yashsingh1/xdaforums huggingface dataset:
[Nexus S General] brenix:
The only repercussions I've noticed is some apps launch child processes don't function as expected.. But this occurs very rarely for me.. For example I use JustPlayer to stream music and when it tries to open another process to begin caching the next song, it cant..

The main reason I set it to this is to force the phone not to keep anything running so it can enter an idle state more often..I have not noticed any performance degradation from setting this option either..
[Nexus S General] sulfobus:
I can't speak for Nexus S with this setting, but on my tablet it caused google seach to crash and launcher had to redraw all the time.
[Nexus S General] javi.heiwa:
Disable Exchange account sync

Hi all,

I was having the same problem with the battery life. 7 hours per day, 8 hours top. Always letting me down when I most needed the phone.

I deactivated the sync of the Exchange account and left it running for a day. The battery improved dramatically. I am back to normal now.

I have re-enabled the sync and it seems to be working fine and I am getting good battery life as well... Only 30% has gone in the last 7 hours and it syncing perfectly.

Hope this helps the rest that are having similar issues.

Rgds,

Heiwa
[Nexus S General] torchie:
Its been two hours and I'm on 67%. My exchange account is set to sync only email every 30 min. I need my exchange account. WiFi off. Goog now off. Bluetooth off. Jesus Christ.

Edit: I think I found the problem. It says the last time it synced exchange was 2 pm and its now 5. Since then exchange has done 230 wakeups.

Conclusion: android's exchange support has been garbage for 2 years.
[Nexus S General] rrohanjs:
androixide 3.10 working perfectly with matrix 22.5 cfs ondemand deadline

down to 50 % 12hrs, 2 hrs screen time and 1hr voice call

any better configuration for kernel for battery life ?
[Nexus S General] rrohanjs:
anyone getting 5 hours screen time minimum ?
[Nexus S General] ajskhan:
Any thoughts on extending this battery life? On cm10, matrix.
[Nexus S General] sysadmn:
Install BetterBatteryStats, read the FAQ, learn to take an idle dump, and post the results in the BBS thread.
[Nexus S General] 309041291a:
More like maximum.

Nexus S. (GSM i9020a)

Paranoid (1.97a - 4.1.1)

Air Kernel (Week 182 - Voodoo)

SmartassV2 (1000/200)

Deep Idle (On - Deadline)

Black Exodus (Inverted apps)
[Nexus S General] Imppy:
309 could you post up your CPU script and your settings?
[Nexus S General] 309041291a:
I'll do you one better.

On demand:

Smartassv2:

Nexus S. (GSM i9020a)

Paranoid (1.97a - 4.1.1)

Air Kernel (Week 182 - Voodoo)

SmartassV2 (1000/200)

Deep Idle (On - Deadline)

Black Exodus (Inverted apps)
[Nexus S General] rrohanjs:
got 4hrs 48mins screen time with phone running for 23.5 hours :) along with 2 hours of voice calls
[Nexus S General] Rogdin:
Guys, I haven't read all thread but let me contribute how I solved the issue in my case (maybe you all already know).

I did the following: Settings -> Developer options -> check for Don't keep activities

and set No background processes for the next item.

I did not discover yet how this affects on the phone work but now it doesn't die in 15 hours.
[Nexus S General] madd0g:
Any you turned your beloved smart phone into a dumb phone.
[Nexus S General] Imppy:
How?
[Nexus S General] chronophase1:
Isn't that how Apple 3rd party apps behave? Either way, there should be no reason you should absolutely have to cripple your phone to extend the length between charges. Some people are lucky(like myself), to have access to an outlet at work when need be. I would just love to know why the NS just gets destroyed on 4.1. Mine was never good to begin with, but it seems others are suffering a lot as well.
[Nexus S General] 309041291a:
By using the settings I screen shotted.

Auto starts, Inverted apps, and all that stuff helps too.

Nexus S. (GSM i9020a)

Paranoid (1.97a - 4.1.1)

Air Kernel (Week 182 - Voodoo)

SmartassV2 (1000/200)

Deep Idle (On - Deadline)

Black Exodus (Inverted apps)
[Nexus S General] Imppy:
Are you using bedalus smartass2 default settings?
[Nexus S General] rrohanjs:
matrix 22.5 cfs ondemand deadline, after few cycles of charging and then charge via usb, i see that its slower but makes a diference

---------- Post added at 11:16 AM ---------- Previous post was at 11:15 AM ----------

i dint try your settings yet, will do when i'm back home
[Nexus S General] Drizzy xS:
Just wondering..is it possible to get good battery life like 4 hrs plus screen on time while having the brightness at something like 50 percent? Because I mean I like good battery as much as the next guy but at minimum brightness everything looks like **** and on half plus everything just looks so clear and dynamic? But every time I move it up the slightest bit it just seems to absolutely destroy the battery within hours.
[Nexus S General] mmmzq:
only lasts 4 hours when heavy use:crying:

a little bit longer when maximum cpu frequency is set to 800
[Nexus S General] rrohanjs:
phone runs well on 800 ? which rom ?
[Nexus S General] chronophase1:
Yeah. Screen will dominate your battery. Have you tried 25%? I found that was my happy medium which granted me decent life when I used mine. I've pulled almost 4 hours screen on with it. I also used inverted browser pages when I was reading articles to help.
[Nexus S General] vinamilk:
The more continue of using phone, the better battery you'll get !
[Nexus S General] chronophase1:
Wat? I really hope you aren't serious. If you're talking about calibration, the NS uses a different type of way to gauge charge level. As in whatever the battery reports is what it is.
[Nexus S General] vinamilk:
Yep, you can use and take experience yourself. Mine be better after at least 3-4 days of use.

First day after flashing new Rom battery drains very fast even you get it in standby condition.
[Nexus S General] chronophase1:
I'm pretty sure its due to the fact you're using the phone less since you need to set everything up. My battery life has never changed from day one of flashing a ROM since I do my entire sync/home screen setup while on the charger. My GNex granted me almost 4 hours of screen on while unplugged for almost 24 hours the day I set it up out the box. I call BS on this supposed calibration because my Nexus S had crap battery no matter what I did. Even after using the same ROM for a month, the life stayed the exact same if my usage pattern didn't change. This holds as much water as wiping battery stats.
[Nexus S General] orky87:
I'm not taking side here but... I have also noticed an improvement after a few charges after flashing a ROM.

My usage routine is pretty much the same, at most consumption I browse the web using Opera Mini and a bit of music play at night while in airplane mode.

Is it possible that there is some sort of adaptation feature in the power management code/module, that's if there is one of any kind?

Then if I ever run dry on power to the very last drop I notice that after the first couple of charges my phone runs out of power quicker, up until a few recharges then it last longer again.

This may sound stupid from a technical point of view if you know how it all really works but this is indeed an effect that I have noticed even on my old Desire GSM.

EDIT: Battery built-in circuit has nothing to do with usage regulation does it?
[Nexus S General] chronophase1:
It's a good debate, but I would like some type of evidence of these said claims. I'm not trying to be a downer, but I've seen tons of snake oil on this site(I've tried a few in the past) about people claiming all these amazing things but was nothing but placebo or debunked by others. It would be a fun little experiment IMO :).
[Nexus S General] 309041291a:
I've noticed it too. When I don't let my phone die (100%-0%) once a week my battery gets worse in time.

Nexus S. (GSM i9020a)

Paranoid (1.97a - 4.1.1)

Air Kernel (Week 182 - Voodoo)

SmartassV2 (1000/200)

Deep Idle (On - Deadline)

Black Exodus (Inverted apps)
[Nexus S General] lowtje:
Androxide 3.1 + airkernel #191
[Nexus S General] donnieace:
My battery life has always stayed the same. It always helps to have a spare or two.
[Nexus S General] t3ej4y:
Media scanner keeps waking my phone up, once it even stayed awake for an hour keeping it from deep sleeping...anyone has any idea how to fix this? On cm10 nightly, already fixed permissions, wiped cache, cleared media storage data etc.
[Nexus S General] rrohanjs:
dint use the phone much as was out with my gf all day :p

but was amazed how long my phone lasted and still its not only stand by time i got 2hrs 30 mins screen time too and 2hrs 30mins of voice calls

kernel - marmite 4.2 smartassv2/deadline
[Nexus S General] Morpheuspt:
I was on the kang builds, the battery life was absolutely killing me.

I changed to the cyanogen builds, did a wipe, and now its' a lot better!
[Nexus S General] sdhanjal15:
Try autostarts they help a lot
[Nexus S General] lurtis:
this is funny cuz i was on the cm10 nightlys and was getting wake locks like crazy without installing anything but gapps. switched to jellybro nightlys and it correctly sleeps. no wake locks at all. hah. though you might be on the crespo version, im with a crespo4g (sprint)
[Nexus S General] almizilero:
SlimBean gives me two days uf normal usage with some safety at the end of the second day. Best I could find as of now.
[Nexus S General] MajorKC:
Before rooting I was getting about 8 hours of battery life doing moderate surfing and texting on my NS4G, This is my results so far after rooting to RasBeanJelly Rom. But its nice to keep a couple spare batteries on hand :). I was able to get 1d 6hrs and some more with 15% battery left on my phone

*was going to post a img but i cannot at this time :(*
[Nexus S General] vraciu4you:
i get the same battery life with miui jb and air kernel
[Nexus S General] nstant:
Haven't used my phone a lot to so I'm getting a bit more batt life
[Nexus S General] Zieghart:
I'm using ParanoidAndroid 1.992 (Epsilon Kang) with Marmite Kernel 4.3.2, Supercharged as well. My battery life increased so much and I never had heating problems even when playing HD games on my Nexus S. My claim can't back-up what my Nexus S is feeling right now but I'll give screenshots once I've lasted a whole day at the office tomorrow.

About to flash Marmite 4.4 now.
[Nexus S General] slysurfer:
Battery Performance of NS and JB 4.1.1

Hi Mate, I have noticed the battery performance of JB is better than ICS. Sometimes I can get 2 days out of the NS, which is great. Making calls is the killer :) I am using CMREX v4 currently - Great Rom.
[Nexus S General] sdhanjal15:
Was it really necessary to quote that whole thing?
[Nexus S General] bmszabo:
Funny thing; after about a month on JB (stock, unrooted) and complaining about battery drain battery use has improved significantly, right now about 3-4%/hr, without any change in my phone use.. No idea how, but blessed changes!
[Nexus S General] apatal:
If you have Google Maps enabled and updated, then that might explain it. A developer informed me that the new version of Google Maps has fixed the battery drain issue that it's been causing in JB. Not sure how significant is the improvement though. :)

Sent from my NexuS
[Nexus S General] sdhanjal15:
Back on ics enjoying 5 hours of screen time
[Nexus S General] rrohanjs:
androxide with mermite 4.2 deadline/smartassv2 gets 5 hours screen time on 2g or wifi
[Nexus S General] lowtje:
Best stats so far :)
[Nexus S General] vinamilk:
By choosing correct kernel you can get maximum battery life. I highly recommend Air kernel.

I'm on combo Blackbean v2 or Codename 3.4.1 with Air kernel, Google now off, Sync off and battery life is excellent ! Phone runs smoothly and still cool, just a lite of warm.
[Nexus S General] rrohanjs:
cant see your pics
[Nexus S General] lowtje:
Xda app is acting weird.

---------- Post added at 09:47 AM ---------- Previous post was at 09:10 AM ----------
[Nexus S General] vinamilk:
Please turn your phone's language back to English before screen shot !
[Nexus S General] 309041291a:
Why? It isn't hard to understand a graph and a screen time pic you've seen 1,000,000,000 times.

Nexus S. (GSM i9020a)

Paranoid Epsilon 1.2 (1.992 - 4.1.1)

Air Kernel (Weekly 201 - Voodoo)

Smartassv2 (1000/200)

Deep Idle (On - Noop)

BLX (98 - Inverted Apps)

Black Exodus (Undervolted)
[Nexus S General] lowtje:
*facepalming*
[Nexus S General] rrohanjs:
still 4hrs 30 mins screen time and around that is the average battery life on jb ? .. anybody found a good combination ?
[Nexus S General] gonzo320:
Pretty bad.

Stock JB 4.1.1, JRO0R, NS4G, stock kernel. Steady decline in battery overnight, which didn't used to happen (as bad) with the JB roms compiled from source on the dev thread. I went to sleep and the battery was about 80%, woke up and it was around 36%. Any suggestions?
[Nexus S General] Drizzy xS:
What Rom you getting that on?
[Nexus S General] Killasmoke:
Turn off WiFi when you ain't using it & close out all resent apps it looks like your device keeps waking up when it suppose to be sleeping
[Nexus S General] wolf230:
Please can you share ROM, Kernel and baseband?

Thanks
[Nexus S General] chrishman:
I was getting severe battery drain after JB OTA install. Seemed to be a Google Play Magazines app was the culprit. Did a hard reset, and only hooked back up my gmail account. Havent redownloaded other apps yet, wanted to see what battery was like w/ a pure reset. Turned off location services and have brightness turned almost all the way down. 1d 14h 40m and im still at 42%. Have wifi on at home and overnight. Really impressive and happy so far. Will be interested to see how its impacted when my apps go back on, but want to see what the full run time of clean install battery is before I reinstall.
[Nexus S General] dartmouthy:
Codename Android 3.5 - http://xdaforums.com/showthread.php?t=1839249

AirKernel 3.0.42 - http://xdaforums.com/showthread.php?t=1469842

OnDemandX

SIO

Light use, 3.5 hours of screen time when all is said and done. Tweaked Voodoo Screen Colors and Light sensor levels seem to help a great deal, especially at the low-light indoor end of the spectrum. Having the screen at 4 instead of 20 when it is dim not only improves legibility but also has a big impact on run-time! Hopefully I haven't bombed this post with pics but they ARE worth 1000 words after all :)

Overall, I'm very impressed with Codename Android and the AirKernel combo - very stable, quick, and great battery life (considering this is an old phone with the old ass original battery)

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[Nexus S General] p.pavljasevic:
I have been on CM10 V1.25 by kalimocho and its realy good. My battery is almost at gingerbread level.

All location stuff is on and everything like auto rotate and brightness is also on. I just set the governor to interactive in stead off ondemand. Like it a bit better.

It is really stable as well. Not a single fc.

Highly recommended.
[Nexus S General] nwbee:
hi, i just want to ask how long your nexus s can play music on once charge?
[Nexus S General] p.pavljasevic:
Two weeks ago i travelled from minesota to amsterdam and listened to music the whole flight (airplane mode on) just about 8 hours and still had 40% left but that was on the older version and this one is even better.
[Nexus S General] gonzo320:
NS4G stock JB OTA.

I flashed the .zip file that andrewddickey uploaded in the dev thread (which are based on the exact files that I uploaded a few days ago), and I have been getting better battery life. I must be placebo or something because the only difference was the method of installation. But if it works it works. Did a full wipe, dalvik, and cache partition, then flashed the .zip.

Granted, this is only 3.5 hours of battery usage, but I have been making phone calls (about an hour), playing music (about 1.5 hours) and using my GPS navigation (about 1.5 hours). GPS was on the whole time, while making calls/music during portions of it. I also forgot to turn off wifi even though it wasn't being used. These are all rough estimations, please don't over-analyze.

My signal has been MUCH better. I wasn't able to tether at the work place AT ALL before this update (I mean zero kbs). Now I get a consistent .3mbs connection while tethering to the laptop, in the exact same spot. That's not bad for just browsing the internet.

---------- Post added at 07:14 PM ---------- Previous post was at 07:09 PM ----------

Anything on here that doesn't work?
[Nexus S General] nd4spdbh:
i could easily pull two days of use out of the nexus s with ics and air kernel..

now im lucky to be able to last a day on JB with just about any combo of JB rom and kernel.
[Nexus S General] nwbee:
same here, miss deep sleep on jellybean
[Nexus S General] 309041291a:
Overview.

Graph.

Screen.

Got a SOD while ending a phone call so I had to pull the battery. When I booted 2 hours of my phones usage had disappeared from the graph. So really, I used my phone for a little over 12 hours and my screen time was 5 hours and 15-25 minutes.

5 hours has been hit on JB lol. Next step: Get 7 hours screen time like ICS....

I was on 2G and I used 3G for 20 minutes (YouTube). Settings below :).

Nexus S. (GSM i9020a)

Paranoid Android (2.0 - 4.1.1)

Marmite Kernel (4.5 - Bedalus)

Ondemmand (Screen On) (800/100)

SmartassV2 (Screen Off) (400/100)

Deep Idle (N/A - Deadline)

BLX (98 - Inverted Apps)

Black Exodus (Stock Voltage)
[Nexus S General] rrohanjs:
@309041291a thats awesome, im with rasbelly now, i get 4hrs of screen time but with about 4 hrs of voice calls, so if i cut the voice calls i guess ill touch 5 as well :D
[Nexus S General] p.pavljasevic:
The one thing i found so far is deep idle toggle in the menu doesnt work. But no negative effect from that. Battery time is amazing.
[Nexus S General] al_madd:
ROM: Chocolate 13.9 AOSP knzo

Kernel: Thalamus 27.8

This is my secondary phone..just use it for browsing/forum and playing games..
[Nexus S General] lowtje:
Complete stock since yesterday. Still smooth :)
[Nexus S General] 309041291a:
Even better than the last time.

Am I slowly retaining my ICS battery? This is awesomwness.

Nexus S. (GSM i9020a)

Paranoid Android (2.0 - 4.1.1)

Marmite Kernel (4.5 - Bedalus)

Ondemmand (Screen On) (800/100)

SmartassV2 (Screen Off) (400/100)

Deep Idle (N/A - Deadline)

BLX (98 - Inverted Apps)

Black Exodus (Stock Voltage)
[Nexus S General] Kosmoskatten:
ROM: Rasbeanjelly

Kernel: Marmite 4.5

Governor: Ondemand

Light usage, 3G on

This combo works really nice on my phone. Haven't had this good battery in a long time, runs smooth as butter and no FC's or reboots :D
[Nexus S General] nd4spdbh:
do you guys have google now enabled?

i turned it off and battery life went from using 20% over night just sitting there no use... down to 6%. :D
[Nexus S General] bmwjnky:
I got 9hrs and 55min on my stock phone yesterday before I got the 5% warning. Only usage was some texts, checked email and used google music for about 50min while driving to a friends house. I don't get the best signal but just under 10 hours before needing to be on a charger with light use is not cutting it for me. I'm running the current OEM JB for a NS4G, I also have no widgets but do have Google Now running but only for weather, traffic and SF Giants scores.
[Nexus S General] nd4spdbh:
like stated google now KILLS battery.
[Nexus S General] vis80k:
strange.

I wanted to experience google now, so left even the location reporting option checked, but I got only an additional 1~2% more compared to google now and location settings off.

so far as I can say, google now offers more than what it takes away. ;)

as I've read some where, it will only get better.
[Nexus S General] rrohanjs:
io scheduler ? - deadline ?

---------- Post added at 12:34 PM ---------- Previous post was at 11:58 AM ----------

how do you set the screen off governer ?
[Nexus S General] 309041291a:
SetCPU.

Nexus S. (GSM i9020a)

Paranoid Android (2.0 - 4.1.1)

Marmite Kernel (4.5 - Bedalus)

Ondemmand (Screen On) (800/100)

SmartassV2 (Screen Off) (400/100)

Deep Idle (N/A - Deadline)

BLX (98 - Inverted Apps)

Black Exodus (Stock Voltage)
[Nexus S General] Kosmoskatten:
Deadline.
[Nexus S General] rajiga:
Battery Life

I am a Moderate user. Check my Battery usage in the screenshot attached.

CM10 - 20120915 with all the Default Settings.
[Nexus S General] C4SCA:
stock via fastboot 4 days ago

Those 35 min of mexia server are listening to music. I played logo quiz for 35 min too. 2h using airdroid. And some texts plus one call of 10 min. Never had such good battery... my brightness was on auto or half the way
[Nexus S General] C4SCA:
Today my battery was even better. I upsated to jro0L so lets in the next few days if it gets any better

sent from my Nyan NeXus S
[Nexus S General] bmszabo:
Funny thing; I am also having issues with battery life since upgrade to JB. Last time I had the idea that my Hotmail pop account (in e-mail) was misbehaving, syncing problems, slow refresh e-mail page etc.. So, yesterday I have removed hotmail e-mail account (leaving my company exchange account untouched) and on the flash, phone became faster, snappier, and battery use reduced back to pre-JB values..

Can be that Hotmail pop settings in e-mail are (one of the) culprits of extreme battery use?
[Nexus S General] rrohanjs:
mostly yes, it hardly takes anything to keep jb roms from sleeping, use betterbatterystats app, its free on xda you will easily find the culprit there.
[Nexus S General] teancum144:
Exchanges Services Draining Battery after Jelly Bean Upgrade

This bug has been reported to the Android bug reporting site. I can't post links yet, so to cast your vote to have this fixed asap, please do the following:

1) Google "Issue 37437 - android"

2) Click on the "star" icon to record your vote

Optionally, you can post any helpful details around this bug.
[Nexus S General] 309041291a:
I updated my ROM and noticed my battery starting to suck again. So I decided to go ahead and try Juice Defender. My phone didn't even have a full charge, it was at 88%~ and it is going to pull 5 hours screen time in 12~ hours. Juice Defender works wonders O.O....

Nexus S (GSM i9020a)

Paranoid Android (2.1.3 - 4.1.1)

Marmite Kernel (4.7 - Bedalus)

Ondemmand (Screen On) (800/100)

Ondemmand (Screen Off) (400/100)

Deep Idle (N/A - Deadline)

BLX (98 - Inverted Apps)

Black Exodus (Stock Voltage)
[Nexus S General] pmdisawesome:
How is the ICS battery? Is it better? I got this phone for a very cheap price but my primary phone is the Arc, and I just had it 1 month ago so I know nothing about ICS Battery.

If it's better then I'm going back to ICS.

Thanks in advance
[Nexus S General] lowtje:
What are you're settings?
[Nexus S General] C4SCA:
New update, 1week after flashing via fastboot stock jb. I still think its more stable, fast and battery life friendly updating via fastboot

Media server time = listening music

sent from my Nyan NeXus S

"You're either NEXUS or against us!"
[Nexus S General] opus_mh:
lwarsi well

I have been using the euroskank build since day one and kept the govner set at 1200max 200min until the OTA came out a few days back. My battery life has significantly improved. Im using an 1820mAh battery on the root kernel i'm only a moderate user less than 2hrs talk time a day, I i was averaging 18hrs a charge and 7 continuous hours or Netflix streaming. Stock unrooted has been well over 24 hours, my last charge was 1day 17 hours with 4 hours talk time, and 1.5 hours on Netflix and YouTube. I have yet to do a continuous Netflix battery drain on the OTA release yet. I am running i lean machine no maps, no widgets, no Facebook....nothing to run in the background. my available RAM stays around 175 -185mb that way, rooted could get to 205 free on jelly bean and the NS4G will cook overclocked with that much free memory on JB.