Develop Bugs

Juice Defender

I'm installing this as a last resort before sending my phone back. After hard reset and everything, battery is still a major drain.
For those that are using it, how well does it work? Which settings are you using?
I've only the free version for now but would consider upgrading if it does help?
Also, how do you prevent meebo from disconnecting when the screen turns off? Is that an option on the free version?

rwc3b said:
I'm installing this as a last resort before sending my phone back. After hard reset and everything, battery is still a major drain.
For those that are using it, how well does it work? Which settings are you using?
I've only the free version for now but would consider upgrading if it does help?
Also, how do you prevent meebo from disconnecting when the screen turns off? Is that an option on the free version?
Click to expand...
Click to collapse
About Juice Defender, for me it worked with ~1.6x batterylife.
About Meebo: get Trillian, they made it for free this week. You stay connected even if your phone is off(for max of 1 day, changeable in settings) and you'll receive al the messages which came while your online the enxt time you login again. You can manage all your accounts on the PC with the regular Trillian program and then login on your phone with your Trillian account and all the accounts will be there. It is a real nice app with very low battery consumption.

The free version is very limited. I use the ultimate version and I'm rather happy with it. I don't want to schedule traffic when my phone is idle, but that would be a massive battery saver.
Yes, you can set different settings for each app in the paid versions. You can set a trigger that makes sure your internet is always on when meego is running, even when your screen is off.
But overall, I have no problem to use my phone for more than 12 hours on battery with moderate usage. Maybe you should send your device back anyway.

I had terrible battery drain as well but ive managed to resolve this. have you tried:
1. Deleting all social hub accounts?
2. Deleting your mail account if you use the stock mail app?
3. Updated to latest official firmware?
I was experiencing 10% idle drain per hour. Now i'm at 1-2%. Battery life is a huge improvement compared to my old desire. Dont guve up on this phone.
Sent from my GT-I9100 using XDA App

In my experience standard battery drain per hour should be
1~2% screen off / data off
3~5% screen off / data on
12~15% screen on / data off
18~20% screen on / data on
WiFi uses less battery than 3g but as you can see display is main problem...
Sent from my GT-I9100 using XDA Premium App

TriNeo said:
I had terrible battery drain as well but ive managed to resolve this. have you tried:
1. Deleting all social hub accounts?
2. Deleting your mail account if you use the stock mail app?
3. Updated to latest official firmware?
I was experiencing 10% idle drain per hour. Now i'm at 1-2%. Battery life is a huge improvement compared to my old desire. Dont guve up on this phone.
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
1. I froze all Samsung-related apps and accounts with Titanium Pro
2. I'm using the Gmail stock app. Is that bad?
3. I updated to KE2 and hard reset twice
4. I also froze the wifi apps
when my phone is idle overnight - screen off and not in 'awake', it dropped from 100%-56% in 7.5 hours. i posted a screenshot in another thread.
http://forum.xda-developers.com/showpost.php?p=13875879&postcount=684

rwc3b said:
when my phone is idle overnight - screen off and not in 'awake', it dropped from 100%-56% in 7.5 hours. i posted a screenshot in another thread.
http://forum.xda-developers.com/showpost.php?p=13875879&postcount=684
Click to expand...
Click to collapse
Sounds like you need to clear your battery history, leave it over night, then check what's been using it overnight to me.
I have 5-10% drop at most overnight (7 hours or so).

Uvaavu said:
Sounds like you need to clear your battery history, leave it over night, then check what's been using it overnight to me.
I have 5-10% drop at most overnight (7 hours or so).
Click to expand...
Click to collapse
thanks. how would i clear battery history? is that under setting -> applications -> running ?

Also try clearing data on the software update app. That appeared to work for some people. U definitely have a rogue app eating your battery... Can you give us a list of your running processes immediately after you restart?
Sent from my GT-I9100 using XDA App

So after using Juice defender ultimate for a couple weeks now, with the customizable apps configuration, I see no improvement in battery life.
I lost 50% charge overnight with just push email on (stock gmail app), only synching email and contacts.
For those with this app, what configurations are you using to improve the battery?
Sent from my GT-I9100 using XDA Premium App

I have it setup to turn the data, and wifi off while the screen is off.
Night mode is enabled, from 11:30, to 7:00am
I also have it only allow wifi via location, work or home.
It eats 1-2% while in standby per hour.
and about 3-4% overnight.

i tried juice defender ultimate and it made no difference. I deleted it just because its another app working in the background...

I found it to be very effective when set up correctly. Lose less than 1% an hour at idle.
Sent from my GT-I9100 using Tapatalk

mark2222 said:
I found it to be very effective when set up correctly. Lose less than 1% an hour at idle.
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
how did you set it up?
Sent from my GT-I9100 using XDA Premium App

mark2222 said:
I found it to be very effective when set up correctly. Lose less than 1% an hour at idle.
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Mine does that (1-2% per hour at idle) without Juicedefender and push email/facebook active. The problem with JD is also that when set to switch off Wifi and data in the background when the phone is idle, it doesn't always switch them back on after the phone awakens, resulting in many pain in the ass moments.
I bought it 6 months ago and never use it any more.

Richdog said:
The problem with JD is also that when set to switch off Wifi and data in the background when the phone is idle, it doesn't always switch them back on after the phone awakens, resulting in many pain in the ass moments.
Click to expand...
Click to collapse
I use Green Power for that... simply awesome... light and stable.
Sent from my Galaxy SII
If you find this post usefull please press the "Thanks" button

Vairn said:
I have it setup to turn the data, and wifi off while the screen is off.
Night mode is enabled, from 11:30, to 7:00am
I also have it only allow wifi via location, work or home.
It eats 1-2% while in standby per hour.
and about 3-4% overnight.
Click to expand...
Click to collapse
hmm some people talks good, some bad about JD.
I paid for Ultimate version, and must say its brilliant!!
Over night 1-2% /6H
Standby 1-3% /Hour
with screenfilter i get 6 1/2 Hours with display on and UMTS today
from 78% drop to 10% and from 10% to 5% in 5Hours again.
Iam suprised with JD, very well

rwc3b said:
how did you set it up?
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
Pretty standard really wifi and mobile data enabled (ultimate version), autosync on ping, 15 minute scheduled check for 30s. I don't have it turn off data at night because the phone is usually plugged in and have data enabled when the screen is on. It also manages the wifi locations so usually it only connects to wifi.

nightranger73 said:
I use Green Power for that... simply awesome... light and stable.
Sent from my Galaxy SII
If you find this post usefull please press the "Thanks" button
Click to expand...
Click to collapse
Hmm I'd never heard of that app, but did a bit of research and it looks like it really does wake the connections well with the latest release... will give it a try!

I lost 4%/idle for 12 hours.

[Q] Is this acceptable battery life?

So I unplugged the phone at 7am in the morning,its almost 12 hours since.
My Usage was browsing 20 mins,facebook 10 mins, 5-10 texts, few apps installation,5-10 emails,5 min instagram,10 minutes of calls, 5-10 minutes reading pulse,GPS on for 5-10 minutes
And general other things using the screen to look up contacts etc.
These are the screenshots below.
Im running everything stock jellybean 4.1.1,stock rom,stock kernel. Its rooted and installed flash apk.
Now i would like to know is this really light Usage?
For this usage,is the battery life good or can it be made better?
Thank you for your time!

Check your location settings in Maps. It seems Google Now is using up the battery by using the "Update Location" feature on my phone.

Yep the location settings are all enabled.
Sent from my Galaxy Nexus using xda app-developers app

Srirama said:
Yep the location settings are all enabled.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
I think the "Location" features in Google Now need some fine tuning. I believe Google Now requires that you have location updating turned on to work so I have opted to turn off Google Now to see if Google will make it more efficient in the future.

But does this constitute average battery life?
Sent from my Galaxy Nexus using xda app-developers app

And this is the screen usage time.
Sent from my Galaxy Nexus using xda app-developers app

the subjav
Maybe I've always had below average battery life, but if I'm on any rom and I get 12+ hours of it + around 3 hours of screen on time. I usually consider it average. But that's basically what I've got on any rom/kernel, even stock.

At least your Nexus has better battery life than mine!
I'm using stock JB JRO03C ROM with stock kernel + XXLF1 radio baseband and with 3 hours screen using will drain my Nexus's battery too quick...
I gonna buy extended battery for my GSM Nexus but it will not help really much, maybe I gonna test Jame Bond kernel for Jelly Bean if that gives better battery life to my Nexus..

Srirama said:
But does this constitute average battery life?
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
I'd just checked mine and I'd gotten about 15 hours with at least 100 texts, 4 5 minute calls, 2 hours of music playing through headphones, constant facebook checking, and wifi on for 50% of battery time all with google now turned on and when put on charge still had about 30% batt. left.
I am using the jelly belly v3 rom though so can't speak for stock.

sanyokt4j said:
I'd just checked mine and I'd gotten about 15 hours with at least 100 texts, 4 5 minute calls, 2 hours of music playing through headphones, constant facebook checking, and wifi on for 50% of battery time all with google now turned on and when put on charge still had about 30% batt. left.
I am using the jelly belly v3 rom though so can't speak for stock.
Click to expand...
Click to collapse
Wow thats amazing battery life.
I never could manage so much and listening to music drains a lot of battery for me. I'm on stock 4.1.1, I consider mine as light usage too,wish I could get more out of it.
Sent from my Galaxy Nexus using xda app-developers app

Srirama said:
Wow thats amazing battery life.
I never could manage so much and listening to music drains a lot of battery for me. I'm on stock 4.1.1, I consider mine as light usage too,wish I could get more out of it.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
The music doesn't seem to drain my battery much, its only if I keep messing with the player.

Are you just listening to music or streaming it?
Sent from my Galaxy Nexus using Tapatalk 2

about 3/4 just listening the other was streaming, mind you this was into my headphones not through phone speaker

Try reducing the display brightness, it's the biggest factor in battery-drainage for me.

The display is at quite a low level. Maybe I need to flash other Roms to get better battery life.
For example right now.
My phone has been unplugged for roughly 2 1/2 hours. And I'm down to 86% and the screen usage time is only 33 minutes.
Sent from my Galaxy Nexus using xda app-developers app

try getting CPU spy and seeing if the phone is going into deep sleep, maybe you have an app that keeps it awake?

Srirama said:
The display is at quite a low level. Maybe I need to flash other Roms to get better battery life.
For example right now.
My phone has been unplugged for roughly 2 1/2 hours. And I'm down to 86% and the screen usage time is only 33 minutes.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
That roughly translates to 17 1/2 hours with 3 1/2 hours screen on time. Which is pretty average depending on what apps you use.
Could you provide more details like what apps/widgets you have with what sync settings you're using, email accounts, weather, etc?
Also, what variant of the Nexus are you using? GSM? Verizon? And are you using the stock battery or an extended?

Am getting 11hours 30 minutes now with 10% left.Thats worse than yesterday with pretty much the same usage. Infact i defaulted to 2G networks and didnt even use 3G.
Sure,Im using the stock weather widget and what's this song widget.
The apps that i use daily are pulse,facebook,twitter,gmail,messages,people,speedtest(maybe once or twice a day),xda,gallery,google talk,dropbox and Gtasks.
2 Gmail accounts and 1 other email account are in push sync.
and maybe few pictures with the stock camera app
Im using the GSM international version
Im on stock battery.
The accounts in sync are shown in the screenshot(except for dropbox,everything else is on)

Its even worse now.
6 hours from unplugging and am down to 50%
Sent from my Galaxy Nexus using xda app-developers app

Srirama said:
Am getting 11hours 30 minutes now with 10% left.Thats worse than yesterday with pretty much the same usage. Infact i defaulted to 2G networks and didnt even use 3G.
Sure,Im using the stock weather widget and what's this song widget.
The apps that i use daily are pulse,facebook,twitter,gmail,messages,people,speedtest(maybe once or twice a day),xda,gallery,google talk,dropbox and Gtasks.
2 Gmail accounts and 1 other email account are in push sync.
and maybe few pictures with the stock camera app
Im using the GSM international version
Im on stock battery.
The accounts in sync are shown in the screenshot(except for dropbox,everything else is on)
Click to expand...
Click to collapse
Facebook is notorious for battery drain. Check the settings in Facebook and make sure to "uncheck" the location setting. Also, try to switch a couple email accounts to do "hourly" checks instead of push (unless you absolutely need them to be push). Also, try reducing the sync intervals on apps like Pulse and Twitter.
Considering you're using the stock battery the battery life seems on par with the usage your phone is getting even when not using the screen. Push, sync, and apps that use a lot of data transfer (like Dropbox) use significant battery.
I noticed the "Maps" application is using up a good amount of battery in your screenshots which means it's probably updating your location quite a bit and/or you use Navigation. Either way, that eats battery life as well. A lot of apps use location so it would be best to check those settings as well.
Also, depending on when you're using "2G", it could mean it is taking longer to pull data which might lead to battery drain.

Is this battery drain normal/reasonable?

I unplugged my phone before I went to bed to see how much it would drain overnight. I only slept for 5.5 hours. My phone had lost 16%. Is this normal?
I was connected to wifi, only thing I had syncing was Facebook for every 4 hours.
I forgot to screenshot the cpu times, but it spent a majority of the time in deep sleep and 384.
Also, what do the red bars mean in BBS?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

rha_december said:
I unplugged my phone before I went to bed to see how much it would drain overnight. I only slept for 5.5 hours. My phone had lost 16%. Is this normal?
I was connected to wifi, only thing I had syncing was Facebook for every 4 hours.
I forgot to screenshot the cpu times, but it spent a majority of the time in deep sleep and 384.
Also, what do the red bars mean in BBS?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Try disabling WiFi as well? Im guessing you dont need Facebook to sync while you sleep, just refresh it when you wake up. Noticed you clock down to 384mhz while screen off. odd how still took away a lot for only 5 hours.

DarthDerron said:
Try disabling WiFi as well? Im guessing you dont need Facebook to sync while you sleep, just refresh it when you wake up. Noticed you clock down to 384mhz while screen off. odd how still took away a lot for only 5 hours.
Click to expand...
Click to collapse
I dont think clocking down helps that much. it doesnt stop the same processes from running, and it takes longer to run them with the lower processing power, especially when the phone has all night to do it /

According to your screenshots you have posted, that kakao talk app is in wakelock, keeping the phone from actually sleeping. Although the other stats seem to contradict this i would be willing to bet this is your problem. I would either disable it from syncing in the app, freezing the process, or somehow prevent it from running. I would put money on it improving battery life drastically. I cant be sure of this as i dont use betterbatterystats but i would suspect the red bar is the time spent in wakelock, while the cpu is supposedly in deep sleep.

That doesn't look normal. I get less than 1%/hour overnight. Though I don't use Facebook or Facebook app. I do have 2 Gmail accounts on auto sync. Weather widget sync/hour. Field trip and Google+ sync enabled and wifi is always on when I'm at home.
Sent from my SAMSUNG-SGH-I747 using xda premium

Definitely not normal... I get about the same 1% an hour overnight.

I'll give it a shot tonight. Thanks.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

I had battery drain issues, download juice defender, it basically turns off 4g when the screen is off and allows email retrievable based on a set schedule...my phone lasts twice as long now
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Weird drain overnight

Hey guys, I got this weird drain of about 1%/ hr over a period of 6 hours overnight with 2g data and auto sync on, the previous night with 3g data on I drained only 2% in 9 hours.
Apparently my phone has one hours of being kept awake by a wake lock named
mdm_hsic_pm0
And another hour by
Battery_monitor
Does this happen to anyone else?
Sent from my GT-N7105 using xda app-developers app

Frostyeo said:
Hey guys, I got this weird drain of about 1%/ hr over a period of 6 hours overnight with 2g data and auto sync on, the previous night with 3g data on I drained only 2% in 9 hours.
Apparently my phone has one hours of being kept awake by a wake lock named
mdm_hsic_pm0
And another hour by
Battery_monitor
Does this happen to anyone else?
Sent from my GT-N7105 using xda app-developers app
Click to expand...
Click to collapse
I have the same at the top but not as long as yours. Dont know what it is from?

Frostyeo said:
Hey guys, I got this weird drain of about 1%/ hr over a period of 6 hours overnight with 2g data and auto sync on, the previous night with 3g data on I drained only 2% in 9 hours.
Apparently my phone has one hours of being kept awake by a wake lock named
mdm_hsic_pm0
And another hour by
Battery_monitor
Does this happen to anyone else?
Sent from my GT-N7105 using xda app-developers app
Click to expand...
Click to collapse
Same here on the note 2 with Sprint but I loose about 2-3% per hour. Go to sleep with 100% wake up in the morning with 80-85% left....

This is the only thing i found in bbs thread
mdm_hsic_pm0 is afaik the same as l2 Hasic, just a new name under Jellybean, so its traffic related, i would keen an eye on my background activity..
Click to expand...
Click to collapse

battery monitor wakelock is almost related to the BBS

ssame thing happening to me..should i change kernel ?

i have same battery monitor drain and wlan_wake

I use to have battery drain on my GT-N7100 (and overheating problem). What turned out was that the Gmail sync on one of my accounts was going in a loop and never ending. When I fixed it, all went back to normal.

What rom / Kernels you peeps running? I had this once, flashed a different rom and no problem. Currently running Omega 7.1 with excellent battery life over night.

Mdm hsic is related to mobile data and this includes both 3g and wifi. Turn off 3g when not in use and you will see this wakelock going down. THe other one is nothing to worry
sent from: The New S-Pen

Reuven007 said:
I use to have battery drain on my GT-N7100 (and overheating problem). What turned out was that the Gmail sync on one of my accounts was going in a loop and never ending. When I fixed it, all went back to normal.
Click to expand...
Click to collapse
What exactly did you do to fix the gmail sync issue? PLEASE, do explain. This battery drain is absolutely horrible.

tonyf7 said:
What exactly did you do to fix the gmail sync issue? PLEASE, do explain. This battery drain is absolutely horrible.
Click to expand...
Click to collapse
First, when you set the phone for the first time it does a lot of initial activity that may cause drainage.
In my case, I have 3 gmail.com accounts on my phone. I only need one of them to sync email, Picasa, contacts and calendars. On the other 2 I need only email. The phone was syncing everything on all accounts: in addition to the above also Google Photos, Play Magazines,Play Music, Internet, Keep and People Details.
As soon as I disabled all the unwanted syncing, things improved.

Tips and tricks: improve JB idle battery life.

Confirm the following option is unchecked:
Maps/Settings/Location settings/Report from this device.
If it is checked, uncheck it.
Here's the difference in battery life -
About half the battery drain with the option unchecked.

Thanks for the tip
Sent from my SPH-L710 using xda premium

It looks exactly the same lol. Just one was running on battery longer than the other?

ReapersDeath said:
It looks exactly the same lol. Just one was running on battery longer than the other?
Click to expand...
Click to collapse
What are you talking about? Did you zoom in to see screen on/awake usage? Both are about 7.5 hours of idle time.

I updated my phone to JB and followed the battery saving measures and the battery is dropping very quickly.
Before it could last up to 3 days in standby, now I'll be surprised if it lasts 8 hours.
I'll give it another day then try a factory reset if it does not improve.
Anybody else seeing this?
I have watchdog on the phone and it shows zero cpu off time.

Just install better battery stats, there is also a way to dump the same info in terminal but I don't use it. You are looking for alarms apps cause. It's most likely maps, followed by talk, exchange client, or anything like Twitter, FB,g+,stocks.... but most likely maps location settings
Sent from my SPH-L710 using Tapatalk 2

I have been doing a lot of research and the end result is that JB out of the box will eat your battery and yes disabling the settings under maps does in fact help a lot but there is a lot more you can do to get good life... for starters get the simple stuff out of the way, DELETE FACEBOOK MOBILE APP!!!...and twitter and anything that actively accesses the internet in the background... I know this may sound taxing but it is so worth it if yiu just make a bookmark in your browser and view it periodically than have an always active app... next if you are not in a primarily lte covered area set your phone to cdma only... go into settings and go to data usage and here you can see what is using data in the background I.e. facebook... and go there and check the restrict app box.., disable auto brightness and some have said that if you disable sprint connection manager thing you can do even more.... now that one I cannot be sure about I will post results in the coming days of what I find
Sent from my SPH-L710 using xda app-developers app

OZGBLACK said:
I have been doing a lot of research and the end result is that JB out of the box will eat your battery and yes disabling the settings under maps does in fact help a lot but there is a lot more you can do to get good life... for starters get the simple stuff out of the way, DELETE FACEBOOK MOBILE APP!!!...and twitter and anything that actively accesses the internet in the background... I know this may sound taxing but it is so worth it if yiu just make a bookmark in your browser and view it periodically than have an always active app... next if you are not in a primarily lte covered area set your phone to cdma only... go into settings and go to data usage and here you can see what is using data in the background I.e. facebook... and go there and check the restrict app box.., disable auto brightness and some have said that if you disable sprint connection manager thing you can do even more.... now that one I cannot be sure about I will post results in the coming days of what I find
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
You are pretty much correct the FB app sucks but I never really had much problems with it.
A lot of these tips though in general (not directed towards you) are stupid.
Like someone said a while ago I refuse to gimp my phone to sip a little bit more life out of it. What's the use of having a smartphone if you're not going to use it like one.
I always have high brightness unless its dark out. I broke my syncs intervals up to about 4 hours per sync and have push notifications from twitter and weather.
With those apps all I have to do is refresh when I enter the app having those syncing all the time is worthless unless you're constantly checking every 10 seconds.
I say I get fairly decent battery life granted I'm on wifi most the time and 7-8 hours with about 2 hrs screen on playing HD games youtube poweramp and my background processes.

Well in regards to the act of extending the life of your battery these are simply tips that you can utilize in the event you are someone who is out for extreme amounts of time.... I average anywhere from 13 to 17 hrs of battery life with 100% brightness, wifi 3g all of my favorite apps... instagram xda kik kindle Skype etc. And 5 to 6 hrs of screen on time. .. so these gimping tactics more than double my phones live time and doubles my life.... but hey if you can get to a charger after 8hrs by all means but for the most part I cannot until after 13 but i do in fact appreciate your incite
Sent from my SPH-L710 using xda app-developers app

Also even though you are disabling sone of these apps like google now.... you can still use it your just turning off the background nonsense
Sent from my SPH-L710 using xda app-developers app

OZGBLACK said:
Well in regards to the act of extending the life of your battery these are simply tips that you can utilize in the event you are someone who is out for extreme amounts of time.... I average anywhere from 13 to 17 hrs of battery life with 100% brightness, wifi 3g all of my favorite apps... instagram xda kik kindle Skype etc. And 5 to 6 hrs of screen on time. .. so these gimping tactics more than double my phones live time and doubles my life.... but hey if you can get to a charger after 8hrs by all means but for the most part I cannot until after 13 but i do in fact appreciate your incite
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
what rom and kernel are u using

Even with changing that setting in Maps I still am not getting the same battery life as I did with ICS. Maps is still coming up as my most used app when I check battery usage even though I rarely use it. Wonder if it may be Google Now causing Maps to keep running.

nabbed said:
What are you talking about? Did you zoom in to see screen on/awake usage? Both are about 7.5 hours of idle time.
Click to expand...
Click to collapse
Oh wow. Sorry from my phone I couldn't zoom in. I see now lol. Thought I saw 90 and 89 or something like that

I had the Maps setting turned off for a few days and also had A LOT of stuff disabled, but unfortunately my battery life (and my wife's as well) wasn't as good as ICS, and quite a bit worse actually.
Sadly, today, it looks like I figured out what the killer is:
Google Now.
This morning, 100% charged, I turned it off. My wife (who still had it on) and I were out and about together for about four hours, we both barely used out phones for that time. When we got home I checked both phones: I was at 96%, she was at 80%.
The only difference that I hadn't already accounted for:
Google Now.
So, unfortunately, it looks to me like one of the two biggest reasons for wanting JB in the first place (Butter being the other of course) turns out to be a big battery hog I don't yet know if there's maybe some setting within it that is a specific problem or if it's the whole thing in general... maybe you just need to disable a card or change an update frequency or something (I didn't touch any so I'm running whatever the defaults are), I don't know yet... but all indications are that's where the problem lies.
That, my friends, sucks.

Well since my phone has calmed down I am getting 13-16 hr easily. Brightness maxed of course and about 4-6 screen on time I will never cripple my phone. Hell I bought it so I can use not to look at. Lol thanks for the post of this though if I'm ever I. A die hard , situation I'll know what to do
Sent from my SPH-L710 using xda app-developers app

Orbiting234 said:
Even with changing that setting in Maps I still am not getting the same battery life as I did with ICS. Maps is still coming up as my most used app when I check battery usage even though I rarely use it. Wonder if it may be Google Now causing Maps to keep running.
Click to expand...
Click to collapse
Google Now uses the "Report from this device" and "Enable location history" maps location settings to determine your driving patterns so it can suggest alternative routes and report traffic delays. Disabling "Enable location history" will disable the driving pattern suggestions completely.
FWIW Settings | More settings | Mobile networks | Network mode
Changing from "CDMA" to "LTE / CDMA" has gained me better battery life. My wife also noticed the same.

(To save time, I'm cutting & pasting my post from another similar thread.)
> http://forum.xda-developers.com/showthread.php?t=1963689&page=3
"I have had my Galaxy S3 for a week now. Battery life stabilized after the initial syncing, etc. I updated to Jelly Bean v4.1.1 two days ago, and battery life didn't seem noticeably different. However, that was until today. My phone was off of the charger, around 10AM, and had < 5% charge by 4:30PM. I was very busy, so I was hardly using the phone all day. It was in my pocket or on my desk most of the time. One of the only settings I changed last night, was enabling 'Use wireless networks' and enabling 'Location and Google search' under 'Location Services' in 'Settings'. I just disabled both settings, and will see if the battery drain is any less tomorrow. Also, Google Now was off, and was never enabled on my phone. I'll try to post the results, if at all possible..."
So, for me, it seems to be Location Services may have caused my poor battery life, and was definitly not Google Now, as it was never enabled. I'll try using the phone with the settings off, and see if that changes anything...

Toney Starks said:
what rom and kernel are u using
Click to expand...
Click to collapse
Stock stock stock jellybean ota... that's it
Sent from my SPH-L710 using xda app-developers app

I do love Jelly Bean; as it is ICS only improved or enhanced. But battery life has definitely taken a hit. I can barely make it through 24 hrs. On ICS I could do a day and a half to two days with really light use. I've tried just about everything mentioned with little change. Good thing I have an extra battery. Thank you Samsung for making a phone with a user replaceable battery.
Thanks for all the ideas/suggestions anyways,
El Mono

I noticed the huge difference as well. I was walking around Chicago yesterday and not using my phone. After 4 hours I looked and my battery was at 50 %.
Sent from my GT-N8013 using XDA Premium HD app