy. This started about 2 weeks ago.
I have a stock rom. not the original, since i thought flashing a custom rom might solve this, so i tried ViperX 4.1.1, the problem was still there.
After that, i reflashed an untouched original HTC JB rom.got the latest OTA update, and the problem is still there...
I don't have any apps running in the background, that should require these sensors to run. i always clear multitasking also.
Have Wifi on, but that barely consumes anything.
Any idea, i know this started on Gingerbread, and was supposedly fixed in ICS, but it's still happening to some ppl.
Any help would be appreciated!

Laccee said:
Hello!
I also have a similiar issue.
I noticed, after a while, that my phone keeps dying under 16-18 hrs on idle from full charge.
I thought it1s the battery, since my HOX is 2 years old. Someone suggested, to try some battery monitoring, so i got the battery monitoring widget, after for like 3rd time, the phone turned off overnight.
The problem, is the Light, and the acceleration sensors... they won1t let the phone go to sleep.
I tried turning off locations, and such, also auto rotation, and my back light was never on auto. it is set around 30%
Still, these sensors run, and consume battery like crazy. This started about 2 weeks ago.
I have a stock rom. not the original, since i thought flashing a custom rom might solve this, so i tried ViperX 4.1.1, the problem was still there.
After that, i reflashed an untouched original HTC JB rom.got the latest OTA update, and the problem is still there...
I don't have any apps running in the background, that should require these sensors to run. i always clear multitasking also.
Have Wifi on, but that barely consumes anything.
Any idea, i know this started on Gingerbread, and was supposedly fixed in ICS, but it's still happening to some ppl.
Any help would be appreciated!
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I have checked all the sensors in the testing menu by dialing *#*#3424#*#* and they all turn off and on as required properly. I noticed yesterday that I've actually burnt out the charging system as it has got too hot at one point, so no use pursuing anymore. I will stick with my HOX until it too breaks in some way. Received an email back from HTC saying "Not under warranty, not our problem" after asking if they had had any phones with similar issues pass through.

Can someone please tell me what's causing my battery drain?

I even broke my phone with App Ops trying to figure it out, disabling wake permissions for most apps which caused FC's and even reboots. I have since restored all permissions but I still get FC's whenever I leave an app or switch out of it. Not sure if it's really crashing, but I get a FC message every time. So much so that Substratum turned off its theming for Files because it "crashed" after every screenshot was successfully uploaded to this post. Btw I just removed CrossBreed Lite and it seems to have helped. So far no reboots doing the same stuff that caused reboots! Not sure why it caused problems though. I used it for a few days with no issues.
Anyway, back to my battery woes. 30-40% kernel system usage. Why is this happening? Even Snapchat which is abusing wake locks is nothing compared to kernel system.
I'm running the latest build of AIM 8.1 with EX Kernel. I have just visited the other thread about tweaking governer values to optimize battery life so I'll report back with results although I doubt that's relevant to my battery drain.
I've Googled quite a bit on the subject and it seems that each case is different. Usually caused by a certain bug, although a lot of people say it's "normal" which I strongly disagree with.

Update: optimizing the CPU has definitely made an improvement, but the kernel battery drain still exists.
Could it really be pick up to wake and wifi search behind the drain? Isn't this phone supposed to have a sensor hub that allegedly allows for all sensors to constantly be on while using minimal power? I never noticed this drain on any other phone with both of these features on.
Anyway, I disabled pick up to wake and I'll start trying to remember to turn off wifi when not in use.

I think you're trying too hard and running a bunch of stuff. The kernal usage looks about right. I wouldn't run Gsam and BBS at the same time. They can fight each other. What makes you think there's a problem? Nothing jumps out at me.
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I also can't see anything out of the ordinary, except this one picture where it shows the phone being active while dozing. I don't know how to understand that because I don't use that app, maybe I'm reading it wrong. What does Android's built-in battery monitor show? Is it dozing properly while screen is off? What is your average SOT? Is your mobile signal strong? I'm also using AIM 8.1+EX combination with satisfying results. Is your radio up to date?

maybe Wakelock Detektor or Greenify can help you.

And if you currently have things crashing all the time, start with a factory reset. Much easier to diagnose the cause when the apps aren't doing random stuff.