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[Q] Battery drain and high Android OS usage?

Last week I got a Droid Ultra and am noticing my battery life is pretty bad. I'd heard the Ultras don't get great battery life to begin with but I think something else is going on with my setup. My Android OS usage is always by far the highest, dwarfing the screen percentage. This is my first smartphone so bear with me if this is normal or I'm doing something dumb. My usage seems to be pretty normal by these board's standards, 30min talk, 20-40 texts, wifi on, and couple hours of gaming. (slow week at work!) I have installed Watchdog and it is running on moderate, although I must admit I don't really know how to use it to its full capabilities. I have attached some screenshots below, any advice would be greatly appreciated.

I have a Mini with the same issue. Still haven't figured out what it is, even tried a factory reset. So you're not the only one.

jjlangen said:
I have a Mini with the same issue. Still haven't figured out what it is, even tried a factory reset. So you're not the only one.
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MrPlinkett said:
Last week I got a Droid Ultra and am noticing my battery life is pretty bad. I'd heard the Ultras don't get great battery life to begin with but I think something else is going on with my setup. My Android OS usage is always by far the highest, dwarfing the screen percentage. This is my first smartphone so bear with me if this is normal or I'm doing something dumb. My usage seems to be pretty normal by these board's standards, 30min talk, 20-40 texts, wifi on, and couple hours of gaming. (slow week at work!) I have installed Watchdog and it is running on moderate, although I must admit I don't really know how to use it to its full capabilities. I have attached some screenshots below, any advice would be greatly appreciated.
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Did you guys try disabling the bloatware and turn of Google location?if you're still on 4.2 you can use gsam battery monitor from play store. It gives detailed info on wakelocks and and what's keeping your CPU active.
Sent from my KitKat Ultra

Caseyk621 said:
Did you guys try disabling the bloatware and turn of Google location?if you're still on 4.2 you can use gsam battery monitor from play store. It gives detailed info on wakelocks and and what's keeping your CPU active.
Sent from my KitKat Ultra
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I have tried to get rid of the bloatware but they don't seem to be removable. I can stop them but they just restart later. I have just turned off locations so we will see if that helps. Will the program you mentioned work with Kit Kat? I am using DU Battery Saver at the moment. Thanks for the advice.

MrPlinkett said:
I have tried to get rid of the bloatware but they don't seem to be removable. I can stop them but they just restart later. I have just turned off locations so we will see if that helps. Will the program you mentioned work with Kit Kat? I am using DU Battery Saver at the moment. Thanks for the advice.
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Gsam Won't work on 4.4 unless you're rooted. So you can disable the bloatware easily. Go to app drawer long press on app you want to disable as if you were going to add it to the home screen. Drag it up and drop it on app info. You can disable it there. Some apostle it will ask if you want to revert back to stock. Select ok. Best part is you can't break anything this way! If you want to enable the apps go to settings....apps...and slide all the way over for list of disabled!
Sent from my KitKat Ultra

Bloatware has been gone for a while. I tried disabling location last night, but still have the same high OS usage today. Just installed GSam- on 4.4 but rooted- I'll post if it comes up with anything helpful.

Battery drain fix

Noticing your Galaxy S6 battery is draining too fast? This thread can help.
Part of the problem lies within a memory leak which is a known problem that Samsung is aware of and is reportedly patching in an upcoming update.
The other issue is Samsung attempts to load everything into memory and run several services in the background as well as hard loading the phone with bloatware.
Here is how I gained 30% better battery performance. Guaranteed
*Prerequisites
*Need to be rooted for every tip to work.
1. Disable anything you consider bloatware
2. Go to settings then application manager and disable both ANT radio service apps. You don't need this. Causes massive battery drain. Google it if you don't believe me.
3. Go to the app store and download "Servicely" from Franco. Paid app but worth the money...trust me. (Need root)
4. Once in servicely add running services and apps to your hit list, choose start at boot and run hit list while screen is off.
5. Reboot your phone. Give your phone a full charge and see the difference
Attached is a screenshot of realistic usage. I was on a poor lte signal for 9 hours and conducted several calls and used my phone moderately heavy. As you can see i got through my entire work day and still have 6 hours left at moderately heavy use.
Remember, this is realistic. I could have shown you a screenshot showing 18 hours left after only using it 1 hour. What I'm showing is a legit 9 hours of usage. Before I made these tweaks I would be at 10% battery or less after nine hours of the same usage.
Post your screenshots after 24-48 hours and let's see how much you are saving.
Follow me on twitter @bash_array

I decided to uninstall ANT. Not sure if its just me, but after just a few hours I think I can tell a difference already. The battery isn't just dropping like it was, especially when idle. I'll post my results from my full day tomorrow.
Sent from my gs6

greystealth said:
I decided to uninstall ANT. Not sure if its just me, but after just a few hours I think I can tell a difference already. The battery isn't just dropping like it was, especially when idle. I'll post my results from my full day tomorrow.
Sent from my gs6
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Awesome. Let all of us know how your battery drain is doing tomorrow

Thanks for the tip, it's funny I installed the Sac23 rom which is pretty debloated, I'd assumed this ant radio would be removed but never really checked, surely enough it's still there and active.
My battery has been noticibly better with Sac23 rom from stock but looking forward to seeing the increased benefits of disabling ANT+.

Are these the only 2 ANT apps we need to disable?

powerstroke said:
Are these the only 2 ANT apps we need to disable?
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I froze these 4 with Titanium backup

Battery life is worse on Nougat

Is it just me or is battery life worse on nougat?

Did you do a factory reset after updating?
Back up your data and do it. Use the Recovery Mode (Phone off -> Hold power / Vol Up and Home Key) and wipe Cache/Factory Reset.
If possible install everything fresh and don't use backups (except for messages etc of course). Especially on an Exynos model of the S7 Nougat's battery life should roughly equal or be better than Marshmallows, Snapdragon also, but since i don`t live in the US, i can't verify, since the majority of my friends and myself use the Exynos version.
Also check your apps for wakelocks and the like. Disable/uninstall apps not needed (for example if you don`t use Samsung VR/Gear, deactivate it. It will help improving battery life).
Other than that, enjoy nougat

I did a fresh install and battery life is horrible.

I am facing this too on the exynos variant after updating to Nougat via OTA. BTW what does formatting have to do with fast discharge after update? I mean it shouldn't make any difference.

try changing mode
is it possible that you might be constantly in high performance mode?
as it increases screen resolution and backlight , might be the cause of battery drain.

I've gone up from 5 to 5.5 hours SOT on MM, to 6 to 6.5 SOT on N. Should definitely be better.
Make sure you turn off all the junk like smart stay and gesture sensor crap.

I feel nougat battery life is better either.

Cusa said:
Is it just me or is battery life worse on nougat?
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My battery life is a JOKE after the upgrade (via ODIN) to Nougat. I did flash HOME_CSC to keep all my data. I've disabled all the extra settings, knocked the resolution down to 1920x1080 and made sure it's on optimized performance. I've also put every non-essential app to sleep mode. I do use my phone more than average, but I haven't gotten a whole day's battery yet. It also is back to burning 5-10% overnight night on cell standby that it wasn't doing with 6.0.1!!
I love the look and feel, but this isn't worth it for me. I use TrueCaller, so I don't need the advanced call blocking. I use Nova Launcher, so there's that. I haven't found another major advantage yet to outweigh the bogus battery life.
I'm going to wipe the whole phone and restore only text messages and see how that goes this weekend. :crying:

try reseting all app permissions by going to :
settings> applications> click on the 3 dots on top right> click reset app preferences.
now restart ur fone and enjoy the awesomness of nougat !
*please not that this trick will only benefit people who are having high android os or system drain by default ( or since the install of nougat), which could be caused by nougat new permissions conflicting MM.

Battery life idle drain had increased for me in nougat. Now get 4.5 hrs earlier never got below 5hrs sot.
Sent from my SM-G930F using Tapatalk

WOW I just can't believe how bad battery life is on Nougat. It has similar battery life with AOSP based ROMs that are early in their development. I was hoping that either the reports are not true but not only they are true but I wish I could show everybody how bad it is. I will flash Marshmallow back and stay there until this mess gets fixed. This is seriously scary, I can't believe they released the firmware at this state. Even more I hope they will eventually bother to fix it because something tells me they won't.

How bad it is for you? For me its bretty good. Today i put my phone to charge on 1% battery left. Before that i look battery usage. 49h online and 5h31min sot. I only use 4g not wifi
Sent from my SM-G930F using XDA-Developers Legacy app

I have atleast 6-8% draw per hour with it being in my pocket without any radios on or doing anything at all. This is a disaster. I flashed back MM and Ithink I'm gonna stay here. TBH I didn't like the changes in Nougat. I thought I would but I didn't. There are alot of stuff that make no sense to me but having a terrible battery life on top of that it's a deal breaker.
EDIT: Oh did I mention that this draw is with PSM on? Without it it's even worse!
Also I feel that PSM on Nougat is inferior to MM. It makes no sense.
Even worse is UPSM, the MM equivalent was better.
Ugh, I just really wanted to like Nougat but I'm so dissapointed.

Hi, I have G930T US t mobile variant of gs7, t mobile is pushing update cant turn it off. Last time when i had PG1 update battery life was awesome! at least 2 days of normal usage, after PK1 update phone was getting hot and battery became lasting for only 1 day! It is loosing power when i am not touching the phone average 5 persent in standby. So i am hoping after nougat my 2 day happiness of battery life comes back.....

Back on MM and battery life is day and night difference. It can't be on my mind. Went for jogging for a bit over an hour with music playing and it just went 1% down.

G930T. Yesterday updated to Nougat, after PK1 Nougat defenately wins in battery life. Phone is not getting hot, stable battery. After update battery was 70% so i got 23 hours of normal usage calls texting facebook + AOD with 70% battery. Perfect!

I am terribly disappointed at nougat. The battery drain at MM was 1 procent during 5 hours (!!!) with some tweaks but nougat is totaly crap.
I have 2 procent every hour with nougat at standby and after I have deleted a lot of bloat.
But I have a problem. When I go back to marshmallow by flashing via ODIN I cannot hear sound during calls. Why?

Also having battery issues since the Android OS update. My battery usage indicates 'Android System: 21%' and 'Android OS: 15%' which seems abnormally high. Have tried the 'reset app permission' solution that has been suggested and see how it goes.
This is very disappointing as I just got my S7 and had been enjoying great battery life until the Android OS update. Is there a consensus on a solution/any indication from Samsung as to a fix?
Thanks.

If you have battery issues try to disable Chrome and use the Samsung browser or Opera Mini or pretty much any other browser. Chrome is a battery waster of gargantuan proportions under Nougat for me. Only using another browser wasn't enough for me, I had to disable it in the settings.

Thanks. Actually Chrome hasn't been giving me problems. It seems that the 'reset app permissions' trick worked (OS and System items in battery usage window are back down to 2-4% which is as it was).
Thanks for help.

[OOS 5.1.8] Battery life got really bad somehow

As I've gotten my new oneplus 6, battery life was amazing. I got around 7-8 hours of sot (and average use) with one cycle.
Now I'm on 5.1.8 and with the same usage I get only around 3-4 hours sot. Only thing that I've changed over the weeks; I installed xposed. I don't know if this is the issue, cause I only ran like 3 modules with it (Greenify, Snaptools and NSFW Gboard)
Something else to say, my op6 is heating up more then it should be recently. Like I'm only using whatsapp and instagram, and suddenly it becomes uncomfortable warm.
In settings I also made all battery improvements, given in a thread here.
Can someone imagine what could be the problem? Or does someone have such an issue also? I uploaded some screens in attachments, maybe this is helpful.
Thank's!

Sometimes it can take a few days for a new update to settle down. If it keeps up, you might reflash. Also, check for rogue apps and wakelocks, which can flare back into life sometimes when you update. I have not noticed any real difference in battery life.

It hasnt made a difference imo for my device anyway. From changelog nothing should affect battery tbh. Maybe wakelocks or something plus running xposed with modules is never good from experience

Well I'm on 4G most of the day, I think this makes a difference because I only get such good results like 7 hrs sot when I'm on wifi. With Airplane Mode enabled I lose about 4% over night, I think this is normal or?

Noticed this as well with the update...
Even clean flashed

memocatcher said:
Well I'm on 4G most of the day, I think this makes a difference because I only get such good results like 7 hrs sot when I'm on wifi. With Airplane Mode enabled I lose about 4% over night, I think this is normal or?
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I have the same battery life as all the other part builds. Actually better since I just added ex kennel.
I stay on data, never WiFi since I'm on T-Mobile with unlimited and never get throttled. I loose about 2% overnight (about 7 hours) though I do keep my syncing under control. 1 email account is set for 3 hours, work is push, all under Google account is turned off since I only need calendar and contacts syncing when I make a new entry so I just manually turn sync on then back off. And I turn all background data off for everything other then what I need like messaging apps and email, Google app and that about it. Nothing to crazy but why let things sync constantly when there's nothing to sync?

For me, definitely thought 5.1.6 was the best for battery life.
Have you tried going into recovery and wiping cache? Worked for me.

hallo dare said:
For me, definitely thought 5.1.6 was the best for battery life.
Have you tried going into recovery and wiping cache? Worked for me.
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My best experience was on 5.1.7.

6+ SOT on all 3 builds so far.

Battery Drain on Android Pie?

Hi All--
I've been on the Android P Beta for a while.
However, starting with the final beta that was released (and now on the final version of pie) I've been experiencing really quick battery drain.
Tried a total wipe and restore, and the same thing. My wife (also the pixel) isn't having those issues at all.
Thoughts?
(nothing shows up in the battery section)

Yes, I had great battery life. Then once Android Pie was released, jumped on the beta to get 9 sooner. Then got the upgrade from beta to final and battery life is horrible. I did not factory reset, I have battery saver on and it doesn'tseem to matter. If I leave on standby, no issues. If I use the phone, it can bleed as much as 10% per hour! Unacceptable. I may try factory resetting, but idk...

have you allocated sufficient time for app battery optimization?

I also have a pixel, Android 9.0/Pie (bought it brand new three days ago) and think battery is draining very (!) quick.
Yesterday I had roughly 2.5 SOT (with battery saver enabled) and this seems consistent with what I can expect typically. I did factory reset and have tried restricting "background activity" for my frequent apps - seems to make no difference. Obviously it had not time to do full battery optimization yet I guess, but I doubt it would mean a that big difference?
Saw a thread where someone mentioned it seems CPU-freq is high/inc. very rapidly when just tapping the screen (GPU-0%), and I can agree with that although I have not the prev. experience of what to expect.
My previous experience is with Xiaomi mi6/mi5 (lineage 15.1), similar usage would give 2x or 3x SOT (however with some other hw-issues.. ).

perIpIx said:
I also have a pixel, Android 9.0/Pie (bought it brand new three days ago) and think battery is draining very (!) quick.
Click to expand...
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Reinstall factory image & see if that helps.

post-mortem said:
Reinstall factory image & see if that helps.
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Flashed factory image without -w/"wipe". Will that do or should it be "full" factory reset to make sense?

Thank you for your information, I will stay on Oreo.

perIpIx said:
Flashed factory image without -w/"wipe". Will that do or should it be "full" factory reset to make sense?
Click to expand...
Click to collapse
I don't think it would make a difference. The user data is on a different partition.
You could try flashing the image again, without Magisk or any other additions.

I had used up 50% with only 21 minutes screen on time.
I noticed the app Device Health Services, was constantly active in the background.

I had the same like the OP: everything was fine until the last beta came, and battery is draining faster, phone gets hot from even the smallest usage even in the prod release of android pie.
I was thinking it has something to do with being about 36 degrees (summer time....), but it is the same even in cooler temperature rooms. It's like if the phone is constantly doing something in the background, but only if I use it.

It has been a few days since I upgraded my Pixel 2. Battery life is noticably worse, maybe 20-30% more battery drain in a day than what I saw in Oreo.

I notice the issue as well. I did factory reset after update it's been a week. I was on beta and started noticing battery issues in the first beta and throughout. I decided to install Accubattery to track my battery usage and ended up with a result.
My phone states the battery is in good condition but this app says otherwise. I guess it's time to change the battery along with cracked screen!

i'm curious if my battery is shot as well... Seems like after I purchased my used Pixel.. the battery is not as lasting as I hoped for the smaller pixel phone... I may try one of those battery testing apps to see if it will tell me its current health..

I normally welcome up updates, but this update screwed up my battery life so bad. I mean everything was perfect until the update. Now the battery drains so fast I can watch the percentage count down like a timer and now when the battery gets anywhere from 15-40% the phone will just shut down.
I would like to go back to oreo, but it's such a pain in the ass having to back everything up and flash a ROM considering I haven't done that since before I bought the pixel

I have the same problem. I hope Google can fix it.

Wow, that is not normal. Stock android 9 with root and elemental kernel.... I go back to android 8.1.0 and wait for feature releases

I think I found an Draining App/Setting
I disable the RCS Service on my Phone. It can be found under Messages >> 3 dot Menu >> Settings >> broadcast News. Disable it.
And then Bluetooth and WiFi scan disable.

Same here, crazy idle drain after pie, only 50% deep sleep, tried factory reset and no luck

Try BetterBatteryStats. People in that thread spend their free time analyzing logs to tell you what's eating up all your battery life.

jambo89liam said:
I had used up 50% with only 21 minutes screen on time.
I noticed the app Device Health Services, was constantly active in the background.
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Click to collapse
Same problem :crying::crying: