Develop Bugs

SOLVED: ICS Upgrade Myth Dispelled - Factory Reset Does Not Fix Battery Drain

EDIT: Please read this entire thread, there's some good info. Every phone and every situation is different, however it turns out my battery drain was the result of my phone not hitting "Deep Sleep". The culprit was my SD card, if you're experiencing battery drain after upgrading to ICS try removing your SD card and restarting your phone, use the app CPU SPY to verify your phone is now hitting "Deep Sleep". Again please read on, amidst some trolls there is more detailed information.
SIDENOTE: This being my first thread I have to say on the whole I really like this community!
I never thought I'd be that guy saying don't upgrade to ICS, because the OS is so slick and fun. However the glitch with the battery drain nullifies it's value. My brand new phone, less than two months old will die before the end of the day without me making a single phone call. I'm talking maybe an 1 to 1.5 hours of use texting, checking mail, surfing, and my battery now runs dead before I even get home from work. If you go into Settings > Battery it will show you the break down of what's using what. At the top should be your display, it takes a lot of power for to run the ultra bright display and this is what I saw before the ICS update. After the update these are the numbers:
Android OS: 58%
Screen: 18%
Cell Standby: 10%
Phone Idle: 7%
Android System: 2%
The OS is taking 58% of the battery?!? This is crazy!The buzz going around the net is if you do a factory reset it will fix the issue, well it does, but only for a very short time.
I went through the pain and formatted my SD card, then did a factory reset on my phone lost everything, well I backed it up, but still was a long process. After all that I loaded up my apps, and everything looked great. If you I went into the battery break down Screen was back at the top and the Android OS was several rungs below. I was SO happy! It was worth it after all.... THEN
Imagine my chagrin I woke up this morning to a full charge. Didn't make one phone call, just checked a couple emails, and being only a HOUR into my day my battery is at 76%!! I look back at the battery break down, and there's Android OS sitting at the top, draining double the battery juice as the screen display. I mean this almost makes ICS useless, what good is this great cell phone if you have to be tethered to a power cord. WTF!! Point being, don't bother resetting your phone, it DOES NOT permanently help. If you haven't upgraded to ICS don't, we're all just screwed until they come out with a fix, and you see how long it took them just to get ICS.
I don't know what happened between last night and today, but my hope is some dev person will read this and it will help them pinpoint the issue.

Did you backup and restore your app data as well?
Sent from my SPH-D710 using xda premium

squshy 7 said:
Did you backup and restore your app data as well?
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Nope, the only thing I backed up was pics, music, and video, and I combed through those folders to make sure there were no sys files.

It sounds more like your battery is going bad. You can go to Sprint store and they will test your battery for you.
You might also want to get a battery monitoring program and see what is using the battery up.
Sent from my SPH-D710 using xda premium

its not a ics glitch its your phone lol.. ive never had this issue.. plus with the source kernels coming out and with roms/tweaks already out youcan increase battery life yourself.. because your battey cant keep a charge you bash ics? go back to gingerbread then lol. i can use my phone for two hours and leave it off charger over night and still have at least 50% charge
Sent from my SPH-D710 using XDA

nim6us said:
Android OS: 58%
Screen: 18%
Cell Standby: 10%
Phone Idle: 7%
Android System: 2%
QUOTE]
It looks like your phone may never be going into deep sleep. Get CPUSpy from Google Play and see what is going on.
Click to expand...
Click to collapse

theheathen said:
It sounds more like your battery is going bad. You can go to Sprint store and they will test your battery for you.
You might also want to get a battery monitoring program and see what is using the battery up.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Having a bad battery would not make Android OS use the majority of his power though. I have had this problem myself in the past and never did figure out exactly what stopped it. Running Blue Kuban now and my battery life, though never great, is reasonable. FYI, I also run Juice Defender which makes a substantial difference for me.

Running pretty much stock ICS FF18, just have agat safe recovery/kernal installed. Yesterday I left Wimax on all day and when I went to charge it last night it had about 28% left. I made several phone calls, many texts/whatsapp messages, reading emails and using twiitter/fb a couple of times.
The battery life on this is not the greatest, for example, I forgot to turn off wifi when I left my house the other day, well my battery dropped about 30% in just a few hours. I now find that just leaving Wimax on all day is actually better and pretty much on par with just having 3G on, I prefer wifi at home but if I forget to turn it off it kills my battery.
I was so used to Blazers 4.1 battery life, the battery lasted forever and I could leave wifi, bluetooth etc on all day. Just hoping for the ROMs to start incorporating the recently released source so that we can get better battery life on these great ROMS.

This is all known information. That's why you use custom roms that have much better battery life.
Sent from my SPH-D710 using Tapatalk 2

I had same issue here with custom rom FF18 touched by SGS3. Went back to EL29, FF18 is glitchy and slower anyway.

Confirmed, factory reset battery drain exists.

OP, why don't you put up a screenshot of your battery graph? The expanded one, not the one that lists the percentages.
There are a number of reasons why this could be happening. One of my biggest drainers on CM9 was Google login service, turned out the "keep this device backed up with Google" in the backup and reset settings was completely preventing my phone from going to sleep. This is but one example.
Sent from my SPH-D710 using xda premium

I am getting decent battery life with the 'super galaxy rom' almost on par with the caulkin el29 build I was using... LOVE it!
Sent from my SPH-D710 using xda app-developers app

You guys need to quit crying wolf and figure out what is really draining your battery. Maybe your google drive is syncing, or you have facebook running, or email is pulling too often, ICS does not kill battery rogue apps and wrong settings do.
Try this https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats (search xda for other versions)
and this https://play.google.com/store/apps/details?id=nextapp.systempanel&hl=en
Figure out whats waking up your phone and running when its not supposed to be and until you have data STFU

someguyatx said:
You guys need to quit crying wolf and figure out what is really draining your battery. Maybe your google drive is syncing, or you have facebook running, or email is pulling too often, ICS does not kill battery rogue apps and wrong settings do.
Try this https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats (search xda for other versions)
and this https://play.google.com/store/apps/details?id=nextapp.systempanel&hl=en
Figure out whats waking up your phone and running when its not supposed to be and until you have data STFU
Click to expand...
Click to collapse
seconded, attached is the battery stats for an average day for me on ff18 based goodness.... these "problems" are all able to be resolved rather easily with very little effort... this is not a paid tech support forum and no one is going to spoon feed you when solutions have been posted countless times in countless hysterical threads like this
Sent from my SPH-D710 using xda app-developers app

My phone is not rooted and this is the battery life I'm getting after the OTA with light use. With regular use I get at least 25-30 hours.

carole6m said:
My phone is not rooted and this is the battery life I'm getting after the OTA with light use. With regular use I get at least 25-30 hours.
Click to expand...
Click to collapse
Just curious, what's your display time. From the looks of it, doesn't seem like much. But still, that's pretty impressive nonetheless.
Sent from my SPH-D710 using xda app-developers app

demonlordoftheround said:
nim6us said:
Android OS: 58%
Screen: 18%
Cell Standby: 10%
Phone Idle: 7%
Android System: 2%
QUOTE]
It looks like your phone may never be going into deep sleep. Get CPUSpy from Google Play and see what is going on.
Click to expand...
Click to collapse
So if it's not going into deep sleep what's the fix?
daniel4653 said:
This is all known information. That's why you use custom roms that have much better battery life.
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
I'm a super n00b, if you or someone could link me to the best ICS ROM the cool kids are using I can figure out how to install it.
-----
However bottom line, before ICS upgrade my battery life was great and my Android OS was not 50% of my battery power. I'm not rooted or have any custom anything, after the ICS upgrade my battery drains rapidly. I'm willing to do what it takes to get it fixed, however I do fully put the blame on ICS, I'm using stock everything, the battery is good, something in that update is screwing my battery.
All I was trying to do was give developers, a little insight that the factory reset temporarily fixed the issue, for 3-4 hours before bed I monitored it and everything was good. So hopefully this will help turn the light bulb on in someone else's head.
Click to expand...
Click to collapse

ICS works really well for some, but for others it renders the phone completely useless. I'm one that it won't work for as well. The battery life is **** and 4g connectivity is non existent. As a result, I'm back to EL29/GB until a patch is made.
I spent 4 days after teh OTA was released trying to find fixes, trying to make it work, using different kernals and modems, but had no success. I posted about it many times and more or less was told that I was doing it wrong.
On that not, good luck mate. Here's to hoping for a patch from samsung soon. :good:

nim6us said:
demonlordoftheround said:
So if it's not going into deep sleep what's the fix?
I'm a super n00b, if you or someone could link me to the best ICS ROM the cool kids are using I can figure out how to install it.
-----
However bottom line, before ICS upgrade my battery life was great and my Android OS was not 50% of my battery power. I'm not rooted or have any custom anything, after the ICS upgrade my battery drains rapidly. I'm willing to do what it takes to get it fixed, however I do fully put the blame on ICS, I'm using stock everything, the battery is good, something in that update is screwing my battery.
All I was trying to do was give developers, a little insight that the factory reset temporarily fixed the issue, for 3-4 hours before bed I monitored it and everything was good. So hopefully this will help turn the light bulb on in someone else's head.
Click to expand...
Click to collapse
I have a thread stickied in general called "welcome to he et4g" that might be a good place for you to start, from there you'll figure out what you need to search for to learn more... there is no best rom its a matter of opinion, so read the dev threads and see what looks good to you... bottom line without seeing more information from you I would guess you have something running in the background preventing deep sleep, as mentioned earlier... also are you leaving wifi, Bluetooth, etc on? That'll kill your battery quick... do you live in an area with poor sprint signal? Constantly searching for service will also drain you battery. What do you have to set up to sync? And how often? There are easy ways to prolong battery life on ff18 and the vast majority of people complaining about battery life have not taken positive steps to learn more and resolve their own issues... it can be done, good luck
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse

Battery Drain

Is there an app or way that conserves the battery power. The phone is still completely stock but it received a firmware update through Tmobile and ever since then the battery gets drained by 4 pm (after all apps are x-ed out and phone is just in standby) the batter drops to around 30 percent... what can I do? I don't think it needs a new battery since its only a few months old... suggestions?

SLP Catalyst said:
Is there an app or way that conserves the battery power. The phone is still completely stock but it received a firmware update through Tmobile and ever since then the battery gets drained by 4 pm (after all apps are x-ed out and phone is just in standby) the batter drops to around 30 percent... what can I do? I don't think it needs a new battery since its only a few months old... suggestions?
Click to expand...
Click to collapse
I dont know how much you use your phone and weather or not you watch movies or download files with Wi-Fi alot but it could seriously drain your battery if you leave things like Wi-Fi, Bluetooth, NFC, Brightness Up, or use live wallpapers.
If not, I would recommend checking your battery against someone elses because I've had a phone before that had a bad battery that could explode and caused me to have battery issues. Make sure your battery isnt swollen at all and if it is make sure you take it out and dont put it back in and go to a Battery+ store nearby and I'm sure they got one for your phone (they come with warranty).

Well my wife and I have the same phone and it does it to both. I don't have signal in my job since they have a Verizon antenna and it blocks our t mobile signal so I don't use it during the day which means the phone is just on stand by for the first eight hours. I make sure I turn off wifi, blue tooth, GPS etc and close all apps....but by the time I get out of work it's at 30-40% power.... both phones were bought this April so was hoping it wasn't/isn't a hardware issue and have to replace the batteries....
Sent from my SGH-T989

This is where the world of rooting and tweaking your android becomes extremely attractive.
There are ROMs that last 1 day + ( that's 24h+ hours of battery)
Only need two things....
1. Patience - to sit, read and closely follow instructions
2. Guts - to take a dive and risk ruining your phone. (Which doesn't happen if you have number 1)
Sent from my SGH-T989 using xda app-developers app

thanks for the reply. Yeah I've been thinking about doing such things, but am a complete noob. Is there a link to a tutorial (from start to finish) on rooting/flashing custom rom in here? All I see is one or two step threads or discussions on different roms?

SLP Catalyst said:
thanks for the reply. Yeah I've been thinking about doing such things, but am a complete noob. Is there a link to a tutorial (from start to finish) on rooting/flashing custom rom in here? All I see is one or two step threads or discussions on different roms?
Click to expand...
Click to collapse
Try this.
http://forum.xda-developers.com/showthread.php?t=1650908
Or this ( more thorough and noobish)
http://theunlockr.com/2011/12/01/how-to-root-the-samsung-galaxy-s-ii-all-versions/
Sent from my SGH-T989 using xda app-developers app

1. juice defender is a start.
The rest all needs rooting really.
2. Build.prop tweaks
3. UV with a custom kernel
4. Lowest screen brightness (doesn't require root)
5. Restrict yourself to 2G networks either using AOKP settings or a build.prop tweak
There are others but this is how I achieve great battery times mostly.
Sent from my SGH-T989 using xda app-developers app

TheLastSidekick said:
1. juice defender is a start.
The rest all needs rooting really.
2. Build.prop tweaks
3. UV with a custom kernel
4. Lowest screen brightness (doesn't require root)
5. Restrict yourself to 2G networks either using AOKP settings or a build.prop tweak
There are others but this is how I achieve great battery times mostly.
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the info:thumbup:
Sent from my SGH-T989

SLP Catalyst said:
Thanks for the info:thumbup:
Sent from my SGH-T989
Click to expand...
Click to collapse
Why not try and find out what is using your battery up first? Try GSAM from the play store, its free for one, easy to use, it will show you what is draining your battery, there are a few paid ones as well, but try the free first , HERE is the direct link to GSAM.
or QR code, just scan it with phone.

SLP Catalyst said:
Well my wife and I have the same phone and it does it to both. I don't have signal in my job since they have a Verizon antenna and it blocks our t mobile signal so I don't use it during the day which means the phone is just on stand by for the first eight hours. I make sure I turn off wifi, blue tooth, GPS etc and close all apps....but by the time I get out of work it's at 30-40% power.... both phones were bought this April so was hoping it wasn't/isn't a hardware issue and have to replace the batteries....
Sent from my SGH-T989
Click to expand...
Click to collapse
That is a very weird situation and try a app that shows the apps using battery. Even check the stock android battery section in settings and see whats getting used. Your brightness should be first since it can really eat your battery if its turned up. I dont think its defective since both your phones are having the same problem but both my parents have the 4.0.4 firmware installed on their T989's without a problem and get decent battery power. I however am using a custom rom with kernel. Did you use the same battery for each phone? or each phone has the same problem with their own devices and their own batteries when getting updated to 4.0.4? If you used your battery on her's I'm assuming the problem may be the battery and you just got unlucky with a defective one.
P.S. I'm assuming 4.0.4 because thats the latest update to ICS for the T989 on T-Mobile.

The battery manager that comes with the phone identifies the display, but I've set it to lowest setting and have a dark background. And yeah both phones have their respective batteries which makes me think it's a software issue.. We just upgraded to the 2.3.6 ( I guess t-mobile is a but behind lol). But I going to try the juice defender tomorrow... It's just while I root the phone and get a custom ROM... (doing my homework before doing anything since it'll be first time)
Sent from my SGH-T989

Those apps wont really help, it basically does what you can do manually, turning off settings or putting them at low usage. Rooting is the way to go, its rather simple, once you do it, you will have wished you done it sooner. Trust me, I was in the same boat, I had just got my phone last december, the wife and I were in Vegas and my battery was horrible, I was taking lots of pictures and video, but my battery was dying. I had no way to charge it til we got back to the hotel, next day was same thing, horrible battery, this was all before ICS even was around for this device. When I got back home, I rooted my phone, to date, I have gotten a best 44 hours out of the phone. I ROM hop so I try out the variety, there is how to's and videos here and youtube, you will kick youself on how easy it truly is to root and flash. GSAM will show you in more detail what is using your battery the most, good luck with whatever you choose to do. There are many people here who can help you along the way, thats what this site is for.

Juice Defender will help a ton with you're screen being off for extended periods of time. Normally without it, I lose 30% at work without touching it. Today, I have lost 6%. The margin won't always be like that but it's a sizeable difference. Also, I have an app monitor application you can use to track rogue apps. There is also this app called Autostarts where you can disable an app from opening and it's really useful for apps that you don't need running in the background. Turning off auto sync will help as well IF you are okay with not getting every email in 5 minutes.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

My battery life

A few days ago I decided to try out ktoon's kernel. I was getting horrible battery life and there is a distinct possibility I did not give it enough time to settle as some have said. One person suggested I get Better Battery Stats, but at the paid app part, I didn't bother and went back to stock kernel.
Since then I have found the thread here and installed it to see what was going on. Fully charged battery unplugged and left idle.. When I woke up I had 8 hours of time on the battery and 92% left.. I was happy with this... A quick game of Angry Birds Star Wars later, and I am down to 88%... Now it has been an hour and a few random things later (Angry Birds Seasons, uninstalling bloat via titanium backup) and I am down to 78%.. 10% gone in an hour?
I am just a bit on the very confused side. I was getting 18 hours or so of decently heavy use prior to flashing a custom kernel. Now, I could just be checking my phone more and not noticing it and causing some bias here, but I am at a loss. One member seems to think I have a hardware problem causing my battery drain and that I should replace my device, but I figure it doesn't hurt to seek a second opinion.
As for the ROM I am on, it is just the stock LJ7 with a few theme tweaks I have done and removed some bloat.
Perhaps I am just looking too deep assuming something is wrong..
EDIT: I just followed a tip by Naddict to stop Google Maps from reporting anything.. Hopefully that helps a bit..

Same I think I get good battery life randomly like for instance any ROM or kernel I try I get random battery life sometimes 10+ hours sometimes 7 or less and I do my best at optimizing my phone to save battery I switch brightness to zero no sync at all juice defender ultimate was also tried lol
Sent from my SPH-L710 using xda app-developers app

Could you post kernel alarms. I mentioned the potential for SD issues basically it works this way. You have cached information that doesn't get wiped the program accesses it and basically because for instance the ktoonsez kernel contains newer linaro or the fact it's based on 4.12 those small difference make the cache potentially poisonous.... another example is corruption of the partition causing media scanner to basically endless loop another example network spoofer if it crashes while running corrupts dalvik and requires a wipe. Or your SD card it's failing. Just examples
Sent from my SPH-L710 using Tapatalk 2

Forgot to mention, when I wrote the OP, I had already switched back to stock kernel. Phone is plugged in charging atm, I'll have that screen shot for you in the morning if you still need it.

I can't complain with these results here... Since I did a few things when I got up, I lost 1%. But over night I only lost 7%

What am I doing wrong. 4 hours after a full charge and I'm at 28%. I used the phone for a total of an hour today between Facebook, YouTube and Internet browsing. Almost dead, WTF!! Please someone help me fix this. I have each frequency undervolted 115 MHz and its pretty stable. I also keep mobile data always off when not using it. So why is my battery life so horrible.
In using freegs3 jellybean.
Sent from my SPH-L710 using xda premium

I've read a lot of people on here complain about the facebook app just sucking the battery away.. Some choose to use the mobile site to connect.. Try uninstalling facebook and seeing how it goes.
tomtom96135 said:
What am I doing wrong. 4 hours after a full charge and I'm at 28%. I used the phone for a total of an hour today between Facebook, YouTube and Internet browsing. Almost dead, WTF!! Please someone help me fix this. I have each frequency undervolted 115 MHz and its pretty stable. I also keep mobile data always off when not using it. So why is my battery life so horrible.
In using freegs3 jellybean.
Sent from my SPH-L710 using xda premium
Click to expand...
Click to collapse

My battery life using aokp Rom by task and ktoonsez and ktoonsez kernel. With Google maps location not reporting. Data and sync turned on. Just figured I'd share.
Sent from my SPH-L710 using xda app-developers app

battery issue
I am having the same issue..this is my first time rooting..and before i rooted I never ran out of battery..but since i rooted i see my battery just droping my the minute as I use my phone..I dont understand what is going on..I tried freezing tons of apps and I have not used face book..any one please help

Do you have better battery stats? It will show if anything is running when screen is off then you can at least narrow it down. What Rom are you on?
Sent from my SPH-L710 using xda app-developers app

[Apps] "Snapdragon™ BatteryGuru (Beta)

Just installed a battery saving app from snapdragon..
https://play.google.com/store/apps/details?id=com.xiam.snapdragon.app
Has someone used this app for a while... please share experiences and comparison with other apps like juuce defender.
Sent from my SAMSUNG-SGH-I747 using Tapatalk

I just downloaded it to see how it does compare to Juice Defender and DS Battery Saver Pro. I never really like Juice Defender and have been using Battery Saver for a month and it seems to help my battery life.
Once I have been using for a few days I will report back what I think about it. Thanks for the post tho otherwise I wouldn't have found this app.

Just installed this.... will report back when it's done learning and switches to saving mode.

Thanks for the heads up, i'll give this a try.

nice grabbed this up will be checking it out.

Just posted this in the Verizon Galaxy S III forum as well.
Still seems silly to me that we are going to have to have 4 separate discussions for an app that will work the same on each carrier.

I'm not really sure on what the value of these apps are.
Letting my phone do whatever it wants when I'm on wifi and my phone is sitting idle, my phone uses around 1%/hour of battery life.
Some portion of that is all this app could really save then, right?
Why bother if, in exchange, I'm possibly having delayed notifications, apps not updating in the background, etc.?

I've been running this app .today is 3 day (around) have not rebooted or anything using phone as always honestly don't see a difference yet..
Sent from my SGH-I747 using xda premium

This app just switched from learning to power saving mode. Will see how it goes.

hedphones said:
This app just switched from learning to power saving mode. Will see how it goes.
Click to expand...
Click to collapse
Mine too. I didn't think it would ever switch over. I'm interested to see how it goes. I currently use 5.8% battery per hour. Hope it helps out.
Sent from my SAMSUNG-SGH-I747 using XDA Premium HD app

WattB006 said:
I just downloaded it to see how it does compare to Juice Defender and DS Battery Saver Pro. I never really like Juice Defender and have been using Battery Saver for a month and it seems to help my battery life.
Once I have been using for a few days I will report back what I think about it. Thanks for the post tho otherwise I wouldn't have found this app.
Click to expand...
Click to collapse
Let us know how it fares against JD and BSP. I have JD Uktmate and have been happy with it. I lose about 1% an hour at night which is better than the 3% I was losing prior to purchasing JDU.

Capa1970 said:
Let us know how it fares against JD and BSP. I have JD Uktmate and have been happy with it. I lose about 1% an hour at night which is better than the 3% I was losing prior to purchasing JDU.
Click to expand...
Click to collapse
doesnt do anything, i get about 12% drain in 9 hours when im sleeping, what it does just turn off wifi for me if im not in range, which is useless, having wifi on doesnt drain much battery at all

Thanks for the link! Will update in a few days with results

can't tell if it's just a placebo effect or not, but i feel like my battery life is a little better after using this app

I haver never once had a random reboot until I installed this today not sure its related just throwing it out there
Sent from my SGH-I747 using xda app-developers app

After using this for the past few days I would say overall it is not that bad of an app. I am really starting to like it. My average battery usage went from 5-6%/hr to 3-4%/hr. I know there are a lot of variables that go into this but I would say it works as well DS Battery Saver. I have also used JD but never really liked that app. I will continue to use this app to see what the long term would be on here but its a good find in my opinion.
If nothing else try it out for a week or so and compare stats. I use Better Battery Stats to get my info from.

Has anyone compared this to the relatively new "Greenify" battery saving app?
http://forum.xda-developers.com/showthread.php?t=2155737
Anything that suggests it saves battery makes me nervous. Because the only way to do that is to shut down apps. And when you shut down the app, it may not get updated, or it may open very slowly when you do need it, etc.

I did not like it much... i am guessing that all this app does is change sync frequencies of different apps. To do it it tries to determine your location so that it can turn sync off/on or change sync interval based on your prior usage patterns.
Once it was out of learning mode, i noticed that my s3 battery drain was quicker due to excessive usage of maps by this app.
I uninstalled the app... and have got my battery life back.
Sent from my GT-N8013 using Tapatalk

CZ Eddie said:
Has anyone compared this to the relatively new "Greenify" battery saving app?
http://forum.xda-developers.com/showthread.php?t=2155737
Anything that suggests it saves battery makes me nervous. Because the only way to do that is to shut down apps. And when you shut down the app, it may not get updated, or it may open very slowly when you do need it, etc.
Click to expand...
Click to collapse
I just downloaded it and Greenified Facebook, ESPN Radio and ScoreCenter so far too see if I notice any difference.
Sent from my SAMSUNG-SGH-I747 using XDA Premium HD app

I don't like this app. It turned off almost all my syncing for my Google account lol. I was wondering why I wasn't getting my emails lol
(⊙＿⊙)

[Q] horrible battery life since KitKat update Sprint g2.

Any other g2 users having major battery issues? Sprint g2, some apps and bloatware frozen/removed. Rooted as well. Battery dropped 38 percent in 4 hours with little to no use. Location services are off. Shows that android operating system using around 40 percent. Any idea of what is causing this? So far, not loving the update and the issues its having.

Absolutely not... Quite the opposite. I'm on a custom ROM but I used ZV7 ZV8 & ZVA before with no issues. That's one great thing about the G2 is the Snap Dragon processors are great on the battery, a charge lasts a long time and the battery never gets hot even with constant tethering and heavy usage. You should try the Snap Dragon battery guru app in the play store at: play.google.com/store/apps/details?id=com.xiam.snapdragon.app which is great for saving juice. Or takes a couple days to get full effect cause it learns your patterns and stops apps from refreshing during times when you don't use them, cuts of WiFi and or data during times when you aren't using it. Also I'd check your battery usage stats and see what processes are draining it the most. Is most likely an app or 2 draining a lot of your battery, so the battery guru will stop that from happening during times that you don't use those apps.
Sent from my LS980 4G using Tapatalk

Its very common after a firmware update for a battery to go outta whack. It may be that you need to recalibrate it. After any firmware update its adviseable to so a factory reset at 100% battery level. Then use your phone normally till the battery dies and phone shuts down. Plug in the phone and let it charge to 100% while off. Turn it on, and use it till the batt dies again. Repeat charging to 100% with phone off.
That may solve your issue. Fully cycle the battery 2x.

sudosurootdev said:
Absolutely not... Quite the opposite. I'm on a custom ROM but I used ZV7 ZV8 & ZVA before with no issues. That's one great thing about the G2 is the Snap Dragon processors are great on the battery, a charge lasts a long time and the battery never gets hot even with constant tethering and heavy usage. You should try the Snap Dragon battery guru app in the play store at: play.google.com/store/apps/details?id=com.xiam.snapdragon.app which is great for saving juice. Or takes a couple days to get full effect cause it learns your patterns and stops apps from refreshing during times when you don't use them, cuts of WiFi and or data during times when you aren't using it. Also I'd check your battery usage stats and see what processes are draining it the most. Is most likely an app or 2 draining a lot of your battery, so the battery guru will stop that from happening during times that you don't use those apps.
Sent from my LS980 4G using Tapatalk
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Thank you @bigpoppa and @sudosurootdev I will try both suggestions. I've got snapdragon app downloaded now. Haven't did a full cycle charge on it yet though. Normally had great battery life, even on aosp roms. Could be that I am just impatient too though haha.

Battery life is greatly affected by weak signals. It drives up the power to get you signal
Sent from my LG-LS980 using xda app-developers app

My signal has actually been a great deal weaker since the update. I live in an.area where there is only 3g/1x data. Used to get around 1.8 mbps download...now only getting around 600kbps. Pretty much just sucks.
Sent from my LG-LS980 using xda app-developers app

I'm having the same issue. It's wakelock WifiOffDelayIfNotUsed. I've tried everything I can think of, but it's completely keeping my phone from deep sleep.

I did one full cycle charge. Took it off the charger at around 10am yesterday. Almost 21 hours later, sitting at 35%. Doing a little better than before. Bluetooth keeps showing on my list of wake locks but it's disabled.
Sent from my LG-LS980 using xda app-developers app

I got the ZVC OTA, then I flashed the zvc .tot after accidently deleting supporting services for voice mail (Skyfire Observer and Sprint Extension provider) after flashing Im at 7hrs 30mins Screen Time surfing web with 15% battery left on first day, before that I got little over 6hrs with 0% battery and all the same apps. Do a factory reset after OTA that might help or flash the ZVC.tot for a complete fresh install like I did.
Just an FYI Swype connect is a known battery killer for some its mentioned on their forums and it sometimes runs even when all connect features are blocked.
Another thing block location services when not needed it will save a nice amount of battery life.

joshuajones said:
I'm having the same issue. It's wakelock WifiOffDelayIfNotUsed. I've tried everything I can think of, but it's completely keeping my phone from deep sleep.
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I noticed that this morning. I went into wifi settings and clicked advanced and unchecked "scanning always available". Im using "liquid Smooth 4.4 so I don't know if yours have it.

kwdan said:
I noticed that this morning. I went into wifi settings and clicked advanced and unchecked "scanning always available". Im using "liquid Smooth 4.4 so I don't know if yours have it.
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I think its a problem with 4.4.2, google is fixing that in 4.4.3. Also make sure Sprint Connections Optimizer is really off.

The only issue I've seen is Bluetooth showing up under battery stats as being used at around 50-55% yesterday with a runtime of over a day. I'm thinking its just a reporting bug since I haven't used Bluetooth at all and I don't see a noticeable drop in battery but if it is using it I'd definitely like to curb it.
anyone with a similar issue or possible idea on fixing it? Running stock zvc unrooted
Sent from my LG-LS980 using xda app-developers app

thearch1tect said:
The only issue I've seen is Bluetooth showing up under battery stats as being used at around 50-55% yesterday with a runtime of over a day. I'm thinking its just a reporting bug since I haven't used Bluetooth at all and I don't see a noticeable drop in battery but if it is using it I'd definitely like to curb it.
anyone with a similar issue or possible idea on fixing it? Running stock zvc unrooted
Sent from my LG-LS980 using xda app-developers app
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That's weird, never had that happen to me. Did you Factory reset after OTA? Sometimes that helps.

abhinav.tella said:
That's weird, never had that happen to me. Did you Factory reset after OTA? Sometimes that helps.
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No I haven't. I guess I'll give that a shot. But sucks to have to redownload my apps n such for that.
Sent from my LG-LS980 using xda app-developers app

Im getting 30 hours with 3 hours screen on time since the update but i did a factory reset after thr update and dont have all my apps installed
Sent from my LG-LS980 using XDA Premium 4 mobile app

jonapunk said:
Im getting 30 hours with 3 hours screen on time since the update but i did a factory reset after thr update and dont have all my apps installed
Sent from my LG-LS980 using XDA Premium 4 mobile app
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Do you have location settings and google now enabled?

I don't get the people who say they get 7 hours sot out of this phone. I have two of these and even with complete stock no after market apps the best I do is 3-4
Sent from my LG-LS980 using XDA Premium 4 mobile app

abhinav.tella said:
Do you have location settings and google now enabled?
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Yes i do tonight ill post screen shots
Sent from my LG-LS980 using XDA Premium 4 mobile app

wcr84 said:
I don't get the people who say they get 7 hours sot out of this phone. I have two of these and even with complete stock no after market apps the best I do is 3-4
Sent from my LG-LS980 using XDA Premium 4 mobile app
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I get 7.5 hrs and 15% battery left at 50% Brightness, location and autosync drain battery a lot as I mentioned before. Also use task manager to autoblock Sprint apps and uncheck Sprint Connections Optimizer it eats battery, Lastly Swype connect runs even when online features are disabled and eats battery, there are many complaints about that on Swype forum as well.
Im mostly on WiFI and have full signal due to Airave (no LTE) so I guess that helps too. All those things add up, I'm sure you can achieve that screen time as well.

By factory reset, do you guys mean in settings? I need to reset, but I don't have a computer at the moment so I can't reflash tot.