Develop Bugs

Battery Life!!!

if you are getting good, or bad battery life, take a screenshot and post it here and share your story!!!!
In the picture, im still at 72%!!!!! i know the phone hasnt been awake much, but still!!!

The phone hasnt been on almost at all lol

i wish my batter life was that good. i have terrible battery life. i get about 5-6 hours before i have to charge up again. i hope its just software related and not the phone

Its software related. Considering returning this and going to the dark side (iPhone)

JGW310 said:
if you are getting good, or bad battery life, take a screenshot and post it here and share your story!!!!
In the picture, im still at 72%!!!!! i know the phone hasnt been awake much, but still!!!
Click to expand...
Click to collapse
If I never turned any of my phones on they would all look like this......I want to be able to use my phone and not have to worry about battery life.
Anyway, if you don't use your phone, then why do you even need it?

[email protected] said:
If you are going to start a battery thread and brag about how good it is, at least post a picture of you actually using the phone. No one really cares how long the phone will last if you do not use the thing......
If you don't use it, then why do you even need it?
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Click to collapse
Today it was primarily not even being used because i wasnt at home and i left my phone at home, so thats why............

JGW310 said:
Today it was primarily not even being used because i wasnt at home and i left my phone at home, so thats why............
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Click to collapse
If I didn't turn on my EVO it would look the same as well. Once I would turn it on though, that's when the game changed!
What I would like to see is people show their screen on time and how much battery they have left. That is the stat I am most interested in........I am thinking it is averaging about 3 hours of total screen on time...
I love the people that claim like 7 hours on screen time even with the EVO 3D. Do people really think this is believable with stock batteries that ship with the device.

[email protected] said:
If I didn't turn on my EVO it would look the same as well. Once I would turn it on though, that's when the game changed!
What I would like to see is people show their screen on time and how much battery they have left. That is the stat I am most interested in........I am thinking it is averaging about 3 hours of total screen on time...
Click to expand...
Click to collapse
I will post a screenshot tomorrow of my battery life, but I get terrible coverage at school, so that will factor into my results b/c the phone is (obviously) CDMA... thats the one thing i really cant stand about CDMA phones lol

JGW310 said:
I will post a screenshot tomorrow of my battery life, but I get terrible coverage at school, so that will factor into my results b/c the phone is (obviously) CDMA... thats the one thing i really cant stand about CDMA phones lol
Click to expand...
Click to collapse
Yeah, bad signal....might as well forget about that stat. lol
So if a GSM phone has bad signal, it won't be affected like a CDMA phone? If so, wonder why that is.

Here is the thread detailing the known battery glitch
There is no fix for the sprint version yet. Someone made a kernel for the international version that fixes it.
I returned my phone over this issue and I'm waiting for it to be patched before I can use it

Yesterday I kept my 4G radio on all day, sent texts, made a few calls, surfed the web, streamed Slacker and Spotify, checked FB and twitter, and hit 20% after 16 hours.

My stats for today.
Phone of charger for 13 hours and 47 minutes.
Screen on time - 3 hours 25 minutes.
Battery left - 9%
Used wi-fi, 4g, and 3g throughout the day. Screen brigtness set to 40%.

I'm getting a good solid 10-14 hours of use. I'll get 6-8 hrs if I'm pretty much using the phone nonstop.
Have you guys tried the battery calibration app from the market? A fellow xda member made it and it resets your battery scripts (needs root). I just did it this morning before I unplugged the phone since I flashed a new rom.
Battery life on this phone is so much better than the evo 4g. Stock battery life on this phone rivals my evo 4g with 3500mAh extended battery!

Impressive battery life

I have been very impressed with the battery life I've been getting on my Nexus. the talk time has been much higher than any phone I've owned. Here are a few screenshots of my battery life. These two days are pretty much my normal day (lol yeah I talk a lot on the phone).
The first post will be the day that about 50% of the time I was on wifi.
The 2nd post will be screenshots from a day of being connected to hsdpa for the entire day (no wifi at all).
My setup: I use push email, facebook sync, auto brightness, gps on, bluetooth on.
Also, when the phone first came I charged it completely then ran the battery down until the phone shut off. I then charged it completely without removing it from the charger.
Below is the day where I was connected to wifi about half the time:

These screenshots show the next day where I used no wifi at all and was connected to hsdpa the entire time.

I have had mine for 2 days, and I have to say it seems to have pretty good life as well, compared to my Atrix and Note. After reading about all the gripes here,
I was expecting the worst. This battery will more than get me through everything I need to do with it in my day, but I suppose it all depends on what you do with the phone.

randypurcz said:
I have had mine for 2 days, and I have to say it seems to have pretty good life as well, compared to my Atrix and Note. After reading about all the gripes here,
I was expecting the worst. This battery will more than get me through everything I need to do with it in my day, but I suppose it all depends on what you do with the phone.
Click to expand...
Click to collapse
Coming from a G2x with a terrible 10 hour battery life, anything I get out of this is freaking fantastic compared to it! I Just wish the devs start getting out some UVed kernels so I can make it longer through the day! I consider myself a heavy user/texter (girlfriend ) and so I'd like to get through the whole day (~18 hours) without a charge I must say, I got to 16 hours yesterday and I was really pleased with that, never had a stock rom last so long without any tweeks!

this is my battery life after first day ....
Not to shabby haha
Sent from my Galaxy Nexus using xda premium

mysterioustko: I think you're usage is a bit different to the average user. With all that talk time you're using the screen a lot less. It seems the screen sucks a lot of power, and if you're not using it often a full charge lasts 4 to 6 hours longer.

MattSkeet said:
this is my battery life after first day ....
Not to shabby haha
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Yeah that's pretty strong battery life.
kam187 said:
mysterioustko: I think you're usage is a bit different to the average user. With all that talk time you're using the screen a lot less. It seems the screen sucks a lot of power, and if you're not using it often a full charge lasts 4 to 6 hours longer.
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Click to collapse
I typically average between 1-2 hours of screen time on an average day. But I talk A LOT each day lol. I'm impressed with the talk time because I've yet to see a phone besides this one that can go 6 hours of talk time in the real world when connected to hsdpa. Also, if you think about it, 1.5 hours of screen time is decent use. It's not a massive amount of use, but it's definitely not like it's getting no use. All in all I have been pleased with the battery life.

I don't know about you guys but im very disappointed in the battery life. With wifi turned on the entire day and no calls, just browsing and chatting on google talk, i got 3 hours 54 mins of screen on time before the phone reached 12% battery. I think thstss pretty horrendous. I was hoping for 7 hours or something of on screen time. My galaxy tab 10.1 has spoiled me i guess. Illl live with it because theres no other android phone im aware of that will give me more, but im kinda bummed about it.

My iPhone 4 has insane battery life... I cant imagine having less. Hopefully they sell larger batteries + backplates for the Galaxy Nexus?

ksc6000 said:
I don't know about you guys but im very disappointed in the battery life. With wifi turned on the entire day and no calls, just browsing and chatting on google talk, i got 3 hours 54 mins of screen on time before the phone reached 12% battery. I think thstss pretty horrendous. I was hoping for 7 hours or something of on screen time. My galaxy tab 10.1 has spoiled me i guess. Illl live with it because theres no other android phone im aware of that will give me more, but im kinda bummed about it.
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Click to collapse
Same here tbh. And the really frustrating part is, I only have 2G where I live so I was hoping to see really great battery life. Hasn't been the case so far though.
However having said that, just last night I flashed XXIK6 and while it's still very early to say for sure, it "appears" that battery life has significantly improved for me. Currently sitting on 91% after 3.5 hours with very, very light usage, IE: 15-20 mins screen on, 15 min phone calls, etc. Nothing to write home about sure, but way way better than before. It would normally be around 80% by now.
It's really sad when the very first thing you do after unlocking your phone is to go into setting to check your battery. Wish I could stop obsessing and enjoy this marvelous device without having to worry about it.

What did you guys do after getting the phone.
Did you charge it all the way to full before use, use and charge at the same time, or let it discharge all the way and then charge it to full?
Thanks.

I would have to say that the GN has the best battery life of any of my previous android phones. (G1, N1, Sensation) These things are very subjective though.

vapotrini said:
Same here tbh. And the really frustrating part is, I only have 2G where I live so I was hoping to see really great battery life. Hasn't been the case so far though.
However having said that, just last night I flashed XXIK6 and while it's still very early to say for sure, it "appears" that battery life has significantly improved for me. Currently sitting on 91% after 3.5 hours with very, very light usage, IE: 15-20 mins screen on, 15 min phone calls, etc. Nothing to write home about sure, but way way better than before. It would normally be around 80% by now.
It's really sad when the very first thing you do after unlocking your phone is to go into setting to check your battery. Wish I could stop obsessing and enjoy this marvelous device without having to worry about it.
Click to expand...
Click to collapse
Yeah, and I don't want to lose the thinness of this gorgeous phone with an extended battery, but 4 hours of screen on time? Anyways, can you let us know how that radio works out, I'm not expecting much, but still curious. If it is noticeably better, I will try to unlock+root this phone. I'm just a little scared to brick this 700$ device.

I'm just waiting for mod of web browser that will invert colours. Black backgrounds and white text ...that would extend battery life significantly. I swapped colours on xda app and pulse reader only browser left ha ha
Sent from my Galaxy Nexus using xda premium

The inverted colours app is already there isn't it? I saw it when I was fiddling about with the browser settings before
Sent from my Galaxy Nexus using XDA App

I think the battery life is spot on. Last phone, Nokia 5800 would last 8-10 hours max on stand by!!!!
Sent from my Galaxy Nexus using Tapatalk

Faz20 said:
The inverted colours app is already there isn't it? I saw it when I was fiddling about with the browser settings before
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Yup, it's under accessibility in browser settings. Great if you read mainly text-only sites since it inverts image colours as well

2-3% per hour idle
I did a benchmark this afternoon for about 8 hours.
ITL41F rom, rooted + dcm kernel, otherwise stock. bluetooth, HSDPA, 1 gmail sync, and a few background sync that is very light.
idle the phone in home for 8 hours. the battery drops about 2-2.5% per hour consistently.

how long does it last with 'constant use' though?... from fully charged, to then having the screen on the whole time & doing web browsing, video watching, downloading, etc... (with data on, not wifi)

voxigenboy said:
how long does it last with 'constant use' though?... from fully charged, to then having the screen on the whole time & doing web browsing, video watching, downloading, etc... (with data on, not wifi)
Click to expand...
Click to collapse
with data screen straight you may get 4-5hours. With wifi probably 6 tops.
sent from outside big and inside small.

Screen killing battery

hello my phone doesnt last 1 day of charge and it says 40% is due to display/screen can anyone help me?

alvespt said:
hello my phone doesnt last 1 day of charge and it says 40% is due to display/screen can anyone help me?
Click to expand...
Click to collapse
You can lower your brightness if it is not already at the lowest setting.

Unfortunately, the galaxy nexus has poor battery life. You could also try turning off data when you don't need it.
Sent from my Galaxy Nexus using Tapatalk

the screen is at lowest and it doesnt make sense turning of data if the problem is from screen right?

I'm having the exact same issue. Screen is totally eating up my battery life. It took 30 minutes for the battery to go down by like 10%. And the screen is 40% of the battery life issue.

Arrio said:
Unfortunately, the galaxy nexus has poor battery life.
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Click to collapse
Maybe I just don't use the screen as much as you, but I don't find this to be true for me. I find it has great battery life. I don't sit for hours with the screen on, but I do regularly text and check emails throughout the day, do a bit of web browsing, take some calls, and play some Angry Birds or other games in the evening. The screen is always at the top of the list for battery usage, but even on an extreme day I still have more than 30% battery left by the time I go to bed. I throw it on the charger and I'm ready to go again in the morning.
I disagree that the Galaxy Nexus has poor battery life, in general. I would argue that: all high-end phones have "poor" battery life because of all the things they do (especially 720p screens), your personal use of it consumes a lot of power and you could benefit from an extended battery, or you have a faulty device.

hi there, i do that exact same things with no games, so less usage but i get less than a day... i love the phone but the batery is just no working...

I don't understand why people don't get that when you have a screen that is 4.65'' it will destroy the battery life. My screen use is always at 60% or more but yet I still get good battery life. The screen is going to use the majority of your battery when compared to other things, that's just how it is.

sorry but thats not the point, when you pay 700 for a top phone, that is suposed to be the google experience to carry arround wiith you and you can only get 10 hours of battery time something went wrong in the process...

Most phones are $600 to $700, and name one 4g phone that will last more than 10 hours with moderate use and no extended battery, just not going to happen. You need to reset your expectations.

GN battery is giving lots of trouble, too. I picked up the phone from charge and it was 100% charged. ! hour of usage with 3g on. Usage includes 1 hours or music and reading of pdf books simultaniously and battery is dropped to 61%.

alvespt said:
sorry but thats not the point, when you pay 700 for a top phone, that is suposed to be the google experience to carry arround wiith you and you can only get 10 hours of battery time something went wrong in the process...
Click to expand...
Click to collapse
I think you should take a look at every other android phone that has come out with the same specs in the last year. Everything from the EVO 3d to the thunderbolt have their default battery's not last more than around 6-8 hours with constant use because of the screen & processors.
THis is why Verizon offered the extended batteries at a discounted rate right off the bat, because default batteries have never ever lasted that long in topof the line smartphones. FFS the new iphone 4s I've heard from a friend that their phones don't even last 24 hours.
I have a galaxy nexus, and mine has lasted... let me see.. one sec...1 day 3 hours and 25sec's with 35% left. (of course I have the extended battery) but here's the kicker: the extended battery has basically the same back as the regular phone does. so if they so desired, verizon could technically put out another extended battery just like all the rest of the phones, but they might not do that. I'm content with the battery life as it is almost identical as the droid X from which I came. The only difference is since I have a lot of un-updated apps for ice cream sandwich one of them is using "mediaserver" A LOT. I'm talking about that being the top of my battery draining with the screen being second. They both have taken ~20% with android OS itself taking 13, PlayerPro taking 13, and other random things like calls and txt msging taking ~10% each.
So I would suggest not trying to watch a lot of stuff on your phone while on battery, or don't expect your battery to survive long while watching stuff on that great screen

hymn thanks for the feedback so the only solution I see would be to go for a bigger battery. I'm from Portugal were could I buy one and whays the power?
Sent from my Galaxy Nexus using Tapatalk

If your screen usage is less than 50%, it be more worried about what else is killing your battery........

Overnight battery drain

I thought I would check and see how much battery is used overnight on my Nexus. What I found was that the Android OS kept the device awake over half the time. Also, for some reason the phone used battery as well.
I'm running stock 4.0.2, rooted and unlocked... is this typical?

Yes, this is known bug:
http://code.google.com/p/android/issues/detail?id=22878
Don't forget to star that issue ...
And tell all your neighbors ... all your friends to star it as well.
Spread the word ... tell the universe ...
Google must fix this!

Hey Guys -
I shut off location services and my battery drained only 9% in 8 hours of non use last night... It used to be around 25%. I'm thinking that Android keeps waking to check where you are... Just shutting off GPS is not enough as it will wake to find your location via wifi or cell towers.
Just my 2 cents. Give this a try to see if that helps you guys out. Google still needs to fix this but it might be a good temporary workaround.
Rob

I typically see around 8-10% battery drain overnight off the charger. And I thought I had problems. If you are losing 25% over night that seems unacceptable.
Sent from my Galaxy Nexus using XDA App

tk123456789 said:
I typically see around 8-10% battery drain overnight off the charger. And I thought I had problems. If you are losing 25% over night that seems unacceptable.
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
It actually dropped from 100% to 24% overnight which is almost 10% per hour.

i lose 1% in 1.5hrs, on standby in ATT HSPA+ network, i thought that was pretty good.

gogol said:
Yes, this is known bug:
http://code.google.com/p/android/issues/detail?id=22878
Don't forget to star that issue ...
And tell all your neighbors ... all your friends to star it as well.
Spread the word ... tell the universe ...
Google must fix this!
Click to expand...
Click to collapse
Roman has fixed it or at least it appears he has. I loaded his CDMA rom "[ROM] [AOSP] Android Open Kang Project - toro build 9 [Dec 21]" over at rootz and it is putting the phone to sleep when the screen is off. My phone had be staying awake 30 - 50% of the time prior to this. I've only had the rom loaded a short time, but in the last 40 minutes of non-use my Staying Awake time has been about 2 minutes. YMMV
Good luck.

Geezer Squid said:
Roman has fixed it or at least it appears he has. I loaded his CDMA rom "[ROM] [AOSP] Android Open Kang Project - toro build 9 [Dec 21]" over at rootz and it is putting the phone to sleep when the screen is off. My phone had be staying awake 30 - 50% of the time prior to this. I've only had the rom loaded a short time, but in the last 40 minutes of non-use my Staying Awake time has been about 2 minutes. YMMV
Good luck.
Click to expand...
Click to collapse
Thanks for the reply... that's encouraging to hear. I'd like to stay stock for a while so hopefully 4.0.3 drops soon!

I know many people recommend rooting and using a custom rom, but I've had a poor experience with that. Having said that, I've been working on battery issues and this is a picture of my battery drain overnight. It basically took a nosedive.
What I don't understand is some people are getting great battery life from this phone. I've turned off all my widgets and followed many recommendations - but frankly I shouldn't have to do any of that and even so my battery life is abysmal.
Is there any answer to this problem short of rooting? Do I have any reason to believe that google will acknowledge and correct this issue?
By the way I had a Droid Razr for a month prior to the Nexus, and it would lose no more than 10% of it's battery overnight.

I do everything "wrong" (syncing, gps - wifi - data on) I have 5 widgets on my home screens and I loose less than a % per hour over night if not on the charger.
When I am using my phone I keep the screen on full brightness. This will get me about 12 hours of use with 4 hours screen on time.
I have no idea why some people get great battery life and others don't. There must be bugs floating around. Lets see what 4.0.3 brings. I'm unlocked and rooted but still stock.
Sent from my Galaxy Nexus using xda premium

That's the frustrating thing - it's working great for some people.
I have to return mine because the headphone jack doesn't do stereo, maybe I'll get lucky and the new one won't have signal and battery issues.
The Razr never dropped voice or data - the Nexus drops both multiple times during the day.

McDeadagain said:
That's the frustrating thing - it's working great for some people.
I have to return mine because the headphone jack doesn't do stereo, maybe I'll get lucky and the new one won't have signal and battery issues.
The Razr never dropped voice or data - the Nexus drops both multiple times during the day.
Click to expand...
Click to collapse
I would try a different radio. I wasn't exactly thrilled with reception at first. A North American radio changed that. But i would still give moto a step up on reception.
I think more people should also consider congestion in their city to how well battery life does. Can Make a big difference. Otoh though, that doesn't account for standby at night when you're asleep. It would seem to me no matter how your phone is setup 1% an hour should be the norm, unless your phone downloads a lot of data.
My grandma beat me down and took my nexus. Sent from a jitterbug with beats by dre.

McDeadagain said:
That's the frustrating thing - it's working great for some people.
I have to return mine because the headphone jack doesn't do stereo, maybe I'll get lucky and the new one won't have signal and battery issues.
The Razr never dropped voice or data - the Nexus drops both multiple times during the day.
Click to expand...
Click to collapse
Ya, try swapping it, IDK... I have yet to drop a single call on my Nexus. One thing i can say is Samsung needs to look at their quality control. I definitely got a good one. I don't see the REAL problems others are having. The fact that most phones are fine, and some are duds is the one thing i will hold against Samsung. Gives a really good phone a bad name when so many have issues.
I can say its not all of them.

McDeadagain said:
I know many people recommend rooting and using a custom rom, but I've had a poor experience with that. Having said that, I've been working on battery issues and this is a picture of my battery drain overnight. It basically took a nosedive.
What I don't understand is some people are getting great battery life from this phone. I've turned off all my widgets and followed many recommendations - but frankly I shouldn't have to do any of that and even so my battery life is abysmal.
Is there any answer to this problem short of rooting? Do I have any reason to believe that google will acknowledge and correct this issue?
By the way I had a Droid Razr for a month prior to the Nexus, and it would lose no more than 10% of it's battery overnight.
Click to expand...
Click to collapse
Thats just horrible idle drain. Something kept it awake you can see.
I feel bad cause my gsm version is literally the best idle drain phone ive ever had. It stays dead flat for me and last night i lost about 1% every 2 hours, and tgat is witg data on and two gmail syncing etc. Its just awesome. I think there is something wrong with tge verizon model. My phone is stock too.

McDeadagain said:
I know many people recommend rooting and using a custom rom, but I've had a poor experience with that. Having said that, I've been working on battery issues and this is a picture of my battery drain overnight. It basically took a nosedive.
What I don't understand is some people are getting great battery life from this phone. I've turned off all my widgets and followed many recommendations - but frankly I shouldn't have to do any of that and even so my battery life is abysmal.
Is there any answer to this problem short of rooting? Do I have any reason to believe that google will acknowledge and correct this issue?
By the way I had a Droid Razr for a month prior to the Nexus, and it would lose no more than 10% of it's battery overnight.
Click to expand...
Click to collapse
Is it related to wifi? Noticed most of your drain was while wifi was off.
My grandma beat me down and took my nexus. Sent from a jitterbug with beats by dre.

I just tried a new ROM last night and had an improvement with my phone sleeping more of the time the screen was off yet the battery drain doubled to 3%/hour. Can someone explain how that makes sense? My phone slept 10 of 11 hours during this time. And the CPU was scaled down at 350 mhz by the kernel the entire time while the screen was off. So confused...
Sent from my Galaxy Nexus

Might need to calibrate battery.
My grandma beat me down and took my nexus. Sent from a jitterbug with beats by dre.

105437 said:
I'm running stock 4.0.2, rooted and unlocked... is this typical?
Click to expand...
Click to collapse
i have the same setup and loose less than 1% an hour, when the phone is idle

Thanks to the kind folks who have replied with questions, comments, or just sympathy
There are of course a lot of threads in this forum related to the Nexus battery life and I've been trying to do my own due diligence. I have removed every widget from the phone - even those which are just 'switches' and should not make any data requests. It was still draining.
Then I removed the fancy Light Flow lite app that gave me pretty notification lights - still drained.
Finally, I removed Battery Monitor Widget - the very app I was using to try to find the cause of my drain.
Took the phone off the charger at about 10:30 this morning. Used it for navigation for 20 minutes, ran the bluetooth for a bit and that took quite a bit off the battery. However, when I got home I forgot to turn the wifi on and set the phone down. Sitting there doing nothing connected to 4g the battery dropped less than 10% over three hours. I didn't look closely enough to see the exact numbers but overall I'm at 60% now after 6 hours of what I would call moderate use.
Most importantly, the phone seems to actually sleep now when not in use. I don't mind if the battery drops a bit faster during use - it has a great screen and wicked fast 4g. I just don't want it to tank when it's not doing anything.
For right now, it's acting exactly how I would expect and I'm very pleased. Will probably give it another day and then try to add back my beautiful widgets time/weather/calendar widget on the home screen and see what kind of damage that does. Maybe try a different battery widget as I like the percent left in the notification bar.
Good thing is, now I have a baseline that I'm happy with to measure my performance from.
Thanks again for those who've posted in this thread. Hope anyone else having similar issues might benefit from my experience.

And I'm right back where I started. Phone had insomnia last night. I took it off the charger at 100% last night at midnight and it died within five hours sitting on my night stand.

Ughh battery drain definitely too fast.

I feel like I make a thread for each phone I go through. First Blackberries, then Droid X, now Galaxy Nexus.
I am getting pretty horrible battery drain that is definitely worse than others' Nexuses. I have gone to the extended battery now for a few days, yet in the morning, when I unplug from charger (says 98% but charged?), with brightness only a quarter of the way up from lowest, I can literally watch the percentage (battery number mod in corner) drop one-by-one each minute or a few...So if I am actually using the phone, you can imagine it drops pretty fast. Yesterday, with very very moderate use the phone was still dead within 5-6 hours. It was at the mid-80s within an hour or more. Again, with moderate use.
It is stomach-dropping watching the percentage number just go down and down. Yet my friend's Gnex using the extended battery his first day did not hit 85% yesterday until 5+ hours later. The battery stats page on mine shows nothing with high numbers except Screen and Android OS, so I assume no apps are draining it. I am rooted with unlocked BL, on bigxie's deodexed ROM with softkeys mod, battery percentage mod, and power menu mod. I have 100-something apps and many widgets but no battery draining/updating ones. Others with the same ROM report fine battery.
I believe after using the ext. battery for a couple days, it should be "conditioned" if needed at all, yet I see no improvement.
I'm getting very angry watching this drop.. For example, 40 minutes off the charger with almost NO use except for turning the screen on here and there, I am at 94% battery with Screen at 46%, Android OS at 34%, Phone Idle 11%, Cell Standby 9%, and Android System 2%.
And then 1 hr 20 min in, at 88% battery with 55% Screen, 27% Android OS, 6% Phone Idle, 6% Cell Standby.
This doesn't sound normal right? Keep in mind, those numbers are with almost no phone use..very minimal settings menus visited and one update from Market.
Jesus, literally almost every time or two I turn the screen on just to check these numbers, I see the damn battery percentage drop a number. Not even using the phone how/as much as I normally would be. This is infuriating. Luckily, it doesn't seem to drain much with the screen off.

Quit checking and wait til the bug is fixed and blood pressure stabilizes?
Crazy world, ay?

Update to 4.0.2 or 4.0.3 with an improved kernel = success.
Use the phone for 1-2 weeks to stablize battery life - mine is better now than it was when I began using it. But the kernel/rom makes a big difference.

Thanks. Any suggestions on with combo to use now? 4.0.3 preferrably I guess.
Then why does my friend on totally stock 4.0.2, non-rooted have that great battery life from the first day using the extended battery?? I'm pretty much basing mine off of his and other's who are getting ridiculously long life. I never understood how it varies SO much. We should all have the same relative to usage.

just4747 said:
Thanks. Any suggestions on with combo to use now? 4.0.3 preferrably I guess.
Then why does my friend on totally stock 4.0.2, non-rooted have that great battery life from the first day using the extended battery?? I'm pretty much basing mine off of his and other's who are getting ridiculously long life. I never understood how it varies SO much. We should all have the same relative to usage.
Click to expand...
Click to collapse
No. Because no two phones are set up the same. Too many variables to say relatively same usage. For instance, when i go to bed i get 2-3 hours standby per percentage point. Not everybody is going to get that.
Crazy world, ay?

@rbiter said:
No. Because no two phones are set up the same. Too many variables to say relatively same usage. For instance, when i go to bed i get 2-3 hours standby per percentage point. Not everybody is going to get that.
Crazy world, ay?
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Click to collapse
Maybe, but the fact that I have no other visible outstanding draining factors, and I get no 4G at home and therefore have it set to CDMA only...I should not be seeing 1% drops almost every time I turn the screen on for more than 30 seconds. Especially with an extended battery.
God forbid I want to use GPS or 4G.

More battery life threads please.

case0 said:
More battery life threads please.
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Click to collapse
Wow, really? At first glance in all sub-forums I saw about two, if that. I have a legitimate concern, especially when my friend is getting about 4 times better life. Thanks for your help though in the device forum where this 'doesn't belong'.
..And over the course of only a few minutes of the screen being on maybe twice and sending one email, I saw it go from low 82-83 down to 77. ****ing awesome.

just4747 said:
Wow, really? At first glance in all sub-forums I saw about two, if that. I have a legitimate concern, especially when my friend is getting about 4 times better life. Thanks for your help though in the device forum where this 'doesn't belong'.
..And over the course of only a few minutes of the screen being on maybe twice and sending one email, I saw it go from low 82-83 down to 77. ****ing awesome.
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Click to collapse
You probably have a misbehaving app. Download better battery stats from the android apps and games section here at xda and let it run for a day or so and see what processes are being used the most and what your wakelocks are, etc.
Also, find a 4.0.3 rom with a kernel that can be undervolted and try that out.
Sent from my Galaxy Nexus using xda premium

joshnichols189 said:
You probably have a misbehaving app. Download better battery stats from the android apps and games section here at xda and let it run for a day or so and see what processes are being used the most and what your wakelocks are, etc.
Also, find a 4.0.3 rom with a kernel that can be undervolted and try that out.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Thank you, downloading now and will check it out.

I'll admit I'm using the GSM version so my experiences may not apply but for the first few days my battery life was utter crap.
Its been MUCH improved over the last few days, I dont have the wakelock issue and with the screen off the battery drain is literally only about 3% per hour, and thats with background data on.
YES, the screen DOES use a lot of battery, it isnt really avoidable and is somewhat expected with a 720p 4.6 inch super AMOLED screen.
The one thing I can recommend doing is finding a modded kernel and undervolting that CPU - It seems they've been really rather generous providing power to the thing, I've been able to take off at least 100-150mv across the board.

Antzor said:
I'll admit I'm using the GSM version so my experiences may not apply but for the first few days my battery life was utter crap.
Its been MUCH improved over the last few days, I dont have the wakelock issue and with the screen off the battery drain is literally only about 3% per hour, and thats with background data on.
YES, the screen DOES use a lot of battery, it isnt really avoidable and is somewhat expected with a 720p 4.6 inch super AMOLED screen.
The one thing I can recommend doing is finding a modded kernel and undervolting that CPU - It seems they've been really rather generous providing power to the thing, I've been able to take off at least 100-150mv across the board.
Click to expand...
Click to collapse
This - My battery on the stock battery on GSM sucked first few days, and I was really concerned I made a poor purchase. But with the screen on probably 5 or 6 hours of my work day it lives through the day and just enough to get home after that. I can charge it at work too, which I usually do. On my day off it survived 18 hours and still had ~20% battery life left on 4.0.3 AOKP/Francisco.Franco Kernel

From my experience, the battery life isn't bad. I did install the "extended" battery as soon as I bought the phone but is isn't much bigger than the stock battery. I am on stock rooted 4.02. With LTE off I use about 2% per hour in standby. With LTE on it is almost double that (3-4%/hour). I have several widgets running and gps enabled. (wifi when available) I can easily get a 16-18 hour day and have 50% remaining when I go to bed unles I sit around gaming for a couple hours.
I may try a new ROM tonight but I expect it will probably make things worse.

Im running a bone stock setup and im getting 12 -14 hours a day... normally I read posts like the one skiddingus posted and wonder why I never can achieve those readings so i feel your confusion . I do have 4g on and gps off screen is about 1/4 of the way up brightness wise