Database Users

Wholy crap gingerbread has awful battery

I wouldn't even say I use my phone frequently. When I used the miui or however it's spelt rom I would have 60 percent to 30 remaining each day. On gingerbread? I'm down to 15 percent every day and every night my phone has shut off due to lack of battery.
Isn't there any rom with excellent battery life? That's all I want, I use my phone for tethering.

i put CM7-RC2 on my device yesterday and it's the best battery life i've ever gotten.

Gb battery life owns, u got something else going on

No he doesn't, i've measured religiously since the original nexus shipments and this is by far the worst

My battery was really bad but now it seems to last me 10hrs & up which is weird for a phone to last me that long. I really think theirs an app or bug running the battery crazy I don't use any task managers. Their was a thread somewhere saying to run your phone on recovery mode and to press on the reboot/restart and battery get better I did that so maybe it does work but I highly doubt it.

I can vouch for poor battery too. I am on CM7 RC2 and I can't even make it through a day with light use. By light use, I mean practally not using the phone at all.

My battery life seems to be better than ever. Some 10-20 percentage units more left in the evenings all down the line.
Edit: Stock GB, no task managers.

ttnurmi said:
My battery life seems to be better than ever. Some 10-20 percentage units more left in the evenings all down the line.
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I agree. Gingerbread has been nothing short of AMAZING for my battery life. The battery life is so good now that I stopped using my spare battery altogether!

Macmee said:
I wouldn't even say I use my phone frequently. When I used the miui or however it's spelt rom I would have 60 percent to 30 remaining each day. On gingerbread? I'm down to 15 percent every day and every night my phone has shut off due to lack of battery.
Isn't there any rom with excellent battery life? That's all I want, I use my phone for tethering.
Click to expand...
Click to collapse
Did you happen to do an Update or a full install when you got gingerbread?
Some suggest that it's due to the update process.. so you might want to try a full install:
http://android.clients.google.com/p...b119f8.signed-passion-ota-102588.656099b1.zip
Remember to wipe your cache first..

What i noticed is taht custom roms use more battery than stock rom. this is for me i don't say that it is like this for everyone. But with gigerbread i got the best battery life. i also think using apps from SD uses also a lot of battery life, but again i have no other choice to low on memory.

bug
I had the same problem. I am on stock gb.
Just set wifi sleep policy to never. It will last 2 days after that. It is definetly a bug.

Seems to be a real mixed bag with GB on N1's. Lots of people saying "better battery" many others, myself included, reporting much worse. For me, I experienced very poor battery life right from updating to the stock GB using the singned passion .zip file. Even did a factory reset, and only reinstalled my daily used apps and it made little difference, then I went back onto a MIUI rom for a few days and battery life was wonderful again.
Then early this week I flashed to CM7 RC2, and for two days battery life was the worst I've ever had.
Had been seeing a few comments on different forums of people who had the same problem swearing black and blue that after they changed the wifi sleep policy to "always on" their battery life improved dramatically on Gingerbread.
I know if sounds backwards, and that is why I was sceptical for ages, but last night I made the change to see if it would make a difference for me today and all I can say is WOW!!! Phone had a real test today as I started work really early. As of right now the phone has been off charge for 16 hours.
Half a dozen or more voice calls, minimal text, my usual wifi and 3g data, about 10 min of streaming video over wifi and about 1/2 hour in total running Navigation.
There is no way in hell my phone would have done all that and even lasted me 8 hours prior to changing the wifi sleep policy - so I think there is definitely something in it.
As for the ppl who aren't noticing bad battery, maybe they already had theirs set this way - or maybe it's an issue only effecting certain batches of devices (like the wifi reconnect issue which seemed to be pretty common pre froyo)

it /WAS/ terrible at first. Really, really dire, but it's back to what it used to be, even better now perhaps.
To the OP, do you have WIFI turned on still? I used to leave it turned on and it didn't ever knock down battery as it was going to sleep and not coming back, so wasn't a drain. GB appears to have fixed this, and it was staying on, thrashing the battery.
Turning it off and turning it on as needed only, battery life is now fine.
Do you have WIFI Turned on? Bluetooth? For now, to try and test what's happening, turn off 3g, wifi, bluetooth, automatic date/time sync, and JUST use it as a phone for a day. See what % you're at at the end of the day.
Then we can take it from there.
But I'd be pretty certain that it's wifi related, in that it's now working as it should be, we just got used to it being broken before.

My phone on cm7 rc2 has worse battery than I used to have with wildmonks kernel and cm6.1. Yesterday, the phone was barely used until 8 o'clock at night. It was at 45 percent. After an hour medium use, its gotten down to 23 so I had to plug in the phone....the easiest fix? Keep a charger In the car!
Sent from my Xoom using XDA App

Using stock Gingerbread and I can say that my battery life is decent, better than Froyo for sure. The phone lasts longer than 16 hours and I use bluetooth to listen to music for 1.5 hrs on my commute home. By the time I get home after a long day (8pm'ish), I still have about 20 to 30% left.

I have no wifi no bluetooth no gps and a dim screen.
Tis is seriously crappy battery life.
Does anyone think they can link me to a good miui rom. For me, it seems that gb just wont work.
I am running stock gb then i flashed the root and my boot loader is unlocked.

bohlool said:
I had the same problem. I am on stock gb.
Just set wifi sleep policy to never. It will last 2 days after that. It is definetly a bug.
Click to expand...
Click to collapse
Listen to this person!
For some reason, since 2.3.3, if you have your Wifi policy to sleep when the screen is off, Android will rip through your battery. You'll notice Android OS taking all the battery on the status page.
Set the sleep policy to never and you get better battery life again. Turn off Wifi manually when you're not using it, even better. Until somebody fixes this bug, I guess it's the only workaround we've got.
More info: check issue 15057 on code.google.com - cant post link due to the newness of this account.

Same here on shorter battery life my nexus one as well post gingerbread ota... I will look into detailed system processes and try to find out why...
Sent from my Dell Streak using Tapatalk

bohlool said:
I had the same problem. I am on stock gb.
Just set wifi sleep policy to never. It will last 2 days after that. It is definetly a bug.
Click to expand...
Click to collapse
Will give it a try on this, mine is set to turn off when screen is off.
Sent from my Dell Streak using Tapatalk

Log into latitude and log out. Every time there is a map update it defaults to being a battery draining monster. But in essence. Something to do with maps link to latitude (which i don't even use) breaks my phones battery life.

Radio post last OTA 2.3.3 power consumption

Do you think the radio part in last OTA 2.3.3 consumes more battery?
I see the battery information consumption much higher in "Phone".
Confirms it for me?
PS. this morning, after 5 hours and 35 minutes battery down to 90%

jackalac said:
Do you think the radio part in last OTA 2.3.3 consumes more battery?
I see the battery information consumption much higher in "Phone".
Confirms it for me?
PS. this morning, after 5 hours and 35 minutes battery down to 90%
Click to expand...
Click to collapse
Well, I'm using ARHD 5.1.3 (based on the official HTC's GB ROM) with radio 12.54.60.25_26.09.04.11_M2 and can say that battery consumtion is siginificantly better than with the Froyo. It's normal when you have less consumption from the phone as a whole to have a higher percentage on the parts that require the same amount of energy. In fact you can optimize the radio software only to a certain amount - it still has to emmit energy as specified by the standards (GSM, UMTS, WiFi) and it still has the same losses in the receivers' amplifiers.

Ok, you are right, but if i compare the battery drain in this rom, i can say that is faster then stock froyo 2.2.1 imho...

I'm so happy someone else noticed it too! I'm having bad battery issues with this update. Took it from charger this morning and currently having 42%. I've done nothing fancy, installed few programs and browsed web. The percentage is going down like crazy

Not a lot of good to you, but I recently switched to LeeDroid's custom Kernel, the difference is night and day. Worth a look.

i see a problem too with my battery after update. i dont know what is the cause. if u find it pls tell here.thk

my radio part also consume much battery, i am ready to flash other radio and see the results.

ozzyo99 said:
Not a lot of good to you, but I recently switched to LeeDroid's custom Kernel, the difference is night and day. Worth a look.
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Click to collapse
completely agree with this. just amazing!

I noticed something strange with the signal levels when using GSM/WCDMA Auto-mode. While on 3G it only had like 1 bar and went straight to GPRS, then suddenly lost GPRS-signal to 0 bars and phone changed it to full 3G mode. It bounced like crazy. I forced it to GSM-mode and surprise, my battery life tripled.
I made a hard reset last night and let my battery die two times, lets see how it goes.

T-Loop said:
I forced it to GSM-mode and surprise, my battery life tripled.
Click to expand...
Click to collapse
Yes you will get much better battery life as the constant trying to locate best signal in WCDMA preferred mode is a big battery drain. Downside is you reduce data speeds.
I wasn't sure if your surprise was genuine or in mock obviousness so have tried to word this carefully.
Sent from my Ericsson T39m

T-Loop said:
I noticed something strange with the signal levels when using GSM/WCDMA Auto-mode. While on 3G it only had like 1 bar and went straight to GPRS, then suddenly lost GPRS-signal to 0 bars and phone changed it to full 3G mode. It bounced like crazy. I forced it to GSM-mode and surprise, my battery life tripled.
I made a hard reset last night and let my battery die two times, lets see how it goes.
Click to expand...
Click to collapse
the reason while in gsm mode you had a longer lasting battery is because 2G (GSM/GPRS/EDGE) Takes a lot less power than umts/hspa/hspa+ to function; this is regardless of what device from whichever vendor/manufacturer you're using.
if you're still having issues, use the fast wipe rom to completely wipe your phone, then run the RUU (root it with gingerbreak)

Mr_JMM said:
Yes you will get much better battery life as the constant trying to locate best signal in WCDMA preferred mode is a big battery drain. Downside is you reduce data speeds.
I wasn't sure if your surprise was genuine or in mock obviousness so have tried to word this carefully.
Sent from my Ericsson T39m
Click to expand...
Click to collapse
It was genuine cos I didn't have same amount of battery drain with Froyo. I always use it in Auto-mode, and with Gingerbread it's awful. I should have mention this in my post, sorry. But the point is, the signal levels went crazy and battery went down. Froyo was almost perfect what comes to this. My battery last 9 hours yesterday, where Froyo 1½ days.
Maybe I should navigate myself to the dev-section and see other solutions.

For some alien reason after upgrading to 2.3.3 , my battery is doubled, if not tripled. Maybe im just lucky that the new radio comes with the update is more suitable with my carrier in my country. I'm now on 3G, autosync , 23 hours after charge and still at 53% , medium use with calling, sms , taking photos and capturing some videos. Before the update my battery dies after like 5-6 hours with 3G and auto sync on. I'm a happy man right now

Ehi guys do you made a factory reset after ota?
I cant see better battery life after two days....
Sent from my Desire HD using Tapatalk

Update to my issue. Seems that hard reset did the magic. I now have 81% of battery, took this off the charger 9 oclock this morning. It's still on Auto-mode like it should be. Maybe it was a cell tower fault or a battery calibration problem.
Sent from my Desire HD

i forced my phone to stay only in wcdma mode and disabled always on mobile data. i wonder if it helps.will see. i wonder what will change if i do a hard reset.i dont think this is an option.

sedatif781 said:
i forced my phone to stay only in wcdma mode and disabled always on mobile data. i wonder if it helpes.will see. i woder what will change if i do a hard reset.i dont think this is an option.
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Click to collapse
also having problems after the update: the situation is this - if I keep wifi on and do not touch the phone, after ~8 hours (during night) I have only 66% battery left and battery use stats says that "Dialer" ate most of the battery. Did not notice this before in batt stats

I did a factory reset on my dhd after ota and also format the sd card, because i had always "Telephone" (dialer) voice on battery stats with high % of usage.
Btw, when my dhd was inactive on desk for 5 6 hours, with froyo 2.2.1 (1.72) the voices in battery stats were phone inactive, standy by ecc ecc, now before the format, the first voice was always "Telephone".
Now i wait for next recharge.

some one tell me!
i had on 2.2 froyo a AURO navigation software, now it does not work!! im so angry now!!!
recommend me other apps tha i can use? maps,navigator?

Pruikki said:
some one tell me!
i had on 2.2 froyo a AURO navigation software, now it does not work!! im so angry now!!!
recommend me other apps tha i can use? maps,navigator?
Click to expand...
Click to collapse
Hi,
See http://forum.xda-developers.com/showthread.php?t=863327&page=53
in my post #523 for a apk file to download. Notice: do not manually update the app in the Android market after you installed the attached file, then you will end up with the same problem.
Just follow the instructions in my post. If you have questions contact me.

DesireZ ICS Battery life, is yours worse?

Hi all,
Just wondering if your all seeing reduced battery life with the ICS builds for the DesireZ?
I was using Miui (2.x) and now trying out Ice Cream JIBWich,and Im discovering the battery life is most certainly less. I've also tried CM9 Alpha and Andromedus r13, all roughly the same.
Battery Widget reports on average 40(ish)mA in sleep, I havent compared it to Miui but just wondering I've done something wrong here..
Install procedure this time was a factory wipe.
Comments?
Angelo

I don't know if my battery life is worse on ICS than on CM or stock 2.3. Because I don't have any logs of battery life. Maybe I will do some tests in next week, just for curious.
So... I'm getting 30mA - 34mA drain on idle on Andromadus v13 with default kernel. It is lower than yours. I'm using latest radio now (.19).

After implementing new features and fixing bugs, there is a stage of development called optimization. That is when you will see all the battery life milked out of a rom.
And none of the ICS roms are even close to that stage, so battery will probably not be indicative of the final product.

I don't have any hard numbers, but based on my moderate usage, (8am to 11pm) I go from 100% to about 40%. Fairly good IMO when compared to sense roms (that i'm used to) but not as good when compared to AOSP GB or MIUI roms..

Hmm I found my battery doing suprisingly well compared to aosp gb, now that I'm using ics its lasting longer than ever.
It probably has to do with better app/process management.
That's my experience..
Sent from my HTC Vision using XDA

Well, this might sound strange to say but i'm actually getting the best battery life i've ever had out of ICS so far with Andromadus v13/Jibwich 1.3 on my phone. I seem to manage to get really long charges of at least 48 hours. Maybe i'm not using my phone as much as i was with GB? I'm not quite sure if that's the case or not, but i'm consistently getting longer lasting charges than ever before with GB.
Thing is though that ICS ROMs DO seem to drain the battery more while the phone is actively being used (in comparison to AOSP GB ROMs), this seems to be the case for me, as well as some other people that i've seen.
There were a few strange versions of Andromadus and Jibwich though which seemed to cause severe battery drain for me. Fortunately, that hasn't been the case with any of the latest versions.
All of that said, i still don't think anything compares to the battery life on G2 Slim (Gingerbread AOSP ROM), that ROM has ridiculously good battery life. With that one, i'd use my phone a fair bit (couple hours of tethering, gaming, lots of texting and calls) and it would still last for at least 44 hours or so.
In the end though, there are still some GB ROMs that have much worse battery life than ICS for me. For example, all CM7 variants that i've tried has always had this frustrating radio related battery drain, then some Sense ROMs seem to drain the battery a bit more than AOSP ROMs too. In response to the OP, i never really got amazing battery life with MIUI, so ICS has been a much better experience so far in that regard.
What i do know for sure though is that battery life with ICS is MUCH better than the stock gingerbread OTA update that our phones got.

thanks all,
I've done some checking and according to battery monitor, my JIBWIch rom seams to be fluctuating .. from 36mA to 97mA in standby which to be indicates something's running.. not sure what... Anyone recommend a decent process monitor, there's soo many of them
>After implementing new features and fixing bugs, there is a stage of development called >optimization. That is when you will see all the battery life milked out of a rom.
>And none of the ICS roms are even close to that stage, so battery will probably not be >indicative of the final product.
Agreed..
I'll see how it goes but I might have to go back to Miui (GB) as I use the phone for work..

asantaga said:
thanks all,
I've done some checking and according to battery monitor, my JIBWIch rom seams to be fluctuating .. from 36mA to 97mA in standby which to be indicates something's running.. not sure what... Anyone recommend a decent process monitor, there's soo many of them
>After implementing new features and fixing bugs, there is a stage of development called >optimization. That is when you will see all the battery life milked out of a rom.
>And none of the ICS roms are even close to that stage, so battery will probably not be >indicative of the final product.
Agreed..
I'll see how it goes but I might have to go back to Miui (GB) as I use the phone for work..
Click to expand...
Click to collapse
Here was my (personal) record breaking charge on Andromadus v13 https://www.dropbox.com/gallery/12263406/1/screenies?h=c9ef42
You can see part of my configuration there (radio and CPU speeds).
On top of what's already there, i use supercharger RC6.9 with option 6 and nitro-lag-nullifier.
here are my usage patterns for good battery life:
-I generally stick to 2g networks as i don't do much web browsing while i'm out but when i do, i just switch to 3g.
-I also don't regularly use any task killers but if i detect any choppyness i kill app using Advanced Task Killer.
-I don't use auto-brightness and instead i just use the notification power widget.
-I do lots and lots of texting, some calls here and there, i often use wifi hotspot and i play 2d games a little bit at times, so i'm generally a light-moderate user.
-I also "debloat" as much as possible by getting rid of any system apps that i don't use.
On a random note, right now, i'm using Jibwich 1.3 and it is so great, battery life seems the same as andromadus v13 but this ROM is actually much more smooth and fluid on the home screen.
I hope this helps a bit, give me a thanks if you found this useful ;D

hey thanks for this, yeah very nice!
Just occured to me, im currently in Madrid (Roaming), and the phone's on 2g at the moment, I WONDER.. just wonder, if its constantly hunting for 3G signal.. now that would account for the random power demands...
Meanwhilst I found this app http://androidadvices.com/save-battery-android-phone-enabling-2g-network/
Apart from adding a 2g/3g toggle it also makes the phone go to 2g when sleeping.. I mean when its sleeping we dont need 3g access....
Anyone else tried it? or can recommend a different better/app?

asantaga said:
hey thanks for this, yeah very nice!
Just occured to me, im currently in Madrid (Roaming), and the phone's on 2g at the moment, I WONDER.. just wonder, if its constantly hunting for 3G signal.. now that would account for the random power demands...
Meanwhilst I found this app http://androidadvices.com/save-battery-android-phone-enabling-2g-network/
Apart from adding a 2g/3g toggle it also makes the phone go to 2g when sleeping.. I mean when its sleeping we dont need 3g access....
Anyone else tried it? or can recommend a different better/app?
Click to expand...
Click to collapse
Go to settings --> wireless and networks --> mobile networks
Now see if you have "use only 2g networks" checked. If you do, that'd be why you're always connecting to 2g networks.
As a battery saving tip, it's best to always check that option when you don't need mobile data (like when you're at home and wifi is available).
In addition to that, if that option is NOT checked, then your phone will connect to 3g networks where applicable, you have to check if your carrier actually uses 3g networks on your plan.
Also that app seems fine, but i wouldn't use the "use 2g when sleep" option because that could cause problems with reception between waking and sleeping because it'll be erratically switching between basebands all the time.

asantaga said:
Hi all,
Just wondering if your all seeing reduced battery life with the ICS builds for the DesireZ?
I was using Miui (2.x) and now trying out Ice Cream JIBWich,and Im discovering the battery life is most certainly less. I've also tried CM9 Alpha and Andromedus r13, all roughly the same.
Battery Widget reports on average 40(ish)mA in sleep, I havent compared it to Miui but just wondering I've done something wrong here..
Install procedure this time was a factory wipe.
Comments?
Angelo
Click to expand...
Click to collapse
It looks to me that yes. Tried 3 ICS inluding JIBWich and CM9 based and battery life was reduced to me about 1/3 maybe 1/4. looks like that. Hope some improovment will come in near future.

I'm running Andromadus v13 and it seems to be only a bit worse than the latest CM7 nightly. However, this is only my subjective opinion, it could be that I'm using my phone more with ICS
I also have the .19 radio and the tweaks associated with v13.

Well from what i've seen, ICS has very steep and sudden drops in the battery stats graph when the phone is being used. This is in contrast to many gingberbread ROMs which just have a sloping negative curve on the battery stats graph. This seems to indicate that ICS uses more battery when the phone is being actively used.
I'll post pics after this current charge is over to show a comparison of ICS battery life with Andro v13 and GB battery with Virtuous G-lite 2.0.1.

I don't see any difference between GB and the ICS battery usage, maybe because i allways configure it from begining and don't restore apps via titanium backup or any other app...
Also battery needs to calibrate under new ROM and after few charges you will see it working little bit longer and longer...
ps. Do you have disabled Google Talk on ICS fresh install? He is always on after installing and eats a lot of battery.

louloudi said:
I don't see any difference between GB and the ICS battery usage, maybe because i allways configure it from begining and don't restore apps via titanium backup or any other app...
Also battery needs to calibrate under new ROM and after few charges you will see it working little bit longer and longer...
ps. Do you have disabled Google Talk on ICS fresh install? He is always on after installing and eats a lot of battery.
Click to expand...
Click to collapse
I also configure all new rom's from begining and on Affinity 2 - my battery in averange usage die after ~16h but on ISC os about ~13h, I don't know why.
My battery after full charge get 4.212 V , tried clear battery stats bin no effect

My avg runtime on one charge on CM7 w/o oc, with ilwt or pershoot kernel is 60hours (yes! 3 "work days") or atleast 2 days with 50-70 min calls and 25-35 SMS
Turning data and/or wifi when needed makes phone battery least looooonger...
Now testing Andromadus Audacity b1, charged 7.5h ago (4207mV), i will post when empty (or near ~3600-3650)

Also remember that we don't have the proper kernel source for our phone. There are some tweaks that can't really be made yet, and probably a bunch of wasted cpu time where errors and stuff get worked through.
GB battery life was worse than Froyo at the same stage of development. It'll even out better when we have the official kernel source for the DHD, I think.
Sent from my HTC Desire Z using XDA

So most ICS based roms have roughly the same battery life?
I'm current on the audacity beta, getting about 20 hours with no charge with moderate use. Gingerbread i could go about a day and acouple more hours.

I'm a bit bitter that I can only use 3G or higher on Bell with my DZ...that means if I want better battery life I need to ditch mobile data altogether. Boo.
Sent from my HTC Desire Z using XDA

Better battery life
All,
I was just about to install "Elitemod", which claims to be tuned to bits wrt battery life, and I noticed AudicityBeta1 was released.. so i thought Id try it out.. and
And yes I think its much better!.. this morning I used it a bit, made a dozen phonecalls, sync'd email and for the first time the "voicecalls" are less than the screen.
(see attachment)
Im wondering if the recently released qualcomm drivers made a difference..
At this rate it will last ~40hrs... probably less but as long as it lasts the day Im happy
Anyone else want to confirm my findings?

Jellybean Battery Drain Discussion

Now, I know that we have a "All your JB discussions here" thread, but I think that this one is a rather specific issue and hence should be discussed in a separate thread. I also know this post is rather lengthy, but please read and give your opinions as it's important.
If you look at the last 5 pages on the JB discussion thread, you'll notice that lots of people are complaining about the battery drain due to wifi. The gist of it is that if you forget to turn off wifi before turning your screen off, then you'll experience a battery drain of about 5% an hour even though you're not doing anything with the phone.
I can vouch for the wifi battery drain issue. After flashing DLJ4, doing a factory reset, doing several full charge cycles, etc. here's what I can say:
On ICS, battery drain when the screen is off is the same regardless of whether you leave wifi on or off. Approximately 2-5% overnight
On JB, battery drain when the screen is off and wifi is off is the same as ICS. But if you leave wifi on, it drains about 2-3% an hour.
General battery use on JB otherwise is the same as ICS
It's pretty obvious. You don't even need to use apps to monitor battery use. Anyone can easily tell that there is something about the wifi causing battery drain.
So there are 2 things to note:
1) Wifi strength on JB is much stronger. For example, I could never connect to wifi from the 2nd floor on ICS (the modem is on the ground floor; it always shows poor signal and gives the "authentication error" when I try to connect), but now on JB I can easily do so within seconds of turning the wifi on. And this result is consistent each time I try.
2) With wifi on and the screen on at the same time (eg: when browsing), the battery drain is similar to ICS, ie approximately 1% every 4 minutes.
Point (1) seems to imply that the wifi strength on JB is stronger, and maybe the frequency used is higher. This seems like a pretty good explanation for the battery drain, until you consider point (2). Point (2) seems to indicate that the problem is not in the wifi frequency, as battery drain during screen-on time is similar (you would expect it to be higher), but there is some other explanation.
So my idea is that the wifi is indeed stronger in JB but that doesn't affect battery drain significantly. Instead, the problem lies in the fact that wifi management on JB is just bad. On ICS, when the screen is off, the wifi signals are probably "weakened" significantly, for lack of a more technical term, but on JB it remains at the same "strength" as when the screen is on. This is probably what causes the battery drain.
I'd like to use this thread to see what everyone else thinks from the experience on stock JB roms. And of course, if we can properly identify the cause, surely someone would be able to fix it.
Update 1: Alright, so far it seems that only those on stock kernels have this problem. Those on Siyah kernel appear to be unaffected. I'll test it out soon, and see if it can be a temporary fix for now.
Update 2: So I've been using Siyah kernel 1.7 RC1 for nearly two days now. While the battery drain due to wifi is reduced, it's still not as good as it was on stock ICS. And this is even after I flashed the "better profile.zip". Also, as a side note, the overall battery consumption on Siyah isn't significantly better than the stock kernel. But at least wifi battery draining seems to be less. Do continue posting your experiences so we can find a more viable solution.
Update 3: Over the last few weeks I've tried out DLJ1, DLJ5 and the leaked Rom with multiwindow (can't remember the Rom name). Anyway, from my experience, and from the collective opinions on people who posted here or in other battery threads, it would seem that the WiFi battery drain persists in all these jb roms. The only solution I've had so far was to use Siyah kernel. Some people report that custom roms work too, but I suppose if you're reading this thread it means you're trying to fix a problem with stock jb.

Wifi battery drain is bad on my s3 too. :crying:
I thought it was just some wakelock issue. hopefully the next jellybean update will fix this

I'm on the latest DLJ4 and I had wifi on last night. I unplugged my phone from charger at 3:00am then woke up at 6:30 for work and in that 3.5 hours I had only lost 2% battery, the whole time wifi was running.
Maybe it's kernel related, I'm running Siyah 1.6.8 and I don't seem to have a problem.
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I too have this drain issue! I am on stock JB!

Obagleyfreer said:
I'm on the latest DLJ4 and I had wifi on last night. I unplugged my phone from charger at 3:00am then woke up at 6:30 for work and in that 3.5 hours I had only lost 2% battery, the whole time wifi was running.
Maybe it's kernel related, I'm running Siyah 1.6.8 and I don't seem to have a problem.
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I'm on stock kernel. Perhaps I'll try out Siyah kernel, but still there a quite a number of us facing this issue, as you might be able to tell from the original JB discussion.

I've been on Omega since version 25 (now on 31) and I have 0.9% per hour battery drain with WIFI on. I've used BBS and found all of the main drain causes on my phone and stopped them. For instance, I have location services turned off and even disable\freeze maps when the screen turns off (I have a tasker widget to defrost and open it when I want it).
On my phone the OS doesn't have a problem with WIFI battery drain, but various apps and services did until I sorted them.
Edit - my drain is the same despite whether I run stock kernel, Phenomenal or Siyah.

I'm on siyah 1.6.8 and have no decreased battery life.
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disclaimernotice said:
1) Wifi strength on JB is much stronger. For example, I could never connect to wifi from the 2nd floor on ICS (the modem is on the ground floor; it always shows poor signal and gives the "authentication error" when I try to connect), but now on JB I can easily do so within seconds of turning the wifi on. And this result is consistent each time I try.
>>>That is not how i find wifi on any build of JB a stronger signal .
2) With wifi on and the screen on at the same time (eg: when browsing), the battery drain is similar to ICS, ie approximately 1% every 4 minutes.
>> Again nothing like that sort of drain have i seen.
Proper testing from those with no problem is the only way you can prove that WiFi is stronger .
jje
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Oh, my Wi-Fi signals are stronger! :thumbup:
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DeadSOL said:
Oh, my Wi-Fi signals are stronger! :thumbup:
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Well are you sure ? please answer My problem is the WIFI speed su** it always shows no bar or 1 bar all the times and speed is horrible after seeing your comment i think JB update is worth a shot

Maybe we need to add:-
These problems are only on stock jb roms, not flashed kernels or custom roms. A large amount of people on stock firmware on jelly bean have this WiFi drain. Its very obvious on my phone, with WiFi on and screen off, I get around 4-5% drain, with WiFi off and screen off I get about 0.5% drain.

And I thought that this problem on my phone only ... I wanted to do a factory reset, but you say it doesn't help, so no point trying.
With the JB benefits, there are still annoying bugs.
1. When accessing a Settings tab, notice how it opens. There a chubbiness in the Settings app. (tried to clear data etc etc ..).
2. TouchWiz Redraws very frequently.
Other than that, I can't see any problems with the Official JB.

I don't get drain Lj4 WiFi on overnight max drain 2-3 %
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JJEgan said:
disclaimernotice said:
1) Wifi strength on JB is much stronger. For example, I could never connect to wifi from the 2nd floor on ICS (the modem is on the ground floor; it always shows poor signal and gives the "authentication error" when I try to connect), but now on JB I can easily do so within seconds of turning the wifi on. And this result is consistent each time I try.
>>>That is not how i find wifi on any build of JB a stronger signal .
2) With wifi on and the screen on at the same time (eg: when browsing), the battery drain is similar to ICS, ie approximately 1% every 4 minutes.
>> Again nothing like that sort of drain have i seen..
Proper testing from those with no problem is the only way you can prove that WiFi is stronger .
jje
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Click to collapse
I know these aren't methodical tests, and they're still quite subjective. But it's pretty obvious to most of us that the wifi is stronger. By the way, what do you mean that you don't see that sort of drain? On ics or jb? Because on both ics and jb, my battery drains about 1% for every four minutes of browsing and I find that normal; pretty good even
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I'd like to add that after I installed the stock jb it wasn't the WiFi I had a problem with it was my network connection with virgin as my signal was very low, about only two bars and my s3 used to get very hot when it wasn't doing anything.
After I left my screen off overnight and checked bbs I found that the main problem causing battery drain was losing connection and bad connection and my s3 got hotter the more it charged.
I tried the Shiyah kernel and flashed the even more battery zip I've notice that I now have a full connection and it hasn't dropped out yet and my battery is draining very slow and my s3 is very cool which I am really happy about.
Edit:After a full cycle the quad core seems to be draining less, seems the Shiyah Kernel is the best Kernel for battery life with Jellybean
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using omega ROM here and its kernel... so far no issue with batt drain.. but i wonder what if i flash siyah kernel, will the battery life get even betteR?

drumhitz said:
using omega ROM here and its kernel... so far no issue with batt drain.. but i wonder what if i flash siyah kernel, will the battery life get even betteR?
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Should try phenomenal extreme
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Yea got the problem too ...if I use my phone on charge it slowly (I mean really slowly) charges...and it takes twice as long to charge my phone. When I returned my phone to stock (ice cream ..etc) it goes back to normal.
But wanna thank this thread hopefully changing kernel will help
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I've just noticed something after using stweaks, if I change to dual core my battery drains slower and the Celsius of the phone is lower but if I have it on quad core my battery drains really fast and the Celsius is much higher.
I read somewhere that it's only the international versions of s3 that have bad battery drain and the other versions use dual core, not sure if that makes a difference.
Also noticed after changing to dual core my s3 only lost 4% over night, I also undervolted the battery a bit.
I installed the wattage widget to see the differences.
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How about folks running stock DLJ1/2?
I had flashed DLJ2 French stock version previously and I feel I had better battery at that time than DLJ4 UK unbranded JB (which I am on right now).
And I dont think we are getting enough complaints about battery life from folks who are running versions other than UK DLJ4 ROM!

Terrible battery life.

Hey everyone. Without further a do, I am saying that my N4 battery suuuuucks really bad. Started on stock rom, flashed Chroma w/ latest franco kernel. Nope. Still lots of drain (slightly better overall, but nothibg major). Then flashed hells doctor kernel. Nope. Lots of drain when screen is on, but stable with screen off.
Honestly, I've seen people getting 6h on screen time. And everyone says that these kernels and rom can increase battery life by a margin, while mine stays the same.
Oh and there is a thing. Ive recently broke my stock charger and now using apple's ipad charger. Mine was 1.2 A and the one from apple is 1 A. Is this is an issue we are looking for?
Or its just a 2years old battery running out of its life cycles...?
Thank you!

Seall said:
Hey everyone. Without further a do, I am saying that my N4 battery suuuuucks really bad. Started on stock rom, flashed Chroma w/ latest franco kernel. Nope. Still lots of drain (slightly better overall, but nothibg major). Then flashed hells doctor kernel. Nope. Lots of drain when screen is on, but stable with screen off.
Honestly, I've seen people getting 6h on screen time. And everyone says that these kernels and rom can increase battery life by a margin, while mine stays the same.
Oh and there is a thing. Ive recently broke my stock charger and now using apple's ipad charger. Mine was 1.2 A and the one from apple is 1 A. Is this is an issue we are looking for?
Or its just a 2years old battery running out of its life cycles...?
Thank you!
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Click to collapse
Nexus 4 battere sucks really no matter what you plus your network coverage may impact vastly on performance. Anyway given the battery is 2 years old, I would say it's gone even if it says it's good but again it depends on your usage like continuous tethering or other heavy activity that makes the phone run hot

anawim said:
Nexus 4 battere sucks really no matter what you plus your network coverage may impact vastly on performance. Anyway given the battery is 2 years old, I would say it's gone even if it says it's good but again it depends on your usage like continuous tethering or other heavy activity that makes the phone run hot
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Well my usage can be heavy surfing on FB, Instagram and definetely FB messenger. I often use chrome and mainly everything is done under Wifi.
According to my screenshots, you cannclearly see that shes (battery) is ok when screen is off, no drain and etc. As soon I start using it it drains A LOT. Almost 90° angle on diagram It's crazy.
Plot twist: To prevent spam on the XDA forums, ALL new users prevented from posting outside links in their messages.

Yes, i have a new battery which was working well, but I flashed factory image 5.1.1 xxx47v and the batt life is really horrible now.
It's easy to replace the battery, I recommend taking out the sim card tray before taking the back off though.
I haven't been on here for a long time, whats the best rom, for batt life. I'm willing to go back to kit kat if I have to .

Also note that some of the screenshots with 6+ hours of SOT the user has handicapped their devices (disable 2 cores, lower max cpu/gpu frequency, etc).

lolcakes203 said:
Also note that some of the screenshots with 6+ hours of SOT the user has handicapped their devices (disable 2 cores, lower max cpu/gpu frequency, etc).
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Yes, I've seen people underlocking, undervolting etc. But that's not what I am planning to do with mine N4. Neither I'm hoping to have 6 hours SOT. 4 would be SUPER COOL. And that seems impossible for my device