Database Users

My Android OS drain culprit -

Edit: just so u know that that the process irq/325-k3g is causing the android os issue. Once again this process is only visible in the free app osmonitor. I let it run wild for couple of hours and it drained my battery excessively and also made android os go up to 50% battery usage. So it seems the culprit for the android os drain is process irq/325-k3g.
The process is just showing consumption when the drain happens and NOT all the time. So if u see your battery dropping quickly have a look to see if the process is consuming CPU . /Edit
Right, so ive observed lately that when my battery starts dropping % quickly that a process called irq/k325-k3g is consuming a lot of CPU.
This is only visible with the app osmonitor under process.
This randomly happens and seems to be triggered by the stock browser.
If the process kicks up it won't stop on its own, I can't stop that process in osmonitor and thus causing excessive battery drain cause it continousely uses cpu. The only way to stop this process is by killing internet (browser.apk).
I had the same problem on all roms I've tried so maybe someone else suffering from this find this helpful.
This doesn't solve the root of the problem but atleast its a temp fix.
Any feedback appreciated.
Sent from my GT-I9100 using Tapatalk

i feel your pain , i am getting almost 10% drain per hour

So nobody experiencing battery drain caused by the above process?
Sent from my GT-I9100 using Tapatalk

The problem is that everyone is quite about this problem. Battery life is rubbish and no one is putting forward any advice or detailed fix for the problem.
So back to your solution mate, does this process work when you use opera mini? I never use the stock browser.
Kind regards,
Sul

A coworker showed me his SGS2 today : uptime 2days 23h and still 39% battery remaining..
config :
1) No airplane mode
2) No wifi at all
3) No gapps autosync
4) No task killer
5) some phone calls (20 minutes), a few sms and browsing. A little gaming too..
I have the same config : but poweroff after 1d and 6 hours...
irritating

I've had 2 different units and found the battery life to be awesome on each one. I'm wondering whether users previous handsets are coming in to play i.e. are they coming from Blackberrys or old Nokias?
Quietness on a certain issue tends to point to most people not suffering from it.
Regards.

MoxFulder_CH said:
A coworker showed me his SGS2 today : uptime 2days 23h and still 39% battery remaining..
config :
1) No airplane mode
2) No wifi at all
3) No gapps autosync
4) No task killer
5) some phone calls (20 minutes), a few sms and browsing. A little gaming too..
I have the same config : but poweroff after 1d and 6 hours...
irritating
Click to expand...
Click to collapse
why he did not got a usual phone .
The problem is the huge battery drain in idle mode , i had a galaxy s before the drain was 1.5% per hours now i am getting 8-10% per hour
a non sense

To be honest I thought my battery life on my Nokia N900 was crappy, max 2 days, usually though 1 1/2 days but coming on to my first Android, battery lasts me less than 17 hours on average lol
I was surprised, I was expecting more actually considering it is a more mature OS than Maemo, might have better battery management. Guess I was wrong haha.
That said I keep my phone charged to my PC when ever I am at work so it doesnt really bother me much.

Ever thought that maybe you've all got an awesome phone, maybe just playing with it quite a lot more than you would have any other phone.
I know i am, but when i had a day off playing it lasted 2days with 37% left.
Sent from my GT-I9100 using XDA App

Sorry guys, this thread is about some rogue system process that causes battery drain, possible triggered by the browser, very specific issue.
so please lets not turn this into a typical "my battery is bad/good" thread.
Sent from my GT-I9100 using Tapatalk

All I can say is a factory reset doubled my battery life and fixed my problems

An explantion by a google engineer for the battery drain issue:
Comment 297 by [email protected], Apr 7, 2011
A problem has been identified in the driver for the wifi device on the Nexus One (bcm4329). The problem can cause the phone to repeatedly enter its suspend state and immediately wake up, resulting in a severe degradation of battery life. The problem has only been observed on Nexus One running the Gingerbread updates to the wifi driver and device firmware, although the driver is used in other phones as well. A fix is in the works, but I don't have information on a release at this time.
Turning off the wifi device, or modifying the wifi sleep policy to never sleep, may avoid the problem in the meantime.
http://code.google.com/p/android/issues/detail?id=15057#c297

Locster126 said:
Sorry guys, this thread is about some rogue system process that causes battery drain, possible triggered by the browser, very specific issue.
so please lets not turn this into a typical "my battery is bad/good" thread.
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Good luck..... I'll drop in when the thread has hit 10 pages of random battery chat and try and find a mention of the relevant process!
Seriously though, I'll keep an eye on the process and see if I notice what you say in the OP.
Regards.

Here is a more exhaustive explanation:
Comment 261 by [email protected], Apr 20, 2011
@nsbu: The message about "'uart_clk' not off" looks alarming but is actually harmless -- this clock doesn't prevent the SoC from suspending, and this message always appears at suspend time in Android kernels running on Qualcomm MSM chipsets. (If other clocks were listed here then those could represent a problem.)
Similar to a previous report on a T-Mobile myTouch 4G discussed here, the data logged on wakeup reasons needs to be interpreted by the OEM that has the hardware specs for the phone and the Qualcomm radio firmware source that generates some of that info. HTC is the OEM for that phone; their support site is http://www.htc.com/us/support . Or try the T-Mobile support site at http://support.t-mobile.com/viewAllProducts.html , they seem to sell this device under their own brand.
In case anyone's confused, it's recognized that some phones do have battery life problems that stem from: (a) not properly suspending to low-power states and, (b) continually attempting to suspend and resume, burning CPU in the suspend thread. The causes tend to be due to devices continually generating interrupts (that might not be properly handled by device drivers and hence continue to be generated), or drivers rejecting suspend for conditions that should be short-lived but instead persist for long time periods. In many cases the drivers involved are written by OEMs and Google does not have any knowledge of the drivers or devices causing the problem -- the folks who made the phone need to take a look.
Problems with the Google Nexus One described in another issue referenced in previous comments fall in the same category, and in that case we have the hardware and the design info needed to diagnose the problem (wifi driver interrupt handling problem), and a fix is on the way.
http://code.google.com/p/android/issues/detail?id=11126#c261

Well, for me the battery is good. I don't use phone much for gaming and surfing but there are a lot of calls, maybe 3-4 hrs of call time or more. Also I keep quitting running services like social hub, voice command etc.
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yudi7 said:
Well, for me the battery is good. I don't use phone much for gaming and surfing but there are a lot of calls, maybe 3-4 hrs of call time or more. Also I keep quitting running services like social hub, voice command etc.
View attachment 625221
Click to expand...
Click to collapse
Voice calls isn't a way to check your battery life. As soon as you hold the phone near your ear, screen turns off. For proper checking, you have to surf internet via Wi-Fi/3G, play Games, watch Movies etc..Just keep the screen on. I think if you even talk 6/7 hours per day (and do nothing else) then the GS II will last for more than 2 days, surely. Voice calls can't be a way to check battery, for any phone.
Regards.

ithehappy said:
Voice calls isn't a way to check your battery life. As soon as you hold the phone near your ear, screen turns off. For proper checking, you have to surf internet via Wi-Fi/3G, play Games, watch Movies etc..Just keep the screen on. I think if you even talk 6/7 hours per day (and do nothing else) then the GS II will last for more than 2 days, surely. Voice calls can't be a way to check battery, for any phone.
Regards.
Click to expand...
Click to collapse
Yes I know voice isn't a way to check battery. But like I said its good for me. I previously had iPhone 3G which I used like I use my GS2 and it gave me hardly 5-6 hrs usage of battery. So happy with GS2. I'll test my battery life by playing games and surfing and all that and I'll let you know the result.

yudi7 said:
Yes I know voice isn't a way to check battery. But like I said its good for me. I previously had iPhone 3G which I used like I use my GS2 and it gave me hardly 5-6 hrs usage of battery. So happy with GS2. I'll test my battery life by playing games and surfing and all that and I'll let you know the result.
Click to expand...
Click to collapse
That would be kind of you.
For me, on Wi-Fi, at Auto Brightness in stock browser, with SetCPU set in Ondemand mode, battery drains at a rate of 18-20% per hour (I don't let the screen off). Lets see if yours are better or not

i'm very happy with my battery performance.
__________________
Device: Galaxy S II
ROM: Lite'ning Rom v1.4 - overclocked to 1.4GHz
Kernel: CF-Root v.3.8 XWKF1
Previous Phone: Galaxy S

ammarselo said:
i'm very happy with my battery performance.
__________________
Device: Galaxy S II
ROM: Lite'ning Rom v1.4 - overclocked to 1.4GHz
Kernel: CF-Root v.3.8 XWKF1
Previous Phone: Galaxy S
Click to expand...
Click to collapse
As we don't know your happiness level I'd ask you to please mention some technical details, like how long your battery lasts or else? If possible post a Battery usage screen shot also.
Regards.

Sudden battery drain & hot phone; CM7, CM9

In general, the battery is very good on the Galaxy S.
But, I have been having a strange battery problem since CM7:
The phone would suddenly heat up (near the upper back portion of the phone; near the camera) and the battery would drain very fast.
Currently running CM9, 20120330-NIGHTLY-galaxymtd, stock kernel.
Phone model: Samsung Galaxy S i9000
Radio (baseband): I9000XXJVK
CM version: 9-20120330-NIGHTLY-galaxymtd
CM Download url: http://download.cyanogenmod.com/?device=galaxysmtd
Gapps version: gapps-ics-20120317-signed
Did you--
wipe: No
restore with titanium backup: No
reboot after having the issue: Yes (1st screenshot, rebooted, 2nd screenshot)
Are you using--
a task killer: No
a non-stock kernel: No (Stock)
CMSettings/Performance settings (other than stock): All Stock
other modifications: None
I am unable to consistently repeat this bug.
On average, it occurs once a week,
4th May 2012:
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2nd pic:
A = Normal usage (you can see the gradient varies with higher/lower phone use)
B = Airplane Mode overnight
C = Normal usage
D = Strange super fast battery drain
From times provided, there is a 14% loss in battery in 37mins 38secs, which gives a battery drain of 22.3% per hour.
The phone would last less than 4.5 hours.
You can see that the phone is not being used from the Screen On bar. The phone was simply sitting on my desk at work.
Normal usage drain would suggest less than 10% per hour.
***
Now, I have always assumed it was a CyanogenMod bug. But recently found out that a friend's Nexus S (stock everything; 4.0.4) also suffers from a bug with the same outcome. I have an inkling that the problem may be Android based, but I have no way to be sure.
Is this a CyanogenMod problem? Could it be an Android bug?
Is the problem isolated to the Galaxy S and Nexus S?
For a while, I thought that toggling Airplane Mode will halt the quick battery drain. However now, I'm pretty sure that it has no effect.
***
I have tried aLogcat, hoping to see one process getting hammered repeatedly but there doesnt seem to be anything suspicious happening.
Is there anything I can do to see what the problem might be?
Are there any other apps that could reveal the problem?
I haven't yet found an official bug post similar to this yet, so please post it if you find anything similar. (Posts like "OMGz batry porblems!" dont really count)
***
Lastly, before anyone blames me for downloading crappy apps which have caused the problem, I only have 35 installed apps, and I stick to the popular ones: AirDroid, aLogcat, Angry Birds Space, Barcode Scanner, BBC News, Chrome Beta, ES File Explorer, Facebook, GMail, Google Finance, Google Goggles, Google +, Instagram etc...
The less popular ones are: Ice Cream Sandwich Clock, Shareprice
Thanks! Hopefully, we can get this issue sorted.

Never heard of that problem before. You should look if it also appears on stock ROMs and on CM without any apps(only the one you really need. But I guess it's a hardware issue.
--------------------------------

Is it just me or does your mobile network signal show a weak signal whenever your battery starts to die?
Sent from my GT-I9000 using xda premium

It could be many things...but I'd be suspicious of apps... Facebook transfers a lot of data in the background for example and I'm not even sure they updated for ICS yet.
I'd try logging out of those apps before you get to that level of battery drain and see if it still happens.
Sent from my GT-I9000 using Tapatalk 2

Same Issue
I have the same issue. The phone is not in a case while charging. The metal plates that keep the SIM card and the SD card get very hot to the touch. Sometimes the battery percentage gets stuck, so I have to let it cool down before continuing to charge.
Does anyone a way to fix this?
I'm using a Galaxy S GT-I9000M running Cyanogenmod 9 Nightly 20120503.

electrona said:
I have the same issue. The phone is not in a case while charging. The metal plates that keep the SIM card and the SD card get very hot to the touch. Sometimes the battery percentage gets stuck, so I have to let it cool down before continuing to charge.
Does anyone a way to fix this?
I'm using a Galaxy S GT-I9000M running Cyanogenmod 9 Nightly 20120503.
Click to expand...
Click to collapse
My situation occurs when it is NOT charging.
Any phone is bound to heat up when charging, its normal?
I'm more concerned with the 22% drop per hour.
Leegalaxy said:
Is it just me or does your mobile network signal show a weak signal whenever your battery starts to die?
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
You're suggesting that whenever "Mobile network signal" turns red it occurs?
I'll look out for it if/when it occur again.
Any ideas what it could be if it were the case?
Polling to connect too often?
(I assume "Mobile network signal" refers to 2G and 3g signals?)
Thanks.

+1 from cm9 502

With 0503 my phone is draining only when I start using Internet. The draining is about one percent per minute (very fast).

gabor977 said:
With 0503 my phone is draining only when I start using Internet. The draining is about one percent per minute (very fast).
Click to expand...
Click to collapse
When using the phone you would expect the battery to drain faster.
Try to take a larger percentage loss over a longer period of time; it isnt very accurate using tiny numbers.
My phone was more or less idle for the duration of 22% loss per hour (you can see when the screen was on via the relevant bar).

I have the same problem too.
I don't know why. It's just have battery drain and hot with cm9 or miui.

mobydeek said:
My situation occurs when it is NOT charging.
Any phone is bound to heat up when charging, its normal?
I'm more concerned with the 22% drop per hour.
You're suggesting that whenever "Mobile network signal" turns red it occurs?
I'll look out for it if/when it occur again.
Any ideas what it could be if it were the case?
Polling to connect too often?
(I assume "Mobile network signal" refers to 2G and 3g signals?)
Thanks.
Click to expand...
Click to collapse
Yes exactly. The phone begins polling the mobile 2/3G network and begins sucking power. I'm not sure how or why that would cause such drastic drops in battery but the graph seems to suggest that they are connected in some way. Data is known to drain power and if the system is repeatedly attempting to connect to mobile data while the signal is weak it may take more resources.
I could definitely be wrong here. Just an observation.
Sent from my GT-I9000 using xda premium

+1
the back side and the middle-top of the screen overheats like around 50° C while in 3g, even if i have it in the pocket.
i have UGKG3 modem bcz i need 850mhz band and it happens since CM 7.1
I admit it, i had the data sync on.

Gildegan said:
+1
the back side and the middle-top of the screen overheats like around 50° C while in 3g, even if i have it in the pocket.
i have UGKG3 modem bcz i need 850mhz band and it happens since CM 7.1
I admit it, i had the data sync on.
Click to expand...
Click to collapse
Well, data sync is supposed to be on.
Its the battery drain that isn't supposed to happen.
Any one know if this occurs on Stock Nexus S's and the Galaxy Nexus?

mobydeek said:
Well, data sync is supposed to be on.
Its the battery drain that isn't supposed to happen.
Any one know if this occurs on Stock Nexus S's and the Galaxy Nexus?
Click to expand...
Click to collapse
I was under the impression that your friend's nexus s had the same problem as per the OP...
Sent from my GT-I9000 using xda premium

Same thing here... Battery drains fast! v504 i9000
gabor977 said:
With 0503 my phone is draining only when I start using Internet. The draining is about one percent per minute (very fast).
Click to expand...
Click to collapse
+1 on CM9 0506 battery drain (1% per minute)
I know for a fact my phone is not the problem cause this bug does not happen on Gingerbread ROMs paired with Semaphore Kernel.
I also have a pair of Anker 1,800mAh batteries, plus the original 1,500mAh Samsung one and they are all draining really fast on both HSDPA/3G and 2G networks. Under WiFi it drains a bit slower. About 1% every 5 - 8 minutes or so (with screen always on as well). I live in Brazil and I use TIM 3G+ as carrier.
By the way, my phone heats up A LOT while I'm using the browser or Facebook App internet without WiFi, just using the 3G network. But I've also noticed that Facebok app had almost 30% of battery usage. Since it's the app I use the most. It didn't use to be that way on GB ROMs. But after the recent Facebook updates I wouldn't be able to tell since I've been using ICS CM9 nightlys for over over 3 weeks now.
Every time I install a new nightly I make sure to wipe cache as well as dalvik cache. I do that procedure both before and after installing a new nightly ROM.
The only thing I changed is the launcher. I use APEX Pro 1.1.1 instead so I can backup my settings and desktop apps if something goes wrong and I happen to do a full wipe.
I'm running latest update-cm-9-20120506-NIGHTLY-galaxysmtd-signed.zip with stock, default kernel. No Overclock or any other mods.
Other than that, I think this is the best ICS for my i9000. I experience no FC's and no Low Storage problems. The albums are not quadruplicating my photos like other ROMS and the compass works great on Google Maps. By the way, 3D gaming is just great with v504. Real Racing 2 runs nice and smooth on it.
Thanks for the great work Devs and sorry for making this too lengthy.

Leegalaxy said:
I was under the impression that your friend's nexus s had the same problem as per the OP...
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
I can't really be sure. I haven't checked their battery stats at the time of the drain, so all I'm going on is that they agree with my description.
He'a a bit of a noob so I'm not sure if hes just agreeing for the sake of agreeing.
(I know... a noob with a nexus... )
***
Following from your comment about Mobile network signal polling. You would expect a toggling of Airplane mode to disrupt the battery drain, right?
I definitely toggled it during the fast drain... maybe toggled too quickly for the network to shut off
Will try it again, if/when the fast drain occurs again.

Heavy battery drain and heat up
Hi, same problem just started yesterday
using MIUI experience v5 and evrything was fine since phone rebooted automatically and now charging is very very slow, also getting heavy battery drain and heat up, 20% in an hour. After 4 hours of charging, it stays 30-40% and heat up much more then before. tried full wipe and reinstalling different Roms and kernels but same .... any help much appreciated

moodi_ali said:
Hi, same problem just started yesterday
using MIUI experience v5 and evrything was fine since phone rebooted automatically and now charging is very very slow, also getting heavy battery drain and heat up, 20% in an hour. After 4 hours of charging, it stays 30-40% and heat up much more then before. tried full wipe and reinstalling different Roms and kernels but same .... any help much appreciated
Click to expand...
Click to collapse
Does it happen with the data on,off, airplane mode...?
It usually corrects with a reboot
Sent from my GT-I9000 using Tapatalk

I also hate that the screen isnt a sharp, vivid and bright than the samsung roms, even playing with voodoo colors if the rom have it thats why im sticking with stock gb jw4
Sent from my GT-I9000 using Tapatalk

Gildegan said:
I also hate that the screen isnt a sharp, vivid and bright than the samsung roms, even playing with voodoo colors if the rom have it thats why im sticking with stock gb jw4
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
Have you tried the mDNIe Mode settings in:
System Settings > Advanced ?
CM9 >>>>>>>>>>>>>>>> Samsung Stock
***********************************************
Anyway enough of the derailing...
For the people who get this fast drain issue:
1. Is your phone connected to Wifi when the fast drain occurs?
2. Are your Wifi settings set to Always Keep Wifi on during sleep?
Could you try setting Wifi to Never use wifi during Sleep?
System Settings > Wifi > Menu > Advanced Keep Wifi on during sleep = Never
And then report back!
Is it possible that Always using Wifi during sleep, even when you are not connected to a router, can cause the battery drain?
This is only a guess, but I'll run this little experiment too. Maybe we are getting somewhere?...
Thanks.
EDIT: I believe Google have inverted the wording on this. On 2.3 it mentions Wifi Sleep... and now its Keep Wifi ON during sleep.
I am suggesting turning it to "Never (increases data usage)"... [as opposed to Wifi Sleep = Never]

Android OS draining battery?

Well my nexus has been giving me 5 hours SOT for the longest time, but just randomly, it decided to start dying really fast. I checked battery stats, and sure enough, android OS is the killer here. I'm aware android OS drains are usually because of apps installed, but I haven't installed anything new or suspicious any time recently. I even did a full wipe and reinstalled the rom I'm running.
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Are any of these apps known battery drainers?
Here's my battery shots.
Anyone know how to troubleshoot which apps are killing my system? I'm running CM 4/22/13 and franco.kernel r127 if that makes any difference.
Thanks guys!

If your phone has been on standby for that long then obviously androidos will be up there since nothing else has been working your battery. Post the pics so I can clarify this.
Sent from my Nexus 4 using xda app-developers app

Eddy130306 said:
If your phone has been on standby for that long then obviously androidos will be up there since nothing else has been working your battery. Post the pics so I can clarify this.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Updated OP

Eddy130306 said:
If your phone has been on standby for that long then obviously androidos will be up there since nothing else has been working your battery. Post the pics so I can clarify this.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Nah because when it happened (at least for me) the battery drain was sudden and drastic.
All day Screen was at the top, then all of the sudden in the evening Android OS went from 15% to 74% in about 15 minutes.

ingenious247 said:
Nah because when it happened (at least for me) the battery drain was sudden and drastic.
All day Screen was at the top, then all of the sudden in the evening Android OS went from 15% to 74% in about 15 minutes.
Click to expand...
Click to collapse
Pretty much my scenario

android os thing happened to me, i think for me it was because it was trying really hard to connect and stay connected to the bad wifi at my school, turned off wifi and the drain stopped. not sure about ur situation though

http://forum.xda-developers.com/showthread.php?t=1179809
This might just help you out. It'll show you any partial and kernel wakelocks and which processes are causing it.
I had this problem a while ago, so I did a clean install of my rom and apps and the problem was gone. If you can pinpoint the app that's causing your phone to stay awake, you can avoid having to do what I did xD

Really weird... this has been happening to me too, but not as drastic as yours (still a good chunk)
I just reflashed my ROM just in case that was the problem.
Also when I used better battery stats to see what's going on, all it showed me was the power manager thingy. Which showed me nothing.
Sent from my Nexus 4 using Tapatalk 2

kyokeun1234 said:
Really weird... this has been happening to me too, but not as drastic as yours (still a good chunk)
I just reflashed my ROM just in case that was the problem.
Also when I used better battery stats to see what's going on, all it showed me was the power manager thingy. Which showed me nothing.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
That's all it ever shows when it comes to Google services jacking up the phone. Kind of convenient for Google since we can't pin down/point blame for the issue
Sent from my Nexus 4 using xda premium

Turning off WiFi when idle at school seems to have helped. I did notice that when I got to my house it seems the battery drain is more normal. Maybe it really is because the WiFi is just slow.
Sent from my Nexus 4

ingenious247 said:
Nah because when it happened (at least for me) the battery drain was sudden and drastic.
All day Screen was at the top, then all of the sudden in the evening Android OS went from 15% to 74% in about 15 minutes.
Click to expand...
Click to collapse
did you ever solve this problem? or find out what caused it?

I had a similar issue. My phone would not deep sleep. Yet things would work fine when I wasn't on WiFi. A reboot of my WiFi router fixed it.
Sent from my Nexus 4 using Tapatalk 4 Beta

I got the same problem here with my I9305 after updated to 4.3
It has a bit improvement after I disabled the ALWAYS WIFI SCANNING, and sync

[SOLVED!!]
i have this problem with my galaxy grand phone ,the battery discharges in 20hr , default OS was 4.1.2 official samsung , i changed my rom into a slim custom rom based 4.2.2 , but the battery has same problem again , Android OS battery Usage Was 80% !!!! and screen usage just was 9% !
my installed software :
Viber
WeChat
MyKet {Like Android Market}
Weather Widget
i used wifi 1-2 hour in a day ,
=================================
[SOLVE]
first go to Settings -> Developer Options -> Apps Tab -> checked Don't keep activities
set brightness to auto
then go to location services -> off access my location
then go to wifi -> advanced Wi-Fi -> keep wi-fi on during sleep -> change to Never
now go to application manager -> Running Tab -> Force stop some apps with extra ram usage like settings
my phone just uses 5% battery in 13hr sleep mode ; ENJOY!

ohhacker said:
then go to wifi -> advanced Wi-Fi -> keep wi-fi on during sleep -> change to Never
Click to expand...
Click to collapse
I think if you only do this you will solve the problem.
At least for me my only problem with "Android OS" is when sleeping my phone and having "keep wi-fi on during sleep -> Always".
I have franco kernel and cannot check the kernel wakelocks but I test some days with CM kernel and didn't see any kernel wakelock that consumes too much battery... but maybe some of you have this problem: http://hardforum.com/showthread.php?p=1039838404

Wow, what a surprise... I solve my own problem with my last reply xD
I mean, when I installed CM months ago I select "keep wi-fi on during sleep -> Always" because I thought that if I don't do this I will not receive any notification. The fact is that when putting "Never" Android OS was CPU active mostly the 80-90% of time my phone was sleeping and Wifi ON and now with "Always" (or when plugged) has CPU active like 20-30%... AND I receive notifications also.
Probably when downloading a large data If I put my phone to sleep It will stop download, I didn't try.
One thing I don't understand is that when sleeping it doesn't use mobile data (as it says "Increases data usage"), even I have data and wifi on.
So, if I get notifications in both options ("Never" and "Always") and I get less battery drain with "Never" I prefer "Never".

mierda1 said:
Wow, what a surprise... I solve my own problem with my last reply xD
I mean, when I installed CM months ago I select "keep wi-fi on during sleep -> Always" because I thought that if I don't do this I will not receive any notification. The fact is that when putting "Never" Android OS was CPU active mostly the 80-90% of time my phone was sleeping and Wifi ON and now with "Always" (or when plugged) has CPU active like 20-30%... AND I receive notifications also.
Probably when downloading a large data If I put my phone to sleep It will stop download, I didn't try.
One thing I don't understand is that when sleeping it doesn't use mobile data (as it says "Increases data usage"), even I have data and wifi on.
So, if I get notifications in both options ("Never" and "Always") and I get less battery drain with "Never" I prefer "Never".
Click to expand...
Click to collapse
You say you receive notifications even with the "never" option, but are you sure its not using your cellular data connection instead?

I've experienced similar problem with GS4 after 4.3 update
I've experienced similar problem with GS4 after 4.3 update
There is a bug in google backup service, google backup service acquires wfii connectivity lock and does not release it for hours which prevents device entering deep sleep and as a result drains battery. Fortunately you can disable backup in Settings->Accounts->Backup and Reset-> uncheck 'Backup my data'. This should resolve the issue ... after a full recharge monitor your battery stats - Android OS should NOT be on the top.
Click to expand...
Click to collapse
Sorry disabling backup didn't help - encountered the same problem. There is indeed a bug that some OS module that holds a wlan lock but it's not a backup service. I suspect that full charge triggers this flow. Device restart will temporarily fix the issue. I'll post if i will find the causer, sorry for mislead.
Download this application it will resolve the problem till google fix it. h_t_t_p://kvant.store.aptoide.com/app/market/com.kvant_hv.BatteryLeakResolver/7/4579526/Battery%20Leak%20Resolver%20(OS%204.3)

HIGH battery drain

Hello guys,
yesterday I rolled back from N to MM in order to install a fresh MM and install the N again and I still have high battery drain where Android System and AndroidOS are top battery consumers. I have high drainage when I am not using the phone too, and its not even connected to the internet too. Few days ago for two hours of not using the phone I had around 30% battery drain and I think that's not normal at all. I think that the phone is draining less battery when I am using it than I am using it...
As I said before, I have freshly installed Nougat b371, I am not rooted and the bootloader is locked.
I thought it was because I tried to install the b381 300mb version but it failed installing it and I thought it was part b371, part b381 and that was causing some problem with that and that's why I installed a fresh version of MM but that's not working too and I don't know what to do now. If you can guys help me It'd be awesome!
And I also these days never have 4g, only H+ and its losing the connection and it automatically reconnects after few seconds and I don't know why. Before I always had 4g... The fresh MM didn't solved that problem. Do you think that b381 failed installation somehow misfigured something?
And a screenshot of the consumption level.
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Wasn't H+ the symbol of 4G?

Johnny TDN said:
Wasn't H+ the symbol of 4G?
Click to expand...
Click to collapse
Before I had 4G symbol, now I have H+. And sometime it changes to 3G but thats rare.
I dont mind the H+, but it annoys me that it disconnects all the time and reconnects after few seconds...

Disable the Google app and go to phone manager،tap cleanup then tap on the option icon on the upper right of the screen. Now tap memory clean up whitelist ,and uncheck all of the apps (recommend) or just uncheck all except the apps you don't want to close like messenger ..etc. Now go to phone manager and wait for it to load then click optimize. You'll notice a huge difference.

Tech.San said:
Disable the Google app and go to phone manager،tap cleanup then tap on the option icon on the upper right of the screen. Now tap memory clean up whitelist ,and uncheck all of the apps (recommend) or just uncheck all except the apps you don't want to close like messenger ..etc. Now go to phone manager and wait for it to load then click optimize. You'll notice a huge difference.
Click to expand...
Click to collapse
Disabling Google app is just like a default thing I am doing after factory reset, hahah. And I also unchecked the apps before, its like a normal thing to me after installing all the apps I need after a factory reset. The thing is the android is draining too much battery and I was asking for a way to somehow reduce it, because even if I am not using the phone it drains the battery for more than 15%, not a couple of percents... I will do a test this night and I will let you know tomorrow.
And also the phone is getting hotter than before...
That's why I did a rollback and installed all new MM, like it came from a store, to see if that'd help but nothing...

My phone had battery drain when I disabled google backup transport.
I don't use google backup. Everything is disabled, but since I enabled it, battery drain is gone.

drisena said:
My phone had battery drain when I disabled google backup transport.
I don't use google backup. Everything is disabled, but since I enabled it, battery drain is gone.
Click to expand...
Click to collapse
Ummm... in my phone Google Backup Transport is already enabled...

Went to sleep at 4:00am and my phone had 90% od battery and woke up at 11:45am and I had 43% battery. Thats 47% battery drain over night.
HELP?
I also installed gsam battery monitor and combined app cpu was the highest battery drainer with 76%...
Maybe to try deleting EVERYTHING from TWRP and flash a zip file of emui 4.1? If thats better than a normal factory reset I would try that too, because factory reset didnt solved my problem...

I have the same issue on B360.
Phone Idle in Hardware Section and Android OS in software drains alot during standby. Android OS keeps the system awake.

I think they played around with the cpu governor since they removed the battery performance mode.

Hey guys, i found a bug with wifi i think, i tried with latest LOS, RR, OMNI and SLIM roms (meticulus)
I found that in my case, the battery drain comes from the wifi not turning off when the phone is asleep, regardless any saving options i tick.
I discovered it while checking my wifi router, i saw my phone listed but it was un plugged from charger and locked.
I unlocked my phone and surprise, the wifi icon was already here full and ready now i'm searching a rom without those issues as i'm sure it did not do that when i flashed my first roms on this device (CM13 i think)
can some of you guys double check this issue so i can know if it's related to my device only ?

mchtt said:
Hey guys, i found a bug with wifi i think, i tried with latest LOS, RR, OMNI and SLIM roms (meticulus)
I found that in my case, the battery drain comes from the wifi not turning off when the phone is asleep, regardless any saving options i tick.
I discovered it while checking my wifi router, i saw my phone listed but it was un plugged from charger and locked.
I unlocked my phone and surprise, the wifi icon was already here full and ready now i'm searching a rom without those issues as i'm sure it did not do that when i flashed my first roms on this device (CM13 i think)
can some of you guys double check this issue so i can know if it's related to my device only ?
Click to expand...
Click to collapse
I didnt had something like that while I was using b371. When I turned the Wi-Fi off it was off.
In my case I think that there is something screwed up with the mobile network and causing battery drain and warming up the phone...
Maybe I will try a new rom, to see if the problem will be still there.

mchtt said:
Hey guys, i found a bug with wifi i think, i tried with latest LOS, RR, OMNI and SLIM roms (meticulus)
I found that in my case, the battery drain comes from the wifi not turning off when the phone is asleep, regardless any saving options i tick.
I discovered it while checking my wifi router, i saw my phone listed but it was un plugged from charger and locked.
I unlocked my phone and surprise, the wifi icon was already here full and ready now i'm searching a rom without those issues as i'm sure it did not do that when i flashed my first roms on this device (CM13 i think)
can some of you guys double check this issue so i can know if it's related to my device only ?
Click to expand...
Click to collapse
Phone Manager-Battery-Settings-Keep wifi while sleeping.

Johnny TDN said:
Phone Manager-Battery-Settings-Keep wifi while sleeping.
Click to expand...
Click to collapse
lol, yes man. does not work, i can choose any options it does never turn off the wifi while the phone is locked...
so i'm trying to do a task (tasker) to auto turn off wifi when the screen is locked.

Installed MM again yesterday, rooted the phone and installed Better Battery Stats and here are the results after the night. I had a battery drain of 30% over night.
Here are the results of the BBS.
A solution?
http://imgur.com/a/OcdE7
(Scroll down for more screenshots)

ZeusftW97 said:
Installed MM again yesterday, rooted the phone and installed Better Battery Stats and here are the results after the night. I had a battery drain of 30% over night.
Here are the results of the BBS.
A solution?
http://imgur.com/a/OcdE7
(Scroll down for more screenshots)
Click to expand...
Click to collapse
xx wrong xx

hi, I have similar problem, during night 10-15 percent of battery drained.
i think the cause is either the google account sync, some google apps or google backup functionality.
according to power manager, the phone is awake and also OS has the most percentage in consumption.
i dont have root, do someone figure that out or at least found out the reason?
thx

7hit said:
hi, I have similar problem, during night 10-15 percent of battery drained.
i think the cause is either the google account sync, some google apps or google backup functionality.
according to power manager, the phone is awake and also OS has the most percentage in consumption.
i dont have root, do someone figure that out or at least found out the reason?
thx
Click to expand...
Click to collapse
I fixed my issue by changing the mobile network to 2G/3G, not using the 4G and for some reason that was causing some problems with the battery drainage.
I rooted the phone and installed Better Battery Stats (which is working with non-rooted phones but using adb) but I couldn't make it work so I rooted the phone only for that, to see what was draining my battery so much with a lot of help of @pilgrim011.
If you have a problem with the 4G as I mentioned before, try disabling it and check the results after.
And I don't think that google's backup and sync apps were causing drainage because they obviously need an internet to work, or to back things up to be simple. If I am not wrong, haha.
Hope you'll find a fix for your problem.

Ok,going to try and get back with results

Ok so i am back, and have bad news. But at least i am seeing a pattern in behavior.
Last evening i charged phone to max, before sleep ir was ok - android os little drain, android apps bigger.
After night the battery dropped from 97 to 79%, like last time i charged to max, the system was awake regurarly and all drained by android os.... i only happens during tje first night, do you have any ideas?

Mi a1 battery draining

My device mi a1 after upgrading to Oreo 8.0 baterry draining so fast I have to charge twice/thrice a day.how to fix this issue?.and I really hate this problem.if I know that when I get Oreo update with this problem I will not update my phone to oreo.if this problem will be still facing with the security patch level of April and May I will downgrade my phone to nougat. I will never trust xiaomi product if I still facing this battery draining problem.

Semioner said:
My device mi a1 after upgrading to Oreo 8.0 baterry draining so fast I have to charge twice/thrice a day.how to fix this issue?.and I really hate this problem.if I know that when I get Oreo update with this problem I will not update my phone to oreo.if this problem will be still facing with the security patch level of April and May I will downgrade my phone to nougat. I will never trust xiaomi product if I still facing this battery draining problem.
Click to expand...
Click to collapse
Battery draining is subjective to personal use. I never heard problems like this with battery. You should have a rough app, or more than one, that is affecting the battery. Try finding that/those apps with a battery monitor app.
You'll get more help if you ask in an appropriate thread in the forums rather then creating a new one on this topic. Just a kind suggestion.

I agree with OP, i bought this phone Feb 15 and im STILL having problems with rapid battery drainage even when not using the phone! updated the phone already how many times and im on the latest build 9.5.9.0. I tried a hard reset last night, erased everything just so i can test if battery will improve, and it sadly didnt, it was still draining the battery quickly even with only stock apps installed. I dont know wtf is the problem but im pretty pissed off as i paid 230 euros for it and i dont think i can return it or exchange it for another phone but ill try if theyre nice, i have 1 yr warranty, i hope they can do something. I mean what good is a phone without a proper battery? I dont want to have to worry about battery life all day everyday like im taking care of some infant..
Not to mention the other bugs im experiencing like:
-issues zooming in on photos in the camera app's photo preview button. i try pinching to zoom but it wont. it acts like i want to swipe left or right.. stupid. double-tap also not work.
-proximity sensor during calls is bugged, screen turns on randomly and does random stuff to annoy you, very nice.
-mobile internet (4G) sometimes doesnt work for reasons unknown... what good is a phone without internet? nothing, reading books i guess... not that guy
anyone else have these problems?
should i start installing custom roms see if that will change anything?
im convinced otherwise that my phone has a hardware defect since how is it possible that others with the same phone and build number say its working flawlessly and others like me still have this daunting battery issues? it doesnt make sense..

Try installing custom ROMs like AOSPExtended, plus, install a custom kernel: MetaPheonix.
My battery lasts for 2 days.
The only issue I face is that the display randomly turns on.
4G Mobile data work.
No issues while zooming in.
No battery drain.
AOSPExtended
MetaPheonix
This doesn't really tell anything, but my battery hasn't dropped a percent since 30 minutes ago:
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About the ROM.
Hello there I'm new here.
Begging developer.
Question is there any rom updates released ?

I have similar, or even worse problem. My Xiaomi Mi A1 loses around 30% battery overnight WHEN THE PHONE IS OFF, it can discharge completely while off. When I bought it it was off. I changed the battery, the problem persists. What the hell is this? I have never experienced battery drain in a switched off smartphone.

varben said:
Battery draining is subjective to personal use. I never heard problems like this with battery. You should have a rough app, or more than one, that is affecting the battery. Try finding that/those apps with a battery monitor app.
You'll get more help if you ask in an appropriate thread in the forums rather then creating a new one on this topic. Just a kind suggestion.
Click to expand...
Click to collapse
The problem with his battery drain isn't due to rough apps.
This is a more frequent issue being observed in Mi A1 and most of the times it's due to a wakelock called "700000.ssusb" and no one seems to have a solution as to how to turn it off.
---------- Post added at 04:48 AM ---------- Previous post was at 04:46 AM ----------
For everyone who has posted issues with battery drain, can you install a battery monitoring app - Gsam or Better battery stats and grant it sufficient privilèges? Once you do that, you'll be able to identify what is causing the battery drain, mostly should be a wakelock, if not we'll get to know what it is.

AkCullen said:
The problem with his battery drain isn't due to rough apps.
This is a more frequent issue being observed in Mi A1 and most of the times it's due to a wakelock called "700000.ssusb" and no one seems to have a solution as to how to turn it off.
---------- Post added at 04:48 AM ---------- Previous post was at 04:46 AM ----------
For everyone who has posted issues with battery drain, can you install a battery monitoring app - Gsam or Better battery stats and grant it sufficient privilèges? Once you do that, you'll be able to identify what is causing the battery drain, mostly should be a wakelock, if not we'll get to know what it is.
Click to expand...
Click to collapse
AkCullen, many thanks for your answer. I can't believe I bought such a crap as Xiaomi A1 with battery draining when the phone is off. I spent so much time on trying to do sth about this already that I doubt I'll ever buy any Xiaomi again. Anyway, many thanks for suggestions! I tried to choose "enable more stats" in Gsam (is this what you are suggesting to do, or you are speaking of other permissions?), but I cannot "grant access with root" (unable to get superuser authority= no root?) and alternatively the app asks me to connect to computer and enable some ADB, which leaves me clueless and it way too much for a non-information-scientist as myself.
Is there a manual way to deal with those wakelocks that a non-specialist user can perform, or I must ask for warranty service? I measured discharge rates and in 5 hours, when off, my Mi A1 loses at least 20-25% of battery charge....

goro2018 said:
AkCullen, many thanks for your answer. I can't believe I bought such a crap as Xiaomi A1 with battery draining when the phone is off. I spent so much time on trying to do sth about this already that I doubt I'll ever buy any Xiaomi again. Anyway, many thanks for suggestions! I tried to choose "enable more stats" in Gsam (is this what you are suggesting to do, or you are speaking of other permissions?), but I cannot "grant access with root" (unable to get superuser authority= no root?) and alternatively the app asks me to connect to computer and enable some ADB, which leaves me clueless and it way too much for a non-information-scientist as myself.
Is there a manual way to deal with those wakelocks that a non-specialist user can perform, or I must ask for warranty service? I measured discharge rates and in 5 hours, when off, my Mi A1 loses at least 20-25% of battery charge....
Click to expand...
Click to collapse
Go with the second option. Connecting to a computer and running a command via adb. It's pretty simple, connect your phone to the computer, enable USB debugging in developer options, download adb in your computer (the simpler version which is about 2mb) and run a command that gsam gives you.
And this is only to narrow down the issue, not to fix it.
I've been dealing with this issue for the past couple of months and it's frustrating. The service center can't help me in here because they don't even understand what the issue is.

I've been having the same issues lately. I don't use my phone much during the day, I'd say screen on time totals 30 minutes. Some days when I plug into my charger at 1:00am I'm sitting at 5% remaining, and other days I could have 55% left. I think it all depends on apps being ran, for sure. I think the improvement happens when I reboot the phone before I take it off the charger in the morning. Also, clearing all the recent apps seems to help a little.
But I do think it comes down to Xiaomi to improve the state of their operating system, either through Android or by implementing something themselves. It's really easy to cause a drainage to happen and difficult to stop it without something extreme like a reboot. I've just made it habit in the mornings to reboot the phone and clear recent apps and rarely have an issue.

My A1 Redmi went on to last 4 hours on after upgrading to Oreo. But I returned to the Nougat and the problem persists. Is it a physical fault?
If it is not a hardware problem, does Nougat solve the problem?