Database Develop

battery is draining

I have decap 1.1 running on my revo. LTE is off, WIFI is off I thought with new ROM it may improve battery life but it drains out with in 5 hrs or so.
Anything I can do? any suggestions?

dastaak said:
I have decap 1.1 running on my revo. LTE is off, WIFI is off I thought with new ROM it may improve battery life but it drains out with in 5 hrs or so.
Anything I can do? any suggestions?
Click to expand...
Click to collapse
I did this with my phone...
http://forum.xda-developers.com/showpost.php?p=11803458&postcount=10
You can always go into settings, about phone, and check what apps are using power. You might as well turn LTE back on cause you're just wasting money if you're paying for something you're not using. Turn off B/g Data sync and try to manually sync all data instead. And the new google maps has been causing some issues according to things i've heard lately, even reviews on the market say so.

Since 4g and 3g are billed the same, how is he paying more for something he's not using? If you are in a 3g only area, or a weakly covered 4g area, go ahead and turn off that 4g. It's silly to drain your battery on a service that you aren't able to make use of anyways...

ozymandiaz said:
Since 4g and 3g are billed the same, how is he paying more for something he's not using? If you are in a 3g only area, or a weakly covered 4g area, go ahead and turn off that 4g. It's silly to drain your battery on a service that you aren't able to make use of anyways...
Click to expand...
Click to collapse
I was under the impression that when LTE[4G] is turned off via settings--> mobile network then he will only get 2G on his device. It was a mistake, I forgot Verizon would use 3G since no 2G is there. Of course I know when you leave a 4G area you revert to 3G/2G/GPRS<--for GSM, I said that since on GSM in settings you can only do 3G preferred, 2g only, 3g/2g auto...There's no way on GSM to get just 3G unless you leave the 4G area.

Ace42 said:
I did this with my phone...
http://forum.xda-developers.com/showpost.php?p=11803458&postcount=10
You can always go into settings, about phone, and check what apps are using power. You might as well turn LTE back on cause you're just wasting money if you're paying for something you're not using. Turn off B/g Data sync and try to manually sync all data instead. And the new google maps has been causing some issues according to things i've heard lately, even reviews on the market say so.
Click to expand...
Click to collapse
I tried the procedure in the forum doesn't work for me never shows 60% battery after reboot and inserting battery. Would you care to explain how you did it.
Many Thanks...

Ace42 said:
I did this with my phone...
http://forum.xda-developers.com/showpost.php?p=11803458&postcount=10
You can always go into settings, about phone, and check what apps are using power. You might as well turn LTE back on cause you're just wasting money if you're paying for something you're not using. Turn off B/g Data sync and try to manually sync all data instead. And the new google maps has been causing some issues according to things i've heard lately, even reviews on the market say so.
Click to expand...
Click to collapse
I tried it too for giggles sake, and no go. You pull the battery at anytime, and it doesn't run.
Edit... I lied. Plug it into the wall. It will go to the boot animation, without the battery in, but will black out, and the bottom lights will flash. And even though, I had a full charge before plugging in, after putting the battery back in, the LG symbol comes up. Then its telling me, its charging. Interesting. Going to the gym, and I will come back and see where I am at with charging.
Edit... Nifty. battery is reading 4181 at 100% I should have downloaded the battery widget before I did this, so I could have compared.
Should I, or do I need to recalibrate my battery every so often, or should it run like this from now on?
OH now I am mad!!!! How dare you show me how to calibrate my battery. LOL!! I have been unplugged for 2 hours and 15 minutes. I am down to 4133 and still at 100% Normally after 2 hours I am down to 90-95%. AWESOMENESS!!!!

markapowell said:
I tried it too for giggles sake, and no go. You pull the battery at anytime, and it doesn't run.
Edit... I lied. Plug it into the wall. It will go to the boot animation, without the battery in, but will black out, and the bottom lights will flash. And even though, I had a full charge before plugging in, after putting the battery back in, the LG symbol comes up. Then its telling me, its charging. Interesting. Going to the gym, and I will come back and see where I am at with charging.
Edit... Nifty. battery is reading 4181 at 100% I should have downloaded the battery widget before I did this, so I could have compared.
Should I, or do I need to recalibrate my battery every so often, or should it run like this from now on?
OH now I am mad!!!! How dare you show me how to calibrate my battery. LOL!! I have been unplugged for 2 hours and 15 minutes. I am down to 4133 and still at 100% Normally after 2 hours I am down to 90-95%. AWESOMENESS!!!!
Click to expand...
Click to collapse
I do it maybe every 2 or 3 months or even when you change ROMs. The ? @ 60% is a Droid/Moto things only you won't be seeing that on other phones, but the trick still seems to work nonetheless. You can get spare parts to see the battery reading if you don't want the widget.

So calibrating the battery really makes a difference for the lg revolution?
Sent from my VS910 4G using XDA Premium App

jackpot08 said:
So calibrating the battery really makes a difference for the lg revolution?
Sent from my VS910 4G using XDA Premium App
Click to expand...
Click to collapse
It's for any android phone, even the droid charge users do it, since they have bad life.
Sent from my HTC Glacier using XDA App

Ace42 said:
It's for any android phone, even the droid charge users do it, since they have bad life.
Sent from my HTC Glacier using XDA App
Click to expand...
Click to collapse
I'm seeing under About Phone -- Battery Use --
Cell Standby uses 62% off Battery
Phone Idle uses 21 % of Battery
Display uses 12% of Battery
Voice Calls uses 7% of Batter
The numbers for Cell Standby and Phone idle is usual? Do you guys see the same numbers? Anyway I can bring this down beside Plane Mode?

dastaak said:
I'm seeing under About Phone -- Battery Use --
Cell Standby uses 62% off Battery
Phone Idle uses 21 % of Battery
Display uses 12% of Battery
Voice Calls uses 7% of Batter
The numbers for Cell Standby and Phone idle is usual? Do you guys see the same numbers? Anyway I can bring this down beside Plane Mode?
Click to expand...
Click to collapse
Signal needs the juice and always uses a lot of power, phone idle is power used while idle, you can't change that. Except by turning if the phone. My numbers are similar to yours, but my signal is around 50%.
Sent from myTouch 4G

Ace42 said:
Signal needs the juice and always uses a lot of power, phone idle is power used while idle, you can't change that. Except by turning if the phone. My numbers are similar to yours, but my signal is around 50%.
Sent from myTouch 4G
Click to expand...
Click to collapse
Any idea why dial-er will take 25%??

No sense in calibrating the battery with that method....just download battery calibration from the market and push one button lol
Sent from my VS910 4G using XDA App

[Q] Battery Issues / Questions

I read through quite a few of the battery issue threads but would still appreciate specifc advice on the issue I am having with mine.
I already couple times did the stats wipe as per the tweak guide on OT site but do not seem to have any benefit from doing it.
I am encountering the following issues:
Charging
Charging is very finiky. If i am charging in operation or while turned of the tab will seem to stop charging at certain levels of charge between 70% and 95%. If it happens while charging turned off I need to disconnect and reconnect in order to coninue charging, sometimes a few times.
If it happens when in operation similar will happen but also when the charge is reported at 100% I tun off the tab only to find out that the charge level reported by the off battery icon is not 100%. On different occasions it displlayed anywhere from 80 to 95% (estimated). Dont remember ever seeing it at 100%.
Discharging
If I turn on flight mode overnight I will get almost no discharge all night 0%-1% which seems very cool but my normal use is really wireless thethering. I just started not even 10 minutes ago from 100% charge and already at down to 90%. Just playing a game or browsing or reading the forum using the XDA app can completely discharge the battery in less than 2-3 hours. All of this in spite of the fact that I am on Jupiter, UC and UV heavily. I also manualy been stopping running services like skype and yahoo messenger.
I am afraid this could be a a battery hardware issue but would appreciate a confirmation or a suggestion of what else I can try before restocking and going to the service center to get the battery replaced.
Maybe you could advise which system apps I can freeze with Titanium and still be able to maintain wireless tethering and phone functions. Maybe an advice on a task killer and what I can and can't kill to keep the mentioned functionality.
While writing this post I lost 8% charge!!!

Dont get any task killers they kill system process then the system has restart them which kill battery. Have you tried wiping batterystat.bin when below 10% and charging to 100% while powered off.
Sent from my GT-P1000 using XDA Premium App

Or try backing up data and restocking and installing the WIPE version of
Jupiter or of kratos.
Sent from my GT-P1000 using XDA Premium App

aliaksei said:
Or try backing up data and restocking and installing the WIPE version of
Jupiter or of kratos.
Sent from my GT-P1000 using XDA Premium App
Click to expand...
Click to collapse
thanks mate, I always restock and do the wipe version. currently on Jupiter and will soon be moving over to Kratos. Reading good stuff about it.
aliaksei said:
Dont get any task killers they kill system process then the system has restart them which kill battery. Have you tried wiping batterystat.bin when below 10% and charging to 100% while powered off.
Sent from my GT-P1000 using XDA Premium App
Click to expand...
Click to collapse
The only way I would install a task killer would be if I could get someone to tell me which tasks to ignore so I wouldnt get this issue. No have not tried the below 10% wipe but will do so since you mentioned it. In the Kratos thread somebody mentioned to let it completely discharge and then without connecting to boot into CWM and let it further discharge. Aparently a system full discharge is not a full discharge and there is another couple hours juice left in the battery to keep the CWM going. Would this be a good idea?

Thanks to the helpers and to all you readers I think I found the issue. It seems to be a hardware problem but not with the Tab. The problem was with the charger.
I accidentally came across a car charger, bought it, used it to partially top up a couple times in the car and right away the Tab seemed a bit different. So I went back and bought a mains charger plugged it in last night and for the first time in quite a while it charged to 100% and it happened within expected time. Put it on charge at 1.30am and it was at 100% at 5.30am when I woke up.
Dont think it will effect the drain much but it is definitely giving me more juice to start with.

Oops!
Sent from my GT-P1000 using XDA Premium App

After running Kratos for quite a while with my new chargers and recalibrating by the book I am getting the expected level of battery juice. The tab charges efficiently to100% every time.
Drain is still an issue for me though. If i set airplane mode overnight (8hours) it will loose 1% charge but 9%-10% without airplane mode. On standby and in use the drain is consistant and fast. Not even UC and agressive UV helps.
I did a lot of app freezing and it realy doesn't make a major difference. Normaly I have only 4 services running. Settings, Google Services, AnySoftKeyboard and Google Maps.
I don't think I had the same drain on Hermes even though i didnt UC, UV and had at least a dozen services running. Think my battery life was better while others were complaining about wifi reconnection issues. ASAP I will try going back to Hermes to either confirm the issue with Jupiter/Kratos or to just accept this as normal and shut up.
Sent from my GT-P1000 (Overcome, Kratos) using XDA App

I finaly narrowed down the battery issue.
When on wi-fi i will get up to 3 days of battery life but only up to 16 hours on 3G.
It has been suggested to change the modem. I am curently on JPZ. My GT-P1000 was originaly purchased in Saudi and currently, until my next contract who knows where in the world, using it in Croatia.
A suggestion on the most battery efficient modem that works globaly would be appreciated.
Sent off the Blue Marble using GT-P1000 on Kratos via XDA App

MutantWizard said:
I finaly narrowed down the battery issue.
When on wi-fi i will get up to 3 days of battery life but only up to 16 hours on 3G.
It has been suggested to change the modem. I am curently on JPZ. My GT-P1000 was originaly purchased in Saudi and currently, until my next contract who knows where in the world, using it in Croatia.
A suggestion on the most battery efficient modem that works globaly would be appreciated.
Sent off the Blue Marble using GT-P1000 on Kratos via XDA App
Click to expand...
Click to collapse
FYI - Kratos Overcome ROM has(or had, there's a new one out today and it might fix this?) a bug with wifi where that if you leave the network and then reenter it without manually turning off then on the wifi, it will constantly reconnect(or something) and burn battery like mad.
For now I just flip the wifi off/on again when i connect to a new wifi since i didn't want to leave Overcome. Hopefully the new one fixes it.
---------- Post added at 07:05 AM ---------- Previous post was at 07:04 AM ----------
and by leave/reenter network, i mean physically walking outside the network range until it disconnects, not disconnect/reconnect through the tab settings.
It may only happen moving from one network to another (i go from home wifi to work wifi to home wifi each day).

Mate thanks for the reply but think you misunderstood. I dont have an issue with wifi. My issue is with 3G/mobile network over SIM card. That one burns the battery.
Sent off the Blue Marble using GT-P1000 on Kratos via XDA App

darkmattar said:
FYI - Kratos Overcome ROM has(or had, there's a new one out today and it might fix this?) a bug with wifi where that if you leave the network and then reenter it without manually turning off then on the wifi, it will constantly reconnect(or something) and burn battery like mad.
For now I just flip the wifi off/on again when i connect to a new wifi since i didn't want to leave Overcome. Hopefully the new one fixes it.
---------- Post added at 07:05 AM ---------- Previous post was at 07:04 AM ----------
and by leave/reenter network, i mean physically walking outside the network range until it disconnects, not disconnect/reconnect through the tab settings.
It may only happen moving from one network to another (i go from home wifi to work wifi to home wifi each day).
Click to expand...
Click to collapse
So to understand what you are saying explicitly.
At home I connect to WIFI -- XXZ.. Its already a remembered network. I drive away from home and come to office here WIFI is YYZ (Already remembered network). So it automatically connects. THIS CAUSES the batt drain????
If yes, I am extremely happy. Coz I dont turn off WIFI it connects at home n office automatically. Please corroborate!
Al

> I finaly narrowed down the battery issue. When on wi-fi i will get up to 3 days of battery life but only up to 16 hours on 3G.
I think that is normal standard consumption. 3G is known battery hog and you cannot compare its runtime vs. wifi. Is 3G on all the time, or maybe you attempted to use interval disconnectors (ie. battery saver apps) like JuiceDefender, Green Power, the likes?

Thanks jtdc!
I move around the world a lot and rarely set up wifi so most of the time I am full time on 3G. I dont use any power saving tools like you mentioned. Insted I use Titanium to freeze any apps that unnecessarily show up in running services.
I only noticed the differwnce with wifi due to an exteded visit with a relative who has wifi in his house. It wont be long and I will again be full time on 3G and would realy like to extend the battery life by minimum 4 hours. Are you aware if there is a known difference in power consumption between different modems or if any of the tools you mentioned can deliver this kind of savings purely by managing the 3G operation?
Sent off the Blue Marble using GT-P1000 on Overcome 7, v4 via XDA App

if any difference of modems that would be minimal to negligible. what always comes as the factor is the strength of signal and of course the tab which always scans for it whenever you're on the move. what you experience is typical, and in best case good because 16 hours on 3G always on? your battery and tab must have been setup really well.
if you can bear with interval disconnector apps like i mentioned, it would increase your runtime. for instance you can have the app connect every 15 minutes to 3G then be online for at least a minute to have all your internet dependent apps sync (email, messages, news, etc) and have traffic threshold detection in case in a minute some transfer still ongoing, then maybe 2 minutes is long enough. then for the next 15 mins 3G is off, then it will repeat the cycle. in that manner there's quite a lot of power to be saved and will definitely extend your runtime.
if really no other choice, i suppose you need to buy an external battery solution, the likes of energizer xpal, so you won't have to worry about battery life.

Great, thanks, that solution is acceptable for apps that require data services. Can you recomend an app to use for setting it up.
I expect it would prevent me from using inbound calls via Skype but how would using such an app impact incoming sms service and voce calls? Would they come through and would voice call quality be impacted.
Sent off the Blue Marble using GT-P1000 on Overcome 7 v4 via XDA App

"Green Power" in android market does the job and its free, that takes care of data connections (wifi or 3G) and will not tinker with the GSM radio, therefore sms and voice calls are untouched. The other app "Juice Defender" you can customize even to turn off the GSM radio, even downlclock the cpu, etc. which will result more savings but is a paid app.
Let us know how that helped to increase your runtime

[Q] Does wifi turn off during sleeping mode?

Hi to everyone. I forgat to turn my wifi off during my working hours. In the nd of my shift, i check my battery and it was proximately %5 left and even i didnt use the phone during my shift. it was %50 or something before starting. Does wifi still work even on the sleeping mode?
Thanks guys

no it stays on unless you set up the power saving mode i use custom settings so that wifi etc will turn off at 40% battery

wi-fi is a big battery drainer. Always have it off if you don't need it. Same with gps, data, and auto-sync for various accounts

Try using juice defender. I think the free version always you to enable wifi control (after your phone goes into sleep mode it should turn off the wifi until you wake it up)
Sent from my MB870 using XDA Premium App

juice defender is in itself a battery drainer. don't use those "battery saver" apps. they're all bs. just get in a habit of turning off connections manually when you don't need them.

Are you aware of the setting: wifi settings/advanced/wifi sleep policy and set it to sleep when screen turns off?

Higgsy said:
Are you aware of the setting: wifi settings/advanced/wifi sleep policy and set it to sleep when screen turns off?
Click to expand...
Click to collapse
Thanks I didn't know about that setting, but my question is once wifi turns off mobile data kicks in. Which drains battery more? Wifi or mobile data?
Sent from my GT-N7000 using Tapatalk 2

They both drain battery equally as much. Mobile data shouldn't kick in unless you have it toggled on.
Sent from my GT-N7000 using xda premium

Use Green Power to automatically disable wifi and data when the phone goes into stand by. There are lots of settings like enabling wifi at certain intervals to sync email/whatsapp/other push services.
On GB for me it's the difference between losing 25% battery overnight without it and losing only 3% when it's enabled and that's with sync every hour.
It seems that on any ICS rom wifi doesn't use any juice even when enabled in standby. Because of the kernel bug in the leaks I'm now on the official CM9 rom and after almost 9 hours with wifi turned on I only lost 4%, on every other ICS rom I tried I get the same results.

wifi
zen0s said:
Thanks I didn't know about that setting, but my question is once wifi turns off mobile data kicks in. Which drains battery more? Wifi or mobile data?
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
install battery saver or juice defender , i recommend the second one

firasusman said:
install battery saver or juice defender , i recommend the second one
Click to expand...
Click to collapse
I tried juice defender ultimate but connection was on and off and time to time it took ridiculous amount of time to get the connection back :/ also I don't know why with juice defender I noticed sluggish performance phone, after uninstalling everything was much more snappy.
I have wifi on all the time and I only lose about 2-3% over night on stock, I guess it's fine the way it is for me without using all those battery "saver" apps.
Sent from my GT-N7000 using Tapatalk 2

dr. xp55 said:
juice defender is in itself a battery drainer. don't use those "battery saver" apps. they're all bs. just get in a habit of turning off connections manually when you don't need them.
Click to expand...
Click to collapse
I disagree. I definitely get power savings with JD compared to without it. Auto-disabling WiFi saved loads of power for a start, and my overnight drain has gone from 3-5%, to approx 1% with JD running. I'm not saying all batt saver apps are worth using, but JD works for me.
Its a lot easier to have a well-behaved app that DOESN'T use a lot of power itself manage your connection toggling rather than having to remember to do it yourself.

dr. xp55 said:
They both drain battery equally as much. Mobile data shouldn't kick in unless you have it toggled on.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
Wrong. WiFi uses more power. Its a separate transmitter being driven by the battery, whereas as mobile data will use the existing transmitter (phone) that's already on, but obviously drive it a little harder than if it was all off.

Droid 4 battery issues...unbearable.

I spent a few hours looking through other threads, but nothing seemed to quite fit my scenario.
Stock droid 4 with the latest over the air update.
I use the phone very sparingly during the day, and my battery drains very quickly...
Usually take off the charger around 8am and battery is below 20% by 2pm.
My usage is usually one or two 5 minute calls, and probably 10mins of facebook.
Is there a good smart action I could try?
I had one that turned off the 4g while the screen was off, but it made sending picture messages unbearable...
My battery use indicator blames screen, then OS, then facebook....
I feel as if it's not reporting the culprit correctly...
Any help is much appreciated.

F3M4 said:
I spent a few hours looking through other threads, but nothing seemed to quite fit my scenario.
Stock droid 4 with the latest over the air update.
I use the phone very sparingly during the day, and my battery drains very quickly...
Usually take off the charger around 8am and battery is below 20% by 2pm.
My usage is usually one or two 5 minute calls, and probably 10mins of facebook.
Is there a good smart action I could try?
I had one that turned off the 4g while the screen was off, but it made sending picture messages unbearable...
My battery use indicator blames screen, then OS, then facebook....
I feel as if it's not reporting the culprit correctly...
Any help is much appreciated.
Click to expand...
Click to collapse
I've had similar issues, not sure what I did to cause them. When I first got the phone, 16hrs+ with what I would consider moderate usage was normal. I've flashed AOKP and the battery life is back to normal (on track for 15hrs today), but the stock rom is a disaster.
I'll let you know what I turn up (if anything), but I have a feeling I'll probably be wiping everything out since I actually like the stock ROM (plus no hw accel in ICS).
Edit: Also, how did you have a smart action turn 4G on/off? I was under the impression we can't control that at all, except via system menu. Is a downside to VZW's 4G...

I believe that was actually via the app Juicedefender.
even with it on i was still only getting about 8 hours...
I am semi interested in rooting/flashing a rom etc, but my last experience there was a disaster(thanks to a ****ty droid eris)

I disabled all widgets except for facebook, being that it's the only one I use...
The only non essential apps running all the time are battery circle, and facebook(widget i guess?)
I'm now charged to 100%, gonna see where these changes take me.

What are your settings as far as Brightness, Haptic Feedback, Screen Timeout, Vibration (Incoming Message/Call or End Call). Also, I recommend just using the FB app instead of the widget as I notice most of the widgets draw power even when the screen is off.
I am currently running Eclipse 1.3.7 w/ xrjxMod, Brightness all the way down, all vibration and haptic feedback is off. Since I am rooted I also used ROM Toolbox to adjust my scan interval to the minimum. I have the screen timeout to the max, but I always turn it off manually after use. I am constantly on either FB, XDA, txt messages or the occasional game/Netflix use and with the exception of watching a full episode or movie on Netflix, I am averaging about 6 to 8 hours on a full charge.

My battery is now sitting at 46%.
Since my last post I used the phone for 18mins of phone calls and nothing else.
The breakdown is 46% voice, 23% android OS, 12% display, 9% phone idle, 8% cell standby...
The brightness is as low as possible, haptic feedback is off, phone is set to vibrate(thats the only way I get calls)
All three location settings are on....Should I turn them all off? I dont know which are important...

I agree with azreal. Check your setting. Haptic feedback sucks up juice and unless you like it is more of an annoyance imo. There is an option for it in language and keyboard as well as in the screen menu for your soft keys.
Do you have your gmail setup to constantly sync? If its not needed un-check it in you accounts menu.
Are you leaving wifi on when your not in range of a remebered router?
If you are not in a strong 4g area set it to cdma only in your wifi and networks menu.
My opinion of apps to extend battery life is a negative one. Its an app that always runs to make things stop running???? Some work ok but most do not.
If all else fails I would suggest the eclipse rom for the d4. As long as you are safestrapped and follow directions properly you can't go wrong. In the case of a bootloop shut the phone off and reboot and you will come back to the recovery screen to try it again or go back to stock. Its nearly foolproof.
You may also want to do a battery stat wipe if your still having issues. Just discharge your phone completly, then fully charge wipe stats and completly discharge again then fully charge once more, and see if you notice a difference.
I get around 15-16hrs on stock and up to 22hrs on eclipse (varies with usage) by following these few things.
Sent from my DROID4 using Tapatalk

I have wifi permanently off...
I have 4g almost all the time.
I use a gmail, but I cannot find a way to limit it's syncing...I still want it to check for emails, I guess just not as frequently.

F3M4 said:
I have wifi permanently off...
I have 4g almost all the time.
I use a gmail, but I cannot find a way to limit it's syncing...I still want it to check for emails, I guess just not as frequently.
Click to expand...
Click to collapse
I would hazard a guess that having 4G on all the time is one of the main culprits. I leave 4G off unless I am browsing the web, forums, or something else where the extra speed is nice. I use the 4G Toggle widget from the market to turn 4G on and off. I always turn it off before hitting the power button to turn off the screen. No need for it to be sucking juice when I'm not actively using my phone.
Sent from my DROID4 using XDA

I just installed the toggle switch, I'm gonna give it a go.

To turn off the gmail sync go to accounts click on you tap the account. Then uncheck the sync box.
When you want to check your email go to the gmail app hit the menu and sync. Takes about 30 seconds extra but saves some battery.
Sent from my DROID4 using Tapatalk

I'm always skeptical when people blame gmail sync or 4G on battery issues. When the phone was new on stock, and on ICS now, I have three gmail accounts, a yahoo account, and one Exchange account all syncing in the background + 4G on 24/7 and getting around 16hrs of battery life. This was the case for weeks. Then I started having trouble with Verizon's Backup Manager, did a factory reset, and now stock battery life is ~ 8hrs, with 4G OFF
I'm thinking at the very least, there is an issue with the stock battery information panel. My feeling is it hides battery use by the stock bloatware...

podspi said:
I'm always skeptical when people blame gmail sync or 4G on battery issues. When the phone was new on stock, and on ICS now, I have three gmail accounts, a yahoo account, and one Exchange account all syncing in the background + 4G on 24/7 and getting around 16hrs of battery life. This was the case for weeks. Then I started having trouble with Verizon's Backup Manager, did a factory reset, and now stock battery life is ~ 8hrs, with 4G OFF
I'm thinking at the very least, there is an issue with the stock battery information panel. My feeling is it hides battery use by the stock bloatware...
Click to expand...
Click to collapse
I agree that there is probably more to it than just 4G or syncing. Especially where people are getting only 8 hours or so battery life. I personally have noticed definite battery savings with 4G toggled off when not in use though. I can usually still go most of the day even with it toggled on all day but with 4G off, except when I actually need it, I usually get to bed with 30% - 40% battery left as opposed to 10% - 20% left with 4G on all day.
Sent from my DROID4 using XDA

I would also turn all 3 locations off. No need to run the gps when not using navigation. I keep my 4G on as I use it frequently but I am going to try the toggle as well for the extra savings on battery when not netflixing/browsing.
Sent from my DROID4 using XDA

Yep. I'm also having big issues with my Droid 4 battery. First I thought it was the firewall. But even after uninstalling the app, the drainage is absurd. The battery drains so fast, the phone gets warm.
I don't know where to look. I read something about logcat in another thread but could't find it anymore.
My Droid 4 can work about 5 hours on one battery charge. No gps, no 4g and no wifi. If I turn on wifi, it lasts about 8 hours, so I'm suspecting that some process loops when in non WIFI mode.

If you're out of options try using an app called watchdog. It let's you see if there is an app that's draining your battery unusually fast.

Thanks for the tip. But what whatchdog should I use? There are many apps called watchdog

vmu said:
Thanks for the tip. But what whatchdog should I use? There are many apps called watchdog
Click to expand...
Click to collapse
Watchdog task manager lite (free version).

I tried that this morning. Still poor battery life on stock, but watchdog doesn't flag anything. Very weird
Oh well, I would definitely recommend AOKP for anybody having battery problems.
For me today: 4 hours 55 minutes since unplug, 80% left.
Screen time on: 50 minutes (!)
That being said, I do keep my screen on pretty low. Still, you can tell I've been using it...

Watchdog couldn't help me but. My data monitor showed that motorola.services was generating a lot of data the past few days (800+ MB :O ) and responsible for the battery drainage. I blocked it with droidwall. It's better now, but sometimes it still pops up and generates data despite the fact it's blocked.
So glad that I have an unlimited internet plan or else I was really screwed

Battery Drain On s3 i19305

Hi, need some help,
I got this phone a couple of days back, its an unlocked one. Battery on the phone seems to be draining faster than i expected it to. The first time i charged it, it took 3 hours in the afternoon. By night it was 20% this was after playing games and downloading through wifi, so it seemed ok. I then put it for charge overnight. The next day it still seemed to drained by 7pm only used whats app this day, so i had to put for charge again.
Once fully charged (2 hrs) I shut off wifi, bluetooth, nfc and others. Switched off smart stay options and the display is set to lowest brightness (not auto). The wallpapers is also black so it will not drain battery. Overnight without the phone being used (only thing i set was alarm) the charge went from 89% to 78%. During the day I also find the charge still dropping pretty rapidly. I have included the screen shot of the battery from the same day. Between the first pictures there is no difference in use and still drops by 3% in 20 mins or so.
Is this a problem with the battery or is that how it is?
(Stock, no changes to rom)

Not sure if this is your specific problem - but one thing I've found that kills this phone fast is bad 4G cell reception. By default the phone runs as LTE/GSM/WCDMA (Auto) in Settings->Mobile Networks . If you are in a location with patchy (or none at all) 4G Coverage, the phone wastes an inordinate amount of juice switching to high-power mode on the cell radio searching for the elusive 4G/LTE ... Just like a 3G phone will deplete its battery extremly fast in a location with no/poor 3G connectivity (inside the 'secure' datacentres I wander into occasionally that have cell blockers, I can deplete the battery in a phone in about 3 hours just due to it constantly switching to high-power 'cell search' mode as it has no details on any cells to 'hand off' to....)
The difference is palpable... inside my office, if I have the phone on the right side of my desk closest to some windows, it will receive 'patchy' 4G and I'll go through about 60% battery over about 8-10 hours with intermittent phone use (most of the battery goes to screen time as I'm a 'fiddler' whenever I leave my desk for a coffee/break/etc...) If I place it on the left side of my desk, where the reception is much worse, it'll fall back to 3G and I'll go through about 80% battery doing nothing different...
I'm now in the habit of switching the phone to WCDMA Only when I'm going to be working in the bowels of the building, as there aint no hope of 4G there...Doing this drastically improves battery life.. Likewise if I'm stuck at home over the weekend, I leave it on WCDMA, as where I live has very patchy 4G as well and I only get it if I walk outside and down the street...
Just a possible reason for the excessive drain... at least worth trying anyway... *shrug*

adr6ian said:
Not sure if this is your specific problem - but one thing I've found that kills this phone fast is bad 4G cell reception. By default the phone runs as LTE/GSM/WCDMA (Auto) in Settings->Mobile Networks . If you are in a location with patchy (or none at all) 4G Coverage, the phone wastes an inordinate amount of juice switching to high-power mode on the cell radio searching for the elusive 4G/LTE ... Just like a 3G phone will deplete its battery extremly fast in a location with no/poor 3G connectivity (inside the 'secure' datacentres I wander into occasionally that have cell blockers, I can deplete the battery in a phone in about 3 hours just due to it constantly switching to high-power 'cell search' mode as it has no details on any cells to 'hand off' to....)
The difference is palpable... inside my office, if I have the phone on the right side of my desk closest to some windows, it will receive 'patchy' 4G and I'll go through about 60% battery over about 8-10 hours with intermittent phone use (most of the battery goes to screen time as I'm a 'fiddler' whenever I leave my desk for a coffee/break/etc...) If I place it on the left side of my desk, where the reception is much worse, it'll fall back to 3G and I'll go through about 80% battery doing nothing different...
I'm now in the habit of switching the phone to WCDMA Only when I'm going to be working in the bowels of the building, as there aint no hope of 4G there...Doing this drastically improves battery life.. Likewise if I'm stuck at home over the weekend, I leave it on WCDMA, as where I live has very patchy 4G as well and I only get it if I walk outside and down the street...
Just a possible reason for the excessive drain... at least worth trying anyway... *shrug*
Click to expand...
Click to collapse
Hi thanks for the reply. My phone does not show WCDMA in settings. It just has 2g/3g/4g/ auto OR 3g in network modes under mobile networks.

varun.k said:
Hi thanks for the reply. My phone does not show WCDMA in settings. It just has 2g/3g/4g/ auto OR 3g in network modes under mobile networks.
Click to expand...
Click to collapse
I have used an app called "Radio Switcher" to activate "gsm auto (prl)", when i open the app it seems to go into "Device info". It seems to work but "Network mode" does not seem to change.

I have uploaded the screenshots

Seems as though the system is using more battery than the screen itself.

The system seems to really take up way too much battery power. Mine is at 4%.
What are your sync settings? Especially for things like Weather, stocks, news etc. If you set them to sync every hour or so, your phone will keep running on the 3G network which will end up draining your battery.
Also, switch off motion. It's a cool feature, but it's not necessary. Same with auto-rotate.
Finally, use WiFi instead of 3G where possible. That saves battery too.
If you're rooted, download noFrills CPU control and reduce your max clock frequency on days where you won't get a charge. Phone runs well enough on 800mhz, but has a tendency to keep going at 1.4Ghz for no reason.
Otherwise, get a higher capacity battery

Snowstormzzz said:
The system seems to really take up way too much battery power. Mine is at 4%.
What are your sync settings? Especially for things like Weather, stocks, news etc. If you set them to sync every hour or so, your phone will keep running on the 3G network which will end up draining your battery.
Also, switch off motion. It's a cool feature, but it's not necessary. Same with auto-rotate.
Finally, use WiFi instead of 3G where possible. That saves battery too.
If you're rooted, download noFrills CPU control and reduce your max clock frequency on days where you won't get a charge. Phone runs well enough on 800mhz, but has a tendency to keep going at 1.4Ghz for no reason.
Otherwise, get a higher capacity battery
Click to expand...
Click to collapse
My sync is off, plus i have disabled sync for everything individuality and disabled all unwanted apps. Data service is also off, only use wi-fi. under motion only smart call is on and auto rotate us off.
I have uploaded a screen shot off after ti disable all these apps.(went to bed with 35% and was 28% in the mornin, turned wifi off before)

Will upgrading (official) phone to android 4.1.2 help (current ver is 4.1.1)? Current base band version is i9305BVALI5 i got an update on kies to i9305BVALI3. I don't think this is update to 4.1.2 is it?

I have updated to 4.1.2, and applied only gsm setting in mobile network. All apps are still disabled as before. The system still seems to be suing most amount of battery, more than the screen. I do not know what is using the system.

I have stared having the same problem a couple of days ago. Though I have sync enabled 0-24 for 3 gmail accounts, motions are on, screen auto rotate is also on. I am using nova launcher, almost all Samsung apps are frozen and most of time I am on wifi.
Now, this drain has nothing to do with the stuff I just mentioned (Enabled sync, motions...). I have all that things enabled all the time, and yes MPU and GPU are OC to 1600 and 640 MHz. But I was always getting >= 24h with ~3,5 h of screen on time. As I already mentioned, problem started a couple of days ago. Only thing which comes to my mind is that I have played with freezing / defrosting apps and I probably installed a couple of apps too. Like Beautiful Widgets and that's my main candidate to blame for this at the moment.
Though I am still not sure... Better than battery stats didn't show anything what could help. Network location locator or similar is at the top of the list of partial wake locks. But the time it hold the lock (About 25 min.) can't be the reason for such a high drain.
I have switched to HD Widgets, what I was using before (With this app one can disable auto location.) removed Beautiful Widgets, and turned off'Use wireless networks' and GPS in location services hoping it will help... So we'll see...

For me it still shows that adroid system and cell standby time is using a lot battery.

I don't get why android system and OS is using so much battery, everything is disabled. Network is on only GSM setting and i have network all the time, why is that also high? Does someone else also have the same problem?

If possible, install Better Battery Stats, maybe it will help you to identify the problem... In my case it is not of much use at the moment.
Sent from my GT-I9305 using xda premium

Strange idea: download an anti-virus and let it run.
Might as well give it a shot now, especially since AV is free.

Snowstormzzz said:
Strange idea: download an anti-virus and let it run.
Might as well give it a shot now, especially since AV is free.
Click to expand...
Click to collapse
I was using AVG, but i removed it thinking it could drain battery.

Sv: Battery Drain On s3 i19305
varun.k said:
I was using AVG, but i removed it thinking it could drain battery.
Click to expand...
Click to collapse
I think he meant that it could be a virus that drains all the battery.
Sent from my GT-I9305 using xda app-developers app

sebbe312 said:
I think he meant that it could be a virus that drains all the battery.
Sent from my GT-I9305 using xda app-developers app
Click to expand...
Click to collapse
I did an upgrade using odin to 4.1.2, the issue still remains though. The screen shots i posted is with the update.
So any virus should also be wiped out right?

varun.k said:
I did an upgrade using odin to 4.1.2, the issue still remains though. The screen shots i posted is with the update.
So any virus should also be wiped out right?
Click to expand...
Click to collapse
Anyways i tried it, does not seem to work though.

!crazy said:
If possible, install Better Battery Stats, maybe it will help you to identify the problem... In my case it is not of much use at the moment.
Sent from my GT-I9305 using xda premium
Click to expand...
Click to collapse
I have installed better battery stats, and it says that battery drain is 6% an hour at idle. I have attached the screen shots. I do not have root access to access some of its functions though.