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How to save battery on nexus S

Hello there..
i just rooted my nexus S 9020T..i flashed CyanogenMod-7-08312011-NIGHTLY-NS,Build number GRJ90,Android version 2.3.5
my problem is the battery keep draining faster..
fully charged at 7.00AM..10% at 4.00PM
i using Juice defender ultimate (said longer my battery 1.5x)
please help me...

Juice defender is a waste IMO. You could try an undervolted kernel like matr1x or Trinity.
Sent from my Nexus S 4G using xda premium

I suggest teuv kernel by Trinity, best battery life I've seen.
The nexus is a battery hog, especially with all kinds of background apps people have like whatsapp and facebook. If you get Trinity, follow instructions and you wont news any outside monitoring app as the kernel is very good about ram and CPU allotment
sent from my nexus s on a kang from simms

Nexus S is hardly a battery hog.
al_madd said:
Hello there..
i just rooted my nexus S 9020T..i flashed CyanogenMod-7-08312011-NIGHTLY-NS,Build number GRJ90,Android version 2.3.5
my problem is the battery keep draining faster..
fully charged at 7.00AM..10% at 4.00PM
i using Juice defender ultimate (said longer my battery 1.5x)
please help me...
Click to expand...
Click to collapse
There are numerous ways to increase battery life. Firstly, you(Android) do not need battery apps and task managers/killers.
Secondly, try this.

Rem3Dy said:
Juice defender is a waste IMO. You could try an undervolted kernel like matr1x or Trinity.
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
how if i want to change my kernel??
flash new ROM??

al_madd said:
how if i want to change my kernel??
flash new ROM??
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1067813
try this for GSM
Sent from my Nexus S 4G via XDA Premium

yes...i just can see the link for download for the kernels..
but i cant guides how to change kernels..

al_madd said:
yes...i just can see the link for download for the kernels..
but i cant guides how to change kernels..
Click to expand...
Click to collapse
Flash through recovery. Make a backup first. Choose the correct kernel for your device. Disclaimer: I'm not responsible for your flashing mistakes.
Sent from my Nexus S 4G via XDA Premium

any other tips how to save battery longer??

Any further tips after a new kernel and rom would be cutting on the use of the phone and are therefore meh. I want to use the phone, not use it less.

So Trinity is better than Netarchy???, what about Pete #5 which is built in Formels MIUI, so far this is the best Rom I have tried on my NS, stable and fast+good battery compared to the others, also I have my phone OC at 1.2G via Setcpu.

Set wifi sleep policy to never.
Turn off auto brightness
Turn off sync and just refresh your gmail manually when you need to and refresh your contacts from time to time. You still get app updates from the market with sync turned off.
Go through all your apps that update regularly (facespace, twitter etc.) and reduce the sync frequency to something that is acceptable for you. I don't need my twitter updating every 15 minutes and can just manually sync whenever I want.
EDIT: Turn off NFC.
... and buy one or two of these: http://www.amazon.com/Samsung-1440m...TUEW/ref=sr_1_1?ie=UTF8&qid=1316132022&sr=8-1
Make sure to condition them properly - it really makes a difference.

Wifi Sleep Policy to never fixed alot of my battery issues

Turning off NFC will do nothing as NFC does only consume power (like GPS) when used.

Uni7 said:
Wifi Sleep Policy to never fixed alot of my battery issues
Click to expand...
Click to collapse
Issue #1
Sent from my Nexus S 4G using xda premium

PROTIP: Stop using the phone so much. None of these tips are going to do squat if you're using the screen and wifi/3G all day.
Trust me on this. I easily get 12+ hours of use with battery to spare (usually around 30-40%) with the following usage:
NOTE: Matr1x Kernel with the stock undervolting settings, and TSM Pool Party ROM running on top.
The screen is on (a little over 1/4 brightness) with wifi/3g blasting, surfing bright white web pages for about 2-3 hours total. I may play 30 minutes of Furious Neornithes D), screw around on the market for a few minutes, check FB updates, etc. I also probably take/make about 10 short phone calls and send/receive about 50 texts. The remaining time, the phone sits in standby.
Not bad, considering the phone is beefier than most home computers from 10 years ago. Also worth noting: The battery scale isn't the most accurate thing in the world. Battery percentage drops off sharply up until about 60%, where it seems to level off.

So what's the best kernel to use???, Trinity or Trinity UV?, Netarchy?, Matrix?, is not only about the battery but also stability, doesn't matter if u can make ur phone last forever if u can't use BT while browsing cause the thing crashes so u either have to use one or the other.

As this is the save battery thread, there's only one answer: lowest voltage trinity kernel.

method2madness said:
PROTIP: Stop using the phone so much. None of these tips are going to do squat if you're using the screen and wifi/3G all day.
Trust me on this. I easily get 12+ hours of use with battery to spare (usually around 30-40%) with the following usage:
NOTE: Matr1x Kernel with the stock undervolting settings, and TSM Pool Party ROM running on top.
The screen is on (a little over 1/4 brightness) with wifi/3g blasting, surfing bright white web pages for about 2-3 hours total. I may play 30 minutes of Furious Neornithes D), screw around on the market for a few minutes, check FB updates, etc. I also probably take/make about 10 short phone calls and send/receive about 50 texts. The remaining time, the phone sits in standby.
Not bad, considering the phone is beefier than most home computers from 10 years ago. Also worth noting: The battery scale isn't the most accurate thing in the world. Battery percentage drops off sharply up until about 60%, where it seems to level off.
Click to expand...
Click to collapse
do you use juice defender???

al_madd said:
do you use juice defender???
Click to expand...
Click to collapse
Don't.
Sent from my Nexus S 4G via XDA Premium

battery drain

hey guys....my battery drain more fast than i can write.....do u have any solution or idea about?

Would help if you told us the ROM your using, kernel, firmware and what Accounts you have on sync.

arhd rom has really good battery performance.
Sent from my HTC Sensation using xda premium

k0zmic said:
Would help if you told us the ROM your using, kernel, firmware and what Accounts you have on sync.
Click to expand...
Click to collapse
hey guys.
right now i am using ordroid 1.7.4. but i tried many roms...kernel anthrax 1.5 firmware the last 3.32 and acounts facebook.teeter mail and skype....
thank u guys

tikis45 said:
hey guys.
right now i am using ordroid 1.7.4. but i tried many roms...kernel anthrax 1.5 firmware the last 3.32 and acounts facebook.teeter mail and skype....
thank u guys
Click to expand...
Click to collapse
You sure its not just your battery?
Sent from my HTC Sensation XE with Beats Audio using xda premium

Try the anker 1900mah battery from amazon, it made a huge difference to my battery life. I get easily a full day with everything on.
Sent from my HTC Sensation Z710e using XDA

jab74101 said:
You sure its not just your battery?
Sent from my HTC Sensation XE with Beats Audio using xda premium
Click to expand...
Click to collapse
i dont know...this is that i am loking fot to find out.....

Arclin said:
Try the anker 1900mah battery from amazon, it made a huge difference to my battery life. I get easily a full day with everything on.
Sent from my HTC Sensation Z710e using XDA
Click to expand...
Click to collapse
i was thinking about looks like a goos solution.but if u cant use this phone at least for 1 day is just a uselless....

Most important is how you use it to drain so fast. Do you have mobile, wifi or GPS on. Do you play lot of games, listening music. Personally to increase battery life I have onoff widgets on my home screen and turn them on only when I need them. You can set lower brightness as well. Why don't you install some battery monitor widget to see battery draining.

nmnikolov said:
Most important is how you use it to drain so fast. Do you have mobile, wifi or GPS on. Do you play lot of games, listening music. Personally to increase battery life I have onoff widgets on my home screen and turn them on only when I need them. You can set lower brightness as well. Why don't you install some battery monitor widget to see battery draining.
Click to expand...
Click to collapse
no mobile.no games..nothing games inside.just wifi on.brightness is 60%.use modarate..just internet and facebook.just today morning/.out of charger 8.30.use 30 min internet facebook emails a lil bit browsing on wifi.3 4 calls....and now 10.30 the curentwidget saying 72%...is it normal that?

From the Android Revolution HD thread.
Q 1: After flashing Android Revolution HD my battery drains much faster. What can I do?
A: Please charge your battery to 100%, boot your device in ClockworkMod Recovery and go to Advanced ---> Wipe Battery Stats. Also see Question 7.
Also please read this ---> [GUIDE] Enlarge your battery life : an attempt to fix the battery drain
And this ---> [How to] Brilliant Battery Life 100% working!
For more details about wiping battery stats please read this
Q 7: My CPU load is all the time nearly 100% and in most part it's used by system. What is the reason of that high CPU usage and how can I fix it?
A: Delete your htcsense.com account. It takes A LOT of your battery and CPU usage.

PurePlaguez said:
From the Android Revolution HD thread.
Q 1: After flashing Android Revolution HD my battery drains much faster. What can I do?
A: Please charge your battery to 100%, boot your device in ClockworkMod Recovery and go to Advanced ---> Wipe Battery Stats. Also see Question 7.
Also please read this ---> [GUIDE] Enlarge your battery life : an attempt to fix the battery drain
And this ---> [How to] Brilliant Battery Life 100% working!
For more details about wiping battery stats please read this
Q 7: My CPU load is all the time nearly 100% and in most part it's used by system. What is the reason of that high CPU usage and how can I fix it?
A: Delete your htcsense.com account. It takes A LOT of your battery and CPU usage.
Click to expand...
Click to collapse
all above done....nothing changes.....calibrate many times the battery..delele bin file...htc account no....still the same guys.....cpu is not all the times 100%.working normal....how can i check what apps working backround?and to close afew of them?????

PurePlaguez said:
From the Android Revolution HD thread.
Q 1: After flashing Android Revolution HD my battery drains much faster. What can I do?
A: Please charge your battery to 100%, boot your device in ClockworkMod Recovery and go to Advanced ---> Wipe Battery Stats. Also see Question 7.
Also please read this ---> [GUIDE] Enlarge your battery life : an attempt to fix the battery drain
And this ---> [How to] Brilliant Battery Life 100% working!
For more details about wiping battery stats please read this
Q 7: My CPU load is all the time nearly 100% and in most part it's used by system. What is the reason of that high CPU usage and how can I fix it?
A: Delete your htcsense.com account. It takes A LOT of your battery and CPU usage.
Click to expand...
Click to collapse
Wiping battery stats to improve battery life is a myth.
Sent from my HTC Sensation XE with Beats Audio using XDA

High battery drain using JB ROM

Hai..
Im just switching to AOSP JB by AdamG Version 0.1.4.
No mod, stock AdamG ROM kernel, full wipe, just install few app such as whatsapp, cpuspy, medscape etc...this is not my daily phone..
the problem is very high battery drain..
in 4 hours battery drop from full charged to 69%..
Here the screenshot and BBS stats...Can somebody help me please to find the culprit??

Is Google Now on? it takes a ton of battery.

FirePoncho86 said:
Is <a class="inlineAdmedialink" href="#">Google</a> Now on? it takes a ton of battery.
Click to expand...
Click to collapse
How do I check whether Google now is enable??
How do I turn it off??
aku search for it..no found it...I thought AdamG already remove from his ROM...

I have the same problem which made me go back to cm9.
Sent from Failtrix.

al_madd said:
Hai..
Im just switching to AOSP JB by AdamG Version 0.1.4.
No mod, stock AdamG ROM kernel, full wipe, just install few app such as whatsapp, cpuspy, medscape etc...this is not my daily phone..
the problem is very high battery drain..
in 4 hours battery drop from full charged to 69%..
Here the screenshot and BBS stats...Can somebody help me please to find the culprit??
Click to expand...
Click to collapse
You need to install a better app. The Android built in power usage thing is about as much use as a chocolate teapot, and better battery stats isn't much better.
Try system panel from Play, you will need the paid version from here. Put it in monitoring mode and leave it for a few hours.
You will be able to see what is chewing CPU then, and that is invariably the thing that is causing the drain. It very rarely fails to assist me with diagnosis of an obscure drain issue.

Ok..just bought system panel app.will update about this crazy battery drain later..
Thanks thalamus..
Sent from my GT-I9100 using Tapatalk 2

al_madd said:
Ok..just bought system panel app.will update about this crazy battery drain later..
Thanks thalamus..
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
Cool, it's well worth the couple of dollars.
I've used it pretty much constantly in monitoring mode since they were in beta when I had my desire. So, probably not far off a couple of years usage with me.
It doesn't eat battery either, because it polls when the device wakes up for another reason.
And the thing which really makes it good for me, it records usage of the system tasks, such as kernel threads, which can be massively handy in diagnosing an issue.

Solved by flashing latest adamG ROM..
Thanks adam and thalamus..haha..enjoyed my nexus s back...:thumbup:
Sent from my GT-I9100 using Tapatalk 2

Excessive Battery Drain 4%/hr

Hey,
Having a problem with my N5 draining my battery @ 4% / hr even when idle. According to the battery screen in settings the culprit is Android OS @ 32%.
I'm running CM M2 (stock kernel) on TMobile. I've got WiFi + Bluetooth on. NFC is off.
For comparison the phone has been on battery for 6hrs with only a few minutes screen on time and is at 61%.
Thoughts?
Sent from my Nexus 5 using xda app-developers app

Any apps draining that shouldn't be? Turn auto brightness off and keep around 30%. Screen always takes the most.... clearly. Could be fault of CM since they are nightlies and those are always a work in progress. Post in CM thread, always read previous post in that thread for battery issues.

I'm running stock ROM, and getting the same amount of battery drain as you. I'm pretty sure this is coming from wlan_rx_wake wakelocks if you have wifi on while this is draining. Though having data on doesn't help me, I just get bam_dmux_wakelocks. Try better battery stats to see what wakelocks are keeping your phone awake. I have tried everything to get wlan_rx_wake to stop, yet it hasn't. Would love if someone knew how to fix this battery drain.

Just installed better battery stats. Will report back in a few days.
I do suspect WiFi as well. I was out on LTE all day yesterday and the drain was < 1% / hr and after 12+ hrs I was at 80%.
I have geenified a lot of apps. No luck so far
Sent from my Nexus 5 using xda app-developers app

Turn off bluetooth. Android OS being the main culprit means an app is keeping it awake. Also, I've bad experience (at least in my s3 days) with CM with regards to battery. Try switching ROMS and try franco kernel as well (great battery life without gimping performance)

Your coverage can have a huge impact on battery drain. At work I have poor coverage and my battery will be low by the end of the day at home its good I will have less battery drain with more usage.
Sent from my Nexus 5 using Tapatalk

Cpudan80 said:
Just installed better battery stats. Will report back in a few days.
I do suspect WiFi as well. I was out on LTE all day yesterday and the drain was < 1% / hr and after 12+ hrs I was at 80%.
I have geenified a lot of apps. No luck so far
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
I think the easiest thing to see if it's ROM related or app related is to just backup your current ROM and re-flash the ROM without anything (besides your basic absolute must need app but try and avoid if possible) and try it for a day. If you still have the battery drain, then it's the ROM, in which case, I suggest using a different ROM. I recommend Omni or Cataclysm. If not, then it might be an app burning through your battery then.

I am not able to let my phone go on for 24 hours without charging. I definitely need to charge it daily. I tried turning off the wifi and data and all background apps and services, just the android stuff is running, still can't go over 24 hours. At most is around 20 - 22 hours on standby.

I'm having same issues. On stock rom.
Sent from my Nexus 5 using xda app-developers app

And I thought that getting 5.5% / h is normal (with LTE on) with syncing accounts and stuff.

Mine used to be so good. What's happened
Does the above screen shot mean anything?
Sent from my Nexus 5 using xda app-developers app

kraven001 said:
And I thought that getting 5.5% / h is normal (with LTE on) with syncing accounts and stuff.
Click to expand...
Click to collapse
Anything over 1% per hour while idling, whether wifi or lte, is unacceptable.
Post your BBS logs people. If you're going to post screenshots, at least post all of the screens. Less work for you to hand over the log.

Aerowinder said:
Anything over 1% per hour while idling, whether wifi or lte, is unacceptable.
Click to expand...
Click to collapse
+1 just disable feauteres you don't use. I have auto-sync enabled but I check only the very necessary syncing (gmail for me). Disable location report from google, Google now, OK Google hotword detection... And even greenify those battery killing apps (check partial wakelocks and alarms)

I have the same behavior with about 4% drain per hour screen
off idle when I use a CM nightly from about the last 10 days with bricked kernel. So I'm still with my january 07th. CM Nightly which has no drain at all.

The culprit for me is an EntriesRefresh wakelock coming from google.quicksearchbox. No idea what that is -- but it appears to be a common source of problems on KK ROMs across all devices.
i do like Google Now so I don't want to greenify that. Hopefully google will fix the app soon enough.
Anyone have any other thoughts/suggestions?
-- Dan

If I disable everything on my phone , maybe I can get the 1% / hour, but frankly I don't see the point.
I like google now, I like my emails syncing and getting notified about things - that's why I use a darn smartphone, otherwise I would get a "dumb" phone that idles.

How do you export all on bbs?
Sent from my Nexus 5 using xda app-developers app

Does your battery screen for Android OS look like this -
Or this -
Sent from my Nexus 5 using Tapatalk

Cpudan80 said:
The culprit for me is an EntriesRefresh wakelock coming from google.quicksearchbox. No idea what that is -- but it appears to be a common source of problems on KK ROMs across all devices.
i do like Google Now so I don't want to greenify that. Hopefully google will fix the app soon enough.
Anyone have any other thoughts/suggestions?
-- Dan
Click to expand...
Click to collapse
Google Now isn't inherently bad on battery. Are you using GEL?
I do Greenify it, but only because it has no purpose for me.

Aerowinder said:
Google Now isn't inherently bad on battery. Are you using GEL?
I do Greenify it, but only because it has no purpose for me.
Click to expand...
Click to collapse
Not using Google Experience Launcher just the regular AOSP launcher, but Google Now is enabled and the search box is on my launcher (but its not voice activated.)
What is the quick search box exactly? When I went to greenify it, greenify said that it was a system app and that greenifying it could cause problems.
-- Dan

Standby battery life

Hello i think my battery life it's not so good as the other's people. In standby (screen off) i see consumption around 1% per hour with 2g network and closed data.
Also, i have the greenify and i sleeping all applications except go sms pro, SwiftKey, and alarm clock.
I
After update to 4.4.2 kitkat i have did factory reset in settings.

They use custom kernel to save battery life
Sent from my XT1034 using xda app-developers app

all people in this topic using custom kernel?
http://forum.xda-developers.com/showthread.php?p=52055705#post52055705

giorgos3924 said:
Hello i think my battery life it's not so good as the other's people. In standby (screen off) i see consumption around 1% per hour with 2g network and closed data.
Also, i have the greenify and i sleeping all applications except go sms pro, SwiftKey, and alarm clock.
I
After update to 4.4.2 kitkat i have did factory reset in settings.
Click to expand...
Click to collapse
Same problem here, let me know if you get any solutions?

buntysatya said:
Same problem here, let me know if you get any solutions?
Click to expand...
Click to collapse
i am waiting for answers...
-

no custom kernel, all stock
http://forum.xda-developers.com/showpost.php?p=52035812&postcount=589

I'm no expert in battery life of the moto g, i'm still trying to get used to the phone but for me having spent 1% per hour in a day with no use and those settings is pretty good, i mean if i go to sleep with 70%+ battery left, i don't even bother to charge the phone.
Sent from my Moto G using xda app-developers app

yes, <1,5% is good in idle but it can be better because for me, its 0,3-0,5%/h, sometimes only 0,1%/h (it means 0,6-3% max. for my 6 hour night)

Geenify
Maybe the apps which you didnt greenify cause this battery drain ( not sure if this is a high drain as im using tweaky one Rom with faux kernel.. Maybe try to greenify those apps which you dont habe greenified now one after the other and tell us if it made a difference.. Also look in your settings if you disabled all things you dont need like print GPS etc.. Hopefully this helps

ItzzAce said:
Maybe the apps which you didnt greenify cause this battery drain ( not sure if this is a high drain as im using tweaky one Rom with faux kernel.. Maybe try to greenify those apps which you dont habe greenified now one after the other and tell us if it made a difference.. Also look in your settings if you disabled all things you dont need like print GPS etc.. Hopefully this helps
Click to expand...
Click to collapse
Would you recommend to greenify motorola services? I did once and couldn't check for updates and get it back working was a pain in the arse. I am currently having around 1% drain with wifi on 24/7 but once I had around 0.4 to 0.6%/h. Can't find wakelocks aswell, currently on stock kernel and rom.

I dont think that Motorola services darin mich battery..

I want the moderator to ban me.

downgrade your OS to make it work again.