Database Develop

Android os eating 80pc battery after KL7 update

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I feel my battery life has come dowb after kl7 update..check scrrenshot
Sent from my GT-N7000 using XDA App

I am not seeing exact issue how much android OS usng,
looking to your screenshot, display is just 6%, means hardly you have utilised your device. it was mostly in screenoff state. Ok when you dont use your device, but OS is running in background so just OS but nothing else have drain it.
Now another thing looking to image i can say in 9hr your battery dropped 50%
it means > 5% / hr, that actually i count the measure.
In idle state it shud be 2-3 % with 3G n Data sync On. So here it is more.
anyway once let it drain completely then recharge it fully n count drain %/hr.
I am using few stuff, e.g
Autostart - just kill the app you dont using
Phoneweaver - It autometically controls my data connection e.g. just after 15min to my sleeping time, it gets turnoff my data, n swithon b4 few min i wakeup.
SetCPU - I set profile to use CPU <500 in screenoff state.

My batt seems to last longer on kl7.

Your is idle. it seem 3%/hr even using screen quite good time.

My sisters Note had same crazy issue with Android OS eating battery. Tried many things to find the culprit but only thing that fixed it was full wipe and reinstall ROM. No issues now.
Sent from my GT-N7000

il calibrate battery and see hwz it working

I have a very long time use with this firmware and very happy with the update.
I just disabled all automatic synch and the samsung apps notification and things like this.
3g is always enabled and some hours a day wifi is also enabled

Don't know if it will work for you but I had the same problem. Believe it or not a simple hard reboot, solved the issue. Was identical to mine using Android OS over 70% while screen was at 15%. Programs added and deleted were still running around in the OS until that reboot(I'm guessing). Let me know if that works.

seems better. i did a complete battery drain and recharged from 0 battery. now after 5 hours after complete recharge, im at 84%. 2 push emails..full time wifi connectivity, facebook/twitter/socialhub sync always on. 5 min phone call. and thats it.i think its better.

For those who do not realize it yet, having Facebook, Twitter, Gmail, etc syncing every minute takes a lot of power. You cannot expect the phone to be doing this for 12 hours straight.
If you have a lot of battery ussage with screen off, try to disable account synchronization and see what happens then.
You need to evaluate if you need to see every social network update on the instant, or you carry extra batteries with you, or you are able to find a place to charge every few hours.
What you cannot expect are miracles.

vcespon said:
For those who do not realize it yet, having Facebook, Twitter, Gmail, etc syncing every minute takes a lot of power. You cannot expect the phone to be doing this for 12 hours straight.
If you have a lot of battery ussage with screen off, try to disable account synchronization and see what happens then.
You need to evaluate if you need to see every social network update on the instant, or you carry extra batteries with you, or you are able to find a place to charge every few hours.
What you cannot expect are miracles.
Click to expand...
Click to collapse
Will disable sync on background make apps like whatsapp make you miss receiving a message?

Anonymous Vagrant said:
Will disable sync on background make apps like whatsapp make you miss receiving a message?
Click to expand...
Click to collapse
no, you will still receive messages and everything is working fine

Hang on.i have all sync enabled...wifi always on .stil look at my battery life..its decent
Sent from my GT-N7000 using XDA App

Hmm, something has definitely changed for me.
Up until recently I was getting two days use out of a charge with wifi, gps & 3g enabled syncing 2 gmail, 1 yahoo account plus twitter and google reader stuff. Last couple of days Android OS has gone nuts and I'm getting similar readings in terms of usage to those quoted in this thread. This morning I've drained 20% in an hour with a bit of internet use.
Only thing I have changed is updating a few apps and I've put the thing in one of those silicon protection cases but that can't be the reason(can it??!!).

khan.dharvesh said:
Hang on.i have all sync enabled...wifi always on .stil look at my battery life..its decent
Sent from my GT-N7000 using XDA App
Click to expand...
Click to collapse
Cos you are using wifi all the way,
3G will eat up more battery

[Q] Battery Analysis

Hello, can someone give me a hand with the analysis of my battery consumption?
I used to get 3-4-5 hours of Sceen On time. Now I can barely get 2 hours!
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With this last image I have no idea why it shows this. I've never been without internet, and I always have 3G coverage except in a few instances when I'm on the train going through a small tunnel or something (it drops to GPRS for about 30 or 40 seconds).
Thanks guys... I'm so confused...

cool picks, got cpuspy pics of same timeframe?
I like to cross reference and check if numbers add up.
Did you switch roms/ kernel lately, or update?
Battery getting full charge? mv?
Now the partial wakelocks are interesting. Try switching off fast dormancy by dialling *#9900# and selecting option that should/could take care of svnet.
Audioout probably by turning off options in settings then sound then all bottom choices.
the rest I am not sure, google partial wakelock and the service name.
Other then that, if nothing has changed except battery lifetime. Try safe kernel, then completely go to zero situation where you were getting the better battery life, then eliminate other apps perhaps.
Sent from my GT-N7000 using Tapatalk 2

Sorry I should have mentioned that I'm on full stock 2.3.6. I don't really like the ics builds. No other apps to measure.
The kernel is always the highest usage on my phone. What can cause that?
I'll still CPU spy and run it tomorrow and republish here. Thanks for your reply.
Sent from my GT-N7000 using Tapatalk 2

Hello zkyevolved, which version of BetterBatteryStats are you using?
I ask this because on my device, under Other and Since unplugged options, there is no Deep Sleep entry directly below Wifi Running. The entry shown directly below Wifi Running is Awake.

YLNdroid said:
Hello zkyevolved, which version of BetterBatteryStats are you using?
I ask this because on my device, under Other and Since unplugged options, there is no Deep Sleep entry directly below Wifi Running. The entry shown directly below Wifi Running is Awake.
Click to expand...
Click to collapse
Hello! Thanks for the reply. I checked my version and it's 1.9.0.0. It was just updated the other day if I recall correctly.
I will update again today after a full days use in the battery. I'll post again with screenshots from both applications.
For the moment I've only disabled fast dormancy.
Sent from my GT-N7000 using Tapatalk 2

awesome. You know analyzing is pretty difficult on android lol. sometimes I get frustrated and just reset to starting conditions and reinstall everything. Which is safe on gb, not ics due to superbrickbug triggers in ICS kernel.
Analyze first though Am interested in results.
If battery life is important and you dont mind warrantee, I can recommend the k2-11 or k2-12 speedmod kernel on gb roms. It was best batterylife for me 4-5 hours full screen on time.
Sent from my GT-N7000 using Tapatalk 2

a quick recheck, in current pictures you have 11 hours of measurement time with only 5 in deep sleep and 2 hours onscreen time?
That means 3 hours phone is awake. So it does seem classic deepsleep issue. I am no pro btw, but thats what I suggest monitoring for now.
When phone doesnt deepsleep cpu cycless on 200mhz doing nothing, that consumes energy, we are looking to minimize that.
Some of the stuff I mentioned earlier, partial wakelocks is whats actually keeping phone awake. I hope the fast dormancy off takes care of some keep awake time.
Now when measuring dont check phone every five, ten, twenty minutes, sometimes it takes about 15 min to go to deepsleep, thusvyour manually keeping it awake. Been there done that.
Sent from my GT-N7000 using Tapatalk 2

Hey everyone! Here are some updated screen shots:
This was my activity today: I did listen to some music, I mostly answered messages. Browsed very little. I skyped over HSPA for about 5 minutes. I went for a quick jog with endomondo using the GPS and music in the background via bluetooth for a total of 30 minutes. I used wifi for most of the day. As you can see, for a 2/3 of the day it was in deep sleep, while the rest was a mix of other speeds. I imagine 200-500 was the light usage (endomondo with screen off, bluetooth headphones, skyping OTA, etc.) and when the screen was mostly on and browsing, taking screen shots (I took a lot today, to annotate the screens I was looking at), etc.
Thanks everyone for your continued help.
Ohh, and the SVNET service is still there, I turned it off yesterday, and then today at around 5 o'clock I saw that I had about the same battery left as other days, so I turned it back on again.

ok then its something else keeping svnet up. Dunno about that.
For the rest its best for comparison of stats to measure same timespan, so reset stats when you unplug phone.
Anyway it is deepsleep issue, your phone is not appearing to go to deepsleep ideally.
Cause I cant make out the numbers from what I see, and what it is keeping awake, I recommend starting new. So save messages with an app from play, apps with titanium backup, and efs folder if you never saved, check my thread on that. Contacts and calander in gmail. Photos manually Backup on external sd card and remove after.
On GB do a factory reset with code in dialer ending in 3855, that completely resets device. That should do the trick. I think from settings storage format sd card, not sure if factory reset does that.
If you dont care for warrantee then perhaps speedmod k2-12 kernel is a good alternative to stock gb kernel in terms of battery life
That should fix it. Just dont restore apps with data, let it repopulate itself, that way if something is messed up there you can catch it.
If I am missing something, and anyone reads this, I am keen to learn
Sent from my GT-N7000 using Tapatalk 2

Stamina mode not switching off wifi

Probably a stupid question but do I have to change the wifi sleep policy for Stamina mode to work?
I have s stock ROM and Stamina doesn't seem to turn off wifi. Battery stats show that wifi is still the major consumer of the precious mAh.

podge3 said:
Probably a stupid question but do I have to change the wifi sleep policy for Stamina mode to work?
I have s stock ROM and Stamina doesn't seem to turn off wifi. Battery stats show that wifi is still the major consumer of the precious mAh.
Click to expand...
Click to collapse
Do you have exceptions for Stamina?
If yes, all data will remain on.
Otherwise, stamina should turn wifi off.

You know... Ive noticed the same few days ago. Wifi stays on even after few houres, I have no exception set for wifi on stamina mode. Im on. 244
Sent from my C6603 using xda app-developers app

Kondzioz said:
You know... Ive noticed the same few days ago. Wifi stays on even after few houres, I have no exception set for wifi on stamina mode. Im on. 244
Click to expand...
Click to collapse
I've no exceptions and also on .244.

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you need to either add "Active Apps" to the list to stay alive during stamina mode or remove some from list. Another thing is Location Based WiFi; with this if you're in ANY area you have a saved wifi access point, the phone will turn wifi on and connect to it.
wifi drains less battery than your standard mobil signal sooo kind of a dumb complaint bro
I'm constantly on wifi and use my wifi calling + plenty of phone usages. 4++hrs of screen time and getting 22-30 hours per battery charge
Even with WiFi basically that whole charge.it only used 6%...

troyism said:
wifi drains less battery than your standard mobil signal sooo kind of a dumb complaint bro
Click to expand...
Click to collapse
I don't know why its "dumb" to ask why a feature on the phone doesn't work correctly??
Anyhoo, back to the problem. As can be seen from the screenshot, wifi used 22% of the battery.
More importantly, it can be see here that wifi doesn't seem to switch off:
[/URL]
In the first half of the graph, the times that it was off was when I manually turned it off or changed the sleep policy.
Just to clarify, I don't need to change the sleep policy from "always"?

Yeah it seems this was added with 244 and not many people saw it before or simply don't have the problem but some people have...
Already being reported here on the 244 thead:
http://forum.xda-developers.com/showthread.php?t=2386276&page=39
:crying:

troyism said:
wifi drains less battery than your standard mobil signal sooo kind of a dumb complaint bro
Click to expand...
Click to collapse
Hmmm...now THAT assumption is kinda dumb.
Research first mate...then you will see that WiFi eats more juice than mobile signal.
Anyway, this bug is apparent on .244 update. Wait till Sony fixes it.
Sent from my C6603 using xda app-developers app

Thanks for the input, guys.
I didn't realise that it was just on .244. I only got my XZ last week and it always ran on .244 so I thought I was doing something wrong. Will wait for a Sony fix.

Do your research bro. Mobil signal saps more juice depending on strength of signal while Wi-Fi uses same amount of juice unless doing mass downloads. Why do you think T-Mobile devices get better battery life when strictly using WiFi with WiFi calling? Take it from a cs major bro. WiFi drains battery slower than a strained Mobil signal. As for your 22% of WiFi on that first image. Probably had a lot if data. Honestly though you should probably reflash
Sent from my C6606 using Tapatalk 2

troyism said:
Do your research bro. Mobil signal saps more juice depending on strength of signal while Wi-Fi uses same amount of juice unless doing mass downloads. Why do you think T-Mobile devices get better battery life when strictly using WiFi with WiFi calling? Take it from a cs major bro. WiFi drains battery slower than a strained Mobil signal. As for your 22% of WiFi on that first image. Probably had a lot if data. Honestly though you should probably reflash
Sent from my C6606 using Tapatalk 2
Click to expand...
Click to collapse
So basically, what you're saying is that WiFi eats less juice than mobile data PROVIDED:
1. Mobile signal is strained depending on signal strength.
2. WiFi is used normally with no heavy downloads.
Now this, I wouldnt argue with.
With your previous vague statement however, I would contest.
Sent from my C6603 using xda app-developers app

Battery drain on school WiFi

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Battery consumption on school WiFi is unusually high. You'll notice the much steeper curve than when at home earlier in the day (school starts at 8). You can find attached GSam Screenshot, my app drawer and battery stats. Any ideas on how to reduce the consumption?
Sent from my SM-N920I using Tapatalk

School WiFi Difference
A few things could be happening here;
1. When you take your phone off charge, usage below around 96% is a steeper curve for Li-Po and Li-Ion batteries, especially in smartphones, so this could be an unusual drain on your battery.
2. When connected to your home WiFi Router, the smartphone has a stable connection to one source. When connected to commercial WiFi, you'll find the device can be connecting to multiple routers as you move around so the phone is constantly renewing the WiFi lease, this will force the CPU to wakelock also which will cause a higher battery usage.
I'd suggest looking around for apps which give you more detailed battery stats, make sure you're charging the device with an approved Samsung product etc. It could even be that WiFi isn't even the issue here so it's worth looking around for apps which give better stats on usage.
Sent from my rooted G928F (Samsung Galaxy S6 Edge Plus)

sammylegend2015 said:
A few things could be happening here;
1. When you take your phone off charge, usage below around 96% is a steeper curve for Li-Po and Li-Ion batteries, especially in smartphones, so this could be an unusual drain on your battery.
2. When connected to your home WiFi Router, the smartphone has a stable connection to one source. When connected to commercial WiFi, you'll find the device can be connecting to multiple routers as you move around so the phone is constantly renewing the WiFi lease, this will force the CPU to wakelock also which will cause a higher battery usage.
I'd suggest looking around for apps which give you more detailed battery stats, make sure you're charging the device with an approved Samsung product etc. It could even be that WiFi isn't even the issue here so it's worth looking around for apps which give better stats on usage.
Sent from my rooted G928F (Samsung Galaxy S6 Edge Plus)
Click to expand...
Click to collapse
It's not a commercial wifi, as far as I know, there's a single AP, as it's not a terribly big facility
Sent from my SM-N920I using Tapatalk

The router could have an agressive beacon rate...which just constantly probing your phone for connectivity. nothing you can do.

My fiance and I had similar battery drain issues whenever we connected to 5G routers. The only solution that I could find was to only use 2.4G on my router at home and cellular data when i'm out. Hopefully this issue will get fixed in a future update.

Chord_Hugo87 said:
The router could have an agressive beacon rate...which just constantly probing your phone for connectivity. nothing you can do.
Click to expand...
Click to collapse
Not actually true.
If you wish root, then my SkyHigh kernel has Synapse options to adjust all this. May or may not work for him, as unsure of the exact cause.
Once you root though, there's no turning back. Warranty void and if you do re-flash full stock firmware after, knox being tripped, won't allow deep sleep.

Robatic said:
My fiance and I had similar battery drain issues whenever we connected to 5G routers. The only solution that I could find was to only use 2.4G on my router at home and cellular data when i'm out. Hopefully this issue will get fixed in a future update.
Click to expand...
Click to collapse
Thanks for the insight, though it's unlikely my cheapskate school even has a 5GHz network ?
Sent from my SM-N920I using Tapatalk

UpInTheAir said:
Not actually true.
If you wish root, then my SkyHigh kernel has Synapse options to adjust all this. May or may not work for him, as unsure of the exact cause.
Once you root though, there's no turning back. Warranty void and if you do re-flash full stock firmware after, knox being tripped, won't allow deep sleep.
Click to expand...
Click to collapse
Wait, does the no deep sleep without Knox apply to older phones? Because I think that my S4's battery degraded after I rooted, unrooted, then upgraded to Lollipop (though the latter part was done by a Samsung rep)*

Chord_Hugo87 said:
The router could have an agressive beacon rate...which just constantly probing your phone for connectivity. nothing you can do.
Click to expand...
Click to collapse
I have the same problem on my home router. By setting a different beacon rate value, can I fix it?
---------- Post added at 12:14 PM ---------- Previous post was at 12:11 PM ----------
UpInTheAir said:
Not actually true.
If you wish root, then my SkyHigh kernel has Synapse options to adjust all this. May or may not work for him, as unsure of the exact cause.
Once you root though, there's no turning back. Warranty void and if you do re-flash full stock firmware after, knox being tripped, won't allow deep sleep.
Click to expand...
Click to collapse
I have the same problem; how can I fix with Synapse? I never changed the values of the kernel and do not know how.

Wifi battery drain on MM

Anyone having issues with wifi constantly destroying the battery even when off?
I've turned off wifi scanning and location mode is device only and yet when you look at battery stats wifi is still on.
Only fool proof way of turning it off is having all aforementioned settings in place and then disconnecting from wifi while I'm still connected instead of leaving it by moving out of range (leaving my house for example).
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Amerision said:
Anyone having issues with wifi constantly destroying the battery even when off?
I've turned off wifi scanning and location mode is device only and yet when you look at battery stats wifi is still on.
Only fool proof way of turning it off is having all aforementioned settings in place and then disconnecting from wifi while I'm still connected instead of leaving it by moving out of range (leaving my house for example).
View attachment 4005747
Sent from my XT1254 using Tapatalk
Click to expand...
Click to collapse
Am having the same issue... Nothing seems to fix it. I don't want to root and mess around with custom ROMs too.
Amerision said:
Anyone having issues with wifi constantly destroying the battery even when off?
I've turned off wifi scanning and location mode is device only and yet when you look at battery stats wifi is still on.
Only fool proof way of turning it off is having all aforementioned settings in place and then disconnecting from wifi while I'm still connected instead of leaving it by moving out of range (leaving my house for example).
View attachment 4005747
Sent from my XT1254 using Tapatalk
Click to expand...
Click to collapse
Sent from my Motorola Droid Turbo

Amerision said:
Anyone having issues with wifi constantly destroying the battery even when off?
I've turned off wifi scanning and location mode is device only and yet when you look at battery stats wifi is still on.
Only fool proof way of turning it off is having all aforementioned settings in place and then disconnecting from wifi while I'm still connected instead of leaving it by moving out of range (leaving my house for example).
View attachment 4005747
Sent from my XT1254 using Tapatalk
Click to expand...
Click to collapse
Hello, I hope I can help. I have the same issue the day after I received MM OTA, that wifi drained me more than 10% in the morning when I haven't done anything online.
I tried googling. In addition to location and scanning settings, there is one more you can try:
http://www.naldotech.com/having-problems-with-marshmallow-wifi-battery-drain-how-to-fix-it/
Now go to Settings > Backup And Reset > Network Settings Reset and reset settings.
Click to expand...
Click to collapse
The on screen instruction said I will lose all wifi settings, but turns out I don't need to enter the wifi and encryption keys again. I performed all these steps in one go and the problem disappeared the next day, so I don't really know which switch actually did the job. A week has passed, no more battery drain now and the battery usage is far better than I anticipated.
Hope this is helpful to you.

No dice my friend, still draining. I've disconnected from WiFi while in its range and am avoiding turning it back on and using 4G only
Wish someone would figure this out. Battery or WiFi is a pretty bad choice to be forced to make.

Amerision said:
No dice my friend, still draining. I've disconnected from WiFi while in its range and am avoiding turning it back on and using 4G only
Wish someone would figure this out. Battery or WiFi is a pretty bad choice to be forced to make.
Click to expand...
Click to collapse
Have you really tried reset network setting, as I quoted in my earlier reply, and reboot immediately? If this doesn't work, do you have time to do reset factory default? A complete factory reset can sometimes be the last way out. No guarantee though.

I was having the same problem + cell was getting hot too often. I did a factory reset and the 2 issues were solve. You might need to try that.