Develop Bugs

Post Your Battery Stats for Those Who Use Their Phone...

So every time I read a battery thread and someone mentions how well a ROM is on battery the pictures posted always show that the user is barely using his phone. They show a picture of their phone that shows it being unplugged for over a day and everyone gets excited and thinks their phone will last over 24 hours on a particular ROM or setup. Then when they do not see the same results they can't figure out why.
The answer is, as long as your device has no apps or bugs keeping it wake, if you don't use it, it will last. My EVO 4G could last 24 hours if I didn't touch it. The thing is once you started to use it it wasn't long before it was over!
So I would like to see pictures of battery life from people that actually use their phone so we can see what Roms truly are the best and what battery tweaks really do work. I am not interested on what Rom sleeps the best. I use my phone and don't need it to sleep for 2 days. If you cannot get to a charger within a 24 hour period, you have something else going on that you might need to address, lol.
Please post what Rom you are running and anything that might be installed that would effect battery life for good or bad.
I am running my phone stock. It has never been rooted. Below you will see after 12h/44m unplugged my battery is down to 26% with 4.5 hours on screen time. I was on wi-fi the entire time and also have an Airave in my house so signal did not play an issue with this stat.
I keep my phone on auto brightness, GPS is always on (doesn't effect battery like people think, only uses it when it needs to) and have my weather, news, and Twitter apps syncing every 3 hours. I have no battery hacks or software running. I also use ADW Launcher EX as my launcher. I know some launchers are better then others with battery and it doesn't seem like ADW drains much at all.
I look forward to screenshots and setups from other people so we can truly see what setup, Roms, and tweaks work best for battery from people who truly use their phone.....

On a typical day I get about 12-14 hours from 100 to 0 battery charge.

I kinda agree with op. I ran stock for 2weeks and i got the same performance as him. It was superb
Sent from my SPH-D710 using xda premium

my battery is garbage compared to you guys. i get about 8hrs on average with very light use. i still can't figure out why my awake time is through the roof. i have 2 gmail accounts set to push and 2 other email accounts set to pull once a day and fb & twitter set to sync every 4hrs. battery life is similar whether i'm at work with horrible in building reception or at home connected to wifi & an airave. i've learned to deal with plugging for a lil bit every so often throughout the day, but was expecting to get over 12hrs considering the way i use my phone. at first i thought i maybe received a bad phone, but it was the same after replacing the phone.
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stevedeezy said:
my battery is garbage compared to you guys. i get about 8hrs on average with very light use. i still can't figure out why my awake time is through the roof. i have 2 gmail accounts set to push and 2 other email accounts set to pull once a day and fb & twitter set to sync every 4hrs. battery life is similar whether i'm at work with horrible in building reception or at home connected to wifi & an airave. i've learned to deal with plugging for a lil bit every so often throughout the day, but was expecting to get over 12hrs considering the way i use my phone. at first i thought i maybe received a bad phone, but it was the same after replacing the phone.
Click to expand...
Click to collapse
It looks like your phone barely sleeps. It's awake most if the time. Seems like you need a replacement phone or try a different kernel.

cdszoke said:
It looks like your phone barely sleeps. It's awake most if the time. Seems like you need a replacement phone or try a different kernel.
Click to expand...
Click to collapse
Agreed, your awake time should match your on screen time or at last be close to it. Something is killing your battery. Check out better battery stats which you can download from xda to find your wakelock.

stevedeezy said:
my battery is garbage compared to you guys. i get about 8hrs on average with very light use. i still can't figure out why my awake time is through the roof. i have 2 gmail accounts set to push and 2 other email accounts set to pull once a day and fb & twitter set to sync every 4hrs. battery life is similar whether i'm at work with horrible in building reception or at home connected to wifi & an airave. i've learned to deal with plugging for a lil bit every so often throughout the day, but was expecting to get over 12hrs considering the way i use my phone. at first i thought i maybe received a bad phone, but it was the same after replacing the phone.
Click to expand...
Click to collapse
Great app to figure out whats going on & fix it,
Free lite version,
https://market.android.com/details?...1bGwsMSwxLDEwMiwibmV4dGFwcC5zeXN0ZW1wYW5lbCJd
I recommend going with pay version though
https://market.android.com/details?...sMSwxLDUwMCwibmV4dGFwcC5zeXN0ZW1wYW5lbC5yMSJd

sling said:
Great app to figure out whats going on & fix it,
Free lite version,
https://market.android.com/details?...1bGwsMSwxLDEwMiwibmV4dGFwcC5zeXN0ZW1wYW5lbCJd
Click to expand...
Click to collapse
i just installed the lite version but have no idea how to read the stats yet. hopefully i can figure it out and find whats draining my battery.

stevedeezy said:
i just installed the lite version but have no idea how to read the stats yet. hopefully i can figure it out and find whats draining my battery.
Click to expand...
Click to collapse
The paid version has a monitoring feature you would need which is not included in the free version. I do not believe you can find the problem with the free version. Check out the app I recommended above, betterbatterystats.

stevedeezy said:
my battery is garbage compared to you guys. i get about 8hrs on average with very light use. i still can't figure out why my awake time is through the roof. i have 2 gmail accounts set to push and 2 other email accounts set to pull once a day and fb & twitter set to sync every 4hrs. battery life is similar whether i'm at work with horrible in building reception or at home connected to wifi & an airave. i've learned to deal with plugging for a lil bit every so often throughout the day, but was expecting to get over 12hrs considering the way i use my phone. at first i thought i maybe received a bad phone, but it was the same after replacing the phone.
Click to expand...
Click to collapse
So you are not constantly checking your phone?

leyvatron said:
So you are not constantly checking your phone?
Click to expand...
Click to collapse
no, not at all. i guess i really need to figure out what is causing my awake time & wifi statistic to not be on par with my screen on statistic. i've had my phone for just over 3 weeks now and learned to sort of deal with it, but after reading a few more threads about it, i'm concerned again.
This is what i currently have syncing:
2 gmail accounts - set to push
2 pop3 accounts - set to pull once a day
1 google calendar account - auto sync unchecked
facebook - 4hr refresh interval w/ notifications active
twitter - 4hr sync interval
and all native google apps that may sync in the background

This is what I got:

Here's mine. I didn't use my phone as much today as I usually do. But screen was at max brightness when I was using it and WiFi was only connected while I was at home. It was on but off except when searching for open signal otherwise. I'm using calkulins new Rom and haven't changed anything except that I'm running a live wallpaper and have all the sns crap and drm crap frozen
Sent from my SPH-D710 using xda premium

to the OP, the 12hrs with 4.5 hours of display on time is great
i can get 12hrs, but probably with 2-3 hours max of screen time
got 9 hours today with calcukin

Running stock. I have a heavy use screenshot with 4g on and everything syncing along with loads of calls,texts, and games. Also a screenshot of light use for comparison.
Sent from my Galaxy SII using XDA App.

Zoidpilot said:
Running stock. I have a heavy use screenshot with 4g on and everything syncing along with loads of calls,texts, and games. Also a screenshot of light use for comparison.
Sent from my Galaxy SII using XDA App.
Click to expand...
Click to collapse
looks like your wifi was on instead of 4G?
4g radio is biggest hog, cant believe you have 4g on all the time and got 12 hours out of it
and it shows 3% accounts for calls,unless for "load of" you mean texts and games

You guys are also forgetting about screen brightness and also signal. If you are in a low signal area you will get less life.
I just had to plug mine in at 3%. I lasted about 14hrs on what I consider moderate use.
Sent from my SPH-D710 using xda premium

at 13.5 hours and 3.5 hours of screen on time still at 25% batt on 3g the whole time.
Sent from my Galaxy S2

Was at school using 3g with heavy Web surfing for two hours.phone went to 50 percent with low brightness lol. My phone can last from 6 hours to 24 hours depending on usage.
If I don't touch my phone often with everything of and 3g on once abbrev a while it can last around a day
Sent from my SPH-D710 using xda premium

Zoidpilot said:
Running stock. I have a heavy use screenshot with 4g on and everything syncing along with loads of calls,texts, and games. Also a screenshot of light use for comparison.
Sent from my Galaxy SII using XDA App.
Click to expand...
Click to collapse
I call bull****!
One has 20hrs with around 50% bat left and the other has 11hrs with around 90% bat left.

Battery Life - screen on time & battery conditioning

Firstly let me say I'm a long time lurker of XDA, I don't often post but rather keep quiet in the shadows. I've owned many handsets (Including the Inc. and TB, meaning I know bad battery life) and this has always been the site I go to for hacking and general information.
I don't expect definite, for-sure answers. I'm just seeking some advice on this, I absolutely love this phone and a Nexus on Verizon has always been my dream.
Secondly, I'm not posting here asking why my screen uses over 50% of the depletion on my charges, it is supposed to, I know that. I see many threads asking about that, which is why I waited to post not wanting to ask what has been already. But I am asking about my case specifically, and want input.
The main thing here is the amount of screen on time I am able to get.
I have had my GNex since Saturday afternoon, when I bought it the battery was dead and I fully charged it, the first day I used it mostly while plugged into AC, using 4G to install my apps. Since then (the last two days) I have tried depleting the charge almost entirely before charging, shying away from charging mid-depletion. I have tried using CDMA mostly (my area has just marginally good 4G), hoping I could stop some of the bleeding, but to no avail. I should also say I yesterday for the first time threw a custom ROM/Kernel on and that seemed to help marginally, though in truth I don't see that really changing the screen power consumption.
Please take a good look at both screenshots, as said I care nothing about the %.
(I am aware there is still 13% remaining on my charge, but even so this seems just crazy)
In the first screenshot at the bottom it's apparent this isn't a huge amount of screen on time.
I would kill to get 4 hours of screen on time with this thing, heck even in the area of 3, but it doesn't seem to be in the foreseeable future as it looks now. I can get out 2 at most to this point, and that is on almost entirely 3G/WiFi with light/moderate data usage.
I really need to ask. Do I just need patience to let this battery break in? I hear some say this can be a week-long thing, but shouldn't I see some increase by now?
If not, do I seek out a replacement battery or could this be an actual defect of the AMOLED drawing more than it should?
Thanks for your help!
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There were quite a lot of awake time during screen off if I look your stat.
Thats your problem.
Too much sync?
Mine can get up to 3 hours and 45 minutes screen on time, span into 2 days stand by, gsm version.

Good point, looking into playing with sync in settings and JD.
But while that accounts for the drop during the 10hr overnight period (20% of battery/83% of time), I still feel the draw during screen on (80% of battery/17% of time) is just insane, even given the AMOLED.
Sent from my Galaxy Nexus using XDA App

Maybe its a rogue app running in the background making the battery drain real fast. Try wiping and running the phone normally without restoring your apps and see if that will improve. I'm having the same problem as you but with the GSM version. I'm looking through my apps though.
Sent from my Galaxy Nexus using Tapatalk

Here's my result
xl DIGITAL lx said:
Maybe its a rogue app running in the background making the battery drain real fast. Try wiping and running the phone normally without restoring your apps and see if that will improve. I'm having the same problem as you but with the GSM version. I'm looking through my apps though.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Here are some of the usual suspects:
- Facebook for Android app (uninstall it and replace it with Friendcaster and change the frequency of update t less often will do the trick)
- Accuweather widget or any other weather widgets
- Whatsapp
- Viber
- Latitude (google maps) - Login to Latitude and then ensure you select the option where it does not report your location and then sign out of Latitude.

Honestly, I have the GSM version and I've rarely gotten over 3 hours screen time. It's the screen. The battery life sucks, so you'll have to just ABC (always be charging), at the desk/sofa/car.
What I really want to ask is how you got the battery percentage inside the battery icon?!

This is also my exact problem. I can get great life if I don't touch the phone. Every time I use it for a few seconds, that's 2-3% gone. Browse the internet for 15 mins? Forget it, that's 10% gone at least.
I guess it's just the price to pay for such a gorgeous screen.

Black Mirror said:
Honestly, I have the GSM version and I've rarely gotten over 3 hours screen time. It's the screen. The battery life sucks, so you'll have to just ABC (always be charging), at the desk/sofa/car.
What I really want to ask is how you got the battery percentage inside the battery icon?!
Click to expand...
Click to collapse
The custom ROM I'm running had it as the default icon: AXI0M 2.3.
9kracing said:
This is also my exact problem. I can get great life if I don't touch the phone. Every time I use it for a few seconds, that's 2-3% gone. Browse the internet for 15 mins? Forget it, that's 10% gone at least.
I guess it's just the price to pay for such a gorgeous screen.
Click to expand...
Click to collapse
1++++++++++++++++++

pcphobic said:
Here's my result
Here are some of the usual suspects:
- Facebook for Android app (uninstall it and replace it with Friendcaster and change the frequency of update t less often will do the trick)
- Accuweather widget or any other weather widgets
- Whatsapp
- Viber
- Latitude (google maps) - Login to Latitude and then ensure you select the option where it does not report your location and then sign out of Latitude.
Click to expand...
Click to collapse
What is your total screen on time during those charges?
The only app in that list I really have to check is latitude. Doing so now.

I think op should stop playing wind up knight in his sleep. Case closed. Just kidding. But seriously, probably got something using up cpu cycles when using phone and not using it. If i dont play any games, i easily get 4 hours screen time, and got 5.25 over the weekend.
Sent from my Galaxy Nexus using xda premium

@rbiter said:
I think op should stop playing wind up knight in his sleep. Case closed. Just kidding. But seriously, probably got something using up cpu cycles when using phone and not using it. If i dont play any games, i easily get 4 hours screen time, and got 5.25 over the weekend.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
When I flashed this ROM I purposely left games out when setting it back up, the only one is Drop7 which I purposely make sure gets killed when I'm done. All apps which sync I have either at minimal amounts or off entirely.

Are you in north america? Try ugkk7 radio maybe? I am in the usa and xxkk6 was ok, but since i flashed ugkk7 reception is excellent. Oh wait. Youre cdma version. I dont know if the same applies. I do know radios designated UGxx# are north american.
Sent from my Galaxy Nexus using xda premium

you could install CPU SPY to see if your device is going in deepsleep, I had a problem that one app was using most of the time 350mhz and was using my battery very fast.
after that i found the app with battery monitor and disabled the app to see if the problem was solved, and that was the case, and i have now a battery life from more then a day instead of 5 hours.

I can get 3.5 hours of screen on time spread over ~36 hours or so on the GSM version.. if LTE is on I would assume around two hours of screen on time was normal for a Verizon version just because of how LTE is but it did look like your CPU was awake a lot as well so also it could be a rogue app, not necessarily a game.
Sent from my Galaxy Nexus using xda premium

check here
http://forum.xda-developers.com/showthread.php?t=1387243

joshnichols189 said:
I can get 3.5 hours of screen on time spread over ~36 hours or so on the GSM version.. if LTE is on I would assume around two hours of screen on time was normal for a Verizon version just because of how LTE is but it did look like your CPU was awake a lot as well so also it could be a rogue app, not necessarily a game.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Will give that a try. Like mentioned though almost none of that time was 4G enabled. (Maybe 10mins of that first green section.) The slope is just as steep.
In truth this was a fairly data-light charge.
Could it be the rogue app would actually sap battery only when the screen is on? Even though there is wake time where there shouldn't, that isn't the main area of drain.
Sent from my Galaxy Nexus using XDA App

Galaxy Nexus Battery Fix

Hi,
I just got my Galaxy Nexus, flashed with AOKP build 18 and i gotta say that the battery life is unacceptable. It drops 10% in less then 1h while the phone is sitting there doing nothing. Wifi, bluetooth, location services, GPS are off. All background apps closed.
It lasts about half the time my iPhone 4 does and it is a year and half old.
I see some people showing examples of how their battery last for more then 20h but all these are BS tests as they leave the phone on standby all day or have some very light usage.
Is there a real fix for this? Am i forced to drop another 50$ and buy Samsung's 2100mh extended battery?
btw i tried setCPU also to lower CPU to minimum when in standby but doesnt do much. I want a solution that will enable me to use my phone, not something that makes it last 40h in standby and then kills it in 2h when i use it.
please help!

So everyone that posts four hours of screen on time is bullshitting? Did you know the first 10% isn't even that accurate? If you're on Verizon turn off LTE. If you're on GSM and you don't get three hours of screen on time you have an app that is killing your battery. It is as simple as that.
Sent from my Galaxy Nexus using xda premium

Try toggling Bluetooth on and then off, then grab CpuSpy from the market and check out if the CPU is pegged at a certain speed.
Some builds of ALL the custom ROMs have had issues where the phone wont sleep correctly, high %-age of Android System process, etc.
I disagree that its silly to talk about idle time on battery, because idle time is the closest we can all get to apples to apples comparison. We all USE our phones differently, the closest we come to using them the same is when they are just sitting there idle (not quite exact because some people sync data, some people only have 3G, etc, but a lot closer than person A playing games for 3 hours at a clip vs person B browsing for 3 hours)
I *still* havent seen anyone come up with a template like setup to report battery life. Like you said it does me no good to know someone dropped 3% "overnight" without knowing how long "overnight" is, if they had 3g/4g/Wifi enabled or even disabled completely, sync on/off, etc.
Personally, Ive seen 1.5%/hr drop with my phone idle. Running AOKP b19, LeanKernel, interactivex governor, undervolted (-75 mA at each level from 180 mhz to 1200 mhz), 4G on, BT on, GPS on, sync on (1 gmail account).
I imagine with all that stuff running 1.5%/hr isnt half bad. Screen on time isnt incredible but its not bad, but again my screen on activities can (and probably will) be different than your screen on activities so take that with several grains of salt.

joshnichols189 said:
So everyone that posts four hours of screen on time is bullshitting? Did you know the first 10% isn't even that accurate? If you're on Verizon turn off LTE. If you're on GSM and you don't get three hours of screen on time you have an app that is killing your battery. It is as simple as that.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
It's not the first 10%, it's all the time.. it drops for about 10% or more every hour. Less then 3h of screen time.
I'll give cpuspy a try and see if some app is killing my battery.
I used AOKP rom because most of the people in the thread were saying that rom fixed their battery issue but for me it made no difference.

angeluszero said:
It's not the first 10%, it's all the time.. it drops for about 10% or more every hour. Less then 3h of screen time.
I'll give cpuspy a try and see if some app is killing my battery.
I used AOKP rom because most of the people in the thread were saying that rom fixed their battery issue but for me it made no difference.
Click to expand...
Click to collapse
Yea somethings not right. Off charge at 8am and its 4:30pm now. Got 61% left at time of this writing and been using it quite alot. Typically have about 75% left about this time.
I just use an AOKP like yourself and a custom kernel. I'm on the phone like every 15min reading emails, SMS, word feud, twitter news, Facebook, Gmail.
LTE EX Galaxy Nexus - AOSP KANG
Asus Transformer - 3.2.1 OC/UV

It's actually 2000 mAh not 2100 mAh.
You can use a custom kernel such as Franco Kernel. New version came out today and includes more battery improvements (according to changelog!)

My phone essentially sits idle unless my screen is on...
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As you can see, if my screen is on the graph drops, when it's off the graph flattens out and the battery barely moves. I used to be sick to my stomach of the battery life until I realized it was because I wouldn't put the phone down and always had the screen on thus killing the battery.
Sent from my Galaxy Nexus using XDA App

Powell730 said:
My phone essentially sits idle unless my screen is on...
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Just a word of advice. Whites consume more power on AMOLED screens. You'd probably maximize your battery a lot more if you went back to a "Ice Cream Sandwich" feel or at least apply a black themed MIUI.

angeluszero said:
It's not the first 10%, it's all the time.. it drops for about 10% or more every hour. Less then 3h of screen time.
I'll give cpuspy a try and see if some app is killing my battery.
I used AOKP rom because most of the people in the thread were saying that rom fixed their battery issue but for me it made no difference.
Click to expand...
Click to collapse
I had something similar and it was recommended to me on these forums that I log out of Gtalk.
Before people come out and say it makes no sense - it doesn't really matter if it does or not - it worked for me. I get a full day out of a charge now, which doesn't really matter because as someone said above it's all relative. What DOES matter is that my phone is now sleeping properly, so the battery doesn't drain when the phone is idle. That's the part that wasn't working on my phone.
If you feel so inclined, give this a try and see if it works for you. Just log out of all Google talk accounts and see how your battery life is - you'll know within a day if it's helping.

Have you flashed the new radios yet?
You can also try different kernels and see which one works best for you.

zephiK said:
Just a word of advice. Whites consume more power on AMOLED screens. You'd probably maximize your battery a lot more if you went back to a "Ice Cream Sandwich" feel or at least apply a black themed MIUI.
Click to expand...
Click to collapse
Yeah I just installed this today, giving it a trial run. It's OK so far.. I think just growing pains so far. Also, I don't think themes work just yet.. At least last I saw.
Sent from my Galaxy Nexus using XDA App

Powell730 said:
Yeah I just installed this today, giving it a trial run. It's OK so far.. I think just growing pains so far. Also, I don't think themes work just yet.. At least last I saw.
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Ah okay.
I think MIUI is pretty much at the same state as CM9. Just lots of work needing to be done since ICS revamped Android in so many ways.

zephiK said:
It's actually 2000 mAh not 2100 mAh.
You can use a custom kernel such as Franco Kernel. New version came out today and includes more battery improvements (according to changelog!)
Click to expand...
Click to collapse
not quite.
can i preface by saying that there are two types of Gnexus's out there? the SCH-i515 (CDMA/LTE Verizon) and the GT-i9250 (HSPA+, AT&T).
The 2000mAh is for the HSPA+ version
The 2100mAh is for the LTE version.
i see a LOT of bad advice on these forums here.
my best advice to you (from one Verizon Nexus owner to another), is to keep at stock 4.0.2. Root it, and apply a custom kernel. Only apply custom kernel if you feel that you're still not getting decent battery life for a whole day on 4G stock ROM/kernel.
As far as I know, Verizon Nexus owners' max on-screen time with 4G enabled all day is about 3 hours MAX, and thats if you disable everything else but LTE, with very low brightness settings, and on extended battery.
imo, the next 4.0.3 or 4.0.4 update hopefully will mitigate some battery consumption issues.

aohus said:
As far as I know, Verizon Nexus owners' max on-screen time with 4G enabled all day is about 3 hours MAX, and thats if you disable everything else but LTE, with very low brightness settings, and on extended battery.
Click to expand...
Click to collapse
Are you talking about 3 hours MAX browsing or just being POWERED ON?
If you are talking about just being on for 3 hours, you are GROSSLY incorrect.

angeluszero said:
Hi,
I just got my Galaxy Nexus, flashed with AOKP build 18 and i gotta say that the battery life is unacceptable. It drops 10% in less then 1h while the phone is sitting there doing nothing. Wifi, bluetooth, location services, GPS are off. All background apps closed.
It lasts about half the time my iPhone 4 does and it is a year and half old.
I see some people showing examples of how their battery last for more then 20h but all these are BS tests as they leave the phone on standby all day or have some very light usage.
Is there a real fix for this? Am i forced to drop another 50$ and buy Samsung's 2100mh extended battery?
btw i tried setCPU also to lower CPU to minimum when in standby but doesnt do much. I want a solution that will enable me to use my phone, not something that makes it last 40h in standby and then kills it in 2h when i use it.
please help!
Click to expand...
Click to collapse
See my screen on time?
4 hours screen on time including 21 minutes using gps for Sygic Navigation is not bull****. Stand by for up to 61 hours, easy.
And I was using the phone extensively for web browsing, facebook, gplus, xda, games, etc.
All with stock rom and stock kernel, extended battery 2000mAh, gsm.
No BS
Sent from my Galaxy Nexus using xda premium

gogol said:
See my screen on time?
4 hours screen on time including 21 minutes using gps for Sygic Navigation is not bull****. Stand by for up to 61 hours, easy.
And I was using the phone extensively for web browsing, facebook, gplus, xda, games, etc.
All with stock rom and stock kernel, extended battery 2000mAh, gsm.
No BS
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
You were on wifi the entire day.
You are using the HSPA+ version of the Nexus. HSPA+ version gets better battery life.
Try being on HSPA+ the entire day with wifi disabled. you will not be getting 4 hours of battery life on-screen time.
z06mike said:
Are you talking about 3 hours MAX browsing or just being POWERED ON?
If you are talking about just being on for 3 hours, you are GROSSLY incorrect.
Click to expand...
Click to collapse
Please reread what i wrote. MAX ON-SCREEN TIME.
it is not possible to go 4 hours of on-screen time with LTE enabled all day.

aohus said:
You were on wifi the entire day.
You are using the HSPA+ version of the Nexus. HSPA+ version gets better battery life.
Try being on HSPA+ the entire day with wifi disabled. you will not be getting 4 hours of battery life on-screen time.
Please reread what i wrote. MAX ON-SCREEN TIME.
it is not possible to go 4 hours of on-screen time with LTE enabled all day.
Click to expand...
Click to collapse
Most of the time I was on wifi, but not all.
But fair enough, I will test on 100% without WiFi. However, we don't have HSDPA+ unfortunately. Only HSDPA or 3G.
Sent from my Galaxy Nexus using xda premium

aohus said:
You were on wifi the entire day.
You are using the HSPA+ version of the Nexus. HSPA+ version gets better battery life.
Try being on HSPA+ the entire day with wifi disabled. you will not be getting 4 hours of battery life on-screen time.
Please reread what i wrote. MAX ON-SCREEN TIME.
it is not possible to go 4 hours of on-screen time with LTE enabled all day.
Click to expand...
Click to collapse
I went 13 hours yesterday with LTE on all day and had almost 4 hours of screen on time. I'm running stock ICS unrooted and all of my sync stuff is enabled. I'm also using the extended battery.
Sent from my Galaxy Nexus

johnbibbs said:
I went 13 hours yesterday with LTE on all day and had almost 4 hours of screen on time. I'm running stock ICS unrooted and all of my sync stuff is enabled. I'm also using the extended battery.
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
would like proof. afaik, its impossible to get 4 hours of battery life with LTE enabled all day.
sounds dumb, but are you sure you have Verizon's GNexus? Your profile shows an AT&T carrier... otherwise you should probably update it.

player911 said:
Yea somethings not right. Off charge at 8am and its 4:30pm now. Got 61% left at time of this writing and been using it quite alot. Typically have about 75% left about this time.
I just use an AOKP like yourself and a custom kernel. I'm on the phone like every 15min reading emails, SMS, word feud, twitter news, Facebook, Gmail.
LTE EX Galaxy Nexus - AOSP KANG
Asus Transformer - 3.2.1 OC/UV
Click to expand...
Click to collapse
I think the Kernel is what makes the difference. It seems to be the only difference i see between myself and the people like you have a reasonable battery life.
which one do you recommend? And i'm a noob at this so could you point me to a thread the explains how to flash it? If u cant its ok im sure i can figure it out.

I've got to break the well spoken rule about battery life threads.

After long being one of those people who would never post a thread with bias questions or answers.
It's come to this.
I long for the battery I had from ICS, I never got less than 4 hours screen on and 16 hours standby together.
The best I got was right at 5 hours screen on with 18 hours standby.
All with wifi/3G only, very little to none 4G, it's fine with me.
AOKP M6.
_____
Every single ROM/Kernel combination since I've moved to JB has provided me with just......crap......
AOKP, AOKP kangs, CM, Liquid, CNA, and Eclipse along in different combinations with
Faux, Lean, stock, 007, TinyKernel, and Trinity kernels.
It does not matter what combination I use.
I can barely get over 3 hours-ish screen on time with about 12-18 hours standby.
Now if I use the screen less than 2 hours, I can get up to two days standby, which is nice but not the overall complete usefulness I had.
I know battery has long been an issue for many of us, but I see people in threads talking about their 2 hours of screen on time like it's amazing when it's awful, especially when some of us, could, and used to get close to 5 with stock batteries or 2100 extended (mine)
If you're using LTE all the time, only 2 hours screen on is justified because it should be common knowledge what happens.
Point of the thread is this, I want to know, those on JB with stock or 2100mAh battery and can manage 4+ hours screen on and still close to a day of screen on, what's your secret? Every detail, spill them.
Is it our fault or are we just in a down time of battery efficiency in the ROMs and kernels?

There is no secret, jb is crap when compared to battery usage on ics
Sent from my Galaxy Nexus using xda premium

I believe project butter is to blame. But that's just me
Sent from my Galaxy Nexus

Pm me. I'll tell you whatever I can in hopes that it helps you.
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Sent from my AOSP Android 4.1.1 Galaxy Nexus.

Why not just post here, then we can all possibly benefit
Sent from my Galaxy Nexus using Tapatalk 2

Couldn't figure out why my battery life was so poor the for the last month or so. Good to see I'm not the only one with the problem.
AOKP ICS with Franco kernel gave me amazing battery life. Jelly Bean not so much.

I personally believe that anyone getting more screen time than you (this goes for anyone) is:
a) Using their phone in an environment that is less bright than you (indoors, on the bus, in the subway)
b) and / or not syncing as many things as you / not as often as you.
Reverse the above for people getting less screen time than you.
This is the truth of the matter.
Personally, I get 2 to 3 hours to 3.5 hours of screen time on JB, depending on usage.
4 hours if I read in bed at night.
Edit: Kernel / ROM be damned, maybe it'll make 10 to 15 minutes worth of difference. NOBODY has presented scientific proof of any ROM/kernel being different from any other. It's always "oh yaa best battery life ever with this rom". It's just noise and cherry-picked screenshots.

ringer13 said:
Why not just post here, then we can all possibly benefit
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
I will then. I may not get to it for a day or two though as I'm busy and will need time to write up as detailed as I can my usage, settings, etc.
Sent from my AOSP Android 4.1.1 Galaxy Nexus.

I usually get at least 1 day worth of charge. My set up is pretty easy tho. Since I am in front of a computer 75% of the time , gmail sync is turned off, twitter is @ 4 hours, Facebook set to never with location turned off. Phone gps and location are also turned off unless I M walking towards the bus stop. I don't need to be checking my phone every 5 minutes so my useage is pretty stable and predictable. I wonder what you guys are doing to make the battery die so quick? If your usage patterns are pretty high with checking email 100s of texts and lots of twitter and Facebook well yeah I'll die quick.
Also I seem to get the same results with custom kernels and stock. I have little experience with CPU controls and and such so maybe setting a lower frequency will help?
My .2 ponies.
Sent from my Galaxy Nexus using xda app-developers app

Battery can be related to many causes leading to user error. I never used ICS on this phone so I honestly have no idea how great the battery was.
Google now, project butter and many other optimizations are to blame yes.
Depends how much you use it and what is going and the vary of networks going on and off and switching. I can normally pull off 3-4 hours of near heavy use. My droid incredible could only get at least 1 hour max. So maybe it is me but the nexus is a godsend for me.
Leaving the governor at interactive with low max and undervolting will help battery and a specific kernel. I can normally roll with 0-10% brightness and have all networks running and syncing.
I'm tired and ready to cook my tacos I'll be back later with more input.
Sent from my Galaxy Nexus using Tapatalk 2

STOP overclocking your phone (even to 1350), under clocking exists you know.
STOP using interactive governors.
STOP using your phone so much.
STOP complaining about it.
Sent from my Galaxy Nexus using xda app-developers app

Try this...
I have an old Android phone that my boy plays with...so I turn the cell radio off & have it on the wifi signal only. Even with him having the screen on for hours & hours (usually playing games), the phone will stay on battery for almost 4 days!
Turn your cell radio to airplane mode & then turn on wifi only...mess around with it, play games & see what the difference is. When I have a Sprint signal (usually junk 2g one) at home I get poor battery life...when I hack the PRL to choose a 3g (better) signal I get twice the battery life...
I've seen other battery life threads where the signal is a MAJOR factor & even with a strong 2g signal the 3g is probably better at not wasting battery. (4g is a whole other story)

I've found 4 things that almost double my battery life
1) Google Maps: huge battery drainer. freezing it doesn't help either, it has to be uninstalled. Mapquest from the play store is a decent battery friendly alternative. or if you really need gmaps, copy the .apk file and install it when needed, then uninstall afterward.
2) Push Email apps: i.e. Yahoo mail app, Gmail app... use the built-in email app and set the refresh limit to every hour.
3) 3G/2G: when your not using data, put it to 2g networks only. huge battery savings especially if you're somewhere with a weak 3/4g signal.
4) NFC/WIFI/GPS : turn them off if your not using them (obviously)
your results may vary, but doing these things did wonders for my battery. I average 23-26 hours with 2.5-3.5 hrs screen on time. before that I was getting 14-16 hrs with about 1.5-2 hrs screen on
Sent from my Galaxy Nexus using xda premium

lowrider262 said:
3) 3G/2G: when your not using data, put it to 2g networks only. huge battery savings especially if you're somewhere with a weak 3/4g signal.
4) NFC/WIFI/GPS : turn them off if your not using them (obviously)
Click to expand...
Click to collapse
Well, Switching 2g/3g is pretty battery draining, too. So better be sure you don't use 3g networks for a while. constantly switching just to be a minute or two at 2g just drains more
Turning of WiFi is pretty obvious but NFC and GPS shouldn't take any battery juice if they arn't in use... Someone tested it and could proove, that gps only uses battery power if it's searching for a connection.

As you can see, you basically need t neuter your device and constantly worry in order to get 'great' battery life, lol.

skadebo said:
As you can see, you basically need t neuter your device and constantly worry in order to get 'great' battery life, lol.
Click to expand...
Click to collapse
yeah that's the downside to the smartphones.

skadebo said:
As you can see, you basically need t neuter your device and constantly worry in order to get 'great' battery life, lol.
Click to expand...
Click to collapse
Yup. Use it, roll with a charger and forget about it
Sent from my Galaxy Nexus using xda premium

Its a small battery, they should up the battery sizes. They can fit the samsung galaxy note 2's battery in the samsung galaxy nexus if they wanted too.. /the end.

mike.b93 said:
Well, Switching 2g/3g is pretty battery draining, too. So better be sure you don't use 3g networks for a while. constantly switching just to be a minute or two at 2g just drains more
Turning of WiFi is pretty obvious but NFC and GPS shouldn't take any battery juice if they arn't in use... Someone tested it and could proove, that gps only uses battery power if it's searching for a connection.
Click to expand...
Click to collapse
yea I only switch to 2g when I know its just gonna be sitting in my pocket for a while, like when I'm at work. in that situation it definaetly helps. but your right switching constantly is bad too. :thumbup: as for NFC and GPS, it just seems to help for me, maybe its just placebo. like I said results may vary
Sent from my Galaxy Nexus using xda premium

I thought leave it on interactive since jb was tweaked around that
--------
Sent from my Sprint Nexus 3

Battery drain after 4.4 OTA...

Hey guys, so before, when I was on 4.3, overnight I would only lose about 2 to 4 percent battery life. I would charge my Nexus 7 until 100 percent during the evening. Then I'd unplug it but not use it. I'd fall asleep and wake up about 8 hours later and the battery will be about 98 percent. This kind of battery life is outstanding and I would love for my Nexus 7 to reach this benchmark again. Last evening , I fully charged my nexus 7 (now on 4.4) and unplugged it and didn't use it. When I woke up 8 hours later, the battery was at 82 percent. I was surprised (this is the first time I noticed it. (I've been busy because I just took up driving, and it's Thanksgiving break... Plus I just received the OTA update on Thursday). Anyways I went to settings and tapped on battery, and noticed that Android OS was the culprit. I saw a forum where people stated that a factory reset would take care of the issue. I do not want to lose my app data and go through downloading and installing every single app again. Are there any troubleshooting steps I could go through to resolve my battery issue or should I just reset my Nexus 7? Thank you guys.

Been struggling with the same issue. I have recently been using an app called App Ops --
https://play.google.com/store/apps/details?id=com.findsdk.apppermission
It helps you find apps using wakelocks and then gives you the ability to set/clear permissions (like wakelock) on an app-by-app basis. Though I have disabled wakelock on a large number of apps and turned off synch for most things, I am still seeing occasions where battery use drops at about 3%/hour while supposedly in sleep mode. Making progress but not there yet.
Dave

ahura999 said:
Hey guys, so before, when I was on 4.3, overnight I would only lose about 2 to 4 percent battery life. I would charge my Nexus 7 until 100 percent during the evening. Then I'd unplug it but not use it. I'd fall asleep and wake up about 8 hours later and the battery will be about 98 percent. This kind of battery life is outstanding and I would love for my Nexus 7 to reach this benchmark again. Last evening , I fully charged my nexus 7 (now on 4.4) and unplugged it and didn't use it. When I woke up 8 hours later, the battery was at 82 percent. I was surprised (this is the first time I noticed it. (I've been busy because I just took up driving, and it's Thanksgiving break... Plus I just received the OTA update on Thursday). Anyways I went to settings and tapped on battery, and noticed that Android OS was the culprit. I saw a forum where people stated that a factory reset would take care of the issue. I do not want to lose my app data and go through downloading and installing every single app again. Are there any troubleshooting steps I could go through to resolve my battery issue or should I just reset my Nexus 7? Thank you guys.
Click to expand...
Click to collapse
I've been noticing similar issues and it's not consistent... I can leave it overnight and lose a few percent.. then after a day of light use - it's down to 22% whereas before that would barely get it down to 80%. Then the next day it'll be ok and stay up around 80% by the end of the day.

Its probably the wifi wakelock that a lot of us have been having on Kit Kat. My router or devices on my network are waking up my tablet and phone roughly a few hundred times an hour, not allowing the devices to sleep at all. Use the beta Better Battery Stats to see what your wakelock is.

Can't believe Google messed this up. Every update is another battery drama. I'm having the same issue:
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muyoso said:
Its probably the wifi wakelock that a lot of us have been having on Kit Kat. My router or devices on my network are waking up my tablet and phone roughly a few hundred times an hour, not allowing the devices to sleep at all. Use the beta Better Battery Stats to see what your wakelock is.
Click to expand...
Click to collapse
Does it need root?

What exactly could we do to solve this... I mean, you'd expect the update do upgrade performance not downgrade it... Do you guys think there will ever be a fix (for non rooted users like me)... And would a factory reset help? (if any of you go ahead with the factory reset, please let me know ) thanks guys
Sent from my Nexus 7 using XDA Premium 4 mobile app

For those that are unhappy with KitKat, just go back to Jellybean (At least for the time being), or do what I did and install CM10.2.
IMO KitKat has too much of Google's thumbprint on it for my liking, and I've yet to see anything positive - including performance. Even the emoji keyboard is useless to me since I already use a 3rd party keyboard.
On top of that, I was having too many 3rd party app issues as well. (I know that's not Google's fault)
Yesterday I decided that I had enough of KK, installed CM10.2, and now everything works perfectly.
IDK IMO KitKat might be the latest, but it's not the greatest...
Sent from my Nexus 7 using XDA Premium 4 mobile app

No root needed for app ops, its not really an app, more of a shortcut to the feature which Google don't want to make official yet. But it's a part of android and with 4.4 they have included the ability to disable keep awake for almost every app. It does wonders for battery life. I got 3,5 days with 11 hours screen on time. The development of android has become too fragmented so there's no consistency any longer, that's why most battery drainage nowadays is caused by Google's own apps. And if you disable keep awake for eg Facebook messenger you will still get notifications, even if the tablet is in deep sleep. So i honestly don't understand what the keep awake function is for. I have disabled it for all apps, Google services, Google play store + the sub stores like play books, games etc and android system. I haven't had any problems.
Sent from my Nexus 7 using Tapatalk 4

The idea of the ota is to update and upgrade performance without you having to tweak anything.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

Is this normal? (brightness is maintained at half) what exactly is "Android os"... Obviously it's kit kat but what uses it? And what can I turn off via app Ops to reduce android os like it was on 4.3?

Sorry for extra posts but my pictured never upload unless uploaded in different posts one by one... (using the app)
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

ahura999 said:
The idea of the ota is to update and upgrade performance without you having to tweak anything.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
You've never worked in IT huh? LOL
Also (just off the top of my head) go ask Motorola Milestone users how they liked their Froyo upgrade. 9 months they waited for that upgrade, and when it arrived it crippled their phone.
Yes the "idea" of doing an upgrade is to make things better, but in the "real world" there's a reason why many times doing a "Rollback" is the better option...
Sent from my Nexus 7 using XDA Premium 4 mobile app

ahura999 said:
Sorry for extra posts but my pictured never upload unless uploaded in different posts one by one... (using the app)
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thats not normal, that's bad developing. I had the same drainage. I have Location, vibration and keep awake disabled for android system with no consequences but i havent used the gps since so it might affect that. You can disable keep awake for everything except mobile data. If you see "never used" then you can probably leave it on. The standby time i get now is sick.
Sent from my Nexus 7 using Tapatalk 4

I have ridiculous battery drain in standby.
With better battery stats, I see something called suspend-backoff something something. I'll post a screen shot when I get home but that is keeping my tab from going into deep sleep. Any ideas?
Sent from my C6903 using xda app-developers app

@ahura999 I noticed that when I was watching a streamed movie (I think via Flixster) that the google "media Server" function was running continuously (keep awake time was 8 hours). I forced stopped it and now it behaves normally. I did not go back and try running Flixster again to see if this was the root of my problem.
I'm not suggesting Flixster is the issue per se but that was the only app I ran that should have caused the mediaserver service to run that day.
Good luck!
ahura999 said:
Hey guys, so before, when I was on 4.3, overnight I would only lose about 2 to 4 percent battery life. I would charge my Nexus 7 until 100 percent during the evening. Then I'd unplug it but not use it. I'd fall asleep and wake up about 8 hours later and the battery will be about 98 percent. This kind of battery life is outstanding and I would love for my Nexus 7 to reach this benchmark again. Last evening , I fully charged my nexus 7 (now on 4.4) and unplugged it and didn't use it. When I woke up 8 hours later, the battery was at 82 percent. I was surprised (this is the first time I noticed it. (I've been busy because I just took up driving, and it's Thanksgiving break... Plus I just received the OTA update on Thursday). Anyways I went to settings and tapped on battery, and noticed that Android OS was the culprit. I saw a forum where people stated that a factory reset would take care of the issue. I do not want to lose my app data and go through downloading and installing every single app again. Are there any troubleshooting steps I could go through to resolve my battery issue or should I just reset my Nexus 7? Thank you guys.
Click to expand...
Click to collapse

Ever since 4.4. This happens:
Why? Battery life is also worst. I feel like the only one with these issues.
Sent from my Nexus 7 using Tapatalk 4
Sent from my Nexus 7 using Tapatalk 4

I've also got a terrible battery drain issue going on. It loses 20-30% charge overnight doing absolutely nothing
According to the battery stats, WiFi is always on... even though, its turned off, doesn't show the notification icon, and everything is set to off in the WiFi advanced settings. WTF.
I'm on the stock kitkat rom. My N7 is 3 days old and not rooted. I didn't really want to root it ...

For me it seems to be pretty decent. I've been using ART, so i don't know if its any better or worse.

I had a different problem, was using ART but since yesterday battery is not getting charged beyond 71%, it stayed like that for 1 hour.
Going back to Dalvik to see what happens, earlier I had it charged to 100% but it was before 4.4 upgrade.
---------- Post added at 12:46 PM ---------- Previous post was at 12:44 PM ----------
I had a different problem, was using ART but since yesterday battery is not getting charged beyond 71%, it stayed like that for 1 hour.
Going back to Dalvik to see what happens, earlier I had it charged to 100% but it was before 4.4 upgrade.