Develop Bugs

New galaxy nexus user

I got new GN and it is very good but one thing is ruin it and it is battery life example an hour ago I took phone from charger and it was 95 and kept it in my pocket for half an hour and just loses 3 % and then played scramble with friend 4 games and now battery is 77%.
Even my old galaxy s would use less than that
Sent from my Galaxy Nexus

i dont know if this will work, but test this and then let me know if it makes a difference (you'll need to spend a whole day testing this) not just an hour
go to settings -> developer options -> in the apps section at the bottom put a checkmark on "don't keep activities"
then do a comparison
one day with it with normal phone use, and one day without it with normal phone use

I will try it tomorrow
Can you take a look at this and compare it with yours cuz screen is consuming so much
Screen is on manual and lowest brightness and wireless is off and GPS off
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Sent from my Galaxy Nexus

Pictures aren't showing up for me but the battery life is horrid on this thing. The screen is gigantic and beautiful its the trade off we all took
Edit they loaded. Looks like my usage more or less.
Sent from my Galaxy Nexus using XDA

why don't you go a few days and post your usage with normal full-day stats? You can't look at a couple of hours of usage and say it sucks. Also, why are you on EDGE? You're gonna burn more screen sitting waiting for things to load on EDGE than just using HSPA+.
But battery life is a well known "issue". The screen eats battery. Turn off live wallpapers and turn down brightness. Do all of your general battery saving things (turn off WiFi, BT, etc. when not in use) and you'll see battery life improve.
The most you can expect with "normal" (which is suggestive) usage is probably 18 hours total with 3.5hrs screen on. More than likely something like 13-15 hours.

What about custom roms is there any custom rom that has better battery
Sent from my Galaxy Nexus

snab321 said:
What about custom roms is there any custom rom that has better battery
Sent from my Galaxy Nexus
Click to expand...
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Roms aren't going to affect battery life as much as kernel will. As far as kernels I love Franco kernel. I used to use faux with a good experience.
Sent from my Galaxy Nexus using XDA

Thanks a lot everyone will try every thing and see
Sent from my Galaxy Nexus

After trying everything I got a little better battery
I still got question does the official 2000 mah worth and how much more time approximately does it give ?
Sent from my Galaxy Nexus

snab321 said:
After trying everything I got a little better battery
I still got question does the official 2000 mah worth and how much more time approximately does it give ?
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Click to collapse
Well the 2100mAh battery is about 13% larger... so 13% more life.

martonikaj said:
Well the 2100mAh battery is about 13% larger... so 13% more life.
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Click to collapse
Is it official ?
Sent from my Galaxy Nexus

snab321 said:
Is it official ?
Sent from my Galaxy Nexus
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The battery? Yeah... They're sold from plenty of Korean eBay sellers. Official branded Samsung batteries.
And since you're on GSM, its 2000mAh (instead of stock 1750mAh). The Verizon one is 2100mAh (instead of stock 1850mAh). They are NOT compatible.

[Q] JB Battery performance

Hi!
Just wondering if someone has tested the battery performance for JB compared to stock ICS 4.0.4.

Less than 24 hours is not long enough for any definitive tests.

Too soon too compare... :screwy:
Sent from my Galaxy Nexus using Tapatalk 2

I've plugged a car battery to my nexus with jelly bean, and for now I have 99% using it for 7 hours. So far so good
Now seriously, jb is so recent...
Sent from my Jelly Belly using xda premium

if you connect phone to mobile version of nuclear reactor... you will never have to charge it again... EVER!!!!!!!!
and for the this first day of use... playing with phone every day (I have my nexus one week old now, so Ive got new battery), Im on 37 percent left now, but its a really very very early to compare

My phone is down to 47% with 4 hours in, and an hour and twelve minutes on screen..but it is my first charge, And stock kernel.
Sent from my Galaxy Nexus using xda premium

So far 10.5 hours and 1:45 screen time I'm at 48%.
Pretty much the same as ICS for me.

JB has been brutal on my battery life so far.
See the graph below. The dips Down are consumption. The far right is jelly bean... see how much more it drops down? It's using more battery power.
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Sent from my Galaxy Nexus using Tapatalk 2

EP2008 said:
JB has been brutal on my battery life so far.
See the graph below. The dips Down are consumption. The far right is jelly bean... see how much more it drops down? It's using more battery power.
Sent from my Galaxy Nexus using Tapatalk 2
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I wonder if that is due to the new governor that instantly ramps the CPU to max speeds when a touch event is sensed or expected.

With bixie's ROM and the stock kernel, I'm estimated to get 4 hours screen on time which is excellent. Pretty much the same I've gotten with ICS.
Sent from my Galaxy Nexus using xda premium

EP2008 said:
JB has been brutal on my battery life so far.
See the graph below. The dips Down are consumption. The far right is jelly bean... see how much more it drops down? It's using more battery power.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Maybe it's just because your screen is on more since you're still "exploring/fiddling"

It's actually much better for me than ICS - already 4 hours of screen time (68%) and I'm still left with 35% battery.
This is quite impressive to me because I could barely make it to 4 hours on stock 4.04.
Sent from my Galaxy Nexus using Tapatalk 2

harveydent said:
Maybe it's just because your screen is on more since you're still "exploring/fiddling"
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Click to collapse
Well, I'd believe that if the "normal ICS" dips was off-screen usage, but they are the same apps I used before and after.
I'll wait a few days, since JB is likely doing some background processing for its new features, but I can say the device was running hot since installing it.

Well I got an app to measure CPU usage and jb certainly does ramp up the CPU to 100% when simply dragging your finger across the screen.
I wonder how Google offset the battery loss caused by this. I'd certainly take ICS smoothness ( which wasn't bad) for longer battery life.
Sent from my Galaxy Nexus using Tapatalk 2

Since upgrading, my battery is being punished by Media service - it's used over 60% in a couple of hours!
Something not quite right here. I didn't format the SD partition when I updated (but I did do data/system etc. Maybe I need to format the SD too, but I don't see an option in CM for that?

Jellybean batt life observation

Seems jb batt life is pretty bad. 2%/hr idle. Alot of wake locks also from maps and networklocator. :Im assuming all from google now?

Noticed that over the last 24 hours battery life was worse than usual while I was on jellybean. Think you are probably right that Google now is the culprit, I really hope that it gets better before the ota but at the moment it just doesn't seem like it will be worth "upgrading".
Sent from my Cyanogenmodded GNex

emerica243 said:
Seems jb batt life is pretty bad. 2%/hr idle. Alot of wake locks also from maps and networklocator. :Im assuming all from google now?
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Well, it must be Google Now. I turned it off and my battery is relatively the same as it was before. When using background location update, you can expect it to drain battery a little. Google Now uses your location data quite a bit.

I left my phobe at 96% came back 4 hours later and still on 96
Sent from my Galaxy Nexus using xda premium

I thought JB was pretty good on the battery from my experiences. Did my overnight sleep test and it drained 3% in 8 hours just like ICS did.
As for screen on time, I feel that it's even better than before.
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I would be getting 4 hours screen on time if the battery drained to 0.
I'm very satisfied.
Sent from my Galaxy Nexus using xda premium

I'm getting pretty good batterylife with JB. Over 10 hours on battery and over 3 hours of screentime and I still got 40% left with 2000mah oem battery.

I have yet to flash JB, but one thing concerns me. Is this not just a dev preview and not the final product that will be pushed out mid-July? Not to sound harsh, but I don't see why complaints are being made about battery life at this stage of JB. Just my 2 cents, fyi...
Sent from my Galaxy Nexus using xda app-developers app

My battery life is no different.
You also have to remember this is a developers preview build and not the official release.
Sent from my Galaxy Nexus using xda premium

My battery life over the ~12 hours i had jelly installed seemed the same. Good standvy times also. I think it will depend on how much of the new stuff google added you use that will determine battery life. Some of that stuff will make a big impact.
butter and jelly please...

leelaa said:
I left my phobe at 96% came back 4 hours later and still on 96
Sent from my Galaxy Nexus using xda premium
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What kernel are you on? and what freq\gov?

emerica243 said:
What kernel are you on? and what freq\gov?
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Click to collapse
All stock, changed nothing at all, for me its best that way (for now)
Sent from my Galaxy Nexus using xda premium

Even though its just a Dev preview and to early to comment on this, I think its about the same on ICS if not better.
Completely stock , not even rooted.
Sent from my Galaxy Nexus using Tapatalk 2

If you are getting bad battery life and wake issues, check your apps. I've heard LightFlow was causing wakelocks b/c it isn't optimzied for JB yet. I've deleted it until they can get it updated. So far, my battery life hasn't been great b/c I can't keep my hands off of it

Yeah, I would agree that battery life seems pretty good. It seems a little worse on Franco.kernel than stock, but hey, it's a new kernel and he is still trying to get all the kinks worked out. Also, no wakelocks on Light Flow, but I hope they update it soon, lots of my notifications stopped working.

Ehh I don't think its terrible at 2% an hour. Better than 10% an hour. I'll take a little drain for the beauty of JB
Sent from my JellyBelly Gnex

IMO I think it's draining a little fast, but I think that's because I keep flashing kernels and add-ons which reboots and causes the battery to drain super fast... and I've been messing with apps a lot too. So I'm gonna give it another day or two for a definitive answer.

kristovaher said:
Well, it must be Google Now. I turned it off and my battery is relatively the same as it was before. When using background location update, you can expect it to drain battery a little. Google Now uses your location data quite a bit.
Click to expand...
Click to collapse
How do i turn it off
Sent from my Jelly Beaned GNexus

I don't understand what people expect??? They want to have an awesome huge screen, fast processor, 4G speeds, want to run apps like crazy and then have Google Now constantly updating and expect the battery to last all day?? People just need to be realistic!

I'm completely stock and my battery is almost the same. Think it's a bit early to tell yet, we've all been playing more with the new rom
Sent from my Galaxy Nexus using xda premium

I am under the impression that the drain is slightly higher than on ICS, I am now 5,5 hours after charging, with 88% left (and a screen time of 18mins). On ICS I would be around 90 to 93% (with the 2000mAh battery). But nothing really to worry about.
Having said that, I did have lightflow installed and it did show in the wakelock screen, so I uninstalled that to see if the next charge gives me even better endurance.

Battery life issue?

Hi,
So my phone battery was pretty off today and I checked my battery usage. This is the result.
Any ideas? It doesn't look like anything out of the ordinary on running apps...
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Sent from my Galaxy Nexus using Tapatalk 2

are you running stock?
are you rooted?
If you have recently flashed a new ROM, its common for the battery % to get thrown off. There are battery calibration apps on the market to fix it.
If you are running stock, then charge it for a full 8 hours minimum. Run it all the way dead, til it turns off. Then charge it a full 8 hours again.

rudeguy said:
are you running stock?
are you rooted?
If you have recently flashed a new ROM, its common for the battery % to get thrown off. There are battery calibration apps on the market to fix it.
If you are running stock, then charge it for a full 8 hours minimum. Run it all the way dead, til it turns off. Then charge it a full 8 hours again.
Click to expand...
Click to collapse
Negative ghostrider. The battery calibration apps are 100℅ snake oil. They do nothing that unplugging the phone after a charge does not do. Also, wiping battery starts after flashing a rom is pointless since it not only has nothing at all to do with indication, but that is also a clean slate when flashed. The old advice to do this was based upon folds not understanding how both the operating system and the battery's fuel gauge operate.
Also, I wouldn't advise doing the second one too often as it shortens the life of the battery. Discharge to the point of shutdown is unhealthy for it and full charge/discharge cycles shorten its serviceable lifespan.
OP- It would seem that your phone is awake significantly more than it should be if you weren't using it all that much. Google Services should account for less battery use than it is, and idle should account for more. A screenshot of battery use with more details would prover to be very useful. Also, you can use the app BetterBatteryStats to get some insight as to what may or may not be misbehaving.
Sent from my Nexus 7 using Tapatalk HD

I've flashed CM 10.1, using the 28th of December nightly.
Hoping it was just the nightly that caused it, but it's gotten worse throughout the day.

Aerolith514 said:
I've flashed CM 10.1, using the 28th of December nightly.
Hoping it was just the nightly that caused it, but it's gotten worse throughout the day.
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Click to collapse
My best guess is that it may be location services draining your battery.
Sent from my Nexus 7 using Tapatalk HD

najaboy said:
My best guess is that it may be location services draining your battery.
Sent from my Nexus 7 using Tapatalk HD
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Just disabled it in maps. Is it possible that it turned itself on somehow? I haven't had this problem until today.
Also, would there be a reason why the stock messaging app font size is almost double the size? I ended up installing the 'alex' font to make it a bit smaller, but it's still big in comparison to what it used to be.

How To Increase Battery Life ?

my battery drain so fast in 1hour..

you gave us no information, no screenshots or anything. please provide before we can tell you anything.

Zepius said:
you gave us no information, no screenshots or anything. please provide before we can tell you anything.
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sorry for no information & no screenshots or anything...i never thought to take any screenshots.. i only open my mobile network..and its on for 24/7..when screen off yet the battery still drain so fast..

los3rkid91 said:
sorry for no information & no screenshots or anything...i never thought to take any screenshots.. i only open my mobile network..and its on for 24/7..when screen off yet the battery still drain so fast..
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Post a Screenshot of your battery drain in the settings and give details about your setup. And what is fast in your opinion? 1% /hour?
Maybe you should buy the extended battery kit?
Sent from my Nexus 7

los3rkid91 said:
my battery drain so fast in 1hour..
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Click to collapse
try flashing different kernels and see which one suits u the best.every phone is different.u may also wanna underclock and undervolt. also change the rom may b if changing kernel doesnot work.ine suggestion.XenonHD rom with its stock kernel.

The stock battery is a joke at 1800 and the extended is 2100...I had both and both sucked although the 2100 was a lil better. I have the 3800 Seiko battery now and that will last me all day. Makes the phone thicker but its better then charging all day and worrying about what's killing your battery.
Sent from my Galaxy Nexus using xda app-developers app

Turn off features when not being used like data NFC GPS.
Also avoid auto task killers

How much does it drain in one hour? Battery drain depends on many factors. The mains ones would be what kernel and ROM you are running as well as what "features" you have turned on. For example I am running CM10.1 with the stock CM kernel and I usually get around 16-18 hours of battery life with 1.5-2 hours of screen time.. that is with all of the features (gps, NFC, etc.) turned OFF.

Refer to my post, partner
Sent from my Galaxy Nexus using XDA Premium HD app

Lunarskye23 said:
The stock battery is a joke at 1800 and the extended is 2100...I had both and both sucked although the 2100 was a lil better. I have the 3800 Seiko battery now and that will last me all day. Makes the phone thicker but its better then charging all day and worrying about what's killing your battery.
Sent from my Galaxy Nexus using xda app-developers app
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How on earth can you drain a 3800mAh battery in one day? Nonstop internet radio AND 3d gaming on full display brightness?

I am currently using PA rom with franco kernel. Normal day = roughly 13-15 hours ish.
By normal day I mean around 30 minutes of talk time, about 1 hour ish web browsing and like what, 30 minutes ish of youtube? Of course, sometimes I am free and end up playing games on it for couple hours lol, but the stock battery seems to be plenty enough to me.

My battery makes it about 15-17 hours,with about 1 hour gaming,1 hour browsing and talk time around 1,5 hours...Xylon + Purity Kernel!

It is what it is. This is Wi-Fi only on this charge:
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Turn data off when not using it. You can download a widget for that.
Keep screen brightness down low.
If rooted use setcpu and choose a screen off profile of 350mhz maximum - I find this a real benefit.