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Android System consuming battery

I have been obessing over my battery stat page and am trying to figure out what exactly "Android System" is. It is usually consuming the highest percentage of battery power. I have tried everything to figure out what action exactly makes Android System get added to the battery stats page. I have disabled everything, every radio, syncing, deleted all widgets. I hardly have any apps as it is. It just seems rather inconsistent because sometimes Ill check the page after making a call and will find that Voice calls has consumed a small percentage of battery and Android System isn't even on the list. Other times I will take it off the charger and make a 30 minute call, but when I check the stats page 70% battery was used by Android System and only 3% was Voice Calls.
Can anyone tell me exactly what triggers Android System so I can make sure I cut down on its battery usage in any way possible
Sent from my Microwave

I assume you are looking in the settings > about phone > battery. You can select android system also and it will tell you more info.

Agoattamer said:
I assume you are looking in the settings > about phone > battery. You can select android system also and it will tell you more info.
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I see that but under more info its not very clear about what's using the batt.
Sent from my Microwave

http://img.photobucket.com/albums/v673/seh6183/screenshot-1312932238053.png
Sent from my Microwave

Anyone have any comments on this?
Sent from my Microwave

Did a battery calibration and now android system isn't the number 1 thing consuming battery as usual. Weird:
http://img.photobucket.com/albums/v673/seh6183/testshot.png
This seems to be more in line with what normal battery usage should look like in my opinion.
Sent from my Microwave

I had this problem too until I did a calibration. Now cell standby consumes over 50% of my battery regularly, with android system consuming only 2%.
Sent from my HTC Inspire 4G using XDA App

Yea I did a calibration and all is well
http://img.photobucket.com/albums/v673/seh6183/screenshot-1313102466360.png
Thank you
Sent from my Microwave

Aaaaaaaaand were back LOL
http://img.photobucket.com/albums/v673/seh6183/screenshot-1313118381659.png
Sent from my Microwave

Its still occurring
What would you guys do?
Android system will occasionally use CPU as well, as shown in the following screenshots. Also! My good buddy let me see his Droid x recently. He had 42% battery life left and android system had only taken up 4% of that.
I'm pretty upset about this.
http://img.photobucket.com/albums/v673/seh6183/screenshot-1314312490137.png
http://img.photobucket.com/albums/v673/seh6183/screenshot-1314312473018.png
http://img.photobucket.com/albums/v673/seh6183/screenshot-1314312512785.png
Sent from my Microwave

If you asked me I would say all your values are a little screwy. Do you even turn the screen on, on your phone and use it? If you use your phone the Display should be by far the most used. To me it looks like you physically use your phone very little. That is why Phone idle and Android System seem to be the higher numbers.
Guessing you have many accounts syncing in the background. One of the biggies for Android System. So its not that Android System is using so much, the rest of the processes are using so little.

Oddly enough the same thing started happening with my phone recently too.
@Agoattamer
The system wouldn't eat most of the charge in less than 8 hours in normal circumstances. Also about your question concerning accounts, while I'm not seh6183, personally I only have my email account synchronizing and the very same thing happens.
Something is causing the CPU to remain awake, in my case stuck at 800MHz.
The factory reset will most likely solve it, but it'd be best to find the culprit to just try and rectify a specific anomaly rather than reinstalling the whole system.
Has recently any core Google apps been updated? Email, Maps, anything?

I do agree that in 8 hours of non physical use your battery should not be going dead. So I couldn't sleep last night and I did some google searching. Here are some things I found out.
Do you have Googles Goggles installed? Seems it may have a bug where it keeps the camera on even when the phone is supposedly asleep.
Seeing that seh6183 always has his wifi active maybe it has something to do with wifi. I found this from Juri's TechBlog
couple of days ago I finally got the eagerly awaited system upgrade to Gingerbread on my Nexus One. The update went pretty well, although some Nexus One users reported about problems with the updating process. The only thing I noticed is that Dropbox didn't work after the upgrade.
A re-install solved the issue. All-in-all Gingerbread is great. Beside UI enhancements it feels also faster than Froyo. However, after trying it for two days now, I noticed a substantial increase in battery consumption. By looking at the system battery stats (Settings -> About phone -> Battery use), Android System was listed to consume 23% of the battery .
Apparently the problem is a bug in Gingerbread version 2.3.3 (you know there is 2.4 as well) on how the system handles the Wifi adapter. If you go into your Settings -> Wireless & Networks -> Wi-Fi settings, press the menu button and click on "Advanced", you'll see a menu entry "Wi-Fi sleep policy". Gingerbread seems to have a problem when that option is set to "When screen turns off". While that may sound to be the most energy-saving option, the bug turns it into a battery killer. If you switch the option to "Never", the Android system will only consume ~3% in the battery stats.
Obviously, in addition to this, the best battery saver is to just turn Wi-Fi off when you don't need it . Caution, if one of the future updates fixes this problem (which I strongly hope), you have to set the option back again.
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Something I didn't see but killed my battery on my windows mobile phone was instant messengers. Do you use any apps that are for instant messaging.
Found this thread also talking about the same bug with wifi
http://code.google.com/p/android/issues/detail?id=15057
So it seems that if you (cmdr001) also are a full time wifi user, you may be affected by the same bug. Check your wifi sleep policy and adjust your settings to "Never".
Install a battery monitor app from the market or spare parts to see what is using your battery. Install Juice Defender to stop all that excessive useage.

Excellent find!!!!!
Just switched the sleep policy to "never" (which ironically I've always used until very recently). Ill return with results after about 5 hours. The only thing is that I'm on android 2.3.5 not 3.3 so we will have to see if the bug was affecting me.
I also don't have Google goggles. And to the above poster, my phone regularly went into deep sleep so it wasn't my CPU that was staying active.
Oh and I've been using watch dog to look for rogue programs for the last 24 hours. I haven't got a single alert.
Sent from my Microwave

I guess the first question should have been what ROM were you using and to try a different one then. Needless to say it still has 2.3.3 components in it. And if you recently changed that setting then my bet is thats the issue. Goodluck.
Watchdog may alert you if you are using too much cpu at one time but I don't think it will let you know what is constantly using the cpu.

Ok there's a glitch somewhere in the battery tracking. I just checked it and android system was consuming 12% battery. I placed one 17 minute phone call and re checked it, I then had 57% android system consumption.
No way.
I'm using a cm7 nightly and I'm about to flash the stable version with a different kernel. Ill do a full wipe as well.
Sent from my Microwave

You could check your wakelocks.

After recharging my battery to 100% and wiping the battery stats, my android system consistently uses 2% of the battery, while the display sucks up around ~40%.

"Android System" keeping phone awake 24/7, draining battery life- T-Mobile Z3

"Android System" keeping phone awake 24/7, draining battery life- T-Mobile Z3
I startes noticing that even after quite a few charge cycles, I'm still getting 4-5 hours of SoT over less than 24 hours. The phone is awake 24/7, and Android System seems to be the cause, but no idea why. Does anybody have any suggestions? I've attached some screenshots.

Factory reset?
Sent from my Z3

Maybe you have some apps causing wakelocks, showing through Android system? My dad had massive data usage from Youtube which confused me until I uninstalled an app that used YouTube.

Yes something that you have installed is causing the Android System to run for extended periods.
I would first try, disabling some apps in the settings menu, to see if that helps. (like throw, bluetooth, NFC, wifi, hotspot) see if any of those help
I would factory reset, and be very careful about what you install back onto the phone initially.

Or instead of reset try, clearing out all apps and re-install one by one untill you hit a bad one. If that does not work I guess reset.

festizzio said:
I startes noticing that even after quite a few charge cycles, I'm still getting 4-5 hours of SoT over less than 24 hours. The phone is awake 24/7, and Android System seems to be the cause, but no idea why. Does anybody have any suggestions? I've attached some screenshots.
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In Settings>Power Management, there is a selection called "App power consumption". Have you checked there? There could be an app listed that drains the battery.

I had checked app power consumption, and unfortunately it didn't give me any further information. Better Battery Stats is also almost completely useless without root, but I did try it and saw Performance Manager or something to that effect was what was keeping it awake (in Kernel Wakelocks). I ended up doing a factory reset, and it seems like it's working fine now with the same combination of apps.
I think I disabled something I shouldn't have using pm block (package), since after some searching it seems like the phone might have been constantly searching for a blocked package, keeping it awake. It's working fine now, thanks everyone for your suggestions!

Need help on battery life and CPU usage

I have a Samsung Galaxy S7 and the battery was doing fine. A few weeks ago the phone started getting quite slow and the battery life went way down. I had installed a few apps around then, so I removed them and still battery life was bad. I tried restarting the phone and that didn't help. At the time I was running Marshmellow and I was using OSMonitor to watch the system. I was finding that Android OS was taking most of my battery and 30% of the CPU all of the time. Not long after that Nougat became available and I upgraded thinking that might help. It didn't help and OSMonitor no longer worked. I switched to GSam Battery Monitor and used adb to give it the permissions to see all app information. I'm still finding that the Kernel is taking 28% of my battery and Android System is taking 37% of my battery and I can't figure out why. I would rather not need to do a full reset and install all of my apps and settings again, so I'm asking if anyone out there has ideas on things to try and fix this. This is a non-rooted phone running the stock image from Samsung/Verizon.
Thanks for any help.

try activate the Battery Saving option and use it for a day and see if helps

I've had this happen to me before. The phone was getting seriously hot while it was happening too. I decided to do all I can without doing a factory reset (I was on vacation at the time, so no access to something to backup my data).
I cleared the cache of all apps. Then I disabled all of the stock apps I didn't need (like Gear VR). I also shuttered apps running in the background to about a max of 3 apps open at any given time. That stopped the insane heat issue, but Android System was still sucking 30% of the battery. I turned off Always On Display, that got me down to about 25%. A factory reset got the phone down to around 10%, and I never saw the issue again.
Before you do that I would recommend checking out this thread below as there does appear to be a bunch of other possible solutions provided by others.
https://forum.xda-developers.com/s7-edge/help/how-experiencing-android-battery-drain-t3327730/page51

Djuganight said:
try activate the Battery Saving option and use it for a day and see if helps
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But then my background syncing is turned off too...
I didn't need this before, so wondering why I should need it now.

I had same issues and was able to fix it. See the following thread for details.
https://forum.xda-developers.com/showthread.php?p=71558514

Try this , it helped me a lot .
Download from the XDA forums the Kernel named : "Apollo Kernel" v7
Just flash it , and when you install it , if you dont use your phone for high end games or hard work,that requires high end specs , then you can underclock the cpu/gpu .
It s a battery life saver, plus , your components will be much better in terms of thermals/life

New phone with no apps added, phone disabled, screen off, drains far too much battery

Hi
I've got a brand new PH-1 and haven't yet had time to set it up properly, only started it up, let it update software and used for an hour or so before testing the idle battery drain.
I haven't installed any apps or changed any settings other than to disable the google app (to prevent it listening for or responding to "ok google"). I tried out the 360 camera, signed in to gmail and browsed a few websites, before charging back to full and restarting the phone before this test anyway.
But leaving it idle with the screen off and with phone network disabled (there's not even a SIM inserted), only wifi on with good signal, it lost 65% battery in under 22 hours. Screen on time was less than five minutes.
Is this a hardware issue I should RMA, or is it considered normal? If this is normal and there's no easy fix, I'll probably end up having to return the phone anyway for a refund, because if it can't even last a day and half in idle there's no way it would last a reasonable amount of time with normal usage.
Any ideas?
Thanks

Since there isn't a sim card installed, try going to airplane mode and then turning WIFI on.
I am getting about 1.2% drain with cell network and wifi enabled along with all my standard apps installed.

On a typical day with 1-2h SOT, I usually have 60-70% battery left at midnight. I'd try to reset the phone, and then testing again - occasionally a system update will end up doing something funny

I left it overnight with airplane mode on, so even wifi was off, and it's a little better but not by much. Screen on time was one minute.
With airplane mode on, screen off, no dodgy apps, the phone really shouldn't be doing anything to drain battery.
I'll try a full factory reset and see what happens.

Just to follow up, a full factory reset seems to have fixed the issue. Even after doing the same things I had done before (connected to wifi, updated, logged in to gmail, etc) the battery now drains at a much more sensible rate.
Very strange that a factory reset made a difference since it was new from the factory when I had the issue, but I guess something strange happened in the update like dsip suggested.
Thanks for the help!

nickwp said:
Just to follow up, a full factory reset seems to have fixed the issue. Even after doing the same things I had done before (connected to wifi, updated, logged in to gmail, etc) the battery now drains at a much more sensible rate.
Very strange that a factory reset made a difference since it was new from the factory when I had the issue, but I guess something strange happened in the update like dsip suggested.
Thanks for the help!
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That's ? percent normal behavior. Anytime you flash a ROM (new phone =new ROM) you need to wait a bare minimum of a charge cycle (more like three in my experience) before you get the slightest idea what your actual battery drain is going to look like. think of it like breaking in the engine on a new car.
Sent from my mata using XDA Labs

Update and its problems..

In fact, after the last update, the performance became faster and smoother. The programs quickly opened up. That's good.
but unfortunately the battery is draining more quickly.
And heat during charging has returned ?⁦⁩

I am on Security patch - 1 November 2018 as well.
And as soon as the phone restarted after the backup, the memory card showed up "corrupted" / Format to fix or use the card - error.
Thankfully, google photos backup saved the data..
But, this is bad.
Edit- Yes, Charging is really rapid.. and heats up the phone significantly more than before..

I have been in contact with Nokia's support department and said that the battery's rapid discharge is due to the adaptive battery. This will take a week or two to learn and then the battery will return as it was before

Emad tober said:
I have been in contact with Nokia's support department and said that the battery's rapid discharge is due to the adaptive battery. This will take a week or two to learn and then the battery will return as it was before
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I did a factory reset and the draining is gone immediately, so I don't think they're right

Rubens95 said:
I did a factory reset and the draining is gone immediately, so I don't think they're right
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And I also think that because I am not convinced.
Factory reset seems to be the best thing we do after every update.

Emad tober said:
And I also think that because I am not convinced.
Factory reset seems to be the best thing we do after every update.
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Click to collapse
Why don't try this?
https://forum.xda-developers.com/nokia-7-plus/how-to/how-to-fix-android-pie-problems-t3874455

NahuelMS said:
Why don't try this?
https://forum.xda-developers.com/nokia-7-plus/how-to/how-to-fix-android-pie-problems-t3874455
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Thanks. Support team Provide the following advice: while the screen is on. Press the Volume Up button + Power button for at least 10 seconds until I feel a vibration.
(The charger is unplugged). This is called a soft restart. I think the problem has been solved

Emad tober said:
In fact, after the last update, the performance became faster and smoother. The programs quickly opened up. That's good.
but unfortunately the battery is draining more quickly.
And heat during charging has returned ⁦⁩
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Click to collapse
Remove unwanted apps and wanted apps, have only system apps and 2 or 3 installed apps. Phone won't heat. And this is how I keep my phone cool. Bad apps makes heating issue, for instance if I install klwp app and give access to contact and phone calls log. Phone will get warm. Or remove unwanted permissions for all the installed apps and see if it helps.

saltgirl said:
Remove unwanted apps and wanted apps, have only system apps and 2 or 3 installed apps. Phone won't heat. And this is how I keep my phone cool. Bad apps makes heating issue, for instance if I install klwp app and give access to contact and phone calls log. Phone will get warm. Or remove unwanted permissions for all the installed apps and see if it helps.
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i suggest also get in settings/battery/adaptive, keep auto switch, but ALSO manually restrict ALL apps you don't need work in background...

I think the adaptive battery affects performance and does not help improve the battery. So i've disabled it and put all the programs in the list of blocked apps.that will help to save the battery.
Now i have the best performance...

Has anyone observed apps refreshing very often when multi-tasking. This issue is happening post-November update.

I love this phone. But now I'm having trouble freezing the screen. very annoying