yashsingh1/xdaforums huggingface dataset:
[Nexus S General] jokkir:
Reserved One
[Nexus S General] jokkir:
IMAGES

ROM - Jellbean 4.1.1 OTA from here: http://goo.gl/AXr2d

KERNEL - Default/Stock kernel

GOVERNOR - Default/Stock

GENERAL USAGE

Usage was, in my opinion, light and didn't really do much. Most of the time, I was on 3G only to go on WiFi when in a Starbucks. I turned off my phone when watching The Dark Knight Rises and trying to save the most battery but that didn't really seem to help. I used the camera once in a while but didn't listen to any music.

CONCLUSION

So far, this battery seems kind of... bad. Especially with my usage (which I thought was light), I thought I could get more screen on time than just 2h 14m. I'm a tad disappointed and might go back to ICS just for the better battery life.
[Nexus S General] g1user101:
ROM: Unofficial CM10 by Lego

Lazy gov. Air kernel test 112.

The 2 hours of screen usage were from playing temple run, xda, and fb.
[Nexus S General] chronophase1:
That's a good cycle IMO ^. Have you done a factory reset OP? Force of habit has me doing it anytime I do an update to avoid any issues. It also seems like you have a crappy signal at times. I haven't had a chance to actually judge battery life but mine seems to be on track to be about the same as it was as on ICS though.
[Nexus S General] jokkir:
It's weird because I'm using the same radio as on ICS and I seem to be getting worse signal on Jellybean? I might reflash a new JB ROM and try that instead.
[Nexus S General] AlanS181824:
I have a 2300mAh battery on stock JB i might upload some screenies later but i havent seen the battery life decrease it seems to be the same

Kind Regards

AlanS181824
[Nexus S General] kwabby:
JB battery life better than ICS
[Nexus S General] chronophase1:
Yeah. I'm gonna probably go back my KF1 radio once I update my ROM tonight.
[Nexus S General] wheeqo:
IMO I always do a preliminary test the battery when the phone switch to airplane mode in a night, if the drain only 1% then the ROM is quite good.
[Nexus S General] chronophase1:
Heh. I wish my phone idled that well. Haha.
[Nexus S General] EleventhHour2139:
Right? I miss the GB battery life, could leave GPS and 3g on all night, not touch it, and lose 2% in 10 hours. With ICS I was grateful if I could get it down to 1.5%-2% in an hour. And Google Now is too awesome to turn stuff off for, so JB is even worse :(
[Nexus S General] NicholasQ:
My battery life is absolutely horrible. I think my battery is bad though. I've had it since I got the phone. When the nexus came out.
[Nexus S General] chronophase1:
Its one of those pay to play situations. My job has places for me to safely charge my phone so the battery isn't too big a deal for me. Best bet is to carry a spare charger. It is after all a pocket computer. Sucks, but until battery tech catches up, there isn't much us or many other smartphone users can do.
[Nexus S General] kikikaka:
I think the background sync drains battery when idle. With sync on during idle, the batt drops ~3-6%/hr. If sync is turned off, it becomes ~1%/hr. (using 3G)
[Nexus S General] chronophase1:
Exactly what Google things syncing would cause such a drain? I have this type of usage but all I have is Gmail syncing and I only get a few emails a day. I have obviously noticed increased life disabling Gmail, but how could it be using so much if it is push?
[Nexus S General] TrIn@dOr:
I'm getting, at least, the double than before...stock, unrooted
[Nexus S General] FirePoncho86:
I don't understand this.....

The only thing using CPU is Android system at 5-15%... why is this happening? The screen was off for at least 8 minutes
[Nexus S General] jayjay3333:
Since it just started up, and I'm guessing it is syncing like crazy. Calendar, instant upload if you have that in G+ or drop box chrome, contacts, drive, Gmail... Etc. Location is happening (maps, and latitude), checking for updates, weather. Check again in an hour and see if it has settled.
[Nexus S General] MRsf27:
I havent noticed a problem with my battery. It's actually been pretty much the same. I go almost the entire day not charging it on normal use (almost 12 hrs). Heavy use with me is constantly playing games, I get maybe 3-5 hrs depending on screen brightness. It's pretty much the same as ICS for me:)
[Nexus S General] madd0g:
Not on ondemand governor, which is stock for NS. Interactive does that, but on GN.
[Nexus S General] alien_x:
Well... I flashed JB factory image and I don't have problem of battery draining when ph is sleeping like lot of people reported. I easily get 4 hrs screen on time while browsing on 3G network.
[Nexus S General] migueldbr:
I see people with battery life similar to yours but even on ics i never had it that good. max screen on time i got on ics was probably like 4 hours,4h30 perhaps.

Yesterday at the end of the day i had 50% battery left with 2h on screen time with JB (phone turned on for 16 hours).

btw i always have google now and sync disabled, and only use 2G(same with ICS)
[Nexus S General] itline:
Actually my record is up to 2days!!

i flash stock rom with cwm, full wipe and not restore anything.

use 2g

no gps

no connect to data and wifi all the time

no Bluetooth and gmail sync

kill apps

and my talk time is very short
[Nexus S General] chronophase1:
You could probably do away with killing applications unless they go rogue. Properly coded apps exit out correctly when the back button is pressed. Unless you constantly get emails, disabling sync may not give you much, if anything(something more on that further down). Just having GPS enabled shouldn't do anything, but Maps has a tendency to start up when GPS in turned on(use Autostarts). The data stuff is spot on though. One thing to note about sync, which I have noticed time and time again. Sometimes if Android System is extremely high on my usage list at the end of a cycle, BetterBatteryStats will report a syncloop wakelock. It's weird though because I travel to and from work in a good coverage area so something must go wrong during a sync process that just keeps the phone awake for some reason. What I've listed is how I set all my phones up out the box once they're rooted. Everybody has their own methods of madness, but at least we agree on some things. I'm still just utterly confused as to why my Nexus has such horrible battery even though my usage pattern has barely changed. I'm definitely not a power user. I pull all my RSS feeds when I wake up, stream music while charging, same with videos. Some browsing, texts, and maybe a short call. My main complaint is idle drain. I couldn't care less about the screen because I know it's going to romp the battery(white web pages FTL).
[Nexus S General] WeldFire:
Battery Life

ROM - ASOP Weldfire prv.4

KERNEL - AOSP

GOVERNOR - On Demand

I have pretty good battery life. It is way better than on ICS.
[Nexus S General] p.pavljasevic:
Those are actually my settings as well, except i have Gmail sync enabled but i still can't get past 2,5 hours.today i flashed cm9 back. That will help for sure.

Thanks anyway.
[Nexus S General] C4SCA:
Found/confirm another bug/battery drainer on JB!

browser sync drain your battery a little even with sync off and no internet connection.

hope this help for more 30 min of battery

if yes click that thanks button please
[Nexus S General] smoka206:
Battery life has been good to me on Jellybean, I don't have maps installed in favor of Waze. I can get 3 to 4 hours of screen time witch for my usage is the almost as good as ICS. I am testing Bedalus Kernel right now, I was using airkernel. I had maps installed for a bit to see how it works with jellybean, I noticed it had multiple process running and I suspect that is the main culprit for killing the battery and keeping the phone awake. I'm going to test the XeonHD release 8.5.12 (BEST JB ROM) to see if its any better the the previous version with bedulas kernel (very nice kernel if you haven't tried btw).
[Nexus S General] HurryNwait:
My JB battery life has been similar to ICS. I focus on standby time, and my phone reports as little as 12% drain per day with just a few calls and texts.

My settings / strategy:

kill unnecessary running apps (maps, play store, music, etc)

ondemand governor, default clocking, voltages

google now off

bluetooth off

no data sync, no backups

wifi off when screen is off

mobile data off

nfc off

no notifications in google play

dark, static wallpaper

Using these settings I had similar drain in all of these ROMs: CM9, AOKP ICS, legolas93 JB, OTA JB, adamg JB and CM10 JB.

I did also enjoy ezekeel's deep idle in mathkid's ICS kernel. I think I got better standby time while the screen was off, and I know I had less drain while listening to music. (I tried to use deep idle in the stock CM9 kernel, but it was not stable, and I had lockups/reboots every time...)

I look forward to a stable IDLE2 by thalamus.

--== HurryNwait ==--
[Nexus S General] mrgilmorean:
My battery life was actually pretty good (at least matching ICS) since I installed the OTA but it took a nose dive today. Went from 94% to 10% in 7 hours. Screen on time of only ~2 hours. Mediaserver was at a constant 25%. I always thought that had something to do with streaming music from my Google account but everything I played today was stored locally (via 'Choose on-device music'). My phone just never seemed to go into idle.
[Nexus S General] Cephalus:
Was that with "Google Play Music?"

I hadn't used it previously (was it available prior to JB?), and noticed a couple of days ago when I tried deleting a track from local storage it threw up a complaint about my music now being synchronised with Google's servers - could it be that it spends most of its efforts uploading music from the 'phone up to "the cloud?" If so, this could certainly explain the battery drain.

Although I don't have a battery issue, it does make me think a little harder about removing Google Music and putting in a more "regular" music player like PlayerPro.
[Nexus S General] abccg:
How do you people do it?

I'm getting terrible battery life... tried 1 ICS rom (CM 9 RC2) and 2 JB roms (Jellybro and CM10 Euroskank), currently on CM10 and my battery was at about 75% when I went to sleep, I wake up and check it about 6 hours later, just on idle no wifi/gps/data running and its at 10%. How in the world does that happen?

I'm getting ready to go back to gingerbread CM 7 or MIUI my battery would probably go down 5-7% at most during that 6 hour period of idle time, not 60-65%!

Is this just me or what?
[Nexus S General] irishrally:
Why don't you try running stock OTA JB, rooted, with the stock kernel for a few days to get a good baseline? Maybe the custom ROMs you jumped straight to are causing battery drain issues. Maybe they aren't.
[Nexus S General] mrgilmorean:
Yeah, I only have Google Play Music (such a stupid name) on my phone. It can't be uploading music from my phone because the only way to upload music to one's Google account is through the desktop program as far as I know. Even if upload via the phone is possible, I don't have anything on the phone that wasn't cached from my Google account.

I decided to just flash Simple Kernel 1.3.2 because someone had decent battery life on it when combined with the stock ROM. So far the results have been sub-par (~5%/hr with little usage and a few minutes of music playing) but compared to what I had yesterday (~12%/hr), it's a huge improvement. I honestly don't know if it's really the kernel since it's supposed to be be the stock one with a few extra features like backlight notification and Voodoo support and no other tweaks. I also wiped the Dalvik cache before flashing the kernel so maybe I got rid of something that was leading to the battery drain? I don't know anymore. I love Jelly Bean but these battery issues are becoming really annoying.
[Nexus S General] tankmaster90:
So gonna do an update with my battery life on completely stock 4.1.1

I get decent battery life, but I know it could be better.

7% left with 13.5 hours of use, with only 2hrs and 11 min of screen on time. In that i did a lot of texting, and google+ messenger app. Some fb, instagram, and possible browsing internet, dont remember. Sync is always on for me, same with Google Now and wifi as well.

Here are some screenshots.

seems like my google+ app may be a battery hog, but i do use the messenger a bit.

As you can see my awake time is nearly double the screen on time. If I can get those two numbers closer to each other I'm sure I can pull better battery life. Also to note this is about what I was getting with ICS, I believe.

Think anything i can do to improve life??
[Nexus S General] torchie:
I just went back to stock kernel for a baseline since air kernel had bad life for me too. I can't get one hour screen time without hitting 50%. The phone is frustratingly warm in all usage. WiFi off. Bluetooth off. Wimax off. Auto brightness. Ondemand. I'm hoping this I'd a battery calibration issue. I don't know where people are getting these awesome times.
[Nexus S General] kalinusa:
Currently NO music playing, I never use Google music and I have unchecked the synchronization. No idea what is this!!!!

THIS MEDIA SERVICE KEEPS EATING 15-20% CPU!!! FOR NO REASON!!!
[Nexus S General] sdhanjal15:
Thats not media server. That's downloads.

Sent from my Nexus S
[Nexus S General] kalinusa:
Ok, my bad. There is nothing open!!! No browsers AT ALL!!! No idea, what is going on. On ICS I had a massive battery life. End of the day at 50% left.

Btw, does anybody on JB have keyboard stuttering problems. No matter what app I open primarily, Google Voice and WhatsApp, the keyboard is NOT BUTTER AT ALL!!! I do type decently fast but I mean COME ON!!! It gets horrible. Tried Go Keyboard same BS.

Any ideas my friends?
[Nexus S General] sdhanjal15:
Just force stop the downloads app. And there

Sent from my Nexus S
[Nexus S General] brenix:
I've noticed the media service was causing some drain and also noticed the mmc1_detect was always in the wake locks...I couldnt force close downloads, but after freezing the downloads and download service in titanium, both if these issues are gone and the battery drain appears to be a lot less...
[Nexus S General] alien_x:
1 day 21 hr 16 min after flashing JB factory image with mild usage of 3 hr 15 min screen on time.
[Nexus S General] donsh00tmesanta:
Anyone know when official jb is coming to nexus s 4g
[Nexus S General] Klisman:
Hi,

I had flashed the JB via OTA and I had a poor battery performance (vs ICS).

However, I flashed the Matrix Kernel and my battery performance was significantly improved.
[Nexus S General] lowtje:
Running JellyBro & Airkernel weekly
[Nexus S General] gm`:
Hi guys. My battery life is more than terrible . First when I got nexus with Ginger bread I had to plugged into a charger night time then went to ICS battery normally was dead late afternoon. And now with JB dies about 2- 3 pm lol in that time I will normally check news few websites etc.. plus about 2-3 hours phone calls - And that's what I think is killing my battery. Any suggestions?

Forgot to mention I am running ota stock.
[Nexus S General] lowtje:
Now with 2.5 hours of screen time
[Nexus S General] evcz:
Looks like that if I change wifi sleep policy from never to when connected battery gets drained way faster and most of the battery is used by maps....
[Nexus S General] darshakk:
I had the same problem. I changed to policy wifi seep policy to "never connect on sleep" and enabling GPS on-demand bases(+ disabled ocation services). This work-around worked for me for wifi+map battery drain. I'm back to normal with this temporary work-around.
[Nexus S General] spider623:
You are using i9020 Don't you guys in i9023 and stock jb I had a record of 2,5 days wifi on 1 hour screen on

Sent from my Nexus S
[Nexus S General] Warren_Orange:
Battery life is a lot better for me than ICS. I can get two days rather than one between charges.

This is on stock JB with Google Now disabled.
[Nexus S General] rrohanjs:
trolling us ? :p i tried every possible thing and couldnt get the same battery life

if i use my phone the same way, in jb i get 4 hrs screen time and ics 6 hrs .. thats a huge difference
[Nexus S General] sulfobus:
Similar problems

I'm also experiencing much more battery drain in JB compared to ICS 4.0.4. I've attached two sceendumps showing how on ICS one can clearly see the increased battery use when the screen is on--the battery use curve looks more like a staircase. On JB it's all downhill, and after 12 hours of fairly limited use, the battery is dead.

It doesn't seem related to time awake, the phone goes idle as it should. But there's something using battery while idle, and at a rate of about 5% per hour. With ICS, that drain was maybe 1% per hour.

I suspect the radio, as mentioned before (code.google.com/p/android/issues/detail?id=35856 (<10 posts --> no url, sorry))

ROM: Brainmaster JB 4.1.1.

Kernel: Tried stock, bedalus several versions (played around with IDLE-settings, but didn't really improve) and now recently the Air kernel.

Settings: Most sync turned off (only gmail, contacts and calendar left on), Google Now is off, Location reporting is off (incl. latitude), 3G data on but on Wifi most of the day
[Nexus S General] alien_x:
Yep same here but I didn't disable anything and still reached 1 day 21 hrs :)

I don't know how come you reached 6 hrs screen on time? I could only achieve 4 hrs with active use and browsing on 3g data :| I never tried using it without 3G or wifi may then I could.
[Nexus S General] rrohanjs:
with 3g i neva got 6hrs, but with wifi i get 6, if u see a thread in general i got over 7 with 2g lol
[Nexus S General] evcz:
Wifi sleep policy set to always on?
[Nexus S General] sulfobus:
Yep, but I tried only sleep, turning off, even airplane mode and I still see idle drain. Maybe there's something with Brainmaster's ROM. I'll try another one, thinking of Inverted.
[Nexus S General] Haizum74:
Ok, I tried turning off wi-fi and also gps. For a day I had the same battery drain but an overnight charge and its now settled down. Currently @ 69% discharge and on 7h 47 mins on battery. At work so cant upload a pic but wifi and gps off seems to have sorted it.
[Nexus S General] alien_x:
Ok! next time I'll try how much screen on time I am getting with 2G.
[Nexus S General] evcz:
Ah... If even airplane mode is draining I would try a clean install of cm10...
[Nexus S General] alexfiorani:
Strange battery drain

Other day when I went to bed I had more than 70% of my battery remaining. When I woke up, the phone was turned of. When I turned it on I noticed that it was with only 1% remaining (very strange, from 75% to 1% in less than 8 hours with wifi/3g/2g all turned off, and of course no one used the phone during this time). When I started to charge the phone I took a look at the battery stats, and they were very strange, the battery went from almost 75% to 30% instantly. Yes, instantly. Just take look at the screenshots I posted. The last time I used Wifi is when I went to bed. Notice that screen isn't on during this period, but the phone is "awake" several times.

The phone is worked/is working perfectly, I charge it once a day or once in a couple of days, but that incident (that has never happened again) made me very curious, anyone has already seen something like that?
[Nexus S General] sulfobus:
To me it looks like there was something funny with the battery level indicator before you went to sleep. Note how flat it is although you used it a little. I haven't seen just that, but many weird things with that curve.
[Nexus S General] C4SCA:
for me my battery life is 0 minutes right now!!

http://xdaforums.com/showthread.php?t=1824362

PLEASE HELP
[Nexus S General] alexfiorani:
Yes, after posting I was also noticing that. But either way, it is still an strange thing.
[Nexus S General] 309041291a:
I'll test it out tomorrow, but 50% - 34% gave me an hour and 17 minutes screen time with 8 reboots (I rebooted it). So looking good so far. We'll see tomorrow. I haven't even froze apps or used autostart/ad blocker yet.
[Nexus S General] toketin:
Hi, with JellyBelly rom for the first period the battery lasted also 2 days but then when i had installed Maps the battery drain became faster, now i'm using Slim Bean, it seems fine with badalus kernel
[Nexus S General] brenix:
My battery was horrible for a while... finally feel like I got my battery under control now..

Some steps I took:

1. Removed several apks I don't use prior to flashing ROM

2. Moved away from the deadline I/O scheduler to SIO

3. Used autostarts to disable a bunch of crap that always respawned itself... Also 100% stable now without any FCs

4. Set background processes to none in dev options
[Nexus S General] 309041291a:
I'll be pulling 5 hours screen time today. My usual on ICS. haven't idled a lot yet, so well see about that.

Nexus S. (GSM i9020a)

Paranoid (1.97a - 4.1.1)

Air Kernel (Week 171 - Voodoo)

Ondemmand (1000/200)

Deep Idle (On - Deadline)

Black Exodus (Inverted apps)
[Nexus S General] evil_fish:
update: To make it clearer, I have everything stock: stock JB+stock kernel

screen brightness : auto

NFC on (but never use it)

one more thing to mention is i turned "developer options" off always. because there is a bug in my phone about it. every time I reboot the phone, "stay awake" function always turned on by itself. I. have not found a cure yet. If anyone has a solution, can you please tell me?

Wired thing just happened. I managed to get super long battery life.

7+hours screen on

3G ON

3 EMAIL accounts sync

20%+ juice left

I am on all stock JB. Phone is more than 1 year old.
[Nexus S General] 309041291a:
Yeah that's my ICS battery life, which is lower than my GB battery life haha, pretty crazy!

A tip for getting good battery: Charge cycles. So many people never acknowledge it. Don't expect astounding battery right away! You need to HSE for phone for at least 3-5 days after installing a new ROM/Kernel.

Nexus S. (GSM i9020a)

Paranoid (1.97a - 4.1.1)

Air Kernel (Week 171 - Voodoo)

Ondemmand (1000/200)

Deep Idle (On - Deadline)

Black Exodus (Inverted apps)

---------- Post added at 02:05 PM ---------- Previous post was at 02:03 PM ----------

Nexus S. (GSM i9020a)

Paranoid (1.97a - 4.1.1)

Air Kernel (Week 171 - Voodoo)

Ondemmand (1000/200)

Deep Idle (On - Deadline)

Black Exodus (Inverted apps)
[Nexus S General] WeldFire:
My friend gets this on WeldFire crespo4g AOSP ROM :o
[Nexus S General] 309041291a:
The screen on time looks really low.

Nexus S. (GSM i9020a)

Paranoid (1.97a - 4.1.1)

Air Kernel (Week 171 - Voodoo)

Ondemmand (1000/200)

Deep Idle (On - Deadline)

Black Exodus (Inverted apps)
[Nexus S General] rrohanjs:
is it slimbean ? and it background processes are zero then would whatsapp work ? or applications which need push service

settings of kernel ?
[Nexus S General] evil_fish:
i just updated my post. So I copy- paste the text for your question. I hope you don't mind.

To make it clearer, I have everything stock: stock JB+stock kernel+stock governor + stock every other settings.

For example :

screen brightness : auto

NFC on (but never use it)

one more thing to mention is i turned "developer options" off always. because there is a bug in my phone about it. Every time I reboot the phone, "stay awake" function always turned on by itself. I have not found a cure yet. If anyone has a solution, can you please tell me?

---------- Post added at 10:14 AM ---------- Previous post was at 10:07 AM ----------

Thank you very much for your tip!
[Nexus S General] HurryNwait:
I am always looking for better battery standby time, but I haven't tried this. What are the noticeable repercussions of this setting?

(I'm doing a test right now and cannot simply try this myself...)

--== HurryNwait ==--
[Nexus S General] 309041291a:
I believe that pretty much disabled multitasking (I think*). I'd set it to 4. The only thing is that setting never sticks on boot so you have to keep going into your settings and enabling it.

Nexus S. (GSM i9020a)

Paranoid (1.97a - 4.1.1)

Air Kernel (Week 171 - Voodoo)

SmartassV2 (800/200)

Deep Idle (On - Deadline)

Black Exodus (Inverted apps)
[Nexus S General] irishrally:
QFT