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Strange "Android System" CPU usage times battery usage

I've been noticing a weird shift in percentages of usage on my battery. Before a few days ago, display would take up a good 70+% of the battery. Now, I seem to be seeing a 40%-ish usage from Android System. My girlfriend and I have the same phone, we both unplugged at the same time and within 2 hours, hers only had about 4 minutes of CPU usage from Android System while mine had a whopping 1 hour.
I can't figure out what the problem is or what's causing this.. Anyone able to shed some light on this for me?

I noticed that Android System is using the second most battery after the display for me too. Hadn't noticed this at all until today. Are you rooted?
Sent from my ADR6400L using XDA App

mjforte said:
I noticed that Android System is using the second most battery after the display for me too. Hadn't noticed this at all until today. Are you rooted?
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I am not.
It just doesn't make any sense to me because my girlfriend and I were in the same spot for those two hours; nothing should have been different.

Yeah that is weird. Anyone else that can shed some light on this?
Sent from my ADR6400L using XDA App

Sounds like a rogue process. Reset and see what happens.

You may want to use an app like Quick System Info Pro (or something else, can anyone suggest one?) and capture logs of that process. That might shed some light on whats going on.
I had that problem, and then through elimination figured out that if I had a clockweather widget on the home screen, it caused some issues. I dunno why.

a number of things are always going to be using the battery. if the display isn't the biggest battery user and the android system is than it simply means that a number of background processes have been consuming your battery while your display has been off. how is or was your battery level compared to your girlfriend's phone? perhaps you have more things that are sync'ing in the background than your girlfriend. anyway, unless you're seeing an unusually high drain in your battery than I wouldn't worry about it.

Well, I powered off/on the phone and it doesn't seem to be doing it anymore. I would love to find an app that could help me pinpoint this next time so I don't have to power down my phone just to fix it. I have aLogcat installed but I can only see the past two minutes of logs because it goes by so fast.
shock2sys said:
a number of things are always going to be using the battery. if the display isn't the biggest battery user and the android system is than it simply means that a number of background processes have been consuming your battery while your display has been off. how is or was your battery level compared to your girlfriend's phone? perhaps you have more things that are sync'ing in the background than your girlfriend. anyway, unless you're seeing an unusually high drain in your battery than I wouldn't worry about it.
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Yeah, the problem is how much battery it was draining. Within the 2 hours it was unplugged, I lost 54%; she only lost 29%.

Ive had this same problem with Android System going crazy. I have no idea what causes it. A reboot fixes it, but it's pretty annoying.

Yup. I've seen this too.
I'm gonna guess you guys were on 4G? I've read this exact thing happening to a few people, and they've all been on 4G. It's happened to me three times -- all on 4G. I keep my phone on 3G at work because the signal is terrible and WiFi at home and haven't seen this issue in those circumstances. Some kind of 4G radio issue, most likely.
I read in another thread Verizon is aware of the problem (or so somebody was told on a support call about it), so hopefully it'll get fixed in an OTA update.

Alternative for bLED: NoLED

First thing I want to say is that I didn't create this app.
But for everyone who finds the bLED idea kind of handy: NoLED does it too, but in another way.
Here the link to the thread:
http://forum.xda-developers.com/showthread.php?t=730692

I confirm that this application works very well on the GALAXY NOTE.
Thank you to the developer.

BubbleBuzz is better

Thanks. NoLed is an amazing app
Sent from my GT-I9100 using xda premium

Screen based "LED notification" are not that healthy even with the SAMOLED, the screen is still lit and voltage is going through the screen and not only that but you also degrade both green and red OLEDs as they stay on even when a black picture is displayed as backed up by this post:
http://forum.xda-developers.com/showpost.php?p=21560940&postcount=103
But if you dont care of any of those then its pretty ok to use at the expense of battery life.

An amazing app indeed. If only it didnt eat my battery. Since removing it I went from 1 day to 2 days on a batterycharge.
Not giving noled all the credit tho, also switched to LA4 a few days ago.

Nice application works very well on the NOTE.

I am a Noled user for 2 Years now, Its the best! ű

I tried iLED and it munched the battery in hours.
After installing Better Battery Stats and researching wakelocks, I understood that screen based LED notification apps will cause the phone to constantly remain in a state that drains the battery, not just the LED draining it.
I believe bLED operates differently and so doesn't drain the battery as much.
madmack said:
You see the major problem with NoLED is in the Android framework. a) Android doesn't allow the CPU to deep-sleep if the screen is on regardless of its content. b) The black pixels are actually switched on. Even though I believe that our screen is capable of switching partial pixels on, the Android API simply doesn't give access to this feature.
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Xaddict said:
I tried iLED and it munched the battery in hours.
After installing Better Battery Stats and researching wakelocks, I understood that screen based LED notification apps will cause the phone to constantly remain in a state that drains the battery, not just the LED draining it.
I believe bLED operates differently and so doesn't drain the battery as much.
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Click to collapse
Yeah, not only that, but NoLED wasn't working very well for me anyway. It kept coming on even when the screen wasn't sleeping (e.g. over running satnav...).
I am hoping that somebody will eventually add support for BLN to the kernel! I've seen BLN on Nexus S and it looks ideal.

[Q] Handcent Battery Drain?

Since installing Handcent I have noticed a decrease in battery life. While it is not AWFUL, it obviously shouldn't be happening and I would like to get to the bottom of this. Today I basically left my phone on my desk all day with very little usage. 41% of my battery drain is coming from handcent and my phone has been awake all day. I received a few text messages, but I quickly responded or dismissed the notification.
I have included screenshots of my overall battery usage, specific history details and app info relative to handcent.
Has anyone noticed any issues like this?
Rooted Stock 4.0.4

try disabling the pop up and set it so it does not blink led . I think that is what I did to get it to stop draining. do you have it set as default messaging,and if so did you unchecked notifications in the stock messaging app?

Freeze the stock sms app. Should help considerably.
Sent from my SCH-I535 using xda premium

annoyingduck said:
Freeze the stock sms app. Should help considerably.
Stock SMS has been frozen... One of the reasons I use handcent is because I like the pop up reply system. Are you sure it was disabling this that fixed it?
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On my wife's droid 3, she uses handset. Once I rooted her device (after a year running stock), I froze her stock messaging app and she has noticed a noticeable increase in battery life. She uses the pop ups too, think that's why she likes it to begin with.
That's why I recommended that.
Sent from my SCH-I535 using xda premium

annoyingduck said:
On my wife's droid 3, she uses handset. Once I rooted her device (after a year running stock), I froze her stock messaging app and she has noticed a noticeable increase in battery life. She uses the pop ups too, think that's why she likes it to begin with.
That's why I recommended that.
Sent from my SCH-I535 using xda premium
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Yea this is a total opposite. I've seen a huge drop in battery life once I rooted and made the switch to handcent. I'm just going to freeze handcent until their is an update or until there is a stable full feature Jelly Bean/Cyanogen for me to switch to.

Very interesting. I'm gonna put handsent on now and see what happens...
I'll get back once I have some useful intel
Sent from my SCH-I535 using xda premium

i've never had this problem and have been using Hancent since i got my S3 and was using it on my DX with CM7 before that. On my DX every once and awhile I had an issue with the phone never sleeping and a reboot with fix it but never saw handcent even coming near 41% percent usage even while texting back and forth. What settings do you have? Looking at my apps list, I guess I disabled Stock SMS if that's what its called, can't find it. I do know that I set Handcent as my default text app. I also have the pop up enabled.
I just looked at my battery usage screen and Handcent doesn't even show, even after opening it to look at different messages, weird.

Maybe the problem isn't totally handcent.... I froze handcent last night and defrosted the stock messaging app. Full charge overnight. This mornign I am 4 hours since unplugged and my phone has been awake the entire time. This still doesn't explain the 41% handcent usage before I froze it though. (Stock SMS is about 9% usage today)

Yeah, I think there is an awake lock issue. I installed handsent last night and am not experiencing any major battery issues. You might want to consider a full wipe/revert back to stock and start over. Not sure though, as I have never had this issue.
Sent from my SCH-I535 using xda premium

dynamite972 said:
Since installing Handcent I have noticed a decrease in battery life. While it is not AWFUL, it obviously shouldn't be happening and I would like to get to the bottom of this. Today I basically left my phone on my desk all day with very little usage. 41% of my battery drain is coming from handcent and my phone has been awake all day. I received a few text messages, but I quickly responded or dismissed the notification.
I have included screenshots of my overall battery usage, specific history details and app info relative to handcent.
Has anyone noticed any issues like this?
Rooted Stock 4.0.4
Click to expand...
Click to collapse
The reason your phone has been awake all day is because you have wifi turned on. If wifi is on, your phone does not sleep. Also, you say you left your phone sitting all day but you texted briefly. If you use the phone briefly but only texted of course 41% will be taken by Handcent. It's a percentage of what you actively did in the past 10hours and 54 minutes, which you stated is very little of anything else, so it looks more like a battery drain than it is. If you didn't have wifi on and that was the percentage coupled with your phone being awake, then we could properly assess this. Until you re-post with wifi turned off and the same percentages remain, you are misinterpreting the screenshot of the battery profile.

That was an anecdotal story regarding the usage of the phone on a particular day. I have noticed this high percentage for over a week before posting.
I have already frozen handcent last night, but even with wifi off (followed by a battery pull) I am still in a wake lock.

dynamite972 said:
That was an anecdotal story regarding the usage of the phone on a particular day. I have noticed this high percentage for over a week before posting.
I have already frozen handcent last night, but even with wifi off (followed by a battery pull) I am still in a wake lock.
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Appreciate the new screenshot. If that's the case, there might be something else keeping your phone awake. Do you have any other apps that you notice odd behavior in?

SlimSnoopOS said:
Appreciate the new screenshot. If that's the case, there might be something else keeping your phone awake. Do you have any other apps that you notice odd behavior in?
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Here is the breakdown of today's usage. Nothing jumps out at me (although the samsung maps process looks new to me). I'm down almost 50% in 4.5 hours on very light usage. It might not look terrible, but i had been getting PHENOMENAL battery life on this phone from getting it in July until about a week ago. I have a pretty busy day today, but I'm probably going to just put a new ROM on it Thursday...
I've read that better battery stats App is a good way to isolate wake locks, but its 3$ and if installing a new ROM/Kernel pretty soon will most likely fix the issue I don't think its worth it at the moment.

Betterbatterystats is great for checking what is causing wake locks and there is a free version for XDA members under the general Android apps forum.
Sent from my SCH-I535 using xda app-developers app

Thanks for info, any quick tips as to best maximize this software while troubleshooting?
Or is the thread below pretty much all I need?
http://forum.xda-developers.com/showthread.php?t=1179809

dynamite972 said:
Thanks for info, any quick tips as to best maximize this software while troubleshooting?
Or is the thread below pretty much all I need?
http://forum.xda-developers.com/showthread.php?t=1179809
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Click to collapse
Mainly look through the thread, it's long so just at last make sure you read the OP and a couple of the last pages.
I personally will charge my phone up during the day or evening to full and unplug it before I go to bed. Then in the morning check partial wake locks, processes and alarms. Alarms is my personnel favorite, showed me that latitude had turned itself on and was killing my battery!
You will need to charge up during the day I'm sure, but you should be able to cut down some problems for the long run.
Sent from my SCH-I535 using xda app-developers app

Only took 20 minutes to see what is probably the issue. See the attached photo of the partial wake lock section
SDM_Partial_WakeLock
Familiar with this at all?

dynamite972 said:
Only took 20 minutes to see what is probably the issue. See the attached photo of the partial wake lock section
SDM_Partial_WakeLock
Familiar with this at all?
Click to expand...
Click to collapse
Not really, but from what I've read it has to do with the OTA system. I froze mine with titanium backup. It's called sdm 1.0 if I remember correct, try freezing that and see if that fixes it.
Sent from my SCH-I535 using xda app-developers app

OK. Just froze it. I'll give it an hour to see how this affects the stats. Does this negatively impact the system or text messaging in general in any way that you know of?

battery consumption when off

My tablet uses waaay to much power when its in standby or off. I use my note 10.1 intermittently, so this is frustrating. I cant help but notice that my daughters ipad can last a week on standby with virtually no consumption, but my note will die after a day a nd a half of doing nothing.
Ive already shut off wifi when in standby, anything else?

get rid of bloatware by rooting your device if you are up for it, bloatware is the main problem for battery drain, also use the power saver option in the settings and make sure the brightness is not on to high, my note last around 3 days on standby so there is something definitely draining your battery.

I'm not rooted and can still get about 3 full days if I'm not using it that much. You can just disable some of the bloatware, but rooting will allow you to remove all of it. If you go to -settings-application manager-all- it'll list all the apps on your phone. If you click on an app you can sometimes disable it. I, for instance disabled, "Google Music, as well as some of the samsung media apps" because I don't use them, but they were still using some of my mobile data.
I also use Juice defender ultimate to regulate wifi when the tab is sleeping. You can adjust how often the tablet will turn on the wifi to sync, then keep it off for the remainder of the time the screen it off. I also have it set to turn on wifi as soon as the screen turns on.
If you go to -settings-battery- you can see the percent that each app is consuming over any time period.
Also if you have a lot of widgets that need to constantly update that may also be part of the problem. While individual widgets are fine, when you have a lot it starts to add up.
You can also get "Wakelock" which tells you what apps are waking your tablet, and "watchdog task manager" to tell you if a particular app is out of control. These two apps will only tell you if a particular app(s) are contributing to the problem not fix it.
If the note is off, which I don't normally do, it'll last about 5-6days. There are a lot of other battery saving tips, but most of those are for when the screen is on.
It's funny, I always hear different things when comparing iWhatever to Androidwhatever, as far as battery life. I hear it both ways from people who have used both. I think with Android it's really dependent on what you have installed, where as with the iPad/iPhone it's more consistent.
One of the things I noticed with people switching for Apple to Android is that with Android you really need to install apps to get it work the way you want it to. With Apple it's ready to go out the the box, but you are forced to do it the way they feel is the correct way to do things. With Android you can get a more customized experience but you have to find the app that will do it through research, and trial and error.

Battery drain when off = hardware fault .
jje

hanexs said:
My tablet uses waaay to much power when its in standby or off. I use my note 10.1 intermittently, so this is frustrating. I cant help but notice that my daughters ipad can last a week on standby with virtually no consumption, but my note will die after a day a nd a half of doing nothing.
Ive already shut off wifi when in standby, anything else?
Click to expand...
Click to collapse
Not normal. Are uou running stock . Any strange stuff running in background. check in settings what is using your battery.

That's not normal at all. My tab has been on connected to wifi for over 3 days and is at 72% remaining. Root, install collective v6, then use better battery stats from the play store and monitor your applications. You probably have a few things like news apps auto refreshkng every 15 min or half hour. Make sure that all apps that have a sync option are set to like 6 hour intervals.
Not much Use over the past Couple days, just my game for a bit And some e-mail but this is what you should be at with light use and mainly stand by. I don't use juice Defender, Or any thing that turns off my wifi / GPs / Bluetooth. Power save is off because it disables the IR Remote app. Auto- Bright, and s-Pen is Always On because I have 3 of them SO I Dont always remove my pen.

HUYI said:
get rid of bloatware ... bloatware is the main problem for battery drain
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Bollocks. So-called "Bloatware" almost certainly has NOTHING to do with this. Other than my kernel, I only run Stock ROMs and no apps I don't actively use ever show up on the battery stats.
Rooting, however, will allow you to run "Better Battery Stats", which will allow you to figure out what app is either preventing wakelocks from letting your device go into "Deep Sleep" mode, or waking it up enough that the drain is kiling your battery.
Also, depending on the AP you're running at home, the "beacons" it sends may be waking up the WiFi stack on your Note all the time- I had this problem with a D-Link AP once. (My custom kernels (search for 'em, once you decide to root) have minimized this problem, BTW.)
One other thing to consider if you have a 3G/LTE version is the radio- not only is it always drawing, but in low-signal areas it will positively murder your battery as it spends a lot of power telling the cell stations where it is.

hanexs said:
My tablet uses waaay to much power when its in standby or off. I use my note 10.1 intermittently, so this is frustrating. I cant help but notice that my daughters ipad can last a week on standby with virtually no consumption, but my note will die after a day a nd a half of doing nothing.
Ive already shut off wifi when in standby, anything else?
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Reset, if still does it then take back or send for repair.
Mine is stock no root and full of,"bloatware". It will standby over a week or more, and runs on net probably 10 hours. No differnt rom is going to fix your problem.

Lolol my note sits there for weeks at a time on standby and when i pick it up weeks later, it still has 30-50% left...
Bloatware.. Or aliens.. Are causing your battery drain
Sent from my Nexus 4 using xda app-developers app

Droid Maxx Battery Drain

After the latest OTA, my battery has been draining very quickly, to the point where I can only get 6-8 hours out of a full charge. Is anyone else having this problem? Or does anyone have any ideas of how to fix it?
Sent from my XT1080 using Tapatalk

I think more information is needed. What version you on? What apps draining it? The more information you provide, the more help you can get.

Settings / battery usage. Tap the graph - if the awake graph shows a lot of blue, you have an app (or more than one) holding the phone awake. The settings / battery usage first screen may give a clue what that is.
One other thing to look at is a corrupted Google sync. Settings, tap "Google" under accounts. If you see an item with a red circle rather than a green circle, it is having sync problems. That can drain battery fast.

Thanks for the replies. I believe it was simply a combination of switching to a new app for texting (EvolveSMS, which is great, by the way) that turned on my screen whenever I received a new text and being in a big city on vacation where I'm not getting the consistent signal strength I'm used to.
Sent from my XT1080 using Tapatalk

I'm having the same issue. I did a full factory restore of the new update, loaded the same apps as I previously had from scratch (no titanium) and my battery is draining rapidly. No run away apps at all. Probably getting 1/3 the life as I was previously.