Anyone else having this problem? All the sudden Android OS is taking a ton of battery, killed half my battery overnight while the screen was off. Anyone have any of these problems?
Android OS is too general to say what is causing the wakelock. Use an app that can see which process is causing the wakelock directly and you will know what the problem is.
waltthizzney said:
Anyone else having this problem? All the sudden Android OS is taking a ton of battery, killed half my battery overnight while the screen was off. Anyone have any of these problems?
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My android os consumes 70% of my battery. Tried better battery stats, but I don't see any wake locks
Sent from my Nexus 4 using XDA Premium HD app
for what it is worth, it lasts forever in airplane mode...
waltthizzney said:
for what it is worth, it lasts forever in airplane mode...
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Then you definitley have an app or two that is causing it. Try CPU Spy (let's you know if you get deep sleep or not) and see if that helps any. I hate battery drain so best of luck in solving your battery drain issue.
Since I've upgraded to 4.2 roms on all my devices I've noticed this too. Normally, Maps is the culprit causing a "normal" wakelock. Google +, Latitude, Google Now, etc. This is just the way Google operates now & the biggest difference between 4.1 & 4.2. I've taken to disabling Location unless I'm needing GPS service. It checks your location every couple minutes it seems.
I've had a situation you describe a few times caused by media storage. It keeps scanning the SD card. Sometimes a reboot helps but mostly I've just changed roms instead of chasing it. Better Batt Stats should show it somewhere. Keep looking, look in "alarms". Also you might try GSam Battery Monitor. That app has come a long way lately & also helps finding battery sucking sources.
Sent from my Nexus 10 using Tapatalk 2
For me it was Viber. After deleting it I get almost no battery drain over night. Maybe 1% in 8 hours...
So, yesterday I noticed a sudden battery drain on my nexus 4. After checking battery it showed that AndroidOS takes over about 50% of the battery usage. It also showed that time awake was pretty much the same as the amount of time since I unplugged the phone, even though I kept my phone in sleep mode for the most of the day. After some research I downloaded better battery stats and it showed that from the moment I turn the screen off a process called suspend_backoff runs pretty much the entire time. Eventually I got it down to wifi. If I turn off wifi there are no processes running after the screen is turned off (or if there are they are 30 seconds tops), but the moment I turn wifi on suspend_backoff runs pretty much the entire time screen is off. I tried removing all of my apps, as well as doing factory reset but nothing helps. The moment I turn wifi ON this suspend_backoff consumes pretty much all the time during screen off period. Is anyone experiencing anything like this ? I have 4.2.2 on the phone and I havent' seen this extreme drain until just yesterday.
I experience the samething. Android OS would drain as much as the screen time.
I narrowed it down to the suspend_backoff. But the weird thing is that when i'm at home on my home wifi, suspend_backoff doesn't seem to drain anything at all. But when I'm at school, suspend_backoff kicks in.
Anyone help?
hihihoho said:
I experience the samething. Android OS would drain as much as the screen time.
I narrowed it down to the suspend_backoff. But the weird thing is that when i'm at home on my home wifi, suspend_backoff doesn't seem to drain anything at all. But when I'm at school, suspend_backoff kicks in.
Anyone help?
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how did you narrow it down? Im having the same problem!
This is caused by a kernel wakelock. A bad mobile connection make battery drain worse... using WLAN nearly fixes this problem.
Thought this problem has got fixed in 4.2.2, at least battery life got improved and the wakelock reduced.
If it is appearing since yesterday, it is triggered by a app often waking the phone up using mobile data (that's why fixed with WLAN) and prevent the phone from getting into deep sleep as fast as it should.
hope i could help.
I use Greenify to hibernate every single user installed apps, then I release them one by one to see which one cause suspend backoff. But suspend backoff still occurs. So I think it's the kernel itself.
AW: Battery drain on nexus 4 since yesterday
hihihoho said:
I use Greenify to hibernate every single user installed apps, then I release them one by one to see which one cause suspend backoff. But suspend backoff still occurs. So I think it's the kernel itself.
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as i said before, an app needs data, so it starts callung the kernel wakelock... this one causes tje drain, not the app itself
Sent from my Nexus 7 using xda app-developers app
hihihoho said:
I use Greenify to hibernate every single user installed apps, then I release them one by one to see which one cause suspend backoff. But suspend backoff still occurs. So I think it's the kernel itself.
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Yeah, definitely not user apps. I did full reset on the phone to factory settings, no user apps. Even tried disabling Google Play and Google store after the reset. Still the same. The only thing that gets rid of it is disabling WiFi.
hihihoho said:
I experience the samething. Android OS would drain as much as the screen time.
I narrowed it down to the suspend_backoff. But the weird thing is that when i'm at home on my home wifi, suspend_backoff doesn't seem to drain anything at all. But when I'm at school, suspend_backoff kicks in.
Anyone help?
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When did you start noticing this ? Has it been for a while or just recently ? I first noticed it yesterday (had the phone for a bit over a month now, didn't see any issues until just yesterday)
hihihoho said:
I use Greenify to hibernate every single user installed apps, then I release them one by one to see which one cause suspend backoff. But suspend backoff still occurs. So I think it's the kernel itself.
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What is the difference between greenify and limit background apps in developers options?
AW: Battery drain on nexus 4 since yesterday
stop discussing, use search instead... http://forum.xda-developers.com/showthread.php?t=1999368
like i told you 3times now.... it's the wakelock
Sent from my Nexus 7 using xda app-developers app
indoh said:
stop discussing, use search instead... http://forum.xda-developers.com/showthread.php?t=1999368
like i told you 3times now.... it's the wakelock
Sent from my Nexus 7 using xda app-developers app
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Yeah, it's clear that it's the wakelock. What's not clear is why. Also it's not the msm_hsic_host that the forum link you sent refers to. I don't have a problem with msm_hsic, that one barely takes any time during the day (maybe 30 seconds during several hours of standby). The wakelock causing this particular issue is "suspend_backoff" wakelock which supposedly happens when there is a sequence of sleep/wake calls too close together so the system decides to keep it awake. I was unable to find what exactly is causing the issue, even after restoring to the factory settings I kept seeing the same problem.
Anyway, I was able to "resolve" it by installing JuiceGuard app and setting it so it disables wifi when the screen is off. wakelock is gone now and my battery usage is back to normal.
I only get the suspend backoff wake lock when I'm connected to the university Wifi. When I'm at home, everything is fine, no suspend backoff. So my guess is that the Wifi encryption at university is different and causing a succession of close "awake" and cause wake lock.
I did factory reset like 3 times and it still there.
I'll try disable Wifi on Monday and see how it goes.
Same here, when wifi disabled the wakelock doesn't occur.
I have tried almost all of the kernels and non of them seem to help.
hihihoho said:
I only get the suspend backoff wake lock when I'm connected to the university Wifi. When I'm at home, everything is fine, no suspend backoff. So my guess is that the Wifi encryption at university is different and causing a succession of close "awake" and cause wake lock.
I did factory reset like 3 times and it still there.
I'll try disable Wifi on Monday and see how it goes.
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Interesting... Maybe it is encryption. One thing with my Wifi is that it doesn't use password, but MAC list instead. It may indeed be an issue with different wifi encryption types.
OP do you have maps 6.14 on your phone? Mine kept switching on location reporting for a while and it woke my phone 344 times last night. I've been struggling with the same wake lock issues. I'm going to recharge (again) with maps disabled and see if that helps.
Sent from my Nexus 4 using Tapatalk 2
Check your Google account sync settings... In settings
The clowns may have left you a lovely gift there without telling you or asking any kind of permission.
The latest Maps was giving me horrible battery drain, on WiFi. I'd sleep for six hours with a fully charged phone and wake up with 10% left. it even enabled itself when. I disabled it in settings. I converted it to a user app by moving it to /data/app and greenified it. Seemed to have solved all of my issues with the suspend back off wake lock.
Download greenify
Sent from my Nexus 7 using Tapatalk 2
For some weird reason, I was also having serious battery drain suddenly since yesterday.
Turned out it was maps, and disabling Google network locations hugely increased battery life
Sent from my Nexus 4
At first my bluethooth was only using like 3-6% of my battery but now when I saw it takes like almost more than my screen and the thing is I have never turned on or used Bluetooth, how should i fix that I hate getting low battery life
sooo, no one?
Did you find any solution? Are you on KitKat?
That's incorrect reporting in KitKat. You are not actually losing power from this.
Hi all,i have a "problem" with my g2 and how it behaves with wifi on standby
When i leave my phone sleep with wifi off the drain is nothing and the graphic is flat but when i leave it the same with wifi on its like on the second screenshot and thats a problem because(for example)i lock my phone with exactly 60% with wifi on and after some mins i unlock it,use it for a min or almost 2 but not more and it drains the percentage fast to 59% and with that i have less battery time so i want to know if there's any solution to that or is this is normal for a g2?
I have all location off,gps off and i don't use google now.
Thanks.
That's perfectly normal. But if you want to have better control of your wifi I would recommend. This app.
http://forum.xda-developers.com/showthread.php?t=1801284
Sent from my LG-D802 using Tapatalk
Ever since I downloaded the app and paired my phone with my LG G Watch, I went from a full day's use to only 6 hours on my Oppo Find 7a. Its really frustrating. Tried resetting, redownloading and reinstalling to no avail. My phone even heats up now (something it doesn't normally do). I know with bluetooth and constant connection with the watch, battery life will take a hit but never expected it to be this much. Any one else?
**Screenshot of GSAM battery status is attached below
aric913 said:
Ever since I downloaded the app and paired my phone with my LG G Watch, I went from a full day's use to only 6 hours on my Oppo Find 7a. Its really frustrating. Tried resetting, redownloading and reinstalling to no avail. My phone even heats up now (something it doesn't normally do). I know with bluetooth and constant connection with the watch, battery life will take a hit but never expected it to be this much. Any one else?
**Screenshot of GSAM battery status is attached below
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As you said, bluetooth and constant connection would drain the battery life...
DaniCalifornia said:
As you said, bluetooth and constant connection would drain the battery life...
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Not necessarily... I noticed only slight more battery drain running it on my S4
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bluetooth's problem
Oppo Find 7a must be defective, bluetooth takes very little battery life. I am thinking up until you had a bluetooth device you never turned it on, you finally turn it on and find the phone is defective.
My Note 3, I never turn off bluetooth off and I can not notice any battery drain.
Looked at the screen shop Android Wear is in some sort of wake lock.
Mine Android Wear is not even listed see Bluetooth at 3% but no Android wear.
You have some utility that maybe cause issue? I never use a battery conserving app they do not work.
or the device which I do not know may not be using 4.4?