Develop Bugs

My - Battery Sucks -

I have to charge it twice a day, and my use is for only couple of hours talking and few browsing.
I tried that with stock as well as
[ROM] cwm-Phantom-X-
is anyone else also experiencing the same?

a few hours being like 10 hours straight talking?

You're crazy. This battery is the best I've seen in a long time.
____________________
Deebo took your bike too?

im getting 12 hours with normal use and 8-9hours with very very heavy use(basically on my phone all day non stop)

I can drain a battery in 6 hours or less. I can't make it through a 8 hour work day without charging it. I guess you guys that go 12+ hours on a charge aren't power users. I tried every rom and kernel and my results are exactly the same.

Maybe the people who are complaining about battery life came from a flip phone or a blackberry. As far as smartphones go, this is the best you'll find for the features and enormous screen we have. Don't believe me then get an Amaze, Sensation, myTouch 4g Slide or G2x.
Sent from my SGH-T989 using xda premium

jessejames111981 said:
I can drain a battery in 6 hours or less. I can't make it through a 8 hour work day without charging it. I guess you guys that go 12+ hours on a charge aren't power users. I tried every rom and kernel and my results are exactly the same.
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Click to collapse
this is exactly what I am talking about.
Before I had HTC G2 and same amount of use it last for whole day (around 12+ hours) but this one hardly goes upto 7-8 hours with one charge...
I did the battery wipe with full charge, if that makes any difference.

jessejames111981 said:
I can drain a battery in 6 hours or less. I can't make it through a 8 hour work day without charging it. I guess you guys that go 12+ hours on a charge aren't power users. I tried every rom and kernel and my results are exactly the same.
Click to expand...
Click to collapse
I drain mine in 6. But i'm on it constantly. That's damn good for a phone like this.
____________________
Deebo took your bike too?

Getting 24 hrs+ with a custom rom, juggernaut....
Sent from my SGH-T989 using xda premium

I dont know bout anyone else... but the only battery problems ive experienced is the fact that ive become so damn lazy on keeping the phone charged.
The battery lasts so long that i forget to charge it, and then i run out of battery

I'm a heavy user literally all I do is watch 1080p movies and plays games on my phone. I get twelve to fourteen hours every day. I also get at least a text every fifteen minutes if not more. Maybe the developers didn't remove career ciq which bogs down performance and drain the battery. You can also try a different kernel.
Sent from my SGH-T989 using xda premium

don't forget that in areas where you have crappy signal, you phone pumps up the power to try and compensate. you may notice your phone heating up in your pocket too. If you have no signal at all, i weep for your battery life.
go into airplane mode to save juice.

I too get 24 hours or more from light to moderate use with juggernaut.
Heavy use still nets me at least 10 hours. Although I toggle things off if I remember and don't need them. Like wifi, data, auto bright, sync, etc. although WAY lead important with this phone than it was with vibrant running cm7.
Sent from my SGH-T989 using XDA App

I had some weird battery drain with the stock rom. I couldnt get more than 5 hrs with light usage or heavy usage. I flashed streamlined (a mostly stock rom) from teshxx and im back to having 9-10hrs of battery life with moderate to heavy usage (3hrs of on screen time)
Sent from my T-Mobile Galaxy S II 4G

I have a 12-14 hour work day and I have 25-35% battery life left when I get home, heavy usage. Best stock battery for Android I've ever had. This is my 8th Android phone.
Sent from my SGH-T989 using xda premium

shyboy1 said:
this is exactly what I am talking about.
Before I had HTC G2 and same amount of use it last for whole day (around 12+ hours) but this one hardly goes upto 7-8 hours with one charge...
I did the battery wipe with full charge, if that makes any difference.
Click to expand...
Click to collapse
Why don't you try adding another core to your G2 and see if you can even get 6+ hours!!!
Cmon man, this is a dual core phone...it's just common sense that it will use twice as much battery power to get it to run smoothly.
But honestly, I was able to get 21hrs out of a full charge. With heavy use but i had it UC'd @ 1.2max and 192min. Still ran pretty smooth tho.

I get about 18 to 20 hours from a full charge. Stock. Non-rooted, and no modifications of any kind. I have all my apps auto-sync every 4 hours, and my usual display "on time" is around 4 to 5 hours. Here are some screen shots. This is the best battery life I ever had.

Just to add. My brightness is at 40%

is it better to use autobrightness on our device or a set brightness setting to save battery?

immunityx said:
is it better to use autobrightness on our device or a set brightness setting to save battery?
Click to expand...
Click to collapse
I'd say set it to certain level. Having the phone constantly adjust I would think would use more battery.

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?
Click to expand...
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.
Click to expand...
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

[Q] Battery life

Lately my Gnex's battery life has gotten pretty bad. Yesterday I had 25% battery left, while the screen-time was 2 hours and 30 minutes (it has been like this for a while now). I used to have at least 3,5 to 4,5 hours of screen-time on one charge. And, yes, I've tried to change ROM several times, with no effect. Maybe it would help to buy a new battery?
Thanks

olfyboy said:
Lately my Gnex's battery life has gotten pretty bad. Yesterday I had 25% battery left, while the screen-time was 2 hours and 30 minutes (it has been like this for a while now). I used to have at least 3,5 to 4,5 hours of screen-time on one charge. And, yes, I've tried to change ROM several times, with no effect. Maybe it would help to buy a new battery?
Thanks
Click to expand...
Click to collapse
That's actually decent battery life on this phone. Second of all. Screen on time doesn't really mean anything. It depends on what your doing with your phone i.e web browsing, Pandora streaming. both use data/wifi, but only one has the screen on the entire time during use. There's a great thread in the general section about how to improve battery life, but the best way, is by buying an extended battery. What I have done is simply bought a slim extended battery, and external battery charger, so I can switch batteries whenever my phone is about to die.
Sent from my Galaxy Nexus using Tapatalk 2

Try to use Trinity Kernel or Stock Kernel.

I think it could be the newest Google search update. I have a ton a screen off wakes and that's the only thing I can think of that's causing it.

[Q] Battery drain 1% per minute is this normal?

Just picked up a used GNex and thought everything was great until i started using it. I have a regular and an extended battery both exhibiting near instantaneous battery drain til it gets down to about 70 - 60 percent and slows down a little. disabled auto rotate and GPS with brightness turned all the way down. using liquidsmooth and also reverted to stock- rooted with same results.
All in all from full charge to completely drained I get about 6 hours with light to moderate use. It takes about 6 - 7 hours to charge as well.
I knew the Gnex was a battery eater but this seems a little much.

how much screen on time do you get? i assume CDMA/lte gnex?

simms22 said:
how much screen on time do you get? i assume CDMA/lte gnex?
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Click to collapse
yes, VZW phone. I don't know what you mean by screen on time, how do I check that?
Also wanted to mention that I did wipe batterys stats when flashing and with liquid the default lean kernel settings
another thing I noticed is when charging the batter goes from 100% to 99% pretty frequently.
Like I said I'm new to the GNex but this kind of battery life actual makes me want to go back to the TBolt.

smerfherder said:
yes, VZW phone. I don't know what you mean by screen on time, how do I check that?
nevermind, it shows 11s right now because i just plugged it in.
Click to expand...
Click to collapse

you check your screen on time by going into settings, then battery, then tap/click on the screen. then you'll see the screen on time. since you are using 4.1 JB on LTE device, I don't think the battery life would be that good, but we need to know the screen on time to know if there is a problem or if it's normal

using it heavy for 6 hours total battery time and getting 3-4.5 hours screen on time is normal. using it lightly for 6 hours total battery time and getting 1 hour of screen on time is not normal. heck, i get great battery life, but i can kill my battery within 5 hours, but ill get 4.5 hours screen on time(gsm gnex).

simms22 said:
using it heavy for 6 hours total battery time and getting 3-4.5 hours screen on time is normal. using it lightly for 6 hours total battery time and getting 1 hour of screen on time is not normal. heck, i get great battery life, but i can kill my battery within 5 hours, but ill get 4.5 hours screen on time(gsm gnex).
Click to expand...
Click to collapse
hate to say it but that probably answers my question. If I had to guess I would say the screen was on most of the time as it is new to me so getting things set up and such. will try some of the tips I found around these parts and report back.

flashed latest official image from Google and got nearly 13 hrs. on battery with nearly 3 hrs screen time while on 3g most of the day.
so I think it is either 4g or maybe something to do with the bootloader which was on ja003 before. IDK but reasonably happy with battery now.

[Q] Question about battery

Is it normal that my battery goes down a percent every 3-4 minutes, just by doing simple things like web browsing?

No. Something is wrong on your end. Check for any apps running the background that shouldn't be running at all.
Sent from my Nexus 4 using Tapatalk 2

Open the battery utility to see what is consuming the highest percentage of power.
The display is one of the biggest power consumers. What level is your brightness at? The new N7 can achieve almost 600 nits. That is ridiculously high. The ipad 3/4 and Mini max out around 400 nits. I've found 200 to be a good compromise between battery life and ease on the eyes.

I have. I even factory restored. The standby time is great but once I start using it the battery just drains like that

I would let the device die completely and charge it up to 100% and use it intensely for a bit and track it. My experience with Android is to let the first few cycles of battery settle in the kernel and all that. Sometimes Unix takes a few days to get acquainted with it's space in my experience.

noxxle said:
Open the battery utility to see what is consuming the highest percentage of power.
The display is one of the biggest power consumers. What level is your brightness at? The new N7 can achieve almost 600 nits. That is ridiculously high. The ipad 3/4 and Mini max out around 400 nits. I've found 200 to be a good compromise between battery life and ease on the eyes.
Click to expand...
Click to collapse
My brightness level is at about 25%

LearnIIBurn said:
I would let the device die completely and charge it up to 100% and use it intensely for a bit and track it. My experience with Android is to let the first few cycles of battery settle in the kernel and all that. Sometimes Unix takes a few days to get acquainted with it's space in my experience.
Click to expand...
Click to collapse
I've done like 5 cycles already. It just sucks cause I see people getting 8-11 hours of screen time and I only get 4-5.

Steven2197 said:
I've done like 5 cycles already. It just sucks cause I see people getting 8-11 hours of screen time and I only get 4-5.
Click to expand...
Click to collapse
I have about 5 hours on actual screen on time right now and I'm at 38% and 13h since I pulled it off the charger. Mine tends to drop a lot when using Facebook and playing games, cause they're memory hogs. I can listen to music and go on reddit for probably an entire day and it'll get 10 hours.
Sent from my Nexus 7 using Tapatalk 2

Steven2197 said:
I've done like 5 cycles already. It just sucks cause I see people getting 8-11 hours of screen time and I only get 4-5.
Click to expand...
Click to collapse
I got battery issues as well only 5 hours of on screen time........ You can get "Better battery stats" free from Xda, but I can tell you I've checked and nothing is running in the background, deep sleep is good but it dies after about 5 hours of using it. It's looking like some units are shipping with a defective battery. I don't see a lot of people reporting this though.
Here is the link to the free battery stats
http://forum.xda-developers.com/showthread.php?t=1179809
Sent from my Nexus 7

snipe2nite said:
I got battery issues as well only 5 hours of on screen time........ You can get "Better battery stats" free from Xda, but I can tell you I've checked and nothing is running in the background, deep sleep is good but it dies after about 5 hours of using it. It's looking like some units are shipping with a defective battery. I don't see a lot of people reporting this though.
Here is the link to the free battery stats
http://forum.xda-developers.com/showthread.php?t=1179809
Sent from my Nexus 7
Click to expand...
Click to collapse
I've already done that and nothing is running in the background. This sucks I guess I'll go return it tomorrow for a new one.
It just sucks because other than the battery issue this device is perfect no light bleed issues or nothing

Also does your battery sometimes skips percentages? Because mine does

Steven2197 said:
I've already done that and nothing is running in the background. This sucks I guess I'll go return it tomorrow for a new one.
It just sucks because other than the battery issue this device is perfect no light bleed issues or nothing
Click to expand...
Click to collapse
Yep exactly, no other issues on mine. I really don't want to get another one with all kinds of other issues......... At least you and me know the other issues to look for, kinda sad......
Sent from my Nexus 7

snipe2nite said:
Yep exactly, no other issues on mine. I really don't want to get another one with all kinds of other issues......... At least you and me know the other issues to look for, kinda sad......
Sent from my Nexus 7
Click to expand...
Click to collapse
Most of the battery issues I've seen have all had the 5 hour screen on time problem, I don't know I just find that really weird but oh well

I'm also getting average of 5hrs screen on time. Nothing is draining the battery as far as I can tell. Today for instance I took it off the charger and went out. 7hrs later it had 96% with 6 minutes on screen time. It's at 13hrs on with 5 hrs on screen time mostly chrome, Twitter, instagram, Google+, quick games of words with friends and draw something 2 five minutes each game max if that. I would kill for anything close to 7hrs let alone 9hrs. Also the touch sensitivity goes bonkers often with my Nexus registering touches pretty far from where my finger is. I think I might just try and exchange it. Brightness at 20% maybe.
Sent from my SGH-M919 using Tapatalk 2

I have a battery drain issue with my new nexus 7. it cost 25%-30% battery overnight while i was sleeping. so i decided to factory reset it, and not installing any apps to test its standby time. it still cost ~20% battery overnight. Is it a defective product or it's a software issue? Maybe i should return it for a new one

supersc123 said:
I have a battery drain issue with my new nexus 7. it cost 25%-30% battery overnight while i was sleeping. so i decided to factory reset it, and not installing any apps to test its standby time. it still cost ~20% battery overnight. Is it a defective product or it's a software issue? Maybe i should return it for a new one
Click to expand...
Click to collapse
Return it. There's no way you should be draining that quickly just in standby.
Sent from my Nexus 7 using Tapatalk 2

picachux said:
I'm also getting average of 5hrs screen on time. Nothing is draining the battery as far as I can tell. Today for instance I took it off the charger and went out. 7hrs later it had 96% with 6 minutes on screen time. It's at 13hrs on with 5 hrs on screen time mostly chrome, Twitter, instagram, Google+, quick games of words with friends and draw something 2 five minutes each game max if that. I would kill for anything close to 7hrs let alone 9hrs. Also the touch sensitivity goes bonkers often with my Nexus registering touches pretty far from where my finger is. I think I might just try and exchange it. Brightness at 20% maybe.
Sent from my SGH-M919 using Tapatalk 2
Click to expand...
Click to collapse
I almost have the same exact usage as you and have that touch screen problem too. I guess we don't have defective units

Battery Test
I pulled my new N7 off the charger thsi morning and decided to test the battery because it seemed to be draining too quickly for my taste. I streamed two movies, Star Trek (2009) from Google Play and The Apostle from Showtime Anytime. that is only 4 hours and 20 minutes of movies. My tablet died before the Apostle finished. Had about 20 minutes left on it.
I am not satisfied with this paltry battery life. Google website said it would run 9 hours of movies non stop. 4 hours isn't even close. There are several "comparisons" out there but they only compare what the company said. I am not sure the battery is all it is cracked up to be. I am going to do some further testing but right now it looks like I will forego the New Nexus 7 and pick up a Kindle Fire HD. That battery life does last for hours and for what I need it will suit me fine.
I welcome your comments.

duvious said:
I pulled my new N7 off the charger thsi morning and decided to test the battery because it seemed to be draining too quickly for my taste. I streamed two movies, Star Trek (2009) from Google Play and The Apostle from Showtime Anytime. that is only 4 hours and 20 minutes of movies. My tablet died before the Apostle finished. Had about 20 minutes left on it.
I am not satisfied with this paltry battery life. Google website said it would run 9 hours of movies non stop. 4 hours isn't even close. There are several "comparisons" out there but they only compare what the company said. I am not sure the battery is all it is cracked up to be. I am going to do some further testing but right now it looks like I will forego the New Nexus 7 and pick up a Kindle Fire HD. That battery life does last for hours and for what I need it will suit me fine.
I welcome your comments.
Click to expand...
Click to collapse
Yeah the battery is terrible for some. There's a chance our nexus 7's are defective but maybe a software update will fix it? Who knows

I have same problems. Only about 5 hours screen on time, and it drains quick if I am streaming especially with Netflix.