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Extremely bad battery Life for 3 Days.

Hey,
3 days ago my mobile Internet flatrate ran out, I don't really think that this has anything to do with this but I try to provide as much information as I can.
My Nexus S was bought December last year and never really had any problems.
But now for 3 Days I have to charge that thing every damn day and the battery only lasts 18-19 hours instead of 2+ days. I haven't really used the phone in the last 3 days except from recieving calls and using whatsapp.
I have also not installed any apps in this time.
Here a screenshot from my current battery live. (Seems to be always awake)
(ICS 4.0.4 Rooted, Stock Kernel, Stock Launcher.)
Thank you guys in advance!

What does it say is the top consumer of power on the battery usage percent chart. We can't help you very much without that. Also, grab BetterBatteryStats. That will help tremendously as it can damn near narrow it down to a single culprit.
Sent from my Nexus S using XDA

chronophase1 said:
What does it say is the top consumer of power on the battery usage percent chart. We can't help you very much without that. Also, grab BetterBatteryStats. That will help tremendously as it can damn near narrow it down to a single culprit.
Sent from my Nexus S using XDA
Click to expand...
Click to collapse
Oh damn haven't even looked at it.
Says 45% Whattsapp
32% Google Services
will download better Batterystats now. But first I will just reinstall whatsapp.
EDIT: I just reinstalled Whatsapp and will now wait what the battery says in a few hours before I buy betterbatterystats.
Thank you so far, will report back.

Yeah. Those two are probably trying to "phone home" constantly, thus causing a drain. That may be what the issue is. From the looks of it, it looks like your signal isn't stellar either. How good is Whatsapp over EDGE speeds? The 3g connection just might not be strong enough, trying to search for a signal and also draining the battery.

chronophase1 said:
Yeah. Those two are probably trying to "phone home" constantly, thus causing a drain. That may be what the issue is. From the looks of it, it looks like your signal isn't stellar either. How good is Whatsapp over EDGE speeds? The 3g connection just might not be strong enough, trying to search for a signal and also draining the battery.
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Click to collapse
Your guess is quite good, because in my room and ONLY in my room there are some severe problems with network connectivity for almost everyone.
(But battery life was good just a few days ago?)
I currently have no mobile Internet and only use WLAN. Just disconnected phone from charger and will now see how it runs.

bobdowl said:
Your guess is quite good, because in my room and ONLY in my room there are some severe problems with network connectivity for almost everyone.
(But battery life was good just a few days ago?)
I currently have no mobile Internet and only use WLAN. Just disconnected phone from charger and will now see how it runs.
Click to expand...
Click to collapse
If you have "no mobile Internet" and WiFi is off (as in screenshot), this is your issue. The android processes are trying to re-connect keeping your phone from deep sleep. In Mobile Network Settings, disable Data. Turn on WiFi, and set Keep WiFi on during sleep to Always. When you are out of WiFi range, disable background sync.

I've noticed something on 4.0, at least in my case. Huge wake locks for no reason in airplane mode. The phone home thing is most likely the cause. Google must have changed something in the way their apps operate because this never happened in gingerbread for me.

Well, so I have observed it a little more and battery usage by google services is now up to 70%.
Thank you for the suggestions I'll try now.
But why the hell does this issue come just now? I have 4.0.4 since it came out and the issue just appeared about 5 days ago.

I wish I knew. I've got mine in airplane mode now, but no SIM in it. I've got a G2 as my daily driver now. The Nexus hasn't had any more of the airplane mode wakeups strangely enough though. Wish I knew what was actually causing mine.

chronophase1 said:
I wish I knew. I've got mine in airplane mode now, but no SIM in it. I've got a G2 as my daily driver now. The Nexus hasn't had any more of the airplane mode wakeups strangely enough though. Wish I knew what was actually causing mine.
Click to expand...
Click to collapse
So to report back again, I tried SpookyTunes suggestion for one cycle of battery life.
Then after recharging I went into the app management and force-stopped the google services framework and deleted the cached files afterwards.
So now I'm back to 3% battery usage (from Google Services Framework) for the last hour.

I would give it more time to see what it uses over the course of the day.
Sent from my Nexus S using XDA

Okay just to deliver on my part and report back.
Here's a screenshot of my battery life now.
Google Service isn't even shown in the battery list anymore!

any news????

Impact on phone battery life?

I know this will be completely relative to the amount of notifications you have pushed to the sw2 but....what kind of impact are you seeing in regards to your phone's battery life?
Basically, does reduction in phone screen-on time and foreground cpu processes negate the impact of the bt and smartwatch connect running in the background of your phone?
Thanks!
Sent from my LG-D800 using xda app-developers app

randaddy said:
I know this will be completely relative to the amount of notifications you have pushed to the sw2 but....what kind of impact are you seeing in regards to your phone's battery life?
Basically, does reduction in phone screen-on time and foreground cpu processes negate the impact of the bt and smartwatch connect running in the background of your phone?
Thanks!
Sent from my LG-D800 using xda app-developers app
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Click to collapse
Difficult to quantify accurately without a with and without comparison on a strictly like for like basis but I haven't noticed any significant impact on my phone's battery life. I was worried that maintaining a constant bluetooth link and keeping SmartConnect and the SW's notification elements constantly running in the backgroung (ie, not Greenified) would be a big drain but I've not seen any of this. If anything, not having to constantly get my phone out and turn the screen on everytime it receives some form of message may well be saving my phone's battery - it's certainly been much more convenient for me.
Nexus 5 (rooted, stock 4.4.2)

Prepagan said:
Difficult to quantify accurately without a with and without comparison on a strictly like for like basis but I haven't noticed any significant impact on my phone's battery life. I was worried that maintaining a constant bluetooth link and keeping SmartConnect and the SW's notification elements constantly running in the backgroung (ie, not Greenified) would be a big drain but I've not seen any of this. If anything, not having to constantly get my phone out and turn the screen on everytime it receives some form of message may well be saving my phone's battery - it's certainly been much more convenient for me.
Nexus 5 (rooted, stock 4.4.2)
Click to expand...
Click to collapse
Same. I was worried also about BT, but nothing happened Once i saw Smartwatch Map2 consuming battery, but it is gone too. I found some feedbacks about that app consuming battery, but that's another story and always can be uninstalled...
Sent from my GT-N8000 using Tapatalk 4

Thanks! This is exactly what I was hoping to hear.
The SW2 happened to be on sale at Best Buy today, needless to say I'm now part of the club! =)
Sent from my LG-D800 using xda app-developers app

Welcome mate! Enjoy your new toy
Sent from my Samsung Galaxy Note 2
N7100XXUEML3 JB 4.3

I'm pretty satisfied too, it doesn't seem to drain too much the phone battery! The only thing i noticed was the gmail extension for smartwatch, in the first days it seemed to have a little bit more of battery drain compared to the other extensions, so i removed it. With Watchit you can see the notifications of gmail also, so no problems at all welcome to the SW community
Sent from my Xperia SP using xda app-developers app

Wore my watch and used my Samsung GS3 (rooted 4.1.2, BoneStock 3.4) and it chewed up battery way faster than normal. Previously my rooted phone could get two days between charges with light usage and definitely through a full day with moderator heavy use. Only extensive GPS use would wear it own under a day. Using SW2 seems to draw just under the GPS draw. I only have the stock Sony extensions for Gmail, messaging, slide show, music, calendar. I read that the Gmail extension draws a lot battery but I can't use other notification apps like Watch It so I push all my email to my Gmail account to get notifications on my watch.
Sent from my TouchPad using xda app-developers app

I have a Note 3 and had this watch since xmas and i can say with all the test i made, with battery monitors, checking wakelocks, trying 2 identical days with and without the watch tethered, there is no significant impact of this watch on the battery life of my Note 3, there is less than 2% difference between the days i have the watch connected and those i dont. That could be considered as a margin of error. Or maybe one day a had a couple more notifications that the other, anyways, there is no significant impact.

my phone battery is bad but I haven't noticed that the battery drain more with the smartwatch 2,
before using the smartwatch 2 I had always running BT on the background (so I can step in to the car and connect with the radio ),
In fact yesterday i uses my smartwatch 2 allot in in place of my phone and my phone fell down when i was home normally it will shut down hours before!
So I think it doesn't effect allot of you'r phone batery.

It's currently chewing up a good 20% plus of my battery consumption. Well, "com.sonyericsson.extras.liveware.extension.userLabel" is chewing up 20% plus. I think that's the long winded name for "Smart Connect", that or the "SmartWatch 2" app.
"com.sonyericsson.extras.liveware.extension.userLabel" under 'included packages' states:
Facebook - Smart Extras
Weather Widget - Smart Extras
Find Phone - Smart Extras
Twitter - Smart Extras
Missed Call - Smart Extras
I'm assuming that however I have those Smart Extras setup determines how much impact it has on the battery i.e. Weather Widget - Smart Extras updating the weather every 15 minutes will eat up more battery then setting it to every 1 hour.
Question: If you install something like "Watchify", and you use that to handle notifications for what is being currently handled by the Smart Extras in the list above, is it safe to remove "Smart Connect"?

Chris_c81 said:
Question: If you install something like "Watchify", and you use that to handle notifications for what is being currently handled by the Smart Extras in the list above, is it safe to remove "Smart Connect"?
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Click to collapse
If you remove Smart Connect I believe your watch will loose connection with your phone. At least that's what I found.
Try it for yourself though, easy enough to put back on.

AlexOB1 said:
If you remove Smart Connect I believe your watch will loose connection with your phone. At least that's what I found.
Try it for yourself though, easy enough to put back on.
Click to expand...
Click to collapse
Yes I think you're right. Delving deeper in to third party apps it would seem they all use Smart Connect as a kind of vehicle between watch and phone.
Sent from my GT-N7105 using Tapatalk
---------- Post added at 06:31 PM ---------- Previous post was at 06:00 PM ----------
Chris_c81 said:
Yes I think you're right. Delving deeper in to third party apps it would seem they all use Smart Connect as a kind of vehicle between watch and phone.
Sent from my GT-N7105 using Tapatalk
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Wow. As I mentioned earlier, Smart Connect was hogging a good 20%+ battery. I have been monitoring it all day and I've been out at work on my mobile data during that time. Now I've been back home on WiFi only a couple of hours, Smart Connect has dropped right down to 5% battery usage! Would definitely seem as though while its using the mobile data to forward notifications it hits the battery harder then it does over WiFi.
That sort of makes sense as under normal circumstances mobile data, as it's constantly trying to find best signal, always hits the battery harder then WiFi which is generally pretty stable. So factor in Smart Connect and it makes sense.
I really need to see what my phones battery life would be like had I not been charging it on and off throughout the day. I'll try and start at 100% tomorrow morning and just let it run till I'm home and see what percentage it drops and how much of that drop was Smart Connect.
My phone is the Note II. Going forward battery capacity will be high on my priority prerequisite list for my next mobile phone.
Sent from my GT-N7105 using Tapatalk

I use 2x battery, to just turn on auto-sync/wifi/3g every 15 minutes, rather than having permanent push. Saves tonnes of power if you can content yourself with that.
It also has a SmartWatch extension which is nice.

AlexOB1 said:
I use 2x battery, to just turn on auto-sync/wifi/3g every 15 minutes, rather than having permanent push. Saves tonnes of power if you can content yourself with that.
It also has a SmartWatch extension which is nice.
Click to expand...
Click to collapse
Yes, I also use 2x battery, and I can confirm this. In my opinion the best battery saver out there. And works nicely with the SW2.
Sent from my C6833 using XDA Premium 4 mobile app

nice trick that 2x battery, data always chews a lot of battery, but with the z ultra, that screen is a killer, alltough i put it on 20% brightness and still see ok, but since i got the SW2 it does drain faster, idk why is that, before i had this toy i could go a solid day listening to grooveshark and googling contantly, now i had to buy a magnetic dock to keep it going.Oh what we do for our gadgets )

Gear2/Tizen battery stats and troubleshooting

I decided to document battery usage on my gear2 after initially running into some trouble with the battery. I bought 2 brand new gear2's and when they arrived, I connected one to my note 3, which has a custom rom, and the other to a s5, with a stock rom. I noticed right away that the gear connected to the note 3 was draning battery much faster. This is what I set out to troubleshoot.
First of all let me explain the issues I had between the note 3 and the gear2 that was causing the battery drain; these are likely due to my rom being custom. When I first attempted to pair the gear to the phone, it would say device not supported. To even get the gear paired I had to use titanium back to remove anything that was related to the gear manager or gear in general. I then reinstalled the latest gear manager apk from the samsung store. This did not go smoothly and I had to find some missing apks as well because the app kept crashing. I didn't document exactly how I got it working because I was just trying any and everything to get it working. I know for sure that I was missing samsungservice apk and that was causing the app to crash at one point.
Once I got it paired up, I noticed when I would boot the phone "sensor service stopped" would show up. Also, when I would open s health multiple "health service" and related services would say that they stopped. I had to remove each one of those services with titaniuim backup and then reinstall the latest s health and let s health reinstall the services I removed. Sounds complicated and most likely no one will even run into these issues, but I posted this just in case. Also, I left "sensor service" uninstalled and it doesn't appear that s health reinstalled it and everything is functioning without it as of right now.
As long as gear manager is functioning correctly and there are no error messages from s health and everything is updated, there should be no abnormal battery drain. The following are some scenarios that I documented to show what normal battery drain should look like.
First thing I did was charge the gear up to 100% and let it sit overnight, for 8 hours while I slept. I disabled bluetooth so it wasn't connected to the phone, I also went to recent apps and made sure all programs were closed and that all sensors were disabled; sleep, pedometer etc.. After 8 hours of this I lost a grand total of: 1%. I woke up with 99% battery after 8 hours.
Next night I charged to 100%, connected to the phone via bluetooth, and closed all apps again and made sure no sensors were active and turned of notifications. After 8 hours of sleeping I had lost 4%. I woke up at 96% battery remaining. So the idle drain of just the gear by itself while connectd to the phone via bluetooth is half a percent an hour. Not bad at all.
Next I wanted to test how Tizen behaved with its apps. I read that some were getting better battery life by closing all apps down when not in use. I wanted to test this. So I did the same exact thing from the previous night except I opened every possible app as well. So bluetooth connected, no sensors active, no notications, but I opened every possbile app to load them up in the recent apps (memory). My findings were exactly the same as when I closed all apps the night prior. I lost 4% after 8 hours. So don't close out any apps, it does nothing on Tizen.
I next wanted to test the heart rate monitor as it was the single reason I bought the watch to begin with. Results were impressive. I turned the continual heart rate monitor on, running mode under exercise, and monitored my heart rate for 30 minutes (the amount of time I usually run in the gym). I lost 2% in 30 minutes. Not bad at all!
Next I tested one of the newer features of the gear 2 which was its ability to store its own music and play it back via bluetooth. I hooked up some bluetooth headphones and played continual music for 30 minutes straight. I lost 6% in 30 minutes. Thats 12% an hour. A little more than I'm comfortable with and it doesn't even sync with google music. It works very well, but just drains battery too much. Much better to use the media controller and have the phone play all the music.
For the final test I wanted to do a day of what normal usage might be like. I had bluetooth connected all day, notifications enabled, motion enabled (wrist motion to turn screen on), brightness at 2, I sent/responded to 10 text messages, received 25 or more notifications, 4 short phone calls, didnt use any monitors at all (heart rate, sleep, pedometer). I didn't play any music either. Ended up with 72% battery at the end of the day. At that rate I could have gone for 3 and a half days without charging. NOT BAD AT ALL! My gear 1 would come nowhere near that number.
Anyway I hope this may be beneficial to people struggling with battery life or considering a gear2 purchase because Of battery life. I know for me personally, battery life is the reason I returned the gear 1.

Nice testing and information but I don't see any conclusions about why the one connected to your Note 3 had worse battery life other than its custom ROM. Did you try swapping watches to the other phone and running the same tests? Did you restore the Note 3 to stock and get those results?

JimSmith94 said:
Nice testing and information but I don't see any conclusions about why the one connected to your Note 3 had worse battery life other than its custom ROM. Did you try swapping watches to the other phone and running the same tests? Did you restore the Note 3 to stock and get those results?
Click to expand...
Click to collapse
Sorry I wasn't clear. I was getting drain when I first was able to get the gear connected to the note 3. The gear manager app and s health were both showing different errors and crashing though, so that was the reason for the drain. Once I fixed s health and gear manager the drain was on par with the other gear. If those 2 apps are screwed up and crashing or showing errors it will keep sending/requesting info from the gear or something which kills battery.

thanks a lot for your info
i really hope we gonna have a good app to see what is eating our battery...
really strange that in tizen they don't have it ...

I downloaded the recent upgrade on my gear 2 and the battery life significantly reduced from 3 days to <24 hours! I switched off bluetooth and somehow it improved to 1.5 days. Something with the latest is caused my Note 2 to constantly ping the gear2 watch.
Sent from my GT-N7100 using Tapatalk

dreamur said:
I downloaded the recent upgrade on my gear 2 and the battery life significantly reduced from 3 days to <24 hours! I switched off bluetooth and somehow it improved to 1.5 days. Something with the latest is caused my Note 2 to constantly ping the gear2 watch.
Sent from my GT-N7100 using Tapatalk
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Click to collapse
Which software version are you talking about exactly?

2.0.14042803 to be exact. Thanks.
Sent from my GT-N7100 using Tapatalk

dreamur said:
2.0.14042803 to be exact. Thanks.
Sent from my GT-N7100 using Tapatalk
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Just read me what it says in "about gear" on the watch itself. What it says for software version.

R380XXU0BNDD and I have just upgraded gear manager to 2.1.14. Thanks in advance!
Sent from my GT-N7100 using Tapatalk

dreamur said:
R380XXU0BNDD and I have just upgraded gear manager to 2.1.14. Thanks in advance!
Sent from my GT-N7100 using Tapatalk
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Click to collapse
I have the same gear manager but I am still on the stock ND8 and am not having any issues. Maybe try to flash back to ND8 if possible. There may be an imcompatibility somewhere. NDD is made for devices of other countries, so who knows.

I am based in the Philippines. Just today I got another upgrade on my gear 2 to BNE5 and still the unusual draining continues. Must be the GM app?
Sent from my GT-N7100 using Tapatalk

dreamur said:
I am based in the Philippines. Just today I got another upgrade on my gear 2 to BNE5 and still the unusual draining continues. Must be the GM app?
Sent from my GT-N7100 using Tapatalk
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Clear data on the manager app and start from scratch. If that doesn't work we may have to uninstall the app completely and start over. That's what I had to do.

Guys, have a look at this thread. Could be applicable to Samsung devices as well...

Thank's
lightdelegate said:
thanks a lot for your info
i really hope we gonna have a good app to see what is eating our battery...
really strange that in tizen they don't have it ...
Click to expand...
Click to collapse
I also appreciate the info

Uninstalled GM app from phone and reset gear 2 and reinstall with just stock apps. Battery is still draining and worse, S health cannot retrieve profile from samsung server.
Sent from my GT-N7100 using Tapatalk

Fixed! Deleted and reinstalled google account somehow cleaned my phone book! Now battery is draining 1% per hour!
Sent from my GT-N7100 using Tapatalk

Sudden battery disaster

Nothing knowingly changed on my usage (did download a slightly more colourful watch face but stopped using it and back to black) switched off S-Voice and disabled overnight notifications, don't use AOD, and battery is getting worse. 99% at 11.30pm last night and now at 8.20pm next day it's at 21%
Any suggestions? (UK model S3)

Disable Settings->Gear Info->Report Diagnostic and usage info See if that helps.

stewarta13wsb said:
Nothing knowingly changed on my usage (did download a slightly more colourful watch face but stopped using it and back to black) switched off S-Voice and disabled overnight notifications, don't use AOD, and battery is getting worse. 99% at 11.30pm last night and now at 8.20pm next day it's at 21%
Any suggestions? (UK model S3)
Click to expand...
Click to collapse
You might also want to force a reboot by Holding in the Power Button. If something odd happened a reboot might clear it.

"You might also want to force a reboot by Holding in the Power Button. If something odd happened a reboot might clear it."
Sorted - thanks. Not sure why, but sorted

Yeah mine went to **** today after weather updated in the gear store. Battery stats showed the weather app drained 57%. Rebooting the watch fixed it and the drain subsided.

craya said:
Yeah mine went to **** today after weather updated in the gear store. Battery stats showed the weather app drained 57%. Rebooting the watch fixed it and the drain subsided.
Click to expand...
Click to collapse
Still new to the Gear S3. Where do you find the battery stats for what apps might be using what percentage? Or is it a 3rd party app that shows that info. Thanks.

fred2546 said:
Still new to the Gear S3. Where do you find the battery stats for what apps might be using what percentage? Or is it a 3rd party app that shows that info. Thanks.
Click to expand...
Click to collapse
Open gear manager. Go to settings tab. Scroll to bottom and click on About Gear. click on the battery icon.

craya said:
Open gear manager. Go to settings tab. Scroll to bottom and click on About Gear. click on the battery icon.
Click to expand...
Click to collapse
Thanks. I was looking on the watch not in the phone app - found it. Watch faces are using quite a bit in my Gear.

So I have been getting about 4 days usage up til last night, I normally recharge after about 3 days.
However when I got up this morning my watch was off and when I started it it was on 1 %, this was after 1d 21h of usage :-
Samsung health 29%
watch faces 16%
Notifications 9 % etc
I have not changed the way I use the watch or installed anything new in the last couple of days apart from Samsung pay on the phone (it is not available on the watch yet in UK)
So it looks like samsung health any ideas why its draining the battery?

I found this happens on my S3 and S2 (prior to that), i do a full reset and sorted.
Yes a pain, but i don't have any 3rd party apps and its just tweaking the settings, 15 mins tops.

I just had this begin this week. Used to use the watch and have it last 18hrs with >35% batt at the end of that period.
Suddenly in the middle of this week it began making it less than 8 hrs.
Watch is 1 month old.
Reboots/power offs have not helped. Will try full reset.
Little button on back of watch?
Sent from my SM-N910T3 using XDA-Developers Legacy app

f4phantomii said:
I just had this begin this week. Used to use the watch and have it last 18hrs with >35% batt at the end of that period.
Suddenly in the middle of this week it began making it less than 8 hrs.
Watch is 1 month old.
Reboots/power offs have not helped. Will try full reset.
Little button on back of watch?
Click to expand...
Click to collapse
Same problem here on my wifi classic gear s3 idk what's the cause if it like not even 6 hour and it's dead sometimes out of nowhere

Same here. All of a sudden, bad battery life. Turning off S Voice wakeup made things a lot better.
Sent from my SM-G935U using Tapatalk

On Android Wear weather and smarter watch faces normally takes quite a lot of battery.
Skickat från min SM-G950F via Tapatalk

I had the same issue for a day, my battery was drained before I left work. I tried power cycling the S3 multiple times without resolution. So, when I got home and charged the S3 back up to troubleshoot the problem, I ended up rebooting my phone that the S3 was tethered to. After rebooting my phone, my S3 was back to normal battery life. Go figure!
Sent from my SM-T800 using XDA-Developers Legacy app

dondavis007 said:
On Android Wear weather and smarter watch faces normally takes quite a lot of battery.
Click to expand...
Click to collapse
It was definitely not an app gone wild. In fact, the gear app showed the *only* battery usage was the watch face, and I've been using the same one for weeks.
In my case, as everyone else said, a factory reset fixed whatever the issue was. I restored the same apps and faces from backup. Battery life is back to 1.5 days with screen always on.
Sent from my SM-N910T3 using XDA-Developers Legacy app

Aaaaaand it's back. Been running solid for days with ample battery remaining.
Last night I powered off the watch, which I had not done since I factory reset last week. This was the first time it has been rebooted or power cycled since the reset.
I noted it showed 55% battery when I put it on the charger last night. That was typical of what I've seen over the last several days after 18+hr days.
This morning I powered on at 7:30am. I have not run any apps on it, or used it for anything other than a watch with the same face I've had the entire time.
In 3.5 hours the battery has dropped to 75%.
The last several days it's been above 90% until well after lunch, even with use.
Don't know what is going on.
Sent from my SM-N910T3 using XDA-Developers Legacy app

Update on today:
7:30am 100%
5:30pm 20% (last 2 hrs in power save mode)
Previous 5 days:
6:30am 100%
10:30pm >50%
(That's with always on display)
This doesn't feel like a battery calibration issue. The previous days I get a solid 36 hrs with AOD on.
Sent from my SM-N910T3 using XDA-Developers Legacy app

Do you guys know if the Batter drain is greater if the watch is not connected to the phone? I got a Classic and Frontier. Went to bed with about 5% difference in battery...and woke up to find a 20% difference between the two.

SiNJiN76 said:
Do you guys know if the Batter drain is greater if the watch is not connected to the phone? I got a Classic and Frontier. Went to bed with about 5% difference in battery...and woke up to find a 20% difference between the two.
Click to expand...
Click to collapse
The cellular radio is a major drain on the battery. It can be set to ON, OFF, or AUTO. By default it's set to AUTO and will be activated when disconnected from the phone. Under the best circumstances in standalone mode, it can drain at more than 2% per hour. In an area with a weak signal, the battery can be drained dry in a handful of hours.

Looks like I'll have to bring my charger to work..

So I got the s8+ two days ago and I gotta say, I'm not that impressed with the battery, my nexus 6p was more reliable.. Just got home from work and had ~17% left with 3.5h sot. This means that when I get home from work I'll have to charge my phone for half an hour atleast before I can go out and enjoy my spare time, I can't just go out straight from work
Anyone have any pointers?
Some key notes, no wifi at work (working within the government in Sweden is retarded)
And the 4g is pretty weak.
Brightness is around 50% and I have disabled bixby and 100 other services (package disabler)
Played games for like 1h
Some browsing, no video watching
Nobody called me during the say because I'm an asshole
That's pretty much it

Two days isn't really a good test to see what the battery life will be like. Especially since you are installing apps and setting up the phone.
Sent from my SM-G955U using Tapatalk

I suggest use a black theme to save battery, as AMOLED screens doesn't need much power producing black color.
Also in the bottom of Battery settings, there's "always sleeping apps". Add all apps here that you don't need running in the background.
Also disable mobile internet if not needed, or at least turn on data saver.
Sent from my SM-G955F using Tapatalk

Katt50 said:
Two days isn't really a good test to see what the battery life will be like. Especially since you are installing apps and setting up the phone.
Sent from my SM-G955U using Tapatalk
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BratPAQ said:
I suggest use a black theme to save battery, as AMOLED screens doesn't need much power producing black color.
Also in the bottom of Battery settings, there's "always sleeping apps". Add all apps here that you don't need running in the background.
Also disable mobile internet if not needed, or at least turn on data saver.
Sent from my SM-G955F using Tapatalk
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Yeah im happy both of you responded to me, I do realize that 2 days is way too soon to judge the battery, and I am not going to do so, you are both right and I did follow the advice you posted, got all the apps I don't need running in the background etc! Thanks guys, let's see if I end up with more %tomorrow after work

WOW! I wonder what's draining you so quickly? I'm getting right at 7hrs SOT with no WiFi and marginal cell service at work!

You must've disabled an app that keeps pinging the system. Try to enable all apps and go from there. You shouldn't have to disable anything. Just watch for resource hungry apps like Facebook or Snapchat

subyfan said:
WOW! I wonder what's draining you so quickly? I'm getting right at 7hrs SOT with no WiFi and marginal cell service at work!
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guaneet said:
You must've disabled an app that keeps pinging the system. Try to enable all apps and go from there. You shouldn't have to disable anything. Just watch for resource hungry apps like Facebook or Snapchat
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Yeah im not enjoying this.. it's been 3 hours, barely used the phone and im down to 80% already (30 min sot)
I renabled everything in package disabler again, won't be using it untill people get more comfortable and researched in the subject of matter.
4g signal is pretty bad at work though, and these idiots dont have wifi lol. (getting like 1-2 bars)

Maybe it was package disabler causing the problem, if you disable something which something else relies on it might constantly try and connect to the disabled package causing battery draining
if you do continue to have a poor experience i definitely suggest using a pure black theme, This will boost your SOT buy a few hours minimum

MrAshMan said:
Maybe it was package disabler causing the problem, if you disable something which something else relies on it might constantly try and connect to the disabled package causing battery draining
if you do continue to have a poor experience i definitely suggest using a pure black theme, This will boost your SOT buy a few hours minimum
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I did re-enable all apps within package disabler again in the morning, im at 65% now thats 5h battery usage and 1.5h SOT.
How are people getting 8-9 hours SOT... HOW
also I am using a black theme atm, it's the "high contrast" on samsung theme store
I appreciate the help

You may have a dud. I'm coming from a 6p too and I usually have about 30% batter at the end of the day when I was shutting down right before leaving. I run a dark substratum theme with brightness at 35%. I get 6hrs but I stream video and game off and on.Give it a few days and if things don't improve try a new one.

alldino said:
I did re-enable all apps within package disabler again in the morning, im at 65% now thats 5h battery usage and 1.5h SOT.
How are people getting 8-9 hours SOT... HOW
also I am using a black theme atm, it's the "high contrast" on samsung theme store
I appreciate the help
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Hey man. I had this same issue when i bought my phone. Apparently my phone wasn't going into deep sleep mode. Install an app called CPU spy and you'll be able to see if you're phone isn't going into deep sleep due to an app. If your phone is going into deep sleep but you still have battery drain like that. It could be a defective device. Btw the issue I had was facebook app. I disabled it and now I'm getting at least 8:30 hours sot.
Sent from my SM-G955U1 using XDA-Developers Legacy app

vermiciouskanid666 said:
You may have a dud. I'm coming from a 6p too and I usually have about 30% batter at the end of the day when I was shutting down right before leaving. I run a dark substratum theme with brightness at 35%. I get 6hrs but I stream video and game off and on.Give it a few days and if things don't improve try a new one.
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lildoggs said:
Hey man. I had this same issue when i bought my phone. Apparently my phone wasn't going into deep sleep mode. Install an app called CPU spy and you'll be able to see if you're phone isn't going into deep sleep due to an app. If your phone is going into deep sleep but you still have battery drain like that. It could be a defective device. Btw the issue I had was facebook app. I disabled it and now I'm getting at least 8:30 hours sot.
Sent from my SM-G955U1 using XDA-Developers Legacy app
Click to expand...
Click to collapse
I'll look into that theme, thank you for the tip Vermicious!
I am going to install cpu spy, I do use facebook, i dont know why tbh, might actually disable it and might just use the messenger app whitch is the app i pretty much only use anyways (for social media)
I have verified that I can return the phone unlike my note 3 that I bought a couple of years ago (battery laster 4 hours first charge, wanted to return it but since i had peeled the plastic off they rejekted it lol, such dicks xD)
Other than the battery being a big off the device is absolutely incredible, I am happy I gave samsung another chance, (I had sworn to never use a samsung device again after the note3)
again, many thanks for taking your time to look into my issue!