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[Q] [i9000] Team ICSSGS RC3.1 - Battery Life

Hello everyone!
I've installed few days ago the onecosmic's ROM RC3.1, beatiful, perfect, smooth bla bla.
The problem is: i'm seeing so many post of people saying that with full charge, phone can stay alive for an average of 1 day- 1 day and an half (24-36h) with a normal use.
My phone can last 13-14h staying most of the time in standby and it's the 5th cycle so should be "stabilized" now. 1st cycle was awful, 8h (didn't expect anything else), then things got better but i've reached this cap of 14h.
I've tried Fugu kernel at first but i didn't get much improvement so i switched to paul kernel and changed modem too (jvk->jvt).
Still can't reach the dreamed 24-36h, i mean, i don't care about having 2 days of battery life, i would like to use the phone without having to charge it in the middle of the day.
btw nstools installed and set Deep Idle on, which seems to works just fine for me with the paul kernel.
(can't post outside link -.-)
nstools stats:
h*tp://i44.tinypic.com/6duvzb.png
does these stats means it's working?
i'll post also CPUspy stats:
h*tp://i43.tinypic.com/35052qf.png
is it everything ok here?
On standby there's no battery drain effect now, but when i'm using it, i get 1% down every 1-2 min.
What do you guys suggest? do i need to try other kernels/modems? shoud i try to flash again?
p.s. on 2.3.5 stock i used to have 24-36h but there's no way i'm going back to GB, i love ICS.

I used to have 24h of battery life, but I don't know what happened, after a week or so now my phone is draining 20% every hour, dead by noon...
Tried NStools with undervolt, and it didn't change anything.
It's now an useless piece of junk... this is retarded, either i will try reinstalling ICS or im going back to GB.

Gugus38 said:
I used to have 24h of battery life, but I don't know what happened, after a week or so now my phone is draining 20% every hour, dead by noon...
Tried NStools with undervolt, and it didn't change anything.
It's now an useless piece of junk... this is retarded, either i will try reinstalling ICS or im going back to GB.
Click to expand...
Click to collapse
maybe your problem is caused by an app, or more than one, which are using push notification, you sould try uninstalling some...
Tried undervolt too, i got maybe an hour more.

Update: i just flashed again with RC3,1 and paul kernel. Situation seems a little better, gonna update again after few battery cycles.

What thing is in the battery status menu?
If it is media server: settings-->apps-->all--> Mediastorage-->force stop(dont wipe data)

zorkek said:
Update: i just flashed again with RC3,1 and paul kernel. Situation seems a little better, gonna update again after few battery cycles.
Click to expand...
Click to collapse
sure! with the new paul kernel the battery life is better! amd now i'm trying the last glitch...my phone seems to work better...!i will hope to have also a good battery life without hard drain (with didle support maybe it's possible!)

actually, there was a lot of "Android OS" usage, maybe something went wrong from the beginning, the phone wasn't going to deep sleep state when put on stan-by and use more cpu than necessary when active, that must have been the main issue.
As i said, installed RC3.1 again this morning now everything is gooood
Lots of facebook, whatsapp, camera and 1 call, still have 67%. When put on standby battery almost doens't drop at all (checked on battery graph).
I think it's solved

I've the same problem. my battery life sucks...
Now my question. Where can I find/download the paul kernel? I#ll re-flash it too .
And my second question, do the "devil - der teufel" kernel do a great job too?

cookiecrisp said:
I've the same problem. my battery life sucks...
Now my question. Where can I find/download the paul kernel? I#ll re-flash it too .
And my second question, do the "devil - der teufel" kernel do a great job too?
Click to expand...
Click to collapse
dunno about devil kernel, i read that for someone is even better than paul and it solves also "green screen" issue that appear when you lock the phone. I'm happy with this config so i won't touch it until RC4
I confirm that ,now, when my phone is in stand-by, battery usage is almost 0.
btw paul's kernel can be found here:
h*tps://w*w.dropbox.com/s/ts8j2o7wuklq9zg
(sorry about the "*" in the url but it won't let me post link 'til i get 10 post -.-)
is also in the first post of the Team ICSSGS rom btw

I have flashed RC3.1 yesterday, it lasted for 8 hours. I was using it heavily to check all the features, syncing the contacts etc. I have drained the battery fully now. Will charge it upto 100% and see how long it last now with normal usage.

zorkek said:
dunno about devil kernel, i read that for someone is even better than paul and it solves also "green screen" issue that appear when you lock the phone. I'm happy with this config so i won't touch it until RC4
I confirm that ,now, when my phone is in stand-by, battery usage is almost 0.
btw paul's kernel can be found here:
h*tps://w*w.dropbox.com/s/ts8j2o7wuklq9zg
(sorry about the "*" in the url but it won't let me post link 'til i get 10 post -.-)
is also in the first post of the Team ICSSGS rom btw
Click to expand...
Click to collapse
thank u
i'll try it today and pray for a better battery life...
when RC4 is out than i think i will try the devil kernel... but until that i think "paul" will make it ^^

Battery Drain
hello everyone - I have been searching a lot abou this i9000 battery drain on ICS. I am using ICS and Devil karnel and battery lasts for around 11-12hrs. My usage is pretty normal. I dont use phone for most of the time but still it reaches to 12hrs mark. If I check battery stats then Android OS and Display (brightness is very low) are consuming most of the battery.
Please let me know if there are any ROM Tweeks or any other way to increase battery time. Or I will have to go back to GB because I hate charing battery two times a day.
Thank you.

battery saver

hi, currently i am on darky rom 10.4.2 xwjw1 rom... i have tried different modems on it.. i am happy with the rom but only problem is battery.. i am not happy with battery life.. will going to semaphore kernel will help battery life??? or give any other kernel or rom that gives me more battery life like upto 2 days... if performance degrades little than its ok with me.. is there any hack or scripts which will improve battery life??? battery juiced a lot when using 3G.. please help me guys... any good battery saving ICS rom will also do..

With Darkys i had the "best" battery with XXJVQ, Semaphore and turned off 3g. Just had a widget to toggle 3g quickly. That just saved 20% a day for me.
And i know thats not exactly that what you want but moving to ICS increased my battery life pretty much

vrs8 said:
With Darkys i had the "best" battery with XXJVQ, Semaphore and turned off 3g. Just had a widget to toggle 3g quickly. That just saved 20% a day for me.
And i know thats not exactly that what you want but moving to ICS increased my battery life pretty much
Click to expand...
Click to collapse
thanks for replying.. but i use 3g internet and i do switched it off when not required.. and i am ready to move to ics rom... which ics rom are u using??? what combination gives best battery life??? also give links if possible...

Well, first of all, there applications that are supposted to increase battery life. For a few examples, you could try Juice Defender(my personal favourite) or Watchdog Task Manager. I personally did try some GB Darkys' rom, and I wouldn't recommend it. The battery life was terrible. I'm now running WeUI, an ICS rom. I also tried CM9, and it had a pretty good battery life, but it's not really what I would recommend you to use as a daily usage rom.
You might also want to check your screen brightness settings, I personally have mine set at "automatic".
Also I'm not that sure if semaphore has a good battery life. I heard that Icy Glitch has better, but I am still running semaphore 1.0.0.
Let me know if those apps make any difference!

Back in the day when i was a darky user, i also tried semaphore and hat good results with it, 2days or more were common. I used BUJV3 modem mostly. But generally I had 2g running. The battery life always drops a lot when you constantly turn 3g on. Btw moving to ics reduced my battery life, I charge every night (sometimes earlyer).

i have juice defender... also i turn off the 3g when not required... and i have set the brightness to minimum.. but still i want to conserve more battery... can any one give me the kernel which uses lowest battery without much performance lag??? any ROM??? any good ICS ROM with good battery???

you can undervolt..
http://damiangto.emc2production.org/viewtopic.php?f=11&t=314

I was using an app called SuperPower XDA-BETA v0.80, that can be found on market.
As for me it's the best app for customising power usage, a bit tricky, and rot needed for most features, but I was finally able to prolong my battery life to 2,5 days.

i don't think so apps can save much battery as it will switch of the radio services which i am already making off when not required.. i am talking about battery Hacks or Kernel or ROM which will give extra battery power???

]Dude you want to use 3G too and still want battery life of upto 2 days !!! quite a dream...
anyways few things you can try on.. these are not hacks just tips
- remove any widgets on your homescreen
- turn off autosync
- don't use any constantly updating apps like weather, clock widget etc
- turn off auto rotate (read in some thread this as a tip too)
- don't use automatic task managers
- don't use any battery saver, turn off the data manually when not using everytime
- don't use live wallpaper and try to use some dark background image preferably black
- use some black and white theme
- remove/ freeze as many system applications as possible which don't affect your normal functioning and the apps that you don't use

Battery caliberator

Hey all i flashed marvel rom 2 days bak..evrythin is gng well except the battery... it drains out pretty fast...can any one suggst me a. Battry calibratr fr this phne plz?
Sent from my LG-P970 using XDA

Camera calibration doesn't work as in it doesn't do anything to improve your battery life.
The only way to improve battery life is to use apps that don't sync constantly, use a ROM that doesn't drain your battery and don't use Facebook or similar as they run in the background constantly and try to update which of course "eats" your battery (or at least disable their update feature).

Bt in respct of bttry wich is bettr..zeus or marvel??
Sent from my LG-P970 using XDA

I never used Marvell so i can't say which is better (in battery life).
I do know that for me, with normal use (and most updates for apps disabled or set th update less often, for example every 3-4 hours instead of 15-30 minutes), with Zeus 6.22 and normal usage i get about 1.5-2 days of use with one charge.
I tried Cyanogen 7 and with that i never managed to get 1 day or more of use, only about 18-20 hours from 1 charge, didn't play with Cyanogen 9 (ICS) since it's not stable yet.
You could of course try them out yourself and see which you like more.
For example install one of them, then make a backup (from the Clockworkmod (CWM) recovery), after that try the other and if you don't like it all you have to do is do a restore from CWM and you're back to the previous version.
You should try to use the ROMs for at least 3-4 days (preferably a week) before deciding if you like it or not, of course, if it keeps crashing then you're probably better of trying another ROM
P.S. don't forget to clear cache/dalvik cache and preferably clear data (factory reset) when installing different ROMs, or you'll have all kind of nasty surprises (crashes, battery draining faster than normal, Force Closes (FC), ...)

ronit003 said:
Hey all i flashed marvel rom 2 days bak..evrythin is gng well except the battery... it drains out pretty fast...can any one suggst me a. Battry calibratr fr this phne plz?
Sent from my LG-P970 using XDA
Click to expand...
Click to collapse
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
This is the app that everyone should use after flashing new rom. I always use it and helps in improving battery life. I always use rooted ziplined stock rom and just freeze unwanted apps using titanium backup app this way i get good battery life and most stable rom for OB.
Sent from my LG-P970 using Tapatalk 2

All the "Battery Calibration" app does is remove the batterystats.bin file which contains the information shown in Settings->About phone->Battery use.
The batterystats.bin file has NO AFFECT in the actual life of the battery, it's just information shown and nothing more.
More info HERE and HERE
I'm thinking that if a GOOGLE ENGINEER who worked on the Android development team says that deleting that file doesn't improve battery life then he/she might be right (after all, he/she knows more about the device than me )
But of course, the PLACEBO effect works for some, so if you feel better installing hundreds of programs that claim to improve your battery, well, be my guest, just know that many actually use more battery than they "save"

DELETED
(dont want to be in epic battery calibration debate )

Lol ok... yea thats wat i read abt battry caliberator... i hav used both marvel n zeus... bt to my surprise in zeus the battry drains dwn faster than marvel... : s wich is opposite to the reviews f both roms users...
Sent from my LG-P970 using XDA

Request for P880 developers.

Hi!
We've got some kernels improving efficiency/performance of our 4X. I have a request for our dear developers: can you create a kernel improving lenght of battery life? I (and many of LG Optimus P880 users) think baterry life is a weak point of Optimus 4X, so it will be really helpful if you create such kernel. What do you think about it?
Regards, Y2J
- Sorry for my bad English -

Battery is something all devs consider,some are already including fixes for baseband wakelock. To get more juice what you really need is to restrict the number of cores to [email protected], keep your brightness lower and undervolt by 25 millivolts if your kernel supports it. All phones of this calibre are battery hungry, I'm afraid you must get used to that and use whatever our few devs make available to help
Sent from my rooted P880

Can you tell me what kernel resolve baseband wakelock? I have a huge problem with that..

its not the kernel or the mod, that drains your battery.
its the installed apps.
for example: if you have skype, facebook and google search installed, the battery lasts half as long as without these apps.
especially skype is the devil, because it does not have push mode, so your phone will never go to deep sleep mode when skype is running.
google search is also a big battery drainer, same goes for facebook with its 35 services and processes always running.
deinstall/freeze these apps, and use icq, facebook chat and skype with "im+ pro", which _has_ push notifications.
my battery always lasts at least 3 days with normal use, and i am on stock 20a.
the only thing i do is using a taskmanager and kill all tasks i dont want running to free up memory (i use advanced task killer free for that, it memorizes the tasks it should kill).
when i had skype and google search installed, i sometimes had this weird battery drain, too, that sucked my battery empty in some hours.
after i froze these apps some month ago, i never had this again and everything is running smooth.
:victory:

LamerDuck said:
its not the kernel or the mod, that drains your battery.
its the installed apps.
for example: if you have skype, facebook and google search installed, the battery lasts half as long as without these apps.
especially skype is the devil, because it does not have push mode, so your phone will never go to deep sleep mode when skype is running.
google search is also a big battery drainer, same goes for facebook with its 35 services and processes always running.
deinstall/freeze these apps, and use icq, facebook chat and skype with "im+ pro", which _has_ push notifications.
my battery always lasts at least 3 days with normal use, and i am on stock 20a.
the only thing i do is using a taskmanager and kill all tasks i dont want running to free up memory (i use advanced task killer free for that, it memorizes the tasks it should kill).
when i had skype and google search installed, i sometimes had this weird battery drain, too, that sucked my battery empty in some hours.
after i froze these apps some month ago, i never had this again and everything is running smooth.
:victory:
Click to expand...
Click to collapse
Might I add you can keep these apps and use greenify if they are necessary to your use
Sent from my rooted P880

My battery is not drained. I am power user, so my battery lifes about 12h. A lot of useless services and stuff from CM has been frozen by me. I just think that energy-saving kernel should be created cause not all of 4X users are gamers. I (and they) will be very happy if our LGs can be used some hours longer. I don't use Facebook or Skype apps. I have less than ten apps from Google Play installed. There aren't battery-draining apps because I have checked them. Sorry for my bad English.

Y2Jericho said:
My battery is not drained. I am power user, so my battery lifes about 12h. A lot of useless services and stuff from CM has been frozen by me. I just think that energy-saving kernel should be created cause not all of 4X users are gamers. I (and they) will be very happy if our LG can be used some hours longer.
Click to expand...
Click to collapse
I get what you're saying, but custom kernels generally provide the options for either performance or battery life. Configure your kernel based on your needs. The only way battery life is gonna improve more than the current tweaks allow is something completely built from scratch with battery life in mind from start to finish. As far as I know since dexter left only kholk is capable of it, most kernels here are just a stock base with some good addons. Just give it time and see what comes
Sent from my rooted P880

LamerDuck said:
its not the kernel or the mod, that drains your battery.
its the installed apps.
for example: if you have skype, facebook and google search installed, the battery lasts half as long as without these apps.
especially skype is the devil, because it does not have push mode, so your phone will never go to deep sleep mode when skype is running.
google search is also a big battery drainer, same goes for facebook with its 35 services and processes always running.
deinstall/freeze these apps, and use icq, facebook chat and skype with "im+ pro", which _has_ push notifications.
my battery always lasts at least 3 days with normal use, and i am on stock 20a.
the only thing i do is using a taskmanager and kill all tasks i dont want running to free up memory (i use advanced task killer free for that, it memorizes the tasks it should kill).
when i had skype and google search installed, i sometimes had this weird battery drain, too, that sucked my battery empty in some hours.
after i froze these apps some month ago, i never had this again and everything is running smooth.
:victory:
Click to expand...
Click to collapse
I have a specific wakelock,which have many users of tegra3 devices thats called baseband_xmm_power and it`s not related to any app!

brunek said:
I have a specific wakelock,which have many users of tegra3 devices thats called baseband_xmm_power and it`s not related to any app!
Click to expand...
Click to collapse
I seem to have this too, but 1% drain over an hour and a half with 3G on doesn't bother me. Is yours worse? There's a few kernels with an attempt to fix this implemented, dunno if it works though
Sent from my rooted P880

@non4 said:
I seem to have this too, but 1% drain over an hour and a half with 3G on doesn't bother me. Is yours worse? There's a few kernels with an attempt to fix this implemented, dunno if it works though
Sent from my rooted P880
Click to expand...
Click to collapse
I have a 20-30% drain over night with 3G and wifi off so your 1% with 3G is nothing and you dont have baseband problem..

brunek said:
I have a 20-30% drain over night with 3G and wifi off so your 1% with 3G is nothing and you dont have baseband problem..
Click to expand...
Click to collapse
A 19 minute wakelock from baseband though, I expected more of a drain from that, strange how even those with a big wakelock dont see drain as a result
Sent from my rooted P880

@non4 said:
A 19 minute wakelock from baseband though, I expected more of a drain from that, strange how even those with a big wakelock dont see drain as a result
Sent from my rooted P880
Click to expand...
Click to collapse
Over night I have(not every night) 85% baseband and only 15% deep sleep..I dont understand what do you mean that hose with big wakelock dont see the drain?

brunek said:
Over night I have(not every night) 85% baseband and only 15% deep sleep..I dont understand what do you mean that hose with big wakelock dont see the drain?
Click to expand...
Click to collapse
Well like me, 19mins out of an hour and a half is quite big, I charge my phone overnight but even when I have left it I have only lost 3%, I only recently starting investigation of the wakelock on my phone, if I am able to replicate the drain somehow I will share as I have had peculiar drain, only once ever though
Sent from my rooted P880

For all of you, that have huge battery drain over night (20-30%), i might have solution that helped at least 10 users. It happened to me shortly after flash to v20a. All you need to do is to factory reset phone and in "Software update" software decline terms and conditions of LG update service.
After this procedure I have 1-3% drain per night (8 hours). By Wakelock Detector my phone have only 10-15 min longer awake time than onScreen time.

Why did you have battery drain,what was the cause? Not everybody suffers from baseband wakelock..

Wait for kholk's 3.4 beta kernel, You'll get Your battery improvement

Do you think he will solve baseband wakelock? Where can I see the development of his kernel so i know when it comes?

brunek said:
Do you think he will solve baseband wakelock? Where can I see the development of his kernel so i know when it comes?
Click to expand...
Click to collapse
Look here: http://forum.xda-developers.com/showthread.php?t=2241474
Next alpha should be pretty good
Sent from my rooted P880

How many baseband wakelocks do you have?

It depends..Sometime very little and sometime over 80% during the night! Last night it was only 1% but the night before it was 83%! It doesnt make any sense,it comes and goes randomly..And the settings are always the same(over night no wifi no 3g)

4.2.2 kernel for improving battery life?

Hello folks,
I got a SGS with carbon custom rom. It is running Android 4.2.2 . My battery life is pretty bad, i lose like 30% over night. I already reduced screen brightness but mobile standby still eats a lot of battery.
Would a new kernel solve my issue? Can someone recommend one, please?
Thank you.

ms_green said:
Hello folks,
I got a SGS with carbon custom rom. It is running Android 4.2.2 . My battery life is pretty bad, i lose like 30% over night. I already reduced screen brightness but mobile standby still eats a lot of battery.
Would a new kernel solve my issue? Can someone recommend one, please?
Thank you.
Click to expand...
Click to collapse
It's not kernel. Install gsam Battery Monitor and check which apps are draining your battery. And check your wakelocks .
Try to greenify apps like viber, facebook etc
As you are also using 4.2.2 it has battery drain fast bug.
Sent from my iPhone using Tapatalk

I use Semaphore on CM 10.2 (Android 4.3.1) but it is available for 4.2.2 and there are spme option for explame, deep sleep, maxbe it can help you ...
ms_green said:
Hello folks,
I got a SGS with carbon custom rom. It is running Android 4.2.2 . My battery life is pretty bad, i lose like 30% over night. I already reduced screen brightness but mobile standby still eats a lot of battery.
Would a new kernel solve my issue? Can someone recommend one, please?
Thank you.
Click to expand...
Click to collapse

ms_green said:
Hello folks,
I got a SGS with carbon custom rom. It is running Android 4.2.2 . My battery life is pretty bad, i lose like 30% over night. I already reduced screen brightness but mobile standby still eats a lot of battery.
Would a new kernel solve my issue? Can someone recommend one, please?
Thank you.
Click to expand...
Click to collapse
4.2.2 based ROMs have in general very high battery consumption. On the i9000 4.2.2 gives the very shortest battery life.
CM10.2 works much better, provides around 50% longer battery life and is faster

Thanks for your answers. I checked battery usage and wakelocks but there are no abnormalities. The highest amount of wake lock is caused by exchange but it doesn't seem to be the culprit of my battery problem. The device is awake only 9% of the time.
I found that mobile data causes the drain. When turning it on and tethering the connection I lose half my battery within 20 minutes. The battery usage is about the same when only using mobile data, without the tether.
I have installed semaphore, it gives me excellent standby times when not using mobile data...(2% over night)
2 questions: would flashing a new modem/radio solve my problem?
Is 4.3 suitable for daily usage? My current ROM is very stable and I wouldn't want to upgrade to 4.3 if it doesn't work well.
Also, I need tethering, does that work on cm10.2?
Thank you
UPDATE: I flashed Android 4.3, semaphore kernel and a new modem. I will observe the battery consumption over the next few days.