Develop Bugs

Battery life with Jellybean

I know it's still early but has anyone else found Jellybean to have worse battery life compared to ICS? I'm totally stock with only the bootloader unlocked. Usually after a full day use with ICS I have 30% left and with JB I'm around 15%. On a day with heavy use I'm sure I will have to charge in the middle of the day which is very inconvenient. I'm trying to see if it's JB itself or some app which is draining things now that I'm on JB.

I'm finding it to be significantly better actually. I couldn't make it through a full day on ICS most days. With JB i'm easily above 30% most days at end of the day.

Maybe its because you like more your phone now and therefore you spend more time playing with it

Do you have Google Now enabled? The frequent location pings and GPS wakelocks drain the battery

harveydent said:
Do you have Google Now enabled? The frequent location pings and GPS wakelocks drain the battery
Click to expand...
Click to collapse
Just wondering if anyone has disabled latitude and how this effects Google now? The battery drain isn't really a bother for such a cool feature... just out of interest really
Sent from my Galaxy Nexus using xda premium

g8who said:
I know it's still early but has anyone else found Jellybean to have worse battery life compared to ICS? I'm totally stock with only the bootloader unlocked. Usually after a full day use with ICS I have 30% left and with JB I'm around 15%. On a day with heavy use I'm sure I will have to charge in the middle of the day which is very inconvenient. I'm trying to see if it's JB itself or some app which is draining things now that I'm on JB.
Click to expand...
Click to collapse
Mine seems worse compared to 4.0, phone doesn't go to deep sleep and keeps waking up ... maybe it's my Exchange email account, but this was fine when I was on 4.0.
How is your phone sleeping?

This may seem a strange suggestion, but I've found that leaving wi-fi on, even when I'm not using a wi-fi network seems to even out the battery drain. Helps to get Google Now working 100% as well. So try that when you can. I've found it works fantastically for me.

g8who said:
I know it's still early but has anyone else found Jellybean to have worse battery life compared to ICS? I'm totally stock with only the bootloader unlocked. Usually after a full day use with ICS I have 30% left and with JB I'm around 15%. On a day with heavy use I'm sure I will have to charge in the middle of the day which is very inconvenient. I'm trying to see if it's JB itself or some app which is draining things now that I'm on JB.
Click to expand...
Click to collapse
Stock vs. stock ROMs (both using LeanKernel as well) I've found Jellybean to actually have better battery life. I managed four hours of screen on time with the stock battery yesterday and today, something I could never come close to accomplishing with stock ICS.

turn off wifi, gps and 3g, and you'll go far. Turn em on only when necessary. I leave google now on. I'm only at 40% after 22 hours. Granted it defeats the purpose of a smartphone, but if I'm at work, working...then I don't need all those things turned on.

Turn off Google now of you don't really use it. I loved playing with it for a few days and realized it wasn't THAT useful for me I only really used weather. I keep the voice search active and turned the cards off. I just use a decent weather widget and maps WHEN I'm travelling if worried about time. HUGE battery saving. So many (understandable) wakelocks when activated.
Sent from my Galaxy Nexus using xda app-developers app

Battery life is worse for me, I'll stick to ICS for now, no rush.
Sent from my Galaxy Nexus using Tapatalk 2

It's weird, it seems the battery life is worse, but it could be that I'm using it more than before. The on-screen time does seems slightly better than on ICS, but I'm going to need more testing before I can confirm...

killyouridols said:
Turn off Google now of you don't really use it. I loved playing with it for a few days and realized it wasn't THAT useful for me I only really used weather. I keep the voice search active and turned the cards off. I just use a decent weather widget and maps WHEN I'm travelling if worried about time. HUGE battery saving. So many (understandable) wakelocks when activated.
Sent from my Galaxy Nexus using xda app-developers app
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Click to collapse
Hmmm...I will try that out, thanks. Google now was fun to play with the first couple days but if it means I need to charge middle of the day forget it. I will try turning it off and see what kind of results I get.
For the record, I've left all my GPS, Wifi and sleep settings intact from ICS so those settings shouldn't have effected my battery life.

I don't care for Google Now, just the new voice search part.
Sent from my Galaxy Nexus using Tapatalk 2

What kernel are you guys finding the best battery life with? I tried popcorn kernel and Francos kernel.
I think popcorn was better...
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isinisterx said:
What kernel are you guys finding the best battery life with? I tried popcorn kernel and Francos kernel.
I think popcorn was better...
Sent from my Galaxy Nexus using Tapatalk 2
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Click to collapse
I didn't find Franco very pleasing. The Faux kernel (b6 I think) worked great and gave me excellent battery.
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I could be wrong but I think project butter requires the processor to run at a higher clip and thus uses more juice.
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ttahatt said:
I could be wrong but I think project butter requires the processor to run at a higher clip and thus uses more juice.
Sent from my Galaxy Nexus using xda app-developers app
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Click to collapse
I'm actually getting better battery life on Jelly Bean than I was on Ice Cream Sandwich. Running at a higher clock isn't the only thing (or the main thing, I think) that gives Jelly Bean it's buttery smoothness.
Google really put effort into improving Vsync on the device, which mainly gives the device that buttery feel.
Sent from my Galaxy Nexus using Tapatalk 2

[Q] Help! Flashed Jelly Bean, down to ~6hrs Standby Battery Life

I flashed Jellybean for my gnex this last weekend, and I've noticed a severely precipitous drop in battery life (15% in 90 min, 15 min screen on). I found this yesterday when my phone went completely dead after just 6 hours on idle, despite running some pretty severe power-saving options. I can literally see the battery draining as I took the screenshots to post.
Running 4.1.1 stock, Franco Kernel Version 5 (power save powermode), 2100 mAh battery - I tried to provide as much information as I can in the screenshots. The weird thing is that none of the information stands out as an obvious power-drain, its just falling for what I believe to be no good reason.
Please help!

First of all: congrats if providing such detailed information about your battery information! (I'm being serious, not sarcastic)
Secondly, have you tried running it with WiFi only to see if there's a difference? Also, you need to go through about 2-3 charge cycles before you have a good idea of our battery range.
Also, what kernel are you using?
Sent from my Galaxy Nexus using Tapatalk 2

I have same problem, 1750 stock battery only lasts about 3 hours....
AOKP JB B 1 and franco
Sent from my Galaxy Nexus using xda premium

Kernel
I'm hoping its just running it a few charge cycles fixes the problem, because my battery meter is like a countdown clock right now.
I'm running 3.0.41-franco.Kernel-Milestone5.
geoffcorey said:
First of all: congrats if providing such detailed information about your battery information! (I'm being serious, not sarcastic)
Secondly, have you tried running it with WiFi only to see if there's a difference? Also, you need to go through about 2-3 charge cycles before you have a good idea of our battery range.
Also, what kernel are you using?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse

I reccommend getting cpu sleeper. Its brillant and saves me tons of battery
https://play.google.com/store/apps/details?id=com.eugene373.cpu.sleep&feature=nav_result#?t=W251bGwsMSwxLDMsImNvbS5ldWdlbmUzNzMuY3B1LnNsZWVwIl0.

CPU Sleep
Thanks! However, I'm already running on only one core, from a setting in Franco's app.
My problem is that there doesn't seem to be anything glaring that is draining my battery. Awake time is slightly more than I'd like, but not nearly enough to drain the battery at 10% an hour with the screen off.
And for the above poster, I have not tried running it with wifi only and no mobile data - wifi at my office is spotty, and I'd like the conditions I am testing it at to try to mirror how I would normally use my phone.
ac3theone said:
I reccommend getting cpu sleeper. Its brillant and saves me tons of battery
Click to expand...
Click to collapse

bmurray said:
Thanks! However, I'm already running on only one core, from a setting in Franco's app.
My problem is that there doesn't seem to be anything glaring that is draining my battery. Awake time is slightly more than I'd like, but not nearly enough to drain the battery at 10% an hour with the screen off.
And for the above poster, I have not tried running it with wifi only and no mobile data - wifi at my office is spotty, and I'd like the conditions I am testing it at to try to mirror how I would normally use my phone.
Click to expand...
Click to collapse
hmmm... did u try replacing the battery?

Battery
No - the battery worked just fine on ICS as of last Friday (28 hours standby charge). I would hope that flashing ROMs/Kernels would not actually damage it.
Thanks for trying to help - I'm really confused since all the ratios look comparable to people who get great battery life, but for some reason, just seem to suck about 5x more battery for me, so its impossible to pinpoint one specific culprit. I thought it was a mis-calibration, but apparently that is just a myth.
ac3theone said:
hmmm... did u try replacing the battery?
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Click to collapse

Let me start by saying that I am not an expert, but the following tips helped me. I agree with the WiFi and the detail you provided was great. I see that you are running 4G, this will eat up the battery. Your ROM may have a toggle for the 4G (LTE) and 3G (CDMA). If you have WiFi available I would use that. You may want to turn off the NFC (system setting>Wireless & Networks More....) unless you use google wallet or share screen alot. Also, I had horrible results with the Facebook app running in the background, which I have taken off my phone. I set a bookmark in dolphin browser instead of using the app.
If you are not seeing any improvements with in the next few battery cycles you may try wiping the battery stats in Recovery. The first ROM I flashed from stock my battery life was all over the map and wiping battery stats helped. I ran the same Franco Kernel and was getting 2.5 -3 hrs of screen time. Hope this helps.

also, get CpuSpy from the market, and see which speeds your cpu is using (or not using).

Not that this will help software issues but Sprint is giving away a free 2100Mah extended battery with the door. You just have to pay for the shipping. No scam at all, I think they know that they have a glitchy piece of product and need to help calm us down. Just call telesales and tell them you own a Gnex.

CPU Speeds
Almost exclusively at 384 or 729 mHz, capped at 1026.
geoffcorey said:
also, get CpuSpy from the market, and see which speeds your cpu is using (or not using).
Click to expand...
Click to collapse

So that means that the CPU isn't going into deep sleep, which is an issue.
All I can suggest is reflash with a full wipe, and reinstall the apps you can, and slowly weed out any rogue apps that could be causing said issue.
Sent from my Galaxy Nexus using Tapatalk 2

Deep Sleep
Sorry, I meant that when awake, the vast majority of the clock speeds are 384 and 729. I am in deep sleep approximately 75% of the time.
If no solution comes up in this thread, I will try re-flashing to stock JB/stock JB kernel tomorrow night to see if it just needed a few recharge cycles to stabilize, and if not, if wiping/reinstalling helps.
geoffcorey said:
So that means that the CPU isn't going into deep sleep, which is an issue.
All I can suggest is reflash with a full wipe, and reinstall the apps you can, and slowly weed out any rogue apps that could be causing said issue.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse

I'm getting the complete opposite of u op
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Yeah, that seems to be the general experience here. My phone is down to ~28% since the OP. Again, the proportions in which things are draining power are correct, they are just doing it too quickly (1% per minute of screen time).
I'm going to completely wipe and re-flash JB tonight, keeping the stock kernel this time, unless someone can help me out.
Alton (Halo 2) said:
I'm getting the complete opposite of u op
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Click to collapse

bmurray said:
Yeah, that seems to be the general experience here. My phone is down to ~28% since the OP. Again, the proportions in which things are draining power are correct, they are just doing it too quickly (1% per minute of screen time).
I'm going to completely wipe and re-flash JB tonight, keeping the stock kernel this time, unless someone can help me out.
Click to expand...
Click to collapse
Did u flash francos kernel yet ?
Sent from my Galaxy Nexus using xda premium

Yes - every process/screen is drawing the typical percentage of power use (~50% screen, 8% Phone Idle, 8% cell standby), but the battery is draining 4x faster than it should. Francos app shows me running at completely standard voltage, and I'm on the powersave mode. I think it must be a battery indicator/stats issue, otherwise the proportions would be all off.
Alton (Halo 2) said:
Did u flash francos kernel yet ?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse

bmurray said:
Yes - every process/screen is drawing the typical percentage of power use (~50% screen, 8% Phone Idle, 8% cell standby), but the battery is draining 4x faster than it should. Francos app shows me running at completely standard voltage, and I'm on the powersave mode. I think it must be a battery indicator/stats issue, otherwise the proportions would be all off.
Click to expand...
Click to collapse
Try wiping ur battery stats in cwm
Sent from my Galaxy Nexus using xda premium

I know that is supposedly a placebo, but in this case, something is clearly wrong. I'll give it a try.
Alton (Halo 2) said:
Try wiping ur battery stats in cwm
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse

[APP] Snapdragon™ BatteryGuru.

*PLEASE SHARE your experiences and RESULTS here in this thread. Do bear in mind it will take 3 or 4 days to find out though!*
''Snapdragon™ BatteryGuru is a battery life saver app that extends battery performance and improves overall user experience by intelligently making changes that optimize device functionality in phones with Snapdragon mobile processors. This app:
• Delivers longer battery life with fewer charges, acting as a battery life extender
• Intelligently learns how you use your Snapdragon-powered smartphone and optimizes your device without disabling smartphone functionality
• Requires no user configuration - Snapdragon BatteryGuru automatically learns and adjusts the smartphone settings so you don’t have to
After a brief 2-4 day introduction period, Snapdragon BatteryGuru learns the user’s behaviors and then notifies the user that it is ready to extend the battery life and improve the experience. Snapdragon BatteryGuru continues to operate in the background, deepening its understanding of the user and further optimizing the experience over time.''
https://play.google.com/store/apps/details?id=com.xiam.snapdragon.app
The app seems a good for the average Nexus 4 user. I think. It certainly is polished
I'd like to know peoples experience and (improved?) results with this please. I can barely get out of the learning phase as I keep updating my device ROM so I know it will be frustrating/useless for many...
People seem to be very positive on reddit and elsewhere which is the only reason it's caught my interest. Beta results for some are impressive at least. Others less so. Hopefully posting some ACTUAL RESULTS here will be better than endless posts saying 'its great' or 'it's useless'.
Cheers. :thumbup:

waiting..
I read the reviews on google play, and I flash roms and kernels daily-- so I am holding off till more results are in or I stop this compulsive updating ..

Just installed, will report back in 3 days 7 hours...

d4c said:
Just installed, will report back in 3 days 7 hours...
Click to expand...
Click to collapse
Tapatalk

Its great for those who leave wifi and data on. For me (i ve been using it since first release)it didnt do much but its somehow helpful.
Sent from my LT30p using xda premium

What exactly does it do does it only change sync settings
Sent from my Nexus 4 using Tapatalk 4 Beta

I used this a few months ago. Did nothing. If you are looking for battery life, try a custom kernel
Sent from my Nexus 4 using Tapatalk 4 Beta

Its like juice defender and such
Sent from Holy Terra on a paranoid nexus

I used it while it was still in beta. Uninstalled it - no battery improvements seen. Re-installed it again today, will see how it performs. I use to manually disable what I don't need most of the times.

saniyal said:
What exactly does it do does it only change sync settings
Sent from my Nexus 4 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Yes that's exactly what it does
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josephnero said:
Yes that's exactly what it does
Click to expand...
Click to collapse
The principle? Why only Snaps then... If it uses their well-undocumented QMI stuff, the heavens may break loose, in principle again.

Report after 2 days 8 hours
Sent from my rooted GT-I8730 using xda app-developers app

aureljared said:
Report after 2 days 8 hours
Click to expand...
Click to collapse
Seems incredible! Well, are you sure? My girls would say I'd be losing my weight, that might be an ounce, the Chinese battery charger.

avs333 said:
Seems incredible! Well, are you sure? My girls would say I'd be losing my weight, that might be an ounce, the Chinese battery charger.
Click to expand...
Click to collapse
Google translate fail?
Sent from my Nexus 4 using xda app-developers app

oSandmaNo said:
Google translate fail?
Click to expand...
Click to collapse
Google what?

This app has been posted multiple times here on XDA. The general consensus is that it sucks or doesn't do anything.
I've given it a try twice. The last time I uninstalled it because it kept turning wifi on when I was nowhere near a router or hotspot. I'm pretty sure my battery life improved once the app was uninstalled off my phone.

I've been using this app for quite a long time (I think since the first day it came out as beta).
Works as it's supposed to, got the option to disable any sync (OUTSTANDING battery life), simple, minimalistic, doesn't bug.

The only complaint that I had was that before installing, an email from gmail would hit my phone a minute before it showed on my computer. After installing it, even with the use most battery setting for Gmail, there is a delay in notification. I have been using this since it came out as a beta.

Very good program. When it gets used to your preferences, saves a lot of battery.

fryck said:
The only complaint that I had was that before installing, an email from gmail would hit my phone a minute before it showed on my computer. After installing it, even with the use most battery setting for Gmail, there is a delay in notification. I have been using this since it came out as a beta.
Click to expand...
Click to collapse
...Perhaps it's because Gmail depends on sync and BatteryGuru controls sync?
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Wicked v3 with faux kernel

I have installed wicked v3 and the faux m version kernel. The first day it seemed like my battery life was much better. However now the battery life is actually worse. I am only getting 5 or 6 hours with medium use before my phone is almost completely dead and I have to recharge it. I also have it underclocked in set cpu. Can anyone suggest what I could have done wrong?
Thanks
Drew
Sent from my SGH-M919 using xda app-developers app

dclifford said:
I have installed wicked v3 and the faux m version kernel. The first day it seemed like my battery life was much better. However now the battery life is actually worse. I am only getting 5 or 6 hours with medium use before my phone is almost completely dead and I have to recharge it. I also have it underclocked in set cpu. Can anyone suggest what I could have done wrong?
Thanks
Drew
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
install wakelock detector (free) or/and betterbatterystats (paid.. like 2 bucks). It might not even be a problem with the rom/kernel, but more with wakelocks causing your cpu to run while the screen is off. if the wakelocks are out of control, you'll see battery life disappear fast even if you put down the phone for a few hours. using the aforementioned two programs you can diagnose whats keeping your phone awake, then google the name of the wakelock (or go to the betterbatterystats thread in one of the forums here), and decide to freeze, delete, greenify or do whatever to fix the problem.
keep in mind that betterbatterystats will detect more kinds of wakelocks, but will not be very friendly to people who can't understand whats what. wakelock detector will detect most wakelocks, is very clean, but the one wakelock it doesnt detect may be burning your cpu.
if you want to extend your battery life a bit further, you can use tasker to turn off certain things that use battery like: 4g, wifi, gps, and turn them on when you: need them, have the screen on, open a certain application, at a certain time, etc.

dclifford said:
I have installed wicked v3 and the faux m version kernel. The first day it seemed like my battery life was much better. However now the battery life is actually worse. I am only getting 5 or 6 hours with medium use before my phone is almost completely dead and I have to recharge it. I also have it underclocked in set cpu. Can anyone suggest what I could have done wrong?
Thanks
Drew
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
5-6 hours of screen time??
Sent from my SGH-M919 using xda app-developers app

Thank you for responding. I have installed wakelock and will see what the results show later today. If I upload a screen shot of the results on here would you help me review them? I fall into that category of user who probably will not know what's what as I am just diving into the world of kernels. Also I am only getting about 5-6 hours total time, not screen time. I've seen others say they are getting 10-15 hours or more with faux kernel. For now I have actually switched over to ktooneez kernel due to the poor battery life I was getting from faux kernel. It seems a little better so far but still not near what I was expecting from others comments.
Thanks.
Sent from my SGH-M919 using xda app-developers app

dclifford said:
Thank you for responding. I have installed wakelock and will see what the results show later today. If I upload a screen shot of the results on here would you help me review them?
Click to expand...
Click to collapse
yes
dclifford said:
For now I have actually switched over to ktooneez kernel due to the poor battery life I was getting from faux kernel. It seems a little better so far but still not near what I was expecting from others comments.
Click to expand...
Click to collapse
then it probably isnt a problem with your kernel

What could cause Android OS to consume so much battery?

This was after a day of using the phone for my normal usage I've used it from 7 am to 9:04 pm can anyone help me with this?
Sent from my Nexus 5X using Tapatalk

THIS. I was about to post the same question here in XDA. I have some screenshots attached if they can help you guys see the "extent" of the problem.

I would upload a image but XDA won't let me till I have 10 posts or something but my phone is displaying the same thing basically
Sent from my Nexus 5X using Tapatalk

Same here

Running in safe mode and so far the battery is ENORMOUSLY durable. I'm easily going to get off with 10 hours SoT if it continues like this...

Same here
Similar posts:
https://www.reddit.com/r/nexus5x/comments/3q9vpl/android_systemos_why_so_much_battery/
https://www.reddit.com/r/nexus5x/comments/3qg5qn/androidos_and_android_system_are_my_top_battery/
https://www.reddit.com/r/nexus5x/comments/3qgvzu/battery_life/
http://forum.xda-developers.com/nexus-5x/help/android-os-wakelock-phone-wont-sleep-t3234928
http://forum.xda-developers.com/nexus-5x/help/lost-50-battery-overnight-t3234429

ViRb3 said:
Running in safe mode and so far the battery is ENORMOUSLY durable. I'm easily going to get off with 10 hours SoT if it continues like this...
Click to expand...
Click to collapse
Care to post some screen shots?
Sent from my Nexus 5X using Tapatalk

thesoldier said:
Care to post some screen shots?
Sent from my Nexus 5X using Tapatalk
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Click to collapse
I didn't run a full-scale test, but 30 minutes of screen-on with only ~3% battery drain..... was superior to what I get right now, with all of my apps installed. If somebody else can test this I would be grateful.

Probably related to location tracking and Google now unfortunately.

It's the location tracking and Google cards and always scan for WiFi. I'm a delivery driver and phone was never going to sleep it was always tracking me. I don't use any of that anyway

I don't use Locations (but just about every other software feature is enabled) and I'm seeing great battery life. 3+ hours SoT is the lowest I get and that's on terrible signal mobile data, and 6 hours SoT on mostly WiFi usage. I will do a test with Locations enabled (with location based GNow cards) and see how much difference it makes.