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Suddenly getting crazy battery drain

Anyone else get stupid fast drain while its sleeping? I have wifi sleep policy set to turn off wifi when screen is off, and using the task manager nothing looks to be running that i havent launched myself. But usually i'd have the battery last DAYS and DAYS if i wasn't using it that much, but the last few charge cycles it's been nearly dead at the end of the day. Is there an app I can get to monitor stuff while its sleeping to see if something is keeping it from deep sleep? I can't remember what i've installed recently that could keep it in wake-lock or whatever. Thanks guys.

There's a build in feature in the settings menu to tell you what uses battery

Check that the wifi is actually sleeping when the screen is off. Tap the power button to wake up the tablet then look at the notification bar in the right hand corner to see if the wifi is turning on and connecting. If its not doing that then I dont think the wifi is disconnecting and turning off when the screen is turned off.

For battery issues, two "must have" tools are "better battery stats" and "cpu spy"

gary's right. download better battery stats here:
https://market.android.com/details?id=com.asksven.betterbatterystats
and since the developer of that app loves XDA, there's a free version for us!
OP: http://forum.xda-developers.com/showthread.php?t=1179809
DL: http://forum.xda-developers.com/attachment.php?attachmentid=833619&d=1325149176
Look into the partial wakelock and find the cuplrit!

Battery Drain
Try loading the free util Auto Airplane Mode which has helped fix the SOD issue and the related battery drain during the SOD.

Sorry to push the old post up again.
Recently im suffering from the weird battery drain, i didnt play/use my phone much on sunday , the idle battery drain is huge. like 8 hrs from 100%-40%.
I've installed both betterbatterystats and cpu spy already.
From battstats , it shows that kworker/0:1-3 and kworker/u:12-13 etc using up most of the batt , secondly is the doubletwist music player.
From cpu spy, most of the time is with 200mhz even i didnt use the phone at all, rarely goes to deep sleep mode.
for the process kworker it didnt show whats the process/app is about , anyone else know wt to do now ?

Same problem here :-(
Fully loaded at 7 o'clock and now I'm 34% - this really sucks!

faygo6464 said:
Sorry to push the old post up again.
Recently im suffering from the weird battery drain, i didnt play/use my phone much on sunday , the idle battery drain is huge. like 8 hrs from 100%-40%.
I've installed both betterbatterystats and cpu spy already.
From battstats , it shows that kworker/0:1-3 and kworker/u:12-13 etc using up most of the batt , secondly is the doubletwist music player.
From cpu spy, most of the time is with 200mhz even i didnt use the phone at all, rarely goes to deep sleep mode.
for the process kworker it didnt show whats the process/app is about , anyone else know wt to do now ?
Click to expand...
Click to collapse
All you can do is to check the apps you recently installed or updated. They might lock you from sleep. No easy way to control this

For me it was the "samsung-keyboard" - I froze it and now everything seems normal.

[Q] Battery Drain - 98% Wifi

The last few days my TF101 keeps draining over night, when I look at my battery stats it says 98% is Wifi. I'm not sure what is happening, should I think it is the Dock battery drain problem, or do you think I have a bad app that is keeping wifi going ? If so, how can I find it? I am on a custom rom Revolution 2.3.0 and was wondering if I may be better off trying to go back to the stock WW rom but with root? in preparation for ICS?
Also could this be sleep problem maybe?
Thanks all

Try auto airplane mode. Worked for me.

That is mostly a bad app. Try to get a task manager software to see what's on and kill it. It is most certainly a programe that connects to the Internet most of the time like torrent based software that is always uploading...

I had this problem once or twice when flashing new ROMs.
Just try to reflash the ROM of your choice and wipe cache also.
Let me know if this helped!

What apps are you running?

Check your apps. To test this, just before you put the TF to sleep. go into wifi settings and set wifi to go off when screen does. put it to sleep. I found this works, but something is resetting wifi off to never once you wake it up. Permissions on most apps are way more than needed.

Just noticed it is set up in device settings to never disconnect from wifi. What should the default setting be for the device? I have set back to disconnect on screen going off. What do you guys have set for yours?

I have a B50 dock and a B60 Transformer. My Transformer began draining no matter which options I set with wifi and screen etc., previously I had a very low battery drain. I started looking around and discovered some apps that I had installed had automatically initiated auto synch settings. I disabled all auto Synch options and now it is going into deep sleep and battery drain has stopped.

asus transformer 101g - all widgets and programm show me 8-9-7 Mv and do not show normal voltage ? WTF ?

wilx said:
Just noticed it is set up in device settings to never disconnect from wifi. What should the default setting be for the device? I have set back to disconnect on screen going off. What do you guys have set for yours?
Click to expand...
Click to collapse
You need to check that setting each time before you put TF to sleep as some apps will change it on you. Apps seem to demand way mote permissions than they need to do their job

change the wifi settings "disconnect policy" to " never when plugged in". I did that running prime 211 and it saved tons of battery. Its more absolute control. I check my tf all the time so i dont miss any updates n stuff. I have my phone too.

Matterhorn said:
I have a B50 dock and a B60 Transformer. My Transformer began draining no matter which options I set with wifi and screen etc., previously I had a very low battery drain. I started looking around and discovered some apps that I had installed had automatically initiated auto synch settings. I disabled all auto Synch options and now it is going into deep sleep and battery drain has stopped.
Click to expand...
Click to collapse
Thanks, are all these autosync settings in one place or in the individual apps

wilx said:
The last few days my TF101 keeps draining over night, when I look at my battery stats it says 98% is Wifi. I'm not sure what is happening, should I think it is the Dock battery drain problem, or do you think I have a bad app that is keeping wifi going ? If so, how can I find it? I am on a custom rom Revolution 2.3.0 and was wondering if I may be better off trying to go back to the stock WW rom but with root? in preparation for ICS?
Also could this be sleep problem maybe?
Thanks all
Click to expand...
Click to collapse
I chased this up recently in http://forum.xda-developers.com/showthread.php?t=1276670
I've found the same issue, something is resetting my wifi policy - probably some app or service I've downloaded.
I'm running Revolver 3.11.1 with default rom and even after flashing and trying the old dock firmwire I'm not having any luck. I've been investigating writing a service to identify and log changes so I can track the culprit, in the meantime I'm using auto airplane off as someone else suggested, its a perfectly working alternative but I'd rather minimise the bits and pieces trying to regulate what should be normal system controls...(given thats likely what got us here in the first place )

ICS Wifi stays on while on sleep

Hi guy, my wifi won't turn off when my Xoom is on sleep. I have set the settings of 'keep wifi on during sleep' both to 'NEVER' and 'ONLY WHEN PLUGGED' but nothing happens. Wifi stays on and keeps draining my battery life. I am running rooted with the latest version of nightly 62 and I've been having this issue since 55. I have reinstalled, flashed, factory reset, wiped my Xoom.
Is anyone else having this issue? What should I do?

From my experience, wifi stays on for a little while longer after device sleeps. However, some apps in background may trigger wifi back on again. So I turn off wifi when i go to bed. Actually i notice wifi itself will not drain much battery, 1-2% for 10hr. It's the host apps sucking the juice.
I am not an expert though.

OK i've also checked it out and as you said wifi turns off after some time. My main problem now is that my battery life won't last more than 3-4 hours on wifi.
I have posted my battery stats with use of web browsing and watching pictures on gallery...

jimgeroul said:
My main problem now is that my battery life won't last more than 3-4 hours on wifi.
Click to expand...
Click to collapse
What do you mean "no more than 3-4 hours"? In your battery chart, you can get more than that even starting from 75% battery.

What I wanted to say is that I think my battery won't last more than 4 hours with wifi on and some serious usage.. from my stats as I can see I've been using it 5 hours but I only had screen on and browsing the web. I think there will be a huge difference if I am watching a movie or playing a game.. I don't have the time to check it now but I will post my results in some days..
According to my previous battery graph do you see any problem or something less from what your Xoom battery holds? Does this battery drain seems normal to you?

jimgeroul said:
Hi guy, my wifi won't turn off when my Xoom is on sleep. I have set the settings of 'keep wifi on during sleep' both to 'NEVER' and 'ONLY WHEN PLUGGED' but nothing happens. Wifi stays on and keeps draining my battery life. I am running rooted with the latest version of nightly 62 and I've been having this issue since 55. I have reinstalled, flashed, factory reset, wiped my Xoom.
Is anyone else having this issue? What should I do?
Click to expand...
Click to collapse
I think you'll find it will stay on for about 15 minutes. There is some setting in a system database (using a sqlite editor) that can be changed to bring this down. I doubt Wifi is what's draining your battery. Are you synching email via activesync or running other stuff in the background?

I am only using my yahoo mail from the EMail app. I don't know if it uses activesync. I have set it to check emails every 30minutes.

wifi not turning off
Edit: I found the wifi sleep option in ICS. Google sure did a great job of hiding it. See attached picture for anyone else having wifi staying on during sleep issues.

So there are three options
Keep WiFi on during sleep
1) Always
2) Only when plugged in
3) Never
What option to set if i want Wifi to turn of after some time of when phone sleeps. Previously i had set the option to 15 minutes but that option is not available in ICS and i m having a hard time understanding how these options work on my sensation.
Can anyone explain what each of these options do ?

lazers378 said:
So there are three options
Keep WiFi on during sleep
1) Always
2) Only when plugged in
3) Never
What option to set if i want Wifi to turn of after some time of when phone sleeps. Previously i had set the option to 15 minutes but that option is not available in ICS and i m having a hard time understanding how these options work on my sensation.
Can anyone explain what each of these options do ?
Click to expand...
Click to collapse
My guess:
1) Always: WIFI always on no matter awake or asleep
2) Only when plugged in: WIFI always on only when plugged to power
3) Never: WIFI will be off if asleep (my current setting)

That was it
invidious07 said:
Edit: I found the wifi sleep option in ICS. Google sure did a great job of hiding it. See attached picture for anyone else having wifi staying on during sleep issues.
Click to expand...
Click to collapse
Thanks, I had not seen the option to turn wifi off during sleep.
--Doug

Bear in mind that (irritatingly) applications can seemingly change this setting.

cspiby said:
Bear in mind that (irritatingly) applications can seemingly change this setting.
Click to expand...
Click to collapse
For an app to change wifi sleep policy, it needs the WRITE_SETTINGS permission.

[Q] WiFi not turning off automatically in deep sleep

Hello!
I finally received my OnePlus One and after setting it up I noticed that the phone will not turn off WiFi in sleep mode even though it's set to Never keep on WiFi during sleep. I suspect a wifi lock of some sort and I'm also noticing that after a period of time in sleep mode, wifi will periodically turn on and off for short duration.
I installed BetterBatteryStats, Wakelock detector and GSAM Battery Monitor but I can't find a clue as to what's keeping the WiFi on, or why.
Another thing I just noticed is that when charging now for the second time, the notification LEDs are not turning on while charging or when it's fully charged. It worked for the first time when I was charging it yesterday.
I am running all incremental upgrades (2 were installed when received yesterday), the device is rooted.
Could you help me find the app or setting that is keeping WiFi enabled and sometimes prevents the phone from entering deep sleep?
Thank you.

shiinkotheone said:
Hello!
I finally received my OnePlus One and after setting it up I noticed that the phone will not turn off WiFi in sleep mode even though it's set to Never keep on WiFi during sleep. I suspect a wifi lock of some sort and I'm also noticing that after a period of time in sleep mode, wifi will periodically turn on and off for short duration.
I installed BetterBatteryStats, Wakelock detector and GSAM Battery Monitor but I can't find a clue as to what's keeping the WiFi on, or why.
Another thing I just noticed is that when charging now for the second time, the notification LEDs are not turning on while charging or when it's fully charged. It worked for the first time when I was charging it yesterday.
I am running all incremental upgrades (2 were installed when received yesterday), the device is rooted.
Could you help me find the app or setting that is keeping WiFi enabled and sometimes prevents the phone from entering deep sleep?
Thank you.
Click to expand...
Click to collapse
Go into Settings>Wifi>Advanced and uncheck the "scanning always available" option.

timmaaa said:
Go into Settings>Wifi>Advanced and uncheck the "scanning always available" option.
Click to expand...
Click to collapse
Already done when I first got it. But thanks.

Does anyone have any idea on the charging light though as well ? It's enabled in the settings, everything is set up as it should be, indicator is working for other notifications but it's NOT turning on when charging or when fully charged.
EDIT: Figured that LED part out: turns out I accidentally disabled it during the quiet hours. :silly: But I still have the peristent WiFi on problem :/

So you're not getting any wakelocks show up when investigating via any of the apps you mentioned in the OP?
Transmitted via Bacon

timmaaa said:
So you're not getting any wakelocks show up when investigating via any of the apps you mentioned in the OP?
Transmitted via Bacon
Click to expand...
Click to collapse
No, nothing significant. And most of the time phone is not awake but wifi still stays on.

Are you actually experiencing bad battery life?
Transmitted via Bacon

I'm not experiencing a bad battery life, no. But I'm still interested in what's keeping the WiFi on when I explicitly set it to turn off when screen is off/phone is not awake. "Never settle", I guess.

Bump - so, is there a way to detect "wifi locks" and apps that turn it back on periodically while sleeping?

[Fixed] Standby battery drain

Hello everyone!
So this thread is for those guys that are still having the standby drain even after trying everything and got no help.
My Device Is not Rooted​Since last 2 weeks my device was having super standby drain and I couldn't help that.
First I thought that it was due to the battery wearing out. But I had this phone(exynos version) for around eight months and that is not enough time for the battery to drain out fast. So I started looking for the fixes in the xda threads but none of them had a mass effect on what i was suffering from.
Then I read about that app named the "Better Battery Stats".
https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats&hl=en
I used this app to monitor the usage that was being done by different apps.
Most of the battery i.e 61% was being consumed by the apps that were running in the background. And the second big consumer was the android system. So as was mentioned in most of the posts what I tried.
1) Settings> Display> Resolution> Fhd to hd
2)Settings> Device Maintenance> Battery> Save Power and All apps put into always sleeping apps.
3)Setting> Connections> Location> Google Locaation History and disabled it.
4)AOD Disabled.
5)Sync Disabled.
6)Wifi> Advenced> Keep wifi turned on while sleep and set it to never.
7) Reset> Reset network settings
8) Boot into recovery and wipe cache patition
9) Reset factory data(Wipe everything).
And after doing all these steps nothing much changed my battery life since when i after resetting my phone again updated all apps from play store and resetting battery got an SOT of around 3 hours.
Then I again started searching for the problem.
I installed the accuBattery app from play store.
https://play.google.com/store/apps/details?id=com.digibites.accubattery&hl=en
And saw that phone was not entering deep sleep for hours that was causing the standby drain!
The major reasons for the drain were.
1) TOUCHWIZ HOME!
2) Google Chrome.
3) Facebook app.
To fix that I applied Lawnchair as my default launcher.
set the theme to dark. Disabled the location permission in the facebook app. And disabled google chrome.
Other settings that also helped were
Change the resolution to hd. Disable google location history.
And boom.... It worked Like a Charm....
Now to add an extra something to the battery life i switch to MID Power Saving mode. That Also helps alot when phone is not being used as it stops background data usage by apps.
Now the average sot that i get from my phone is around 6 to 7 hours.
And the phone sleeps like a baby. 5% Drain in 10h and wifi was on for the whole night. Deep sleep for 9h 41m.
PS: I use most of the time my phone for gaming and heavy usage.
Hope this will work for you guys too.
Screenshots Are attached for the proof!!

Thanks for this man

How are your notifications? I'm having a lot of trouble with delayed notifications, emails/messenger/etc just wake up when I take the phone and I don't even have to wait more than 5-10mins for what seems to be doze to kill everything.
I get whatsapp calls that I miss because the phone never receives it.
And STILL my battery life is far from great.. borderline bad I'd say. So sad

In settings go to device maintenance and hit battery you'll see an option for "always sleeping apps" enter any apps you don't want to run in the bsckground, which will probably be most of them. Saves a lot of data and a lot of battery.