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Battery calibration HELP

So I love the phone but I just can't stand this battery anymore I'm starting to think t mobile gave me a used battery. Ive tried draining the battery to 0 then charging it to 100 nothing. I tried the restart nothing. I work from 8 to 4 and I start the day with 100 and end with 10 if I'm lucky! As I'm typing this its at 87% and its only 9:04. Running services like app pack car home and such are off wifi is off brightness at 50 and I kill tasks a lot with ATK can someone please give me a step by step on how to calibrate even if I have to mod the phone Thank you =)
Sent from my LG-P999 using XDA App

I'm having the same issue as well. I just received my phone yesterday and I charged it fully last night and kept it unplugged over night. Overnight it only lost about 3%. But after medium ussage this morning which consisted of checking email/texting/surfing the web, the battery dropped a significant 25% over the course of 40 minutes. Any suggestions?
Sent from my LG-P999 using XDA App

Root phone if you havent already
Charge phone to 100%
Flash clockworkrecovery
Boot into recovery and under the advanced menu select "Wipe Battery Stats"
Reboot

Rocco0891 said:
I'm having the same issue as well. I just received my phone yesterday and I charged it fully last night and kept it unplugged over night. Overnight it only lost about 3%. But after medium ussage this morning which consisted of checking email/texting/surfing the web, the battery dropped a significant 25% over the course of 40 minutes. Any suggestions?
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
That kind of behavior is normal. The phone loses very little while idle but checking email and web surfing both require a data connection and that uses a lot of power. More usage = faster battery drain.

My galaxy s would easily last a full day with constant email/text and a couple hours of talk. This phone doesn't even seem to be able to last me a few hours. Do you also experience this significant battery loss?
Sent from my LG-P999 using XDA App

You prolly need to do a factory reset. For some reason some peoples phones use more power even at idle than they should. My phone was one of them. There is a whole thread about it but pretty much doing a factory reset should correct this issue. Did for me. I get almost twice the battery life of my Galaxy S.

regP said:
Root phone if you havent already
Charge phone to 100%
Flash clockworkrecovery
Boot into recovery and under the advanced menu select "Wipe Battery Stats"
Reboot
Click to expand...
Click to collapse
No need to go into recovery to wipe the stats, just use Battery Calibration(requires root) its in the market and also includes instructions on how to use the app.

Berat said:
No need to go into recovery to wipe the stats, just use Battery Calibration(requires root) its in the market and also includes instructions on how to use the app.
Click to expand...
Click to collapse
true story. ive never used it so it didnt come to mind lol.

In the passed hour I've now lost 40%. That can't be right, can it? :/ I'm running everything stock btw and I'm unfamiliar with rooting and things of that nature.
Sent from my LG-P999 using XDA App

I had the same problem. I followed the thread below and it worked. I've ben getting 10-15 on moderate-heavy use. I also did the htc battery calibration before I ran the battery calibration app. I use juice defender as well.
http://forum.xda-developers.com/showthread.php?t=1054420
Sent from my LG-P999 using XDA App

Rocco0891 said:
In the passed hour I've now lost 40%. That can't be right, can it? :/ I'm running everything stock btw and I'm unfamiliar with rooting and things of that nature.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
Check out the link jsauce75 posted. If you are running stock that means you most likely have background services running that are pulling significant battery. You will need to root and then use titanium backup to either remove or freeze those services.
Before doing that thought I would download Battery Monitor Widget. Use it to see how much power (mA) your phone is using. When I first got mine I was draining battery fast and when I used that widget I learned that the phone was using over 100mA even when idle. It was like the phone would never go into a sleep state. After doing a factory reset my phone idles at 1-2mA.
There isnt much you can do about battery drain while you use the phone because the screen and data connection are huge battery drains. All these tips are to improve your power consumption while idling. As I said before all I have done is factory reset and removed unneeded services and I have been getting double the battery life of my Galaxy S with the exact same apps and usage for weeks now.

Rocco0891 said:
In the passed hour I've now lost 40%. That can't be right, can it? :/ I'm running everything stock btw and I'm unfamiliar with rooting and things of that nature.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
1) You said you're using ATK "a lot". This is adding fuel to the fire. ATK is not needed with today's android systems. These apps you see sitting in ATK are sitting dormant. It's like the task manager of a computer. I have 3-4 apps running in my system tray and around 20 other services running in my task manager.. They are all sitting dormant, using zero CPU. They have ram allocated to them. That's it. That's the same as the Android. They are sitting dormant, and they have memory allocated to them. The best thing about the android OS is that it will automatically shut down dormant apps on its own. A PC doesn't do that. So, look at it this way. Let's say I'm on my laptop's battery. I have 20 apps/services running, and they are dormant. They are doing nothing towards drainage of my battery. But, I decide to turn on my screen "a lot" during the day, and kill the apps. Boom... Battery usage for the CPU to turn the screen on, the screen takes away from the battery, usage for the task monitor to be running.. Then, there is a process to shut down the apps, that takes battery.. Then on top of all that.. When the apps restart on their own.. guess what, they have CPU/Battery usage. You're adding fuel to the fire.... a lot of it, imho.
2) Install Watchdog and Titanium Backup (pay the small fee so you can freeze the apps.. or you can learn how to manually remove them yourself. I like using the app). Now, just to prove the point.. Open up ATK... Then go into Watchdog.. You'll see the apps that are running in ATK are not using any CPU. But.. when they do start up/shut down, there is some usage going on that will contribute. So with Titanium backup, freeze the apps. The apps I have frozen: AppPack, Broswer (have dolphin installed instead), Car home (2 of them?), com.android.provider. applications, com.logmein.resecuesecurity and .rescue, email (using gmail instead), My account (2 of them?), nfs shift, nova, street view, tmo TV, tegrazone, telenav, videochat voice dialer, zinio reader, zsprovider. From there, you can see the apps running in watchdog and you don't need ATK.. But, watchdog also uses processor to "monitor" the usage of other apps.. So place the threshold setting at like 40%, and the frequency at 3 or 5min. This will keep Watchdog from using too much battery, but it'll also notify you if an app is running wild on cpu usage. Maybe for 1 day, put the threshold at 30% or maybe even 20%.. so you can see if 1 or 2 apps are using a lot of power. If they are system apps or apps you want.. just leave em be. If they are not, freeze them/uninstall them.
3) I have found that using wifi and wifi calling GREATLY increases my battery life. As soon as I turn on 2g/3g/4g... my battery starts to take a fast dive. Whenever possible, use wifi/wifi calling...
4) Screen down to the lowest brightness setting. Shut off screen manually whneever you are done, or set it to 15sec shut off. I only bump up the brightness when i'm outdoors.. The glare makes the low setting impossible to see the screen.
5) Shut off syncing, bluetooth, and gps unless you need it. If you're around a computer at all where you can get your email and such, there is no need to use the phone for it. I only use tmo's network and syncing when I'm away from work or the house... typically when I'm on the road.
Lastly, yes, some people want to use their phone... use the 4g service.. etc. I understand.. But also understand that if you're going to use the phone like a computer.. and you're going to get 8hrs out of the battery... I say that's pretty dam good. This post is not meant to say that there is nothing wrong w/ the battery... It's to help you out to determine if there is a problem in the first place. There was a guy complaining about battery usage left and right. When I got involved in disussions with him, he admitted that he's on his phone all day long... txting quite a bit. Well.. duh?
I don't doubt there could be some challenges with a bad app running wild, a bad battery, etc. But I also don't doubt there are people who are using the crap out of a dual core phone.. and are doing things themselves to add to the problem... and then they blame the phone.
That's my 2c....

schmit said:
1) You said you're using ATK "a lot". This is adding fuel to the fire. ATK is not needed with today's android systems. These apps you see sitting in ATK are sitting dormant. It's like the task manager of a computer. I have 3-4 apps running in my system tray and around 20 other services running in my task manager.. They are all sitting dormant, using zero CPU. They have ram allocated to them. That's it. That's the same as the Android. They are sitting dormant, and they have memory allocated to them. The best thing about the android OS is that it will automatically shut down dormant apps on its own. A PC doesn't do that. So, look at it this way. Let's say I'm on my laptop's battery. I have 20 apps/services running, and they are dormant. They are doing nothing towards drainage of my battery. But, I decide to turn on my screen "a lot" during the day, and kill the apps. Boom... Battery usage for the CPU to turn the screen on, the screen takes away from the battery, usage for the task monitor to be running.. Then, there is a process to shut down the apps, that takes battery.. Then on top of all that.. When the apps restart on their own.. guess what, they have CPU/Battery usage. You're adding fuel to the fire.... a lot of it, imho.
2) Install Watchdog and Titanium Backup (pay the small fee so you can freeze the apps.. or you can learn how to manually remove them yourself. I like using the app). Now, just to prove the point.. Open up ATK... Then go into Watchdog.. You'll see the apps that are running in ATK are not using any CPU. But.. when they do start up/shut down, there is some usage going on that will contribute. So with Titanium backup, freeze the apps. The apps I have frozen: AppPack, Broswer (have dolphin installed instead), Car home (2 of them?), com.android.provider. applications, com.logmein.resecuesecurity and .rescue, email (using gmail instead), My account (2 of them?), nfs shift, nova, street view, tmo TV, tegrazone, telenav, videochat voice dialer, zinio reader, zsprovider. From there, you can see the apps running in watchdog and you don't need ATK.. But, watchdog also uses processor to "monitor" the usage of other apps.. So place the threshold setting at like 40%, and the frequency at 3 or 5min. This will keep Watchdog from using too much battery, but it'll also notify you if an app is running wild on cpu usage. Maybe for 1 day, put the threshold at 30% or maybe even 20%.. so you can see if 1 or 2 apps are using a lot of power. If they are system apps or apps you want.. just leave em be. If they are not, freeze them/uninstall them.
3) I have found that using wifi and wifi calling GREATLY increases my battery life. As soon as I turn on 2g/3g/4g... my battery starts to take a fast dive. Whenever possible, use wifi/wifi calling...
4) Screen down to the lowest brightness setting. Shut off screen manually whneever you are done, or set it to 15sec shut off. I only bump up the brightness when i'm outdoors.. The glare makes the low setting impossible to see the screen.
5) Shut off syncing, bluetooth, and gps unless you need it. If you're around a computer at all where you can get your email and such, there is no need to use the phone for it. I only use tmo's network and syncing when I'm away from work or the house... typically when I'm on the road.
Lastly, yes, some people want to use their phone... use the 4g service.. etc. I understand.. But also understand that if you're going to use the phone like a computer.. and you're going to get 8hrs out of the battery... I say that's pretty dam good. This post is not meant to say that there is nothing wrong w/ the battery... It's to help you out to determine if there is a problem in the first place. There was a guy complaining about battery usage left and right. When I got involved in disussions with him, he admitted that he's on his phone all day long... txting quite a bit. Well.. duh?
I don't doubt there could be some challenges with a bad app running wild, a bad battery, etc. But I also don't doubt there are people who are using the crap out of a dual core phone.. and are doing things themselves to add to the problem... and then they blame the phone.
That's my 2c....
Click to expand...
Click to collapse
Thanks for the great detailed response. The OP actually was the one who stated he uses ATK, I don't. I looked through the thread with the recommendations for 20+ hour battery life and noticed that those apps you mentioned above required rooting the phone. I hate to sound so naive when it comes to this stuff but i'm a fairly new android user and have not yet discovered a lot of the technical aspects behind it all. I'm not exactly sure what rooting is and what it entails. Is it something you suggest I do? Also, my battery is slowly approaching 0%. Should I let it drain all the way before charging it again? Others suggested letting it drain all the way and doing a factory reset and that seemed to help their issues.

By default Android restricts certain areas of the OS from being accessed by third-party applications (prolly for security reasons). Only problem is a lot of great apps require such access to function properly. In order to give them that access you must root the phone.
Here is the rooting thread. It is extremely easy to do.
http://forum.xda-developers.com/showthread.php?t=1039985

regP said:
By default Android restricts certain areas of the OS from being accessed by third-party applications (prolly for security reasons). Only problem is a lot of great apps require such access to function properly. In order to give them that access you must root the phone.
Here is the rooting thread. It is extremely easy to do.
http://forum.xda-developers.com/showthread.php?t=1039985
Click to expand...
Click to collapse
Thanks.
Does rooting affect warranty in any way?
or the ability to perform a factory reset for that matter?

Rocco0891 said:
Thanks for the great detailed response. The OP actually was the one who stated he uses ATK, I don't. I looked through the thread with the recommendations for 20+ hour battery life and noticed that those apps you mentioned above required rooting the phone. I hate to sound so naive when it comes to this stuff but i'm a fairly new android user and have not yet discovered a lot of the technical aspects behind it all. I'm not exactly sure what rooting is and what it entails. Is it something you suggest I do? Also, my battery is slowly approaching 0%. Should I let it drain all the way before charging it again? Others suggested letting it drain all the way and doing a factory reset and that seemed to help their issues.
Click to expand...
Click to collapse
New to android is not an excuse, I was a religious crackberry user for the last 8 years, and I just switched over to android last month. I'd suggest you to root you phone so that you can remove the stock cr4pwares, and the ability to install custom ROMs. Took me 10 mins to figured out how to install andriod OS into my hd2, 25 mins to perm rooted and unlocked my g2(this beast is little bit more "lockdown" than the other), and 5 mins to rooted the g2x. Google is your friend, bud. If you want something more out of your g2x, use the "search" button. Just my 2 cents.

Rocco0891 said:
Thanks.
Does rooting affect warranty in any way?
or the ability to perform a factory reset for that matter?
Click to expand...
Click to collapse
FYI: I'm a first time android user (smartphone user at that..) and I rooted my phone easily. You can unroot your phone just as easy as you rooted it. It's a 1 click method with that software.. check out the link. Seriously, it's easy.
You may have to have ABD ADB or whatever installed first.. Not sure. I heard about it, and did it... and then rooted.. and it worked.

Thanks for the help guys, appreciate it. I'll let you know how it goes
I'm also having another issue with the phone. I'll see if you guys can help without having to make a new thread.
Yesterday I installed Zedge and downloaded one of the wallpapers there. When I applied the wallpaper I noticed a bit of lag on my home screens, so I reverted back to the default wallpaper and the lag was still there. I deleted the app and wallpaper I downloaded but the lag was still there. I applied a default live wallpaper and the lag disappeared and everything was moving as smoothly as it had been originally, but when I apply the regular wallpaper the lag persists. Any ideas?

now if u do root and remove bloatware what all is safe to remove i have all but my account car home and i think one other can anyone provide a definite list and battery is significantly better after just that

LOL think there's not driver issues. Swapped a dead battery with a fully charges one today and been running almost 2 hours still shows 1%
Sent from my LG-P999 using XDA Premium App

[Q] Battery draining extremely fast. Any suggestions?

This rom used to be fine, now it is draining extrememly fast and I don't know why.
I am on Gingerbread KF2 and really haven't done anything else yet. I used to be able to make it through an average day of ~15 or so hours using the phone only for some messages, a call or two, and a few minutes of music. After this type of usage, the battery would be around 70-80% at the lowest usually. This is even with the screen at FULL brightness all day.
About a week ago, it started draining super fast. The same usage runs the phone down to about 20-30%, which is ridiculous. In battery stats, Android OS is always FAR above everything else with like 60%. A couple battery calibrations did nothing. I don't use task killers, but I do check my running apps. OS monitor didn't help me at all, and checking my currently running apps just showed mostly system apps that should not be draining hardly any battery at all.
Any suggestions? I think that about covers it all. This just has me stumped...

go through your apps and see how often they check for updates. there were a lot of updates recently and some settings may have changed. If nothing changed, can you do a quick scan with look out? Just to be safe. Also, try juice defender and set it to aggressive
Sent from my SGH-T959V using XDA Premium App

Lookout didn't pick up anything and I set JuiceDefender to aggressive. Will JuiceDefender warn me of an app using excessive battery?

Nope, that battery is still dropping like crazy. (8% in half an hour from almost no use.)
Maybe I just need to reflash and start over fresh...

It will take a day out two to settle in. is your phone sleeping properly when the screen in off? Press the volume keys once it locks and if it makes the sound then it if still on.
Sent from my SGH-T959V using XDA Premium App

jager555 said:
It will take a day out two to settle in. is your phone sleeping properly when the screen in off? Press the volume keys once it locks and if it makes the sound then it if still on.
Sent from my SGH-T959V using XDA Premium App
Click to expand...
Click to collapse
Sleeping just fine.

Yea, I guess if you can't figure it out, you can reflash. That is a pain though. I would say to try out jd for a while longer and see if you get results. fb us usually the culprit for my battery drains, but if you checked all of your apps and changed them to manual, then there isn't much more you can do.try putting your screen to auto brightness
Sent from my SGH-T959V using XDA Premium App

So either juice defender is helping or ADW launcher was using excesive battery. It is working better today after I switched back to launcher pro, but still going down pretty fast.
Sent from my SGH-T959V using XDA App

ADW doesn't really drain much battery for me. It actually uses less RAM compared to LauncherPro and Go Launcher (for me).
I think you should just try reflashing your ROM, maybe flashing the new GB ROMs too.
Also, are you sure you're doing the battery calibrations properly? That might also be an issue.

Maybe it's not your phone or ROM...
I've had several ROMs in the last few weeks and have noticed this behavior on many of them....after searching, I found this.
T-Mobile has apparently noticed some abnormal battery issues in areas with their "4G" HSPA+. They're asking people in their support forum for a bit of info to help them find the issue.
support[dot]t-mobile[dot]com /thread/3544
The problem was initially believed to be affecting the G2 only, but is now believed to be affecting all phones in their "4G" footprint that started when they updated their towers in late July. The update provides the government an emergency channel to use, but it appears that it may be causing network issues.

Thanks for bringing it up, this is affecting me too. i lose 20-40% battery PER HOUR of use on the phone at 25% screen brightness playing a card game online (no wifi, just on HSPA+). This is on a BRAND NEW flash of KH2 (GB 2.3.4).
The top half of the phone gets really hot and battery drains like crazy. ceasing data use cools it down and reverts to normal battery use.

Battery drain after rooting

I rooted my Sensation 4G for the first time yesterday, and was pretty happy with how smoothly everything went. However, I noticed during normal use today that the battery was being drained faster than usual. It dropped by about %20 within a two hour period - much faster use than during pre-root. I checked things that might have been draining it. But I found nothing new that could've been considered a possible culprit. I'm running the stock rom with Go Launcher EX. Has anyone else experienced this phenomenon after rooting?

Not without flashing a custom rom, and even that's a rarity. Rooting in general does not cause much extra to be run, so battery is virtually unaffected. Try fully discharging the battery and charging it back up to 100% without interruptions during the recharge. That usually clears up battery issues.

A better idea is to completely charge the battery until it is 100% and the led light turns green. Then while the phone is still plugged in go to your recovery menu and wipe the battery stats. This is not a recommended process, its a REQUIRED process every time you switch roms. That should fix the battery issues that you are having.

Thanks, I'll give that a try when this drains out. I also noticed that more RAM is being used now after rooting, which looks to be the result of too many apps opening in the background. It's strange that this didn't happen before either. I'm hoping something didn't go wrong in the rooting process that caused this.

Sketchy McSketch said:
Thanks, I'll give that a try when this drains out. I also noticed that more RAM is being used now after rooting, which looks to be the result of too many apps opening in the background. It's strange that this didn't happen before either. I'm hoping something didn't go wrong in the rooting process that caused this.
Click to expand...
Click to collapse
Are you using many apps that require root permission? And the battery stats is only reccomended, some people say its a myth and don't bother, but do it once for every new rom. And give it a few full discharge and recharge cycles before deciding the battery drain is high.
Sent from my Sensation using xda premium

I'm only running BatteryCalibration and Titanium Backup that need root permissions. I'm just seeing more regular apps running now than before. And I've been checking app activity through the Go TaskManager Widget if that means anything. I'll take the advice and calibrate the battery after it's at %100 and give it some time, although I didn't change ROMs yet. Would flashing a ROM and then calibrating have any possible effect on this?

sometimes it's only visual bug try to wait and it will be fixed
Sent from my GT-I9100 using xda premium

Sketchy McSketch said:
I'm only running BatteryCalibration and Titanium Backup that need root permissions. I'm just seeing more regular apps running now than before. And I've been checking app activity through the Go TaskManager Widget if that means anything. I'll take the advice and calibrate the battery after it's at %100 and give it some time, although I didn't change ROMs yet. Would flashing a ROM and then calibrating have any possible effect on this?
Click to expand...
Click to collapse
Task managers tend to cause more harm than good, they're okay to monitor but killing apps all the time drains battery. As far as ram usage goes, a good custom rom will work wonders, and depending on which one you pick, the battery should improve too, but as far as calibrating goes its the same on any rom. Most recomend wipes.
When charging to 100% I highly reccomend using an app called current widget, because the battery is out of calibration it won't show an accurate full battery if it won't show an accurate draining one. So use current widget and charge overnight, or as long as you can, leave the phone locked as much as possible and check the mA value every now and then, and even if the phone says 100% wait til the mA reads close to 0, mine usually doesn't show less than 15mA after an overnight charge. Then wipe stats.
Sorry for the essay but I've read a lot about this and current widget seems to be the best tool I've found.
Sent from my HTC Pyramid using xda premium

battery life is TERRIBLE on AOKP!

I was on GB and had amazing battery life!
Just flashed AOKP milestone 6 and I can can't watch
The battery drain.
I've read forums and not much help.
I DL better battery but don't really know how to use.
I tried formatting battery stats.
Any solutions?

I am having the same issue. I am going yo try cMIUI. what are you getting for battery life?
Sent from my SGH-T959V using xda premium

Are y'all sure it's not just because you're doing lots of stuff with your phone right now, having just flashed a new ROM?
If it's an extreme amount of battery drain, it might be some leftovers from whatever you had last. You could try a factory reset and then see how stock AOKP handles battery drain.
I know I don't get battery life as good as I did with Octane, but a big part of that is because I've been flashing the new AOKP builds every couple of days, so things don't get a chance to settle down. (Granted, battery life still isn't as good as when I just flashed Octane.)

There is tons of things regarding this very issue in the AOKP q & a thread. Please use the search this thread button in that thread. Ive typed a response atleast four times today. And atleast four yesterday and more the day before and the day before that. NOt trying to be a ****, but Im tired of typing and responding. If you cant be bothered to read the thread or search I cant be bothered to respond anymore.

Not sure for sure.
But I get 5-6 hours on full charge with medium use(text. Instagram. Web.)
How can I get exact info?

Read the AOKP Q&A, yes, the whole thing
Read the OP's instructions on the AOKP dev thread
Read the thread on Bettter Battery Stats
Listen to what people say about battery use
Think about what you have done and what to try next
Do
Rinse
Repeat
Ask yourself "Why am I flashing ICS at all?" -- ICS in the SGS4G is still very much in development.

I don't think you realize how unreasonable it is to ask someone to read that entire Q&A. I've followed the thread from its beginning, and there's no real solution to the battery issue being described here. You'd only be wasting everyone's time who took your advice. I've also read all of OP's instructions in the AOKP dev thread, and have even tried the gremlin remover prior to flashing AOKP. This does not solve the battery issue. You're seeming to imply that the battery issue is the user's fault, and I think that's not even remotely close to the truth. I've done multiple flashes, each time trying something different, to see if I did anything to cause the horrible battery in AOKP, and they all concluded the same way. With that said, we need to actually try to fix this, instead of sending people in circles and pretending to fix it.

First of I dont have battery issues at all with AOKP I am a User a very grateful user (thx 2 our devs). Just factory reset, after that wipe cache, system, everything except your sd card of course) and the flash your rom. Its really a matter of re-assuring everything is wiped. Also leave your phone alone for awhile I left mine around 2 hrs alone, while the rom settles.

jeffsf said:
Read the AOKP Q&A, yes, the whole thing
Read the OP's instructions on the AOKP dev thread
Read the thread on Bettter Battery Stats
Listen to what people say about battery use
Think about what you have done and what to try next
Do
Rinse
Repeat
Ask yourself "Why am I flashing ICS at all?" -- ICS in the SGS4G is still very much in development.
Click to expand...
Click to collapse
Go to the Gremlin Remover dev thread, and try steps 1-3. If you are STILL having exaggerated battery loss, try using gremlin remover it'self. If you still have problems, after making it back to your preferred rom, just put the phone down for a while.

adobrakic said:
You're seeming to imply that the battery issue is the user's fault, and I think that's not even remotely close to the truth. I've done multiple flashes, each time trying something different, to see if I did anything to cause the horrible battery in AOKP, and they all concluded the same way. With that said, we need to actually try to fix this, instead of sending people in circles and pretending to fix it.
Click to expand...
Click to collapse
Some of us are getting good-very good battery life, and some of us are not - using the same exact ROM. I don't know what that tells you, but what it tells me is that it *is* likely to be a user issue.
People complain about battery life, but they hardly ever talk about the total time they are using it (including fiddling around with it), what programs they have used or have installed, and how they are restoring after they flash (i.e., if there is a chance they are bringing along bad stuff from a previous incarnation of the phone). More information about these things and - yes - doing tedious things like the process of elimination might be enlightening here.

adobrakic said:
I don't think you realize how unreasonable it is to ask someone to read that entire Q&A. I've followed the thread from its beginning, and there's no real solution to the battery issue being described here. You'd only be wasting everyone's time who took your advice. I've also read all of OP's instructions in the AOKP dev thread, and have even tried the gremlin remover prior to flashing AOKP. This does not solve the battery issue. You're seeming to imply that the battery issue is the user's fault, and I think that's not even remotely close to the truth. I've done multiple flashes, each time trying something different, to see if I did anything to cause the horrible battery in AOKP, and they all concluded the same way. With that said, we need to actually try to fix this, instead of sending people in circles and pretending to fix it.
Click to expand...
Click to collapse
Ya know when I first came here I said something similar. But Ive kept up with these threads now and I know for a fact battery life issues have been discussed to a point that the devs are ready to pack up and leave. Nobody wants to read or even search. Instead the battery life issues are blamed on the shotty coding of the people building these roms. If you are getting bad battery life it is plain and simple a user error. Unless you can provide logs stating otherwise then just drop it try what is being suggested or go back to stock roms. Install all the apps you need to customize the phone like it is on the ics variants and then report back here. I garandamntee you will have ****ty battery life.
These custom roms have so much stuff added to them that is hard coded in for customization that its not going to have super battery life like a unbloated stock rom. But you cant expect it to. A good comparision was made earlier in another thread. Would you expect to get 8 hours out of a laptop battery?

I always tell people to make sure to completely drain the battery....all the way until it shuts off, because mine will sometimes stay at 1% for nearly 2 hours.
Seems like it doesn't know its own scale until you do that a few times.
Also never ever ever restart this phone while having it plugged in or turn it on while plugged in.
Let me give you the scenario, it will be charging let's say around 50% and then after restart while plugged in right around 75-80% and that little act took me a long time to recalibrate my battery and I'm not talking about deleting the battery stats, I don't delete battery stats anymore at all (read an article from Google saying its pointless)
All that said I'm a very heavy user, and I like a bright screen and I'm getting (what I would consider) good battery life. But I have a 3500mah so its never too bad for me
Hope this helps someone
Sent from my SGH-T959V using xda premium

well me too experiencing super fast battery drain
i have flashed aokp milestone latest build by wiping factory reset.
also allowed to sit the phone for 1o mins
my wifi,bluetooth,gps remains off all the time, also screen brightness is at its lowest.
on moderate texting the phone wont last more then 4 hours
Sent from my SGH-T959V using xda app-developers app

I'm on aokp

I'm on AOKP, and my battery life is GREAT. There are plenty of steps and tips mentioned here to find out what your battery problem is.

I would like to see screen shots of the battery usage of people that have crappy battery.
From home hit menu>settings>scroll down a bit to battery.
Take two screenshots one of the initial screen, then touch the graph at the top and take one of that screen.
I keep hearing battery life is horrible I only get 4 hours, please fix this, hows battery life..blah blah blah battery. Yet nobody will drop usage stats, logs of a days use, offer anything but i use my phone moderately. I call bull**** on that, How many texts do you get/send in a day? How long are you on the phone making calls? Do you live in a poor service area? Give some info.
On a average day I get about 50 texts, might make a 20 minute call, use tapatalk a half dozen times, and use tweetcaster and flipboard a dozen times. I can get 12-15 hours out of a full charge. To me that is light to moderate use. I get crappy data where Im at right now so Im on wifi A LOT. When Im actually using t-mo data more I can get closer to 18 hours out of a charge
People if your having problems with battery life stop rebooting the phone a hundred times a day. Stop shutting off all the radios thinking it will help. use the dang phone like it was meant to be used. None of the code is optimized for people to shut radios off and turn the phone into a dumbphone. You are making it worse by shutting these things down and turning them back on. It takes power to properly shut off bt, wifi, data. Next time you do watch the radio will not just instantly shut down. It has to power off all the service that is using it and then power down. Otherwise you would be here *****ing about tons of force closes.

I get about 17hours on my phone and i have a stock battery. I use all the extras PROVIDED TO US BY THE DEV like turn off wifi/date off or to 2g while phone screen is off. Auto bright and all the extras.

blazen2000 said:
I get about 17hours on my phone and i have a stock battery. I use all the extras PROVIDED TO US BY THE DEV like turn off wifi/date off or to 2g while phone screen is off. Auto bright and all the extras.
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^ THIS
I usually get 14-17 hrs doing the same. No battery issues. If you leave data/wifi on all day and are constantly checking email, Twitter, and Facebook what do you expect? Battery is fine.

Shortbus-Driver said:
I'm on aokp
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How much time do you spend on "screen"?
My phone usually drains 10% each 5hours of sleeping (air plane mode). Is that normal? I can get around 3hours of web surfing,which is less than it was on SCOM (4hours).
Sent from my SGH-T959V using xda app-developers app

Close to a day of battery , I turn on data when I want. Poor service area, my only issue is it stays awake more, but all functions work
Sent from my SGH-T959V using xda premium

[Q] How to increase battery life?

hey im a noob here so im sorry if this has been asked before but right now i upgraded my phone to ics and the battery life is horrible and im too cheap to get a battery extender so is there anything i can do to improve it or am i just going to have to deal with it?

Get your phone to 100% battery and then just play whatever you like until it completely dies. Then, plug it in to charge and dont touch it until it gets back up to 100%. That is supposed to increase the battery lasting time by 20%. It only works once...so dont do it 5 times hoping for results. This is supposed to be done when you first get the phone, but if its never been you've never done it, its worth the shot.
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rygtuu said:
hey im a noob here so im sorry if this has been asked before but right now i upgraded my phone to ics and the battery life is horrible and im too cheap to get a battery extender so is there anything i can do to improve it or am i just going to have to deal with it?
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Click to collapse
Let the ROM 'soak' in. It'll get better. You are probably busy messing with it figuring out all the features which is normal and makes the battery seem terrible. But overall it is pretty good.
And the post above is an old wives tale these days. It's funny to read people still recommending it.

lumin30 said:
Let the ROM 'soak' in. It'll get better. You are probably busy messing with it figuring out all the features which is normal and makes the battery seem terrible. But overall it is pretty good.
And the post above is an old wives tale these days. It's funny to read people still recommending it.
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Kinda, when you first flash with a factory reset, you don't have a battery stats file. This is another good reason to flash when your battery is 100% charged. When Senior Members here say "soak in", they are saying that the first boot all of the system apk (application packages) are cached to /cache. Doing too much while these apps are being cached screws up the statistics of the battery stats. If I really want good battery life, I totally wipe, and let the phone sit for 10-15 minutes. I leave usb plugged in till it's 100%, then pull the usb and use the phone until it totally dies.
By this time, the day is over and it needs to be charged anyways. I plug it into the charger before bed and let it charge up all the way with nothing running (no wifi, no bt, no background apps running).
After that charge, battery life seems soo much better. ymmv. it would be good to know if that works for you too.
Otherwise, everyone uses their phone differently, and some people install stupid apps that have intensive background services running that eat batteries, then complain about the rom sucking instead of introspecting about how they use their phone.

bhundven said:
Kinda, when you first flash with a factory reset, you don't have a battery stats file. This is another good reason to flash when your battery is 100% charged. When Senior Members here say "soak in", they are saying that the first boot all of the system apk (application packages) are cached to /cache. Doing too much while these apps are being cached screws up the statistics of the battery stats.
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Just to clarify - battery stats file have nothing to do with battery performance and the battery stat file "is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point)." Google Engineer Dianne Hackborn

ahh ok thanks guys ill do what you guys said and see if it helps

you can also install one of the battery saver apps on the market, like juice defender or similar. They will typically help and some can control how often background services are allowed to collect data.

mike-y said:
you can also install one of the battery saver apps on the market, like juice defender or similar. They will typically help and some can control how often background services are allowed to collect data.
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These arent as helpful as they use to be. I have seen and challenged people to run with and without and the added battery life is either very minimal or actually worse with these apps.
Battery saver apps where created when android was very young and had bad management of the battery power. The way it works now it should lower the power to the radios low enough to save battery but not completely shut off the radios. Shutting them off will actually harm battery life because it takes so much more power to turn them on and off repeatedly then to let them idle.

no i think it was more designed for froyo and gb because if you try those battery savers in froyo or gb you can see it works and battery last long but if you test it in ics or jb (i have test juice defender with jb in the sgs3) and what i can see its that sometimes it lags (not always just when you like two or three apps open which for me in the sgs3 was weird) and data sometimes hangs i mean it doesn't load pages
Sent from my SGH-T959V using Tapatalk 2

Download Gemini from the play store and manage the autorun for apps. That's what I do and it saves quite a bit of battery
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solrac1212 said:
no i think it was more designed for froyo and gb because if you try those battery savers in froyo or gb you can see it works and battery last long but if you test it in ics or jb (i have test juice defender with jb in the sgs3) and what i can see its that sometimes it lags (not always just when you like two or three apps open which for me in the sgs3 was weird) and data sometimes hangs i mean it doesn't load pages
Sent from my SGH-T959V using Tapatalk 2
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Click to collapse
Ill agree with you on froyo but gingerbread towards the end was much better.
The biggest thing is people dont realize how much power is used to start and stop things. Letting them idle will use battery but not nearly as much if you start and stop many times a day. Now at night if you want to turn off those things then yeah go for it. But if you are a frequent phone checker then starting and stopping them everytime will chew through the battery.
A good example is this, its summertime go outside and look at your electric meter when the ac first turns on. It will spin reeal fast for a minute or so while the system gets everything going then it will slow down. This same thing applies to your phone and its radios. Each time you shut it off it has to go through a process so you dont get corrupted data. And when you turn it on it has to use a lot of battery to make sure things dont get messed up and get to the proper operating form.
So any app that shuts off the radios manually and such will end up costing you battery if you are a power user.

If you can follow the steps exactly as i wrote them, then install the team FAH-Q kernel found in the dev section...
Sent from my SGH-I727 using xda app-developers app

thomas.raines said:
If you can follow the steps exactly as i wrote them, then install the team FAH-Q kernel found in the dev section...
Sent from my SGH-I727 using xda app-developers app
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I put FAH-Q kernal on AOKP and it seemed to help a bit. I was using systempanel and it said facebook was sucking cpu at night while the phone was resting... so i took off facebook for the moment to see if any other apps/processes could be causing a drain.
side note:
I spend 15-20 min in the morning going through stuff on my phone. Then I will listen to music in the car on my way to work 35 min. My phone will be at 80% by the time i walk in to work. I check things during the work day once and a while and by 2pm I will be around 40%. leaving work I will have 35-30% .... ok i'll just quit now and say running 12hrs i will have about 15% left. I think I am an average phone user. not sure how much everyone else uses theirs.

justiz33 said:
I put FAH-Q kernal on AOKP and it seemed to help a bit. I was using systempanel and it said facebook was sucking cpu at night while the phone was resting... so i took off facebook for the moment to see if any other apps/processes could be causing a drain.
side note:
I spend 15-20 min in the morning going through stuff on my phone. Then I will listen to music in the car on my way to work 35 min. My phone will be at 80% by the time i walk in to work. I check things during the work day once and a while and by 2pm I will be around 40%. leaving work I will have 35-30% .... ok i'll just quit now and say running 12hrs i will have about 15% left. I think I am an average phone user. not sure how much everyone else uses theirs.
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Music soaks up a lot of battery as well as display, data, and sync. You can try turning off sync and data when you don't need them. But it sounds like you are doing better. I am still concerned with what else you have running in the background though... however, 12-16 hours isn't bad at all...
Sent from my SGH-I727 using xda app-developers app

bhundven said:
.... If I really want good battery life, I totally wipe, and let the phone sit for 10-15 minutes. I leave usb plugged in till it's 100%, then pull the usb and use the phone until it totally dies.
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What do you mean by totally wipe? do you mean go into recovery to wipe data, cache, and davlik cache? then restore after the battery is fully charged?

HKSpeed said:
What do you mean by totally wipe? do you mean go into recovery to wipe data, cache, and davlik cache? then restore after the battery is fully charged?
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Yes, as well as /system/ and at least .android_secure on your microSD
I would recommend against fully discharging your battery as a matter of course. While this might have been useful in the days of NiCads, deep discharges and heat are the Kryptonite of LiIon batteries.