Database Users

[Q] why is my tab 7.7 battery draining ?

Hit everyone
i recently brought new samsung galaxy tab 7.7 from samsung shop
tablet is awesome .loving it
but i am facing problems with battery
if i use the tablet there is very less battery drain
issue-
But
Before bed imagine if its 50 % then in morning its 37 % its normal or what ??
cpuspy says deep sleep is working fine .
whats the issue ?
Modal- GT-P6800
Baseband version - P6800DXLA2
Click to expand...
Click to collapse
any solutions ?
Update =I have attached screenshot of battery status in second page.Sorry,I was unable to post the screenshot here.
Update - i did factory reset . still it didnt help.
should i take to service center .
Thanks

Does the tab feels warm? which is the highest battery usage app?
I used to have a issue whereby the media scanner service gone in an infinite loop scanning for songs in my device..
Have to hardreset to solve it. Normally my overnight drain is 5%, that is with wifi/bluetooth/gps/notification/background sync all on.

My issue was with Exchange. It was draining 30-40% of the battery overnight. After removing my exchange account I lose ~5%

no i am not using wifi all the time .
At night ts on standby wifi off,everything else is off.
even if i put in airplane mode still it drains .
but using the tab ,battery does not drain.
should i go to service center ??

do you have any apps running in the background? do you exit each application you use or just press the 'Home' button?
Sent from my GT-P6800 using XDA

TeeeJaay said:
do you have any apps running in the background? do you exit each application you use or just press the 'Home' button?
Sent from my GT-P6800 using XDA
Click to expand...
Click to collapse
no i dont have any apps running in background .
i always end all running apps before turn my tab off .
cant find the issue.

Mm maybe a screenshot on your battery usage page would shed some light?

eletro said:
Mm maybe a screenshot on your battery usage page would shed some light?
Click to expand...
Click to collapse
will post it soon
any fix ?

Sent from my GT-P6800 using xda premium

Well.. i recommend try hard resetting the device before returning it
When i first got the tab from M1, it ran into battery issues,
but mine is because of media scanner service
And when i connect to android debugger, it shows the media scanner trying to read my music files but failed, it goes in a infinite loop, making the tab heats up
Anyway my problem was solved when i hard reset to factory settings.
Plus i don link any of the samsung apps. (email, or social hubs)

evil_penguin said:
will post it soon
any fix ?
Click to expand...
Click to collapse
Dude, you keep asking for advice without providing any information. These guys are good but not that good

evil_penguin said:
will post it soon
any fix ?
Click to expand...
Click to collapse
Try pulling out your SD card and reset. Run without the SD card for a day to see if it's any better.

eletro said:
Well.. i recommend try hard resetting the device before returning it
When i first got the tab from M1, it ran into battery issues,
but mine is because of media scanner service
And when i connect to android debugger, it shows the media scanner trying to read my music files but failed, it goes in a infinite loop, making the tab heats up
Anyway my problem was solved when i hard reset to factory settings.
Plus i don link any of the samsung apps. (email, or social hubs)
Click to expand...
Click to collapse
OK thanks. Will try it =)
Hope it works =D
I have attached my battery status.

earthman5678 said:
Try pulling out your SD card and reset. Run without the SD card for a day to see if it's any better.
Click to expand...
Click to collapse
Already tried. Will try resetting my tab.
Sent from my GT-P6800 using xda premium

VortX said:
Dude, you keep asking for advice without providing any information. These guys are good but not that good
Click to expand...
Click to collapse
Attached my battery status. See my my comment come =)
Thanks ;-)
Sent from my GT-P6800 using xda premium

your gallery drain alot
did you use it? or maybe a rouge syncing process is running?

eletro said:
your gallery drain alot
did you use it? or maybe a rouge syncing process is running?
Click to expand...
Click to collapse
used it for 5-10 mins only.
anyways i have done factory reset .
i am testing it ,will report about it later.
Thanks

factory reset didnt help at all.i am taking it to service center.
Thanks everyone for help.
Cheers

I always thought 15% drainage overnight is normal when you were not charging it. as there are many bloatware running in the background.
Anyway, you could install and run Taskiller and you can see Galaxy Tab 7.7 has a lot of background services running.
Not all of those services are useful, like SocialHub, and they cannot be uninstalled, but you can still freeze it with Titanium Backup Pro (a paid app, need root). You could consider other options like force uninstall (with root as well), but it is risky and not recommended.
Nevertheless, plugging your tab to charger while sleeping is good idea as it prolongs the battery life. The smaller the depth of discharge, the longer the battery will last. Always avoid full-discharging.

九千. said:
I always thought 15% drainage overnight is normal when you were not charging it. as there are many bloatware running in the background.
Anyway, you could install and run Taskiller and you can see Galaxy Tab 7.7 has a lot of background services running.
Not all of those services are useful, like SocialHub, and they cannot be uninstalled, but you can still freeze it with Titanium Backup Pro (a paid app, need root). You could consider other options like force uninstall (with root as well), but it is risky and not recommended.
Nevertheless, plugging your tab to charger while sleeping is good idea as it prolongs the battery life. The smaller the depth of discharge, the longer the battery will last. Always avoid full-discharging.
Click to expand...
Click to collapse
samsung has put so much bloatware .junk i will say .
i will get my tab today or tomorrow .will see how it goes.
for me , before going 2 bed was 51 % and in morning i came to know it was discharged
touchwiz is too heavy .and plus honeycomb

[solution] fix your battery on wls8

hey,
many of us have faced an issue with the battery after flashing the official JB
well this may not be a sol " cuz i don't know what happend!"
so what i did was
1. flashing LPF 4.0.3 wipe data before flashing , not after.
2. flashing the ls8 and the lpx modem at the same time no data wipe
thats it

I'll try this
Sent from my GT-I9100 using xda app-developers app

From the screenshot I see that you have a big problem with reception signal, which, most likely, causes many wakelocks. Change the modem with one from your country. And whats the solution btw?
Sent from my Nexus 7 using xda premium

I don't get this too. Your screenshot is full of wakelocks, and the only reason your battery isn't empty yet is because your screen wasn't on all the time...
Sent from the Matrix

I found out that the new "google now" ate ALOT of battery in my case.
Try disabling this.

for the screen on! i was oppening the secreen or receiving calls
yesterday i stayed upto 6 hrs after the screen shot was taken, wifi connected and it last till 7%
for my modem, the area where i live having problems with connection, all the modems kh3 and lb7 did the same, at least this modem catched the gps here

eraser0 said:
for the screen on! i was oppening the secreen or receiving calls
yesterday i stayed upto 6 hrs after the screen shot was taken, wifi connected and it last till 7%
for my modem, the area where i live having problems with connection, all the modems kh3 and lb7 did the same, at least this modem catched the gps here
Click to expand...
Click to collapse
Okay, but what's your point by opening this thread..?
Sent from the Matrix

look how much the battery last!!

eraser0 said:
look how much the battery last!!
Click to expand...
Click to collapse
and why did you recharge 75% through the cycle? the main solution has been posted numerous times and it has to do with media scanner running in the background

d1rX said:
and why did you recharge 75% through the cycle? the main solution has been posted numerous times and it has to do with media scanner running in the background
Click to expand...
Click to collapse
well, i roam around here a lot, must've missed this one, any link on that, or any solution?

PlutoDelic said:
well, i roam around here a lot, must've missed this one, any link on that, or any solution?
Click to expand...
Click to collapse
Sure, but first post what apps you're running in background -- maybe it's not media, but something else like Google Now, location service (maps)? How does your phone "sleep"? Does it wake up?
Anyway, media fix that seem to resolve my problems (no more media scanner in task manager)

d1rX said:
and why did you recharge 75% through the cycle? the main solution has been posted numerous times and it has to do with media scanner running in the background
Click to expand...
Click to collapse
no i connected it to the pc for some time
also i didn't disable any service and the battery is lasting for me more than ics

d1rX said:
Sure, but first post what apps you're running in background -- maybe it's not media, but something else like Google Now, location service (maps)? How does your phone "sleep"? Does it wake up?
Anyway, media fix that seem to resolve my problems (no more media scanner in task manager)
Click to expand...
Click to collapse
hmm, im having a hard time understanding whats going on there, but i do switch my cam to sd card as location storage.
regarding your question, i tend to kill tasks always after i finish using my phone, in fact i clear the ram.
this is what im having right now, considering that i slept 8 hours of these 18 there, it's way too much, oh and yeah, i have the extended battery kit (official one), one more reason to moan.

This is the best battery performance I have ever had from my sgs2 (using siyah kernel and the scripts from the neat rom and siyah optimisation thread
Sent from my GT-I9100 using Tapatalk 2

PlutoDelic said:
hmm, im having a hard time understanding whats going on there, but i do switch my cam to sd card as location storage.
regarding your question, i tend to kill tasks always after i finish using my phone, in fact i clear the ram.
this is what im having right now, considering that i slept 8 hours of these 18 there, it's way too much, oh and yeah, i have the extended battery kit (official one), one more reason to moan.
Click to expand...
Click to collapse
Just as a precaution, copy cache folder from SD internal to SD external and delete everything in SD internal DCIM folder. Something else is draining your battery. That 18 hours is too little IMO

d1rX said:
Just as a precaution, copy cache folder from SD internal to SD external and delete everything in SD internal DCIM folder. Something else is draining your battery. That 18 hours is too little IMO
Click to expand...
Click to collapse
/storage/sdcard0/DCIM only contains Photo and Video folders, both empty. im using the stock file manager, i guess what u've asked me for may be hidden. However, there is a "/storage/extSdCard/DCIM/Camera/cache"

It is hidden in mine, but if you see the one on excard than you should see one in internal card. You have to look for wakelocks -- install BetterBatteryStats. I don't know any other method. That app will basically tell you anything.
Give this a read. It will get you started on how to find what's causing the wakes

Battery draining on stock rom.

I bought this phone few days ago and after some using noticed that battery drains really fast with WiFi/Mobile data. I downloaded Greenify and hibernated all apps using network. I turned off Sync, NFC, Energy saving on, screen brightness really low, gps, bluetooth still it drains with 2-4h using WiFi or mobile data(3g).
Can anyone think of something that drains my battery so fast? Thanks for any help!

R0m3t said:
I bought this phone few days ago and after some using noticed that battery drains really fast with WiFi/Mobile data. I downloaded Greenify and hibernated all apps using network. I turned off Sync, NFC, Energy saving on, screen brightness really low, gps, bluetooth still it drains with 2-4h using WiFi or mobile data(3g).
Can anyone think of something that drains my battery so fast? Thanks for any help!
Click to expand...
Click to collapse
Sounds like you either have a process that's preventing your phone from going into deep sleep, or your battery is malfunctioning. Try checking your sleep states with an app like BetterBatteryStats and see if your device goes into sleep mode properly.
P.s. My device lasts ~2 days with medium usage, always connected to the internet with either 3g or WiFi,and I'm not even using Greenify or anything similar, so the battery life is generally pretty decent.

SpaceDye said:
Sounds like you either have a process that's preventing your phone from going into deep sleep, or your battery is malfunctioning. Try checking your sleep states with an app like BetterBatteryStats and see if your device goes into sleep mode properly.
P.s. My device lasts ~2 days with medium usage, always connected to the internet with either 3g or WiFi,and I'm not even using Greenify or anything similar, so the battery life is generally pretty decent.
Click to expand...
Click to collapse
Ehh... thingy "PowerManagerService.WakeLocks" keeps waking the the device up. What now?

R0m3t said:
Ehh... thingy "PowerManagerService.WakeLocks" keeps waking the the device up. What now?
Click to expand...
Click to collapse
Check the partial wakelocks screen. You should be able to locate the app that's causing the problem there. Also, I've read somewhere that cleaning the cache (either through Storage Settings or recovery) helps.

SpaceDye said:
Check the partial wakelocks screen. You should be able to locate the app that's causing the problem there. Also, I've read somewhere that cleaning the cache (either through Storage Settings or recovery) helps.
Click to expand...
Click to collapse
Made a screenshot of partial wakelocks.

R0m3t said:
Made a screenshot of partial wakelocks.
Click to expand...
Click to collapse
Well, it looks like that AudioMix process is causing your problems. I did a google search and found this thread that might help you.
Some have reported that disabling touch and lock screen sounds fixed the issue, while others said that clearing the cache did it for them. I'm afraid you're going to have to experiment

Thanks for the help! I'll try to fix the issue then.

R0m3t said:
Thanks for the help! I'll try to fix the issue then.
Click to expand...
Click to collapse
You're most welcome. Good luck!

SpaceDye said:
You're most welcome. Good luck!
Click to expand...
Click to collapse
It didn't solve it. I'm still having the issue after factory resetting, flashing a new rom, and data resetting. So I noticed that below Audiomix theres written "1013". I googled it, and it should be media according to this thread: http://forum.xda-developers.com/showthread.php?t=442557 . This thing I'm having is such a headache.

R0m3t said:
It didn't solve it. I'm still having the issue after factory resetting, flashing a new rom, and data resetting. So I noticed that below Audiomix theres written "1013". I googled it, and it should be media according to this thread: http://forum.xda-developers.com/showthread.php?t=442557 . This thing I'm having is such a headache.
Click to expand...
Click to collapse
Hmm. That process is obviously tied to something media related, but I can't tell what... A music player perhaps? Do you use any media streaming apps? I'm afraid I'm at my wit's end here... Wish someone else would lend a hand :/

SpaceDye said:
Hmm. That process is obviously tied to something media related, but I can't tell what... A music player perhaps? Do you use any media streaming apps? I'm afraid I'm at my wit's end here... Wish someone else would lend a hand :/
Click to expand...
Click to collapse
I disabled apps like "Adapt Sound" and "SapaMonitor" and AudioMix went down to 1%.(I used media player to try if disabling these apps screws something up). Battery life seems a little bit better but hey, it could be better . Thanks for all the help again! That was really awful... Glad it's over

Happy to help

Terrible battery - no deep sleep

[FIXED]
The problem was related to the motherboard. With the new one everything works properly.
Hi,
I have seen a battery drain for a one week. I can't stand with it. The battery drains very fast - especially at night because I got over 30% battery lose with everything turned off! I tried to wipe cache and factory reset but these ways didn't work. I dunno what's going on but it makes me sick. I think that the phone doesn't go into the deep sleep, because "Android System" takes a first place when it comes to the battery usage. Actually the battery is quite new (97,5% real capacity) so I guess that's a problem with system. I don't want to root my phone because of the knox privileges.
I attached a screenshot which shows a night usage of the battery (when I unplugged - battery percentage was 75%).
Any solutions?
What I tried:
- turn off Wi-Fi scanning
- turn off Bixby
- battery saving mode
- wiping cache
- factory reset (but I've used a backup - if that matters)
Didn't work.. So please, help me

i have exactly same problem for about two weeks. Android system is the first place in battery usage, even before screen, if i dont use phone too much. On samsung community there more people with this problem.
Maybe problem is polish version? Też jestem z polski, jedynie problem mam na modelu z plusem. Jeśli znajdziesz rozwiązanie napisz je proszę (if you find the solution please write it here)

Try not to use a backup, just for a dat or so.

Do you use OPV CSC? Or XEO? Which security patch? My is september. I unfortunately use OPV (Orange) and maybe that's the problem. Can you o provide a link to the Samsung community discussion?
I did a totally clear factory reset yesterday and it still doesn't work. ?
My sot is around 2h...

Same issue with me also.. stand by time is around 8-9 hrs only..
Not sure what happened.. service center ppl asked me to change the battery only..

Turn off GPS and your battery will last forever. On my S8 plus I only turn on GPS when really needed.

I have exactly same problem in s8+. Android system draining my battery for about 2 weeks. SOT in 2-3h.
@vemangor i've got Xeo and problem exist.

agawron91 said:
I have exactly same problem in s8+. Android system draining my battery for about 2 weeks. SOT in 2-3h.
@vemangor i've got Xeo and problem exist.
Click to expand...
Click to collapse
2 weeks? Lol my problem has occured for the same period. I have no Idea what I can do with it. The biggest drain is always when the screen is off and I don't use my device .
Nothing actually works... the worst battery experience I've ever seen

same for 2-3 weeks..
1) display
2) android system
3) android os
4) device standby

vemangor said:
2 weeks? Lol my problem has occured for the same period. I have no Idea what I can do with it. The biggest drain is always when the screen is off and I don't use my device .
Nothing actually works... the worst battery experience I've ever seen
Click to expand...
Click to collapse
Uncheck these 3,on apps ,show system apps

And check Developer options ,keep mobile data to be off

mihayash said:
Uncheck these 3,on apps ,show system apps
Click to expand...
Click to collapse
Thanks for the info, what is the name of the theme you are using?
Thanks

mihayash said:
Uncheck these 3,on apps ,show system apps
Click to expand...
Click to collapse
Any app background freezes or any issues??

all of these i try and still system android eating my battery...

I tried these steps and unfortunately didn't work ?. I see no any errors, freezes etc. Just battery which drains within 2 hours. During the last night my phone turned off because of... 51% battery lose. Everything was disabled. ?

vemangor said:
I tried these steps and unfortunately didn't work . I see no any errors, freezes etc. Just battery which drains within 2 hours. During the last night my phone turned off because of... 51% battery lose. Everything was disabled.
Click to expand...
Click to collapse
Maybe you have apps that run in backround,just try to disable few apps(apps-show system apps- disable allow backround data usage),and disable body sensors from GmsCore from google,you can find it in permissions.
I dont have gmscore and playstore anymore on my S8+,and i have 8 hours SOT,these are the apps that i use right now,i've debloated everything that i dont use and i have Alexisrom 5.6.1

agawron91 said:
all of these i try and still system android eating my battery...
Click to expand...
Click to collapse
You have to disable this too,i have over 8 hours SOT even if i use 10 hours aod

Thanks for your help. Unfortunately - these steps don't work as well... Hate that situation?

vemangor said:
Thanks for your help. Unfortunately - these steps don't work as well... Hate that situation
Click to expand...
Click to collapse
What Rom do you use,Stock ,Custom ? Have you ever tryed AlexisRom ?Have you done factory reset ?

mihayash said:
What Rom do you use,Stock ,Custom ? Have you ever tryed AlexisRom ?Have you done factory reset ?
Click to expand...
Click to collapse
I use the stock rom. I do not wanna to install any custom because of the Samsung Knox. I did factory reset for few times and no one fixed the battery problem.

Battery drain out

Hi guys, it's the second time when my phone drain the battery overnight, it's happened to you? Wich maybe the cause?

Hello,
Same here, it appened 3 times.. I went to sleep with 70% and at wake up no battery.. Today i've not used my phone between 3 hours, it was at 78% i just verify right now if a have notification and i see than the battery is at 48%. It's very strange.. phone is very hot, all apps cleared..

After I have wrote this problem my phone is stuck and I need to restarted,is very hot,cache memory is clean,no apps in background....why? maybe the new miui solve this problem?

I had this problem one time.. It was so hot, black screen, after 5min on "power" button the phone have restarted and stay on the Mi logo during 20minutes.. Can't help you.. I've see than we aren't alone with this problem but don't know how to resolve

cristeasavu said:
After I have wrote this problem my phone is stuck and I need to restarted,is very hot,cache memory is clean,no apps in background....why? maybe the new miui solve this problem?
Click to expand...
Click to collapse
Your phone isn't entering in to deepsleep
I would say it isn't an OS fault, but it is an app that you are installed that is doing it.
I'm positive even that this is the issue.
Now, do you have root to use a Wakelock monitor?

No,I have not Root,I will install and try to figure out the app guilty for this thx ,this answer help us

any news on this? Still have this problem, phone gets hot, processors at max freq until the battery runs out... Only a reboot fix for some hours or days... then it happen again

maxionline said:
any news on this? Still have this problem, phone gets hot, processors at max freq until the battery runs out... Only a reboot fix for some hours or days... then it happen again
Click to expand...
Click to collapse
As i said, it's an App that is taking the deepsleep out.
Try to point it out with an wakelolock monitor app

Pupet_Master said:
As i said, it's an App that is taking the deepsleep out.
Try to point it out with an wakelolock monitor app
Click to expand...
Click to collapse
This is the process that are wakelocking the phone and drains all the batt, check the screenshot.

maxionline said:
This is the process that are wakelocking the phone and drains all the batt, check the screenshot.
Click to expand...
Click to collapse
DRM = Another App is accessing it or Persist Partition is fuzzy.
I think it's another App who access it, usually Video Streaming Apps

Pupet_Master said:
DRM = Another App is accessing it or Persist Partition is fuzzy.
I think it's another App who access it, usually Video Streaming Apps
Click to expand...
Click to collapse
Thanks for the information! The only app that i have is youtube, but i never use it. I debloated the phone thinking it will fix the sudden battery drain. but no. so there is no other streaming app that i know

maxionline said:
Thanks for the information! The only app that i have is youtube, but i never use it. I debloated the phone thinking it will fix the sudden battery drain. but no. so there is no other streaming app that i know
Click to expand...
Click to collapse
Youtube and Google apps are notorious to drain the battery.
Try to uninstall it and see if it fix.

Pupet_Master said:
Youtube and Google apps are notorious to drain the battery.
Try to uninstall it and see if it fix.
Click to expand...
Click to collapse
Uninstalled by adb windows tool. testing if the issue persist. I will return here to report the result. Thanks!

Found that browser (just kiwi deskrop shortcut) version of the app is both faster, less drainy and does not show you that many ads also can flip to desktop mode to access creator studio functions

Pupet_Master said:
DRM = Another App is accessing it or Persist Partition is fuzzy.
I think it's another App who access it, usually Video Streaming Apps
Click to expand...
Click to collapse
Hey Puppet_Master since i uninstalled youtube app i do not experienced anymore sudden battery drain, you was right that youtube was triggering the DRM services. Thanks you very much for your help. You saved me!!!!

maxionline said:
Hey Puppet_Master since i uninstalled youtube app i do not experienced anymore sudden battery drain, you was right that youtube was triggering the DRM services. Thanks you very much for your help. You saved me!!!!
Click to expand...
Click to collapse

Pupet_Master said:
Click to expand...
Click to collapse
Sadly it happened again yesterday, was 10:30am, touched the phone for taht reason, check the temperature... and was warm, unlock, and the two big cores was stuck at 2208mhz again... battery at 30%, was at 65% two hours before. Again the android.hardware.drm...
I dont have any video player installed, nothing new installed. I hope that android 10 fix this issue, but i doubt..

maxionline said:
Sadly it happened again yesterday, was 10:30am, touched the phone for taht reason, check the temperature... and was warm, unlock, and the two big cores was stuck at 2208mhz again... battery at 30%, was at 65% two hours before. Again the android.hardware.drm...
I dont have any video player installed, nothing new installed. I hope that android 10 fix this issue, but i doubt..
Click to expand...
Click to collapse
I guess playstore os Chrome is doing it.
DRM isn't something from Android but an app that access it
Do you watch google play videos?

Perhaps you can try to set back the theme to the original theme. I have done mine and the draining stopped. If I use any custom theme, suddenly the phone will get hot and then drain battery like hell.
I've reverted to original theme and so far there's no issue apart from sometimes the phone suddenly hang and have to do a reboot.

Pupet_Master said:
I guess playstore os Chrome is doing it.
DRM isn't something from Android but an app that access it
Do you watch google play videos?
Click to expand...
Click to collapse
Never use google playa vídeos, well, i dont even play videos in the phone
---------- Post added at 02:02 PM ---------- Previous post was at 02:01 PM ----------
lavenderyew said:
Perhaps you can try to set back the theme to the original theme. I have done mine and the draining stopped. If I use any custom theme, suddenly the phone will get hot and then drain battery like hell.
I've reverted to original theme and so far there's no issue apart from sometimes the phone suddenly hang and have to do a reboot.
Click to expand...
Click to collapse
I have the original theme, never changed it