Develop Bugs

Huge battery drain from the screen?

I've noticed that the screen on my Nitro HD seems to use a ridiculous amount of battery, even at ~20% brightness.
With the screen off most of the time, I can get pretty decent battery life:
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However, with the screen on, the battery seems to drain at a rate of 1% every ~1-2 minutes, even at low brightness settings. You can actually see it in the screenshot above...the sharp downward sloping sections are when the screen was on.
Is anyone else experiencing similar battery drain from the screen, or is my particular screen defective in some way?

It is a consequence of using of hi quality ips display in this phone...

My phone is being abnormally horrible today.. This is absolutely ridiculous,i can see the battery bar just draining by looking at it. I took screen shots but for some reason it says incorrect file extension,i don't usually have any problems.
Sent from my LG-P930 using XDA

The problem is the ICS rom your using, which im assuming is CM9. Thats one of the problems everybody is having with it, and it will eventually go away as bugs are fixed and updates are released.
I'm expecting it to be fixed CM9 RC1, it may not be, but i dont see why RC would release a non-nightly with such a huge widespread problem.

I'm in stock..
Sent from my LG-P930 using XDA

My battery is draining like insane. I can see with my eyes how its draining. Does anyone know how to fix this. I had all the galaxy s2's and other phones none of them did this.
Sent from my LG-P930 using xda premium

I've seen this aswell
Sent from my LG-P930 using XDA

Man nobody buying this phones? This place is empty
Sent from my LG-P930 using xda premium

Yeah I've had bad battery life with this phone too. Especially after flashing a new rom or with the stock rom but I have noticed that the battery life was great with ho!no!'s first rom. Now with cm9 and the nightlies I can't judge it because I'm always flashing the new update. I've noticed that roms need to "settle in" and that after a few days the battery is better.
Sent from my LG-P930 using XDA

I don't know when I start using the phone it gets hot and battery drains. I got the phone today. I really like the hardware better then samsang but this battery is crap. Its all stock no root or anything.
Sent from my LG-P930 using xda premium

samomamo said:
I don't know when I start using the phone it gets hot and battery drains. I got the phone today. I really like the hardware better then samsang but this battery is crap. Its all stock no root or anything.
Click to expand...
Click to collapse
It gets better if you remove the crapware and remove the LG launcher and use a different one.

kernelpan1c said:
It gets better if you remove the crapware and remove the LG launcher and use a different one.
Click to expand...
Click to collapse
went to a different launcher and now the battery is definetly lasting longer.
used to go from 7am to 6pm with just using phone, txt, and e-mail -> %5 left
to
from 7am to 8pm with phone, txt, e-mail, games, surfing -> %15 to %20 left
can't wait to root and remove crud

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
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Click to collapse
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 ?
Click to expand...
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.

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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Click to collapse
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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Click to collapse
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.

Is my battery okay?

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Running on cm10 8/10 preview build.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

What's your screen on time?
Sent from my SGH-I747M using xda premium

d3athsd00r said:
What's your screen on time?
Sent from my SGH-I747M using xda premium
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Screen is on 70 percent I don't know how to check the time
Found it it says 2 hours and 20 minutes
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Your battery life looks normal, and my god you're a smartphone addict...
8 hours screen on time is about the norm for the phone from a full charge to empty.

sultanqasim said:
Your battery life looks normal, and my god you're a smartphone addict...
8 hours screen on time is about the norm for the phone from a full charge to empty.
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My screen has only been on 2 hour 20 mins that is like 1/4 of 8 hours of screen time...? Or do you mean the phone itself being online then it would be 10hours.

Your battery life is normal with the signal readings that are shown in the screenshot. You are showing almost no signal for most of the 10 hours, that will drastically drain your battery. You could probably get another hour of screen time out of that 14%. That would give you almost 12 hours on a full charge with a weak signal. I have also found the stock ROMs to have longer battery life so far than the cm/aokp ROMs, at least on this phone so far. Once they get the cm/aokp ROMs 100%, they will probably yield better battery life.

sultanqasim said:
Your battery life looks normal, and my god you're a smartphone addict...
8 hours screen on time is about the norm for the phone from a full charge to empty.
Click to expand...
Click to collapse
8 hours of screen on time?!?!?!?!? If I get 3 hours it's a miracle. I've never heard of anyone getting a solid 8 hours of actual screen on time. I don't think I'd get that even if the phone was on airplane mode.

try logging out of lattitude

It depends entirely on the ROM and kernel. With stock TouchWiz I can get close to 8 hours. With the latest CM10 I'm also getting close to 8 hours screen time. With KT747 and CM9 and an over clock to 1890 MHz, I got around 5 hours screen time a couple weeks ago.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

sultanqasim said:
It depends entirely on the ROM and kernel. With stock TouchWiz I can get close to 8 hours. With the latest CM10 I'm also getting close to 8 hours screen time. With KT747 and CM9 and an over clock to 1890 MHz, I got around 5 hours screen time a couple weeks ago.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Screen time of 8 hours is a lot isn't it I would be happy with 4 hours.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Battery drains fast for the first 20-25% on Jelly Bean

Hey All,
I hope someone here can help me out. I am on stock rooted JB and the batter drains extremely fast for the first 20%. In about an hour I am down to about 75-80% left. Then it slows down. Also when I unplug the charger the battery immediately looses 5%. I might have to go back to Ginger Bread because this update is so buggy.

I m having the same issue.
Was having 2-days battery life with ICS.
Update to JB with new TMobile radio. Battery lift drop so fast. Only for 1-day. Same usage. Now back to ICS. Still cant get 2-days battery life. Any one has the same problem?
Sent from my SGH-T989D using xda app-developers app

I switched back to Ginger bread. JB has nice features but its too buggy and everything crashed even after a factory reset and debloat.

It will take a couple of days (a week maybe) until the phone settles down into its own. Until that time you will see very random battery stats. It has happened to me on every new OS I have ever flashed. Several reboots followed by a ten minute "no touch" helps me. Meaning boot the phone, let it sit for ten minutes, reboot the phone, let it sit for another ten minutes, etc. After about four reboots like this my battery becomes more stable and predictable.

Same problem. My battery drop so much. I used deep sleep battery saver but seem cant help more.
Sent from my SAMSUNG-SGH-T989 using xda premium

Sounds like you guys might have have some rogue apps but also it does take a little time for the ROM to settle in
Sent from my SAMSUNG-SGH-T989 using xda premium

I froze or uninstalled everything there is to freeze and uninstall. The only thing that syncs is the email every 30 min. Thats it. I am a light user and on GB I get 3 days of battery life on a single charge. After this update I cant get half a day. I never heard of ROM that needs to settle, is it like a new puppy or something

Damn that's crazy I've never seen 2 days
Sent from my SAMSUNG-SGH-T989 using xda premium

On GB for 12 hours with 70% left. I have been using the phone quite heavily today. I can usually get about 3 days out of it with light use an only email sync.
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Yeah that's wild but I prefer having the latest and greatest I can deal with at least getting a day out of my battery ha I have 4 spare batteries always fully charged ready to go
Sent from my SAMSUNG-SGH-T989 using xda premium

megaforcer said:
On GB for 12 hours with 70% left. I have been using the phone quite heavily today. I can usually get about 3 days out of it with light use an only email sync.
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You used the phone quite heavily? You barely have any screen on time. That is not heavy at all.

What the stats don't show is that my screen was on for at least 2 hours that morning while I was trying to restore GB from backups. It took at least 5 attempts to get it to work properly.

thakrew317 said:
Damn that's crazy I've never seen 2 days
Sent from my SAMSUNG-SGH-T989 using xda premium
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Click to collapse
+1 to that! 3 days is crazy!
megaforcer: Can you please post screenshots with battery lasting 3 days?
Also, what GB ROM are you using for that kind of life?