Hi,
I have recently (half a week ago) updated my SII to Jelly Bean from ICS. It's fully stock without root. However, I noticed right away that the battery started draining very quickly and the phone sometimes gets hot. Did a factory reset. Factory reset the phone and format the internal SD and remove the external SD. Didn't help in the slightest. Phone starts draining after resetting. I have tried to flash another stock JB ROM (XEU) and afterwards factory reset the phone again. No dice. I installed CPU Spy to see CPU consumption and it says the phone didn't go into deep sleep at all and 95% of the time it was at 200 Mhz over an 8 hour period or so. So there's a wakelock that's keeping the phone continuously on.
At first, "Media" in battery settings in Settings was the culprit, it drained about 50% of the battery. I have searched the web and it's a pretty common battery drain on JB. I did try to disable the service and its battery consumption went down dramatically. But for some reason it turned on again. But right now Android OS and Android System are both draining most of the battery. I have also installed BetterBatteryStats and according to that app there is a partial wakelock called "NlpWakeLock" by Google Services that's draining most of the battery. Last night, around 60% of the battery got drained overnight (80% > 23% to be precise). Which, clearly, is unacceptable.
I'm at my wits end. I have no idea how to solve this and because I really like the new JB features I don't want to go back to ICS (I did a fresh ICS install and the battery drained 2% overnight which is how it's supposed to be).
If there's any information you need to know let me know. Any help is appreciated!
Go back to GB with speedmod kernel is an option.
-------------------------------------------
maybe your an iphone expert
------------------------------------------
Kaigo said:
Hi,
I have recently (half a week ago) updated my SII to Jelly Bean from ICS. It's fully stock without root. However, I noticed right away that the battery started draining very quickly and the phone sometimes gets hot. Did a factory reset. Factory reset the phone and format the internal SD and remove the external SD. Didn't help in the slightest. Phone starts draining after resetting. I have tried to flash another stock JB ROM (XEU) and afterwards factory reset the phone again. No dice. I installed CPU Spy to see CPU consumption and it says the phone didn't go into deep sleep at all and 95% of the time it was at 200 Mhz over an 8 hour period or so. So there's a wakelock that's keeping the phone continuously on.
At first, "Media" in battery settings in Settings was the culprit, it drained about 50% of the battery. I have searched the web and it's a pretty common battery drain on JB. I did try to disable the service and its battery consumption went down dramatically. But for some reason it turned on again. But right now Android OS and Android System are both draining most of the battery. I have also installed BetterBatteryStats and according to that app there is a partial wakelock called "NlpWakeLock" by Google Services that's draining most of the battery. Last night, around 60% of the battery got drained overnight (80% > 23% to be precise). Which, clearly, is unacceptable.
I'm at my wits end. I have no idea how to solve this and because I really like the new JB features I don't want to go back to ICS (I did a fresh ICS install and the battery drained 2% overnight which is how it's supposed to be).
If there's any information you need to know let me know. Any help is appreciated!
Click to expand...
Click to collapse
Is your device rooted?
If yes then switch your kernel to apolo it's gives you good battery life
Sent from my GT-I9100 using xda premium
^^^^^^^^^^^^^
Do you bother reading the posts or just have a compulsion to post any old crap.
I see your advising people how to root,then you open up a new thread asking for help about rooting your phone.
And you are continuing to spam threads posting what other people have said already.
-------------------------------------------
maybe your an iphone expert
------------------------------------------
theunderling said:
Go back to GB with speedmod kernel is an option.
-------------------------------------------
maybe your an iphone expert
------------------------------------------
Click to expand...
Click to collapse
Do you mean going back to Gingerbread? I haven't figured out what the speedmod kernel is yet but if I were to switch back I would rather switch back to ICS. But preferably I'd stick to JB since I do love all the new features and options. I'm willing to flash another JB ROM without the battery drain issue. However, all stock ROMs that I have tried had the issue.
Do you know of any good JB ROM? I prefer to keep it as stock as possible. I did root when I had ICS installed though.
Battery Drainage is very common in JB Stock
Kaigo said:
Hi,
I have recently (half a week ago) updated my SII to Jelly Bean from ICS. It's fully stock without root. However, I noticed right away that the battery started draining very quickly and the phone sometimes gets hot. Did a factory reset. Factory reset the phone and format the internal SD and remove the external SD. Didn't help in the slightest. Phone starts draining after resetting. I have tried to flash another stock JB ROM (XEU) and afterwards factory reset the phone again. No dice. I installed CPU Spy to see CPU consumption and it says the phone didn't go into deep sleep at all and 95% of the time it was at 200 Mhz over an 8 hour period or so. So there's a wakelock that's keeping the phone continuously on.
At first, "Media" in battery settings in Settings was the culprit, it drained about 50% of the battery. I have searched the web and it's a pretty common battery drain on JB. I did try to disable the service and its battery consumption went down dramatically. But for some reason it turned on again. But right now Android OS and Android System are both draining most of the battery. I have also installed BetterBatteryStats and according to that app there is a partial wakelock called "NlpWakeLock" by Google Services that's draining most of the battery. Last night, around 60% of the battery got drained overnight (80% > 23% to be precise). Which, clearly, is unacceptable.
I'm at my wits end. I have no idea how to solve this and because I really like the new JB features I don't want to go back to ICS (I did a fresh ICS install and the battery drained 2% overnight which is how it's supposed to be).
If there's any information you need to know let me know. Any help is appreciated!
Click to expand...
Click to collapse
Hey Kaigo ,
I have faced the same problem as you have faced ... Gone through a lot of problems to fix this Many of the Stock JB's for GS2 are having a lot of issues with the battery drainage
Well I had found a solution to this problem You can try installing the JB France update (XEF) & the UAE update (XSG)
It worked pretty well for me Try it and let me know if it worked for you
Regards
ksjd said:
Hey Kaigo ,
I have faced the same problem as you have faced ... Gone through a lot of problems to fix this Many of the Stock JB's for GS2 are having a lot of issues with the battery drainage
Well I had found a solution to this problem You can try installing the JB France update (XEF) & the UAE update (XSG)
It worked pretty well for me Try it and let me know if it worked for you
Regards
Click to expand...
Click to collapse
Wow, nice. Exactly what I'm looking for! I'm downloading the XEF update as I'm typing this. I'm going to try that and I will let you know the result.
theunderling said:
^^^^^^^^^^^^^
Do you bother reading the posts or just have a compulsion to post any old crap.
I see your advising people how to root,then you open up a new thread asking for help about rooting your phone.
And you are continuing to spam threads posting what other people have said already.
-------------------------------------------
maybe your an iphone expert
------------------------------------------
Click to expand...
Click to collapse
Bro don't take personally I just want to help people and for my thred I was asking how to root device without using pc and sdcard
Sent from my GT-I9100 using xda premium
So how is you posting the exact information after someone else has posted it helping anyone.Ive seen another member tell you that before.
And whats the point in you contributing rubbish info into a thread
-------------------------------------------
maybe your an iphone expert
------------------------------------------
Now I feel bad for the guy.
Edit: No I don't.
Sent from...this is not even my S2
gauravgymnast08 said:
Bro don't take personally I just want to help people and for my thred I was asking how to root device without using pc and sdcard
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Well repeating other peoples posts isnt helping anybody.
An update. I've installed the XEF update initially it had the same draining issue. However, I've also cleared cache and data in recovery mode and it seems to have solved most of the issue. I've got pretty good battery life now (about 1%/h idle).
But I did find another culprit draining the battery which is Dropbox. According to BBS the processes "wlan_rx_wake" and "h2_hsic" were draining the battery but I've uninstalled Dropbox now and it seems to have solved the issue. I really use Dropbox regularly though. Anyone got any idea what could be causing that?
Thanks for the help so far everyone! :laugh:
Yeah, don't let it upload your pics.
Sent from the little guy
gastonw said:
Yeah, don't let it upload your pics.
Sent from the little guy
Click to expand...
Click to collapse
I have always had that feature disabled since I don't want to use it anyway. I have no clue what could be causing it. I want to use a packet sniffer to see what is sending and receiving data but the phone isn't rooted so I can't really do that unfortunately.
Hold on, I'ma freeze it with TiBu.
Test time.
PS: You really need to root that phone.
Sent from...this is not even my S2
I just greenify Dropbox (actually, all apps which rely on an internet connection). Unfortunately for you, it requires root. IMHO, almost worth rooting for, although there's many better reasons than that.
Greenify is almost like a temporary freezing of the app, by stopping all background processes for the app. They automatically restart when you launch the app, and automatically turn off when the phone goes to deep sleep.
Sent from a galaxy far, far away
Cheers!!
gauravgymnast08 said:
Bro don't take personally I just want to help people and for my thred I was asking how to root device without using pc and sdcard
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Here you go
http://bit.ly/12JEEcO
---------- Post added at 02:05 PM ---------- Previous post was at 01:47 PM ----------
Kaigo said:
An update. I've installed the XEF update initially it had the same draining issue. However, I've also cleared cache and data in recovery mode and it seems to have solved most of the issue. I've got pretty good battery life now (about 1%/h idle).
But I did find another culprit draining the battery which is Dropbox. According to BBS the processes "wlan_rx_wake" and "h2_hsic" were draining the battery but I've uninstalled Dropbox now and it seems to have solved the issue. I really use Dropbox regularly though. Anyone got any idea what could be causing that?
Thanks for the help so far everyone! :laugh:
Click to expand...
Click to collapse
Wow
Im glad the XEF update helped
Well Dropbox always keeps on syncing stuff from the cloud and that might the real cause You should disable all the automatic syncing and keep it to manual sync as it syncs only on your commands and saves your battery!!
Cheers!!! :victory:
Check how much data is being downloaded. If a lot is being downloaded off WiFi, switch it off and see if that stops your drain. Then switch off Data on your cellular. Just to check which one's causing the drain. Believe it or not, I just rebooted my home wifi router and battery drain issue was over on my Galaxy S2.
gastonw said:
Hold on, I'ma freeze it with TiBu.
Test time.
PS: You really need to root that phone.
Sent from...this is not even my S2
Click to expand...
Click to collapse
I had previously rooted my phone when I was on ICS. I never used it too often though. I wanted to use Nandroid. I have no clue how to root JB though, without flashing a modded kernel (which I did with ICS).
lurker316 said:
Check how much data is being downloaded. If a lot is being downloaded off WiFi, switch it off and see if that stops your drain. Then switch off Data on your cellular. Just to check which one's causing the drain. Believe it or not, I just rebooted my home wifi router and battery drain issue was over on my Galaxy S2.
Click to expand...
Click to collapse
That's very interesting. This might just be a good reason to root the phone. So I can use network log or shark to see which apps are sending and/or receiving data. I have this feeling Dropbox is going to be one of them..
Hopper8 said:
I just greenify Dropbox (actually, all apps which rely on an internet connection). Unfortunately for you, it requires root. IMHO, almost worth rooting for, although there's many better reasons than that.
Greenify is almost like a temporary freezing of the app, by stopping all background processes for the app. They automatically restart when you launch the app, and automatically turn off when the phone goes to deep sleep.
Sent from a galaxy far, far away
Click to expand...
Click to collapse
Hmm, but I guess that you can't really freeze apps like Whatsapp, since you wouldn't be able to receive any messages then until you turn on your phone. But I'm getting convinced to root the phone again so I'm definitely going to give it a try.
Related
Hi. There are a lot of battery threads - a lot!, but after using search I found nothing relating to this problem.
My phone was fine up until a week ago or so. I'm on stock 2.3.5 after upgrading from VillainRom (which was great, but I just wanted stock back).
I've been back on stock since 2.3.5 released and everything was great. I froze/stopped the bloatware ect..
But the last week or so my battery drains 45-50% a night. I have wifi off and also the data network is off. I don't know what could be doing this.
Could someone help trouble shoot this please? As I said, it was perfect before, I don't think I've changed anything, wifi and data are off overnight, all apps closed.
Thanks very much.
EDIT - So I bought two new batteries and I still have the same problem. I've even went back to VillainRom 3.0
Now here's the kicker, after putting my phone on charge in the morning, after two minutes it's up to 46%. So whatever is happening it's not the battery draining, it's a software bug or a hardware bug or something.
Has anyone heard of this? And what's the best way to go about this?
Also, why would this only happen overnight and not during the day?
EDIT 2
I have attached 3 screenshots of my battery stats.
irish-sid said:
Hi. There are a lot of battery threads - a lot!, but after using search I found nothing relating to this problem.
My phone was fine up until a week ago or so. I'm on stock 2.3.5 after upgrading from VillainRom (which was great, but I just wanted stock back).
I've been back on stock since 2.3.5 released and everything was great. I froze/stopped the bloatware ect..
But the last week or so my battery drains 45-50% a night. I have wifi off and also the data network is off. I don't know what could be doing this.
Could someone help trouble shoot this please? As I said, it was perfect before, I don't think I've changed anything, wifi and data are off overnight, all apps closed.
Thanks very much.
Click to expand...
Click to collapse
Better Battery Stats should be of help.
You'll be interested in Partial Wakelocks, and possibly Kernel Wakelocks. If you're unsure of anything post in that thread and someone should be able to point you to a solution.
mudferret said:
Better Battery Stats should be of help.
You'll be interested in Partial Wakelocks, and possibly Kernel Wakelocks. If you're unsure of anything post in that thread and someone should be able to point you to a solution.
Click to expand...
Click to collapse
Thanks. I've been trying that since you suggested it. It hasn't helped. I'm thinking it's a software problem, so I'm going to start fresh.
Thanks for the suggestion though.
Maybe you can try to do a factory reset and start again from the beginning (gmail account, install apps, etc...)
mudferret said:
Better Battery Stats should be of help.
You'll be interested in Partial Wakelocks, and possibly Kernel Wakelocks. If you're unsure of anything post in that thread and someone should be able to point you to a solution.
Click to expand...
Click to collapse
nfribeiro said:
Maybe you can try to do a factory reset and start again from the beginning (gmail account, install apps, etc...)
Click to expand...
Click to collapse
Yeah, that's what I'm just about to do. I'm also reading about Villain 3.0, might give that a go while I'm at it.
So I bought two new batteries and I still have the same problem. I've even went back to VillainRom 3.0
Now here's the kicker, after putting my phone on charge in the morning, after two minutes it's up to 46%. So whatever is happening it's not the battery draining, it's a software bug or a hardware bug or something.
Has anyone heard of this? And what's the best way to go about this?
Also, why would this only happen overnight and not during the day?
Try recalibrating your battery. Drain it completely to 0 and charge fully. Then wipe the battery. Status.
Sent from my GT-I9100 using xda premium
bala_gamer said:
Try recalibrating your battery. Drain it completely to 0 and charge fully. Then wipe the battery. Status.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I did that with my last battery, which is what prompted me to buy new ones. I also wiped the battery stats again when I installed villainrom.
bala_gamer said:
Try recalibrating your battery. Drain it completely to 0 and charge fully. Then wipe the battery. Status.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
DON'T DO THIS.
There batteries are not meant to drain to 0%. It could damage your batterie.
If you already wiped your batterie stats with this batterie, just use your phone and charge it when it's almost empty. Repeat this a few times. It is possible that your batterie needs to settle in and that your problem is solved in a few days.
If not, try flashing an other rom. Make sure you wipe everything (except batterie stats, because you already had).
Yep do not drain it completely.
I would recommed to calbirate your battery. It seems that your battery stats are somehow off.
Use this guide here:
http://forum.xda-developers.com/showthread.php?t=1312273
If it does not helpt do it againg and go through a few charge cycles.
If the problem still persits I would consider a factory reset.
download battery calibration from market and follow instruction.
Thanks for the replys, but none of this has helped. What else could it be?
Imho the Battery will never drains to zero, the phone will turn off before, so let your phone on until it turns off by low voltage, if you afraid ruin your battery, use the eldest, you already got 2 spare batts
I had a similare issue some weeks ago and my phone went dead 3 !! hours after the indicator reaches zero.
Maybe it helps.. (No guarentee)
Just to be sure, have you tried a different charger? perhaps yours is messed up?
BTW, i flashed 4 different ROMS in the last 2 month, and i never wiped my batterystatts .. no issue with that (for me)
Try a different kernel, based on my experience, the rom is almost nonrelevant to battery usage, the kernel makes the major difference, give Phenomenal Extreme a try, this kernel boosts your Battery for real! -> http://forum.xda-developers.com/showthread.php?t=1351191
Turn of location service and facebook
Good Luck! Feedback appreciated..
if you wipe to factory resets, add your google account, but don't add anything else, does the same thing occur?
If so, I would say it's a hardware issue, otherwise it's probably software.
I saw someone suggest using better battery stats, and you said that it didn't help, what do you mean it didn't help? It doesn't fix anything, it just lets you identify WHAT is using the battery.
My Galaxy S used to drain to 50% overnight, turns out it was the instant messaging (using MSN) that was doing it.
Like I said, try it after a clean factory reset with just our gmail account, no MSN, no Hotmail, no Yahoo, etc and no Additional Apps
or you can try speedmod's kernel ... test 13 i think is the latest ..
works a wonder to me in terms of battery performance
I can try another Kernal, but I have switched recently.
Because of this issue, the last time I switched roms and kernals I did a clean start, and I didn't restore anything, I literally started from fresh.
I'm using VillainRom 3.0
Kernal: Siyah 2.1.1
Modem: KI3
I will have another look at battery stats aswell.
I have added some screen caps of my batterys stats to The op, I'd appreciate it if you'd have a look.
Thanks again.
I won't bump this again if there are no replys, but just incase it was missed.
Sorry.
Ok, I installed 2.3.6 from AT&T and my bettery life has tanked.
Batter Usage shows the Android OS at 93%!!!
Not using my phone, it is dead in about 7 hours.
Kernel Version
2.6.35.7
Build Number
GINGERBREAD.UCKK6
I am not rooted and dont want to root.
HELP!
Tymong said:
Ok, I installed 2.3.6 from AT&T and my bettery life has tanked.
Batter Usage shows the Android OS at 93%!!!
Not using my phone, it is dead in about 7 hours.
Kernel Version
2.6.35.7
Build Number
GINGERBREAD.UCKK6
I am not rooted and dont want to root.
HELP!
Click to expand...
Click to collapse
You have an app that is driving data to your phone, causing the wifi chip to wake the phone all the time. Apparently a system app - a lot of people have been having this issue with KK6.
Beyond this - sorry, but if you are not rooted you will have to live with it. Identifying what is triggering the wifi interrupts requires obtaining a Wireshark capture, this is not possible without root. Even if a common root cause is found for what's going on with KK6, it's most likely in /system itself so can't be fixed without a custom ROM or at least rooting.
If you're not willing to root, why are you on a firmware developer forum? Have AT&T help you instead if you're on 100% bone stock unrooted.
Well if it's an APP causing it, then many many people must be running the same app cause all of the various forums out there are a lot of people with the battery drain after updating to 2.3.6. Even a lot of my customers have mentioned it also.
I doubt it is an APP doing it. I'd bet it is just some bad coding on Samsung's part. They are probably getting a lot of complaints and are most likely already looking into it.
As far as the why he is here if he doesn't root. Well I don't root as well and have no desire to being as stock works just great. (other than the battery drain)
This is a great place to hang out and keep up on other people using various phones. He posted in the General section, not the Developer's section for this phone. So I think his/her question was valid.
If he was asking the question in the Developers section I would understand your concern. But I don't feel you have to be into cooked ROMS to value this forum.
That's like saying to the people who like the "Fast and the Furious" moves to stop watching them because they have a Chevy and not a pimped up Civic.
Tymong said:
Ok, I installed 2.3.6 from AT&T and my bettery life has tanked.
Batter Usage shows the Android OS at 93%!!!
Not using my phone, it is dead in about 7 hours.
Kernel Version
2.6.35.7
Build Number
GINGERBREAD.UCKK6
I am not rooted and dont want to root.
HELP!
Click to expand...
Click to collapse
I'm not rooted with wifi on all the time just got the phone 3 days ago and I'm getting 14-15hrs with no issue down to about 15-20% battery life left before I have to stick back on charger. Could be a bad battery or device, I'm coming over from Sprint after using rooted evo3d and rooted photon.
Sent from my SAMSUNG-SGH-I777 using xda premium
The forum is called xda-DEVELOPERS.com
If you don't want to root, you're probably better off in the AT&T support forums, because honestly, it isn't worth our time to try and help someone who doesn't want to root fix a problem that is almost sure to require root access to fix, or in this case, even diagnose.
I do believe many are having this issue after upgrading to kk6 (with same apps installed). I had the issue as well.
May be a system app, or something in /system causing an app to become unhappy.
Either way, it's not going to get fixed without Shark for Root captures from those encountering problems.
Sent from my GT-P7510 using Tapatalk
browncarpet said:
I do believe many are having this issue after upgrading to kk6 (with same apps installed). I had the issue as well.
Click to expand...
Click to collapse
I don't think it anything to do with KK6. As Entropy said its an app causing a wake lock. I'm run Ingram KK6 without any issues with battery.
Sent from my sgh-i777 using xda premium
Having this issue as well. Phone is stock. Ive been here since the captivate but I hang around with the sgs2. Never needed to root this phone as it works perfectly for me. But I did the update this morning at 100% charge and 9 hours later with no use it's down to 9%. I could go all day with moderate use and be at 30-40% by the time I go to bed.
I read on a rather long on a google forum that many had this issue after upgrading via ota but who knows. I found that wiping dalvik and flashing unnamed update again I have much better batter life. I did read in update that he reverted to an earlier kernel signature to fix the battery drain.
Im going back to 2.3.4 via this method.
http://galaxys2root.com/att-galaxy-s2/how-to-unroot-att-galaxy-s2-sgh-i777/
Losing 10% of my battery at idle /hour is ridiculous lol. Android os was at 87+% within 3 hours of restart.
Edit:
Okay so I did this method. Took about 5 mins after I got everything downloaded. I did not do the factory reset since it's not needed. Phones back to 2.3.4 and nothing was reset. Have all my sms's contacts, aps, wallpapers etc. Battery seems to be back to normal.
I recommend everyone who did that 2.3.6 update to revert back. To many problems with it.
I never entered download mode on this phone before. Just a tip: Keep holding all the buttons till the phone seems like it shuts off and keep holding them till you get into download mode. Do not let go or else it just powers off.
For the purposes of attempting to fix the problem, I really would like some people to take some Shark for Root captures as described in my Known Battery Drainers thread.
With that data, the root cause of the problem might be identifiable.
So far I've only seen one capture, I really need more unless I can reproduce the problem myself.
Entropy512 said:
For the purposes of attempting to fix the problem, I really would like some people to take some Shark for Root captures as described in my Known Battery Drainers thread.
With that data, the root cause of the problem might be identifiable.
So far I've only seen one capture, I really need more unless I can reproduce the problem myself.
Click to expand...
Click to collapse
I'm also having battery issues but would like to try to fix it before giving up.
I've searched a bunch but can't find that thread. Not at home to try it on my PC so if you'll link it here, I'll do what I can to get some captures for you.
Sent from my SAMSUNG-SGH-I777 using Tapatalk
[REF] Known identified battery drainers
n7slc said:
I've searched a bunch but can't find that thread. Not at home to try it on my PC so if you'll link it here, I'll do what I can to get some captures for you.
Click to expand...
Click to collapse
[REF] Known identified battery drainers
I read a possible solution on another forum and tried it with my SGS2 today and am amazed at the difference today in my battery life.
Worth a shot as it does not require anything more than charging your phone and pulling the battery.
Charge your phone to 100% with the phone off (hold the power button for 3 seconds or so until the menu comes up and select power off). When you reach 100%, unplug the charger and remove your battery (some said keep the battery removed for 90 seconds while others said 3-5 minutes). I left my battery out for 5 minutes or so. Put the battery back in and power on.
That was it. My Android OS went back to normal and the battery life today has been great if not better then with 2.3.6 than before I updated.
Screen grab of my current battery use after trying this method this morning is attached.
radeon962 said:
I read a possible solution on another forum and tried it with my SGS2 today and am amazed at the difference today in my battery life.
Worth a shot as it does not require anything more than charging your phone and pulling the battery.
Charge your phone to 100% with the phone off (hold the power button for 3 seconds or so until the menu comes up and select power off). When you reach 100%, unplug the charger and remove your battery (some said keep the battery removed for 90 seconds while others said 3-5 minutes). I left my battery out for 5 minutes or so. Put the battery back in and power on.
That was it. My Android OS went back to normal and the battery life today has been great if not better then with 2.3.6 than before I updated.
Screen grab of my current battery use after trying this method this morning is attached.
Click to expand...
Click to collapse
Placebo effect - did nothing a plain old reboot would not have done.
Entropy512 said:
Placebo effect - did nothing a plain old reboot would not have done.
Click to expand...
Click to collapse
Quite possible, but still running on the same charge from this morning and am at 28% battery after 14+ hours of normal use which is all I expect (calls, texts and light web browsing during the day over data) and then couple hours of web use at night over Wi-Fi when at home.
The last few days I was charging the phone when I got home from the office if I wanted to use it at night. Android OS was way up in the 60+ range after I first updated OTA and today it has been under 20% and more near 15%, so I'll take it.
---------- Post added at 11:09 PM ---------- Previous post was at 10:59 PM ----------
Come to think, I probably did not do a reboot after the update and could have been all that was needed.
radeon962 said:
I read a possible solution on another forum and tried it with my SGS2 today and am amazed at the difference today in my battery life.
Worth a shot as it does not require anything more than charging your phone and pulling the battery.
Charge your phone to 100% with the phone off (hold the power button for 3 seconds or so until the menu comes up and select power off). When you reach 100%, unplug the charger and remove your battery (some said keep the battery removed for 90 seconds while others said 3-5 minutes). I left my battery out for 5 minutes or so. Put the battery back in and power on.
That was it. My Android OS went back to normal and the battery life today has been great if not better then with 2.3.6 than before I updated.
Screen grab of my current battery use after trying this method this morning is attached.
Click to expand...
Click to collapse
I did this and saw absolutely no change. 2.3.6 is draining my battery far faster than 2.3.4 ever did. The culprit is the Android OS running at 90%.
I read that it might be an issue with the wifi so I have turned that off and will report back if that seems to fix it.
I read on another forum that att and Samsung are trying to blame it on bad batteries and shipping out new batteries.
What a bunch of crap. People everywhere wouldn't suddenly all have bad batteries at the same time. Sounds like usual BS.
I personally think its just some bad coding that Samsung needs to figure out.
On a different note, I played with the Verizon Droid Razr yesterday. Man that is a really nice phone. I'm tempted to get it, but I work for att and get free cell service, so it wouldn't make sense to pay for Verizon service, even though I think their network is better.
Sent from my SAMSUNG-SGH-I777 using XDA App
chocodough said:
I read on another forum that att and Samsung are trying to blame it on bad batteries and shipping out new batteries.
What a bunch of crap. People everywhere wouldn't suddenly all have bad batteries at the same time. Sounds like usual BS.
I personally think its just some bad coding that Samsung needs to figure out.
On a different note, I played with the Verizon Droid Razr yesterday. Man that is a really nice phone. I'm tempted to get it, but I work for att and get free cell service, so it wouldn't make sense to pay for Verizon service, even though I think their network is better.
Sent from my SAMSUNG-SGH-I777 using XDA App
Click to expand...
Click to collapse
Android OS is definately eating up the battery now. I think it does have to do with wifi, because it seems to be much improved with it off. I'll take a free battery as long as I don't need to exchange the old one.
Like the title says:
I use the stock rom and after the Update on ICS i noticed my phone is getting really hot even when im not using it. I tried using advanced task killer to close app running in the background and i also close every app i use in ics multitasking... its draining battery very fast! 40 % in 30 minutes. Its not warm the whole time just sometimes it gets warm and drains battery... dont know what to do :/
YoungDipCLP said:
Like the title says:
I use the stock rom and after the Update on ICS i noticed my phone is getting really hot even when im not using it. I tried using advanced task killer to close app running in the background and i also close every app i use in ics multitasking... its draining battery very fast! 40 % in 30 minutes. Its not warm the whole time just sometimes it gets warm and drains battery... dont know what to do :/
Click to expand...
Click to collapse
I had same thing using google maps with gps (as car navigation) but this is the only case. Idle it acts normal.
Taskiller self can take very much battery and make phone hoter. I really dont see + for using them. You need just check battery menu which app take so much battery and then we can help you more.
Sent from my ST15i using xda app-developers app
madhouses said:
Taskiller self can take very much battery and make phone hoter. I really dont see + for using them. You need just check battery menu which app take so much battery and then we can help you more.
Sent from my ST15i using xda app-developers app
Click to expand...
Click to collapse
Taskkiller itself is not running in background. i use it sometimes to look which app are running in background and to kill the ones i dont need. The problem is the battery status is looking normal. Display 33% phone 19% and some other apps do also drain battery.... but the problem is its only getting warm when i dont use it. sometimes when its laying on my desk i pick it up and notice this. when i look at my battery then its sometimes 20% less then 10 minutes before when i checked facebook for example. for me this must be something with the firmware or not? or some hardware defect?
maybe take it to a mobile service
Did you make wipe after ICS update? Maybe its a bad configuration after the update.
Also, you can try CPU Spy in Google Play and tell us if phone is on state "deep sleep" (when you lock the phone, it should enter this state where battery drain is minimal).
Make screenshot of Battery Usage screen and post it here.
Then install BetterBatteryStats, use it for few days, then make screenshots(Partial Wakelocks, Alarms and Processes) and post these here.
I have the same problem, but I know it comes from the Exchange service. Sometime it becomes crazy and drain the battery + heat the phone.
For now, I just have disabled my Exchange account... Not really a good solution.
I have found others thread talking about this problem on other phones (all with ICS), but found no answer.
I did not made any wipe, nor before, nor after the update (from stock GB to stock ICS).
It's not very helping, I fear...
just a few senteces about my day:
The battery was loading untill 7:15 today then i went to school; my phone in silence mode and i used it for 4-5 whatsapp messeges and maybe 3 facebook checks and 1 or 2 instagram checks.
it got hot a few times again and its on 34% now. really bad i would say. on gingerbread i had like 60-80% after a half day in school with much more use.
Now i looked what drained Battery. in ics i cant take screenshot so i just write it down:
40% Facebook Calendar Sync
19% Display
10% Phone
8% STandby
6% WLAN
5% Android Core Apps
4% Facebook
4% Android OS
2% Android System
This is the first time i look at the battery drain seeing that Calendar Sync is taking so much Battery. I still believe it could be something else because before it was nearly the same without calendar sync and display on first place.
So for now i think im going for a wipe, hoping it will be better then.
i will share my experience with you asap. :good:
woah, 40% on that FB crap?
also, the system standby usage seems a bit large also.
try to wipe it, maybe flash some other ROM and see if it helped you.
a healthy battery usage would have display at 70% or so, phonecalls 15%, then all the rest.
depends on your usage tho.
but something is definetly wrong with your phone.
you said that the problem occured after you updated it,
so i think the hardware is out of the question (if the phone worked normal before the update), i'd definetly flash something there, the stock rom is useless anyways..
there are very good roms even if you have locked BL, check kamarush and the new CyanogenTimescape rom also.
keep us updated about ur problem
Cheers!
dodsi said:
woah, 40% on that FB crap?
also, the system standby usage seems a bit large also.
try to wipe it, maybe flash some other ROM and see if it helped you.
a healthy battery usage would have display at 70% or so, phonecalls 15%, then all the rest.
depends on your usage tho.
but something is definetly wrong with your phone.
you said that the problem occured after you updated it,
so i think the hardware is out of the question (if the phone worked normal before the update), i'd definetly flash something there, the stock rom is useless anyways..
there are very good roms even if you have locked BL, check kamarush and the new CyanogenTimescape rom also.
keep us updated about ur problem
Cheers!
Click to expand...
Click to collapse
what do you mean with there are good roms that do not need unlocked BL. Can i just flash them through windows without rooting?
YoungDipCLP said:
what do you mean with there are good roms that do not need unlocked BL. Can i just flash them through windows without rooting?
Click to expand...
Click to collapse
No, you can flash them using CWM. Here they are:
http://forum.xda-developers.com/showpost.php?p=28374539&postcount=2
YoungDipCLP said:
what do you mean with there are good roms that do not need unlocked BL. Can i just flash them through windows without rooting?
Click to expand...
Click to collapse
you must root first, then copy the rom to SD, reboot in CWM, and install from there. it's pretty straightforward from there on just make sure you select "locked bootloader" when prompted.
After the update from gb to ics I didn't notice a much higher battery drain. I use it like on gb and on my feelings battery lifetime stays equal to gb. I have got an unlocked bootloader but still on stock rom using rage kernel ics 3.2.
Sent from my ics wt19i using tapatalk 2
Soooo. I looke up what have drained my battery and it seems that the Xperia Facebook sync (The stock sync thats buildin in the normal firmware) have drained the battery. on GB everything worked fine. Now i deactivated the sync and the battery life is much better. It seems that my phone also stopped getting hot. But for me GB still had a better battery life. Today i woke up at 7 am (germany) and played Football Manager a few times between the lessons and in a free lesson so im at 16% battery now (should be ok because the football manager drains a lot of battery) and battery usage shows:
64% display
16% FMH 2012 (football manager)
7% Android System
5% Mobilfunk-Standby
4% Facebook
etc etc etc.
looks normal for me :good:
guys my battery life is fine now but i have freezes now... if i use my phone for whatsapp it sometimes just completely freezes. no chance to see a reaktion for any button any ideas wtf is going on there?
Battery drain that you've encountered is definitely not normal. I get about 3 days on ICS, and think that is what you should be getting as well. Crappy FB application is either bugged or broken, because you're not the first one that got their battery drained by FB calendar sync. My advice would be to remove FB calendar sync service, or disable it somehow, if you're not using it.
YoungDipCLP said:
guys my battery life is fine now but i have freezes now... if i use my phone for whatsapp it sometimes just completely freezes. no chance to see a reaktion for any button any ideas wtf is going on there?
Click to expand...
Click to collapse
Did you remove all unnecessary bloatware ?
loCe45 said:
Battery drain that you've encountered is definitely not normal. I get about 3 days on ICS, and think that is what you should be getting as well. Crappy FB application is either bugged or broken, because you're not the first one that got their battery drained by FB calendar sync. My advice would be to remove FB calendar sync service, or disable it somehow, if you're not using it.
Did you remove all unnecessary bloatware ?
Click to expand...
Click to collapse
On the xmp with ics you have xperia facebook. its a facebook calendar, contacts etc sync by sony. This was the app draining my battery. i disabled it and now i have like 1 1/2 day battery with normal usage.
And for my problem with the freezes. i removed all bloatware i could but my phone is not rooted. i was thinking about rooting but i'm kinda new to the xmp roms and its hard to find ics ones that are working perfectly. before i had an lg p990 and i was using cm7.2. it was working like a charm.
i know how to root the xmp i saw some tutorials but im still not convinced
YoungDipCLP said:
On the xmp with ics you have xperia facebook. its a facebook calendar, contacts etc sync by sony. This was the app draining my battery. i disabled it and now i have like 1 1/2 day battery with normal usage.
And for my problem with the freezes. i removed all bloatware i could but my phone is not rooted. i was thinking about rooting but i'm kinda new to the xmp roms and its hard to find ics ones that are working perfectly. before i had an lg p990 and i was using cm7.2. it was working like a charm.
i know how to root the xmp i saw some tutorials but im still not convinced
Click to expand...
Click to collapse
Try to open Facebook, scroll many news until the phone start to go slower... Then, scroll a little more, and then go on Whatsapp or other app, you'll find a surprise
Hi, I downloaded and installed XWLPY NeatRom Lite v3.5 (18th October 2012)a couple of days ago and now my battery is draining extremely fast. I tried a couple of battery managers and nothing seems to work.
Anyone with any ideas on what I can do to remedy this? Plus I can't see the update section in my settings, is it removed with this software?
Kaz0721 said:
Hi, I downloaded and installed XWLPY NeatRom Lite v3.5 (18th October 2012)a couple of days ago and now my battery is draining extremely fast. I tried a couple of battery managers and nothing seems to work.
Anyone with any ideas on what I can do to remedy this? Plus I can't see the update section in my settings, is it removed with this software?
Click to expand...
Click to collapse
The ROM doesnt have an update because the devs have removed it because you just flash an update. As for the battery drain give it a few more days if the problem persists try another ROM. If it still persists after that try recalibrating the battery or resetting the fuel gauge chip.
Hope this helps
NeatROM v3.5
Kaz0721 said:
Hi, I downloaded and installed XWLPY NeatRom Lite v3.5 (18th October 2012)a couple of days ago and now my battery is draining extremely fast. I tried a couple of battery managers and nothing seems to work.
Anyone with any ideas on what I can do to remedy this? Plus I can't see the update section in my settings, is it removed with this software?
Click to expand...
Click to collapse
Hi,
NeatROM 3.5 is one of the best ROMs from battery backup perspective. And I can say that because I am using it since 3.5 came out and have never had any issues.
For a better battery life, follow the steps from the link,
http://forum.xda-developers.com/showpost.php?p=33045733&postcount=8776
Please note that the instructions are prepared to get the most out of your battery. Even if you follow the few ones that you are comfortable with, you will surely see some improvement.
Please press Thanks if this has helped you.
NeatROM 3.5 is one of the best ROMs from battery backup perspective. And I can say that because I am using it since 3.5 came out and have never had any issues.
Click to expand...
Click to collapse
I agree with you .I use NeatRom 3.5 with Dorimanx, the best combination for me.
Adarzannh said:
The ROM doesnt have an update because the devs have removed it because you just flash an update. As for the battery drain give it a few more days if the problem persists try another ROM. If it still persists after that try recalibrating the battery or resetting the fuel gauge chip.
Hope this helps
Click to expand...
Click to collapse
Sound complicated, thanks though.
Kaz0721 said:
Sound complicated, thanks though.
Click to expand...
Click to collapse
Its simple mate. Just download an app and hit a button.
Usually battery drain is due to one of two things.
-Phone not going into deep sleep
-Wakelocks.
Download an app like CPU spy. you can use it to see whether or not your phone is going into deep sleep like it should. Also, use better battery stats to look for wakelocks. Download the app from HERE , let it run for one battery cycle and then check for wakelocks. If you dont know what those are, spend some time reading that thread.
But if you want to hold off for a couple of days, you can do that. It does take some time for a phone battery to settle when a new rom/kernel has been installed, after which battery life tends to improve.
HAXTREME said:
Its simple mate. Just download an app and hit a button.
Usually battery drain is due to one of two things.
-Phone not going into deep sleep
-Wakelocks.
Download an app like CPU spy. you can use it to see whether or not your phone is going into deep sleep like it should. Also, use better battery stats to look for wakelocks. Download the app from HERE , let it run for one battery cycle and then check for wakelocks. If you dont know what those are, spend some time reading that thread.
But if you want to hold off for a couple of days, you can do that. It does take some time for a phone battery to settle when a new rom/kernel has been installed, after which battery life tends to improve.
Click to expand...
Click to collapse
Thank you very much for your help mate. I've tried a couple of battery managers off play (juice defender and another one). Right now kind of regretting this download, everything seems to be going wrong;
1. battery is draining @ 15% in 20 mins ( I only bought the battery last week after having the phone unlocked).
2. there's a lot of lag
3. screens keep freezing and
4. keep losing reception and constantly having to restart phone.
I only downloaded this cause after unlocking my phone it failed to update. Is there any other that I can download that works well with SGS2?
There's no dearth of ROMs for the i9100 dude. Try a couple out and see if those help. If its stability you're after, maybe use an ICS Rom rather than JB.
15% in 20 mins isn't normal even for a first day..you sure it isn't a faulty battery right? Was it giving decent life before you switched to this ROM?
Try downloading a calibration app and see what the voltage is when it says its charged 100%. Should be around 4100-4200 mAh.
As for the lags and freezes, did you wipe data, cache etc before you installed this Rom?
Sent from my GT-I9100 using xda app-developers app
I had cleared the cache in settings before installing. Like I said, my first time doing this. Seemed straight forward at the time.
Since my phone is unlocked, will it return to ics4.0.3 which is what I had before?
Battery calibration app is showing 4161mv.
Will a factory reset help?
Thanks for all the help, site can be a bit confusing sometimes lol.
Sent from my GT-I9100 using xda app-developers app
Kaz0721 said:
I had cleared the cache in settings before installing. Like I said, my first time doing this. Seemed straight forward at the time.
Since my phone is unlocked, will it return to ics4.0.3 which is what I had before?
Battery calibration app is showing 4161mv.
Will a factory reset help?
Thanks for all the help, site can be a bit confusing sometimes lol.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
Cache from settings? No. I meant clearing cache from the CWM recovery menu. If you installed the ROM via CWM, that is.
If you did, I'd suggest reinstalling it again via cwm this time clearing data, cache and dalvik cache.
Ok..I just realised I totally assumed you'd installed it using CWM. Not sure if you did.
You can return to 4.0.3 if you want. Download stock firmware from sammobile.com and install it via Odin. I'm sure there's a guide on how to do that somewhere on this site.
Just noticed someone posted instructions on maximising battery. Did you use those? It could explain the freezes if they started after that. Some phones just can't handle undervolting etc.
Sent from my GT-I9100 using xda app-developers app
Morning, I downloaded some battery managers and seems to be working better and faster. Battery discharged 27% in 5 hours.
Will see how it goes over the next couple of days.
Teaches me a lesson to do my research first lol.
Below is a screen shot of the apps I installed.
Thanks and gave a great day!
Sent from my GT-I9100 using xda app-developers app
Haha that's a lotta apps just to save battery. As long as it helps eh? 27% in 5 hours is pretty acceptable for moderately heavy use. Depends on your signal strength and whether you're using data or on WiFi etc.
Sent from my GT-I9100 using xda app-developers app
Hello
I updated my Galaxy S2 via Odin(PC) from Stock 4.0.4 to Stock 4.1.2. All went fine, phone works smooth and fast. But there was a massive battery drain. Therefore i wiped data/cache, did a factory reset, everything is new an fresh. Phone still works smooth and fast but battery drain doesn't change. Take a look at the screenshot. Is there something i can check and change?
Thanx in advance.
Greetings
Nicolas
Chill let the rom settle for a while, the battery is usually weird after a flash use it for a few cycles and then it should be alright
stand edgoryn
1Chef said:
Chill let the rom settle for a while, the battery is usually weird after a flash use it for a few cycles and then it should be alright
Click to expand...
Click to collapse
Thanx for your reply. But i cannot confirm that. Never had such a behavior. Flashed a few ICS 4.0.3 and 4.0.4 Roms and either thery're draining or not unless i'm able to change or fix somthing. It never improves on its own. Maybe it's my bad luck only.
Do we really need another "battery drain/problem" thread?
The answers you get here are going to be no different to the other topics that already cover this so please use search in future and get your answers quicker instead of duplicating topics that add to dilution of forum.
TheATHEiST said:
Do we really need another "battery drain/problem" thread?
The answers you get here are going to be no different to the other topics that already cover this so please use search in future and get your answers quicker instead of duplicating topics that add to dilution of forum.
Click to expand...
Click to collapse
Yes, you are right. But i read a lot about battery drain problem in the dev thread and also tried a few, ok not all, things to fix it. Until nothing works for me i wanted to upload my battery stats but wasn't allowed to because i'm a noob. Therefore i opened up a new threat to upload my screenshot and hope someone has the right advice for me or just simply says "bad luck my friend. This Roms seems not to work for you".
And sorry again if i don't behave the right way.
Greeting
Nicolas
nico_las said:
Yes, you are right. But i read a lot about battery drain problem in the dev thread and also tried a few, ok not all, things to fix it. Until nothing works for me i wanted to upload my battery stats but wasn't allowed to because i'm a noob. Therefore i opened up a new threat to upload my screenshot and hope someone has the right advice for me or just simply says "bad luck my friend. This Roms seems not to work for you".
And sorry again if i don't behave the right way.
Greeting
Nicolas
Click to expand...
Click to collapse
I;m not talking about the specific rom thread I'm speaking in general. We have plenty of Q&A/general topics about battery drains etc have a good search and read.
TheATHEiST said:
I;m not talking about the specific rom thread I'm speaking in general. We have plenty of Q&A/general topics about battery drains etc have a good search and read.
Click to expand...
Click to collapse
Yes i will.
But, generally, flashing different Roms causes different issues. Reading solutions based on different ROMs, Custom ROMs, etc. isn't very helpful. There may be general solutions for this damn battery draining problem. But until now nothing fits to me.
In the end i hope to find a solution or i will go back to ics.
Have a nice day
Nicolas
nico_las said:
Yes i will.
But, generally, flashing different Roms causes different issues. Reading solutions based on different ROMs, Custom ROMs, etc. isn't very helpful. There may be general solutions for this damn battery draining problem. But until now nothing fits to me.
In the end i hope to find a solution or i will go back to ics.
Have a nice day
Nicolas
Click to expand...
Click to collapse
Your absolutly right, i read many problems, but with those stats are weird.
1) Just try to re-flash the ROM and after go to recovery and clear everything(dalvik, data etc).
2) Use the option to reboot.
3) Turn off phone -> remove the battery -> Try to turn the phone ON without battery one or 2 times -> wait 2-5minutes more without doing nothing -> Battery back in.
4) Charge up to 100% (when the icon appears).
5) Wait for 1-3 cycles and check if its ok.
6) If you have media draining check my signature link.
Issue solved, probably
I probably solved my battery drain issue while doing what CrisR82 suggested in his post here:
http://forum.xda-developers.com/showpost.php?p=37227296&postcount=10017
" Battery drain is caused by a permanent wake-lock (I had that issue).
For everyone with that problem, here's what I did and got rid of it:
1 - fully drain your battery (0%, to the point where it won't power-on at all)
2 - recharge your battery without turning on the phone
3 - go to recovery mode and wipe both data and cache
NOTE: backup all your contacts, messages, whatever...this will delete everything!
(I formatted my USB storage aswell before step 1, but I think that's not necessary)
No wake-lock for me, 17 hours use, 12% battery down (only checking the clock every once in a while)."
As it seems it worked for me also. Did it yesterday evening and keep in mind i did a factory reset therefore i had to reinstall everything. Battery is behaving normally again.
Maybe this helps the one or the other.
Greetings
Nicolas
Now, right solution
Ok, my mistake!
At first it seems that there is an improvment in battery life like i said in the above post. There is ... but slightly. Not enough, not acceptable at all.
To make it short.
I did a clean install. That's it. Wiped everthing, pumped the battery up to 100% and flashed Samsung Stock jb 4.1.2 again. And it works now.
Thanks all for your advice.
Greetings
Nicolas
nico_las said:
Ok, my mistake!
At first it seems that there is an improvment in battery life like i said in the above post. There is ... but slightly. Not enough, not acceptable at all.
To make it short.
I did a clean install. That's it. Wiped everthing, pumped the battery up to 100% and flashed Samsung Stock jb 4.1.2 again. And it works now.
Thanks all for your advice.
Greetings
Nicolas
Click to expand...
Click to collapse
I can confirm this.. I also did full data wipe on ICS 4.0.4 then flash to 4.1.2 JB and again full data wipe after first boot on 4.1.2 JB..
My first battery cycle went up to 2d 11h 34m 12s.. now im on my second cycle.. so far is 61% 1d 2h 39m 24s..
I hope this will help.. :fingers-crossed:
z89x23 said:
I can confirm this.. I also did full data wipe on ICS 4.0.4 then flash to 4.1.2 JB and again full data wipe after first boot on 4.1.2 JB..
My first battery cycle went up to 2d 11h 34m 12s.. now im on my second cycle.. so far is 61% 1d 2h 39m 24s..
I hope this will help.. :fingers-crossed:
Click to expand...
Click to collapse
Me again.
My battery drained in 21 hours even after reinstalled everything after a full wipe. Couldn't find out what process caused the drain. Used bbs and its stats say android os, screen and Android in sleepmode is using most of the battery.
I'm back on 4.0.4 now. Waiting for next jb version.
Greetings
Nicolas
nico_las said:
Me again.
My battery drained in 21 hours even after reinstalled everything after a full wipe. Couldn't find out what process caused the drain. Used bbs and its stats say android os, screen and Android in sleepmode is using most of the battery.
I'm back on 4.0.4 now. Waiting for next jb version.
Greetings
Nicolas
Click to expand...
Click to collapse
How's your battery on ICS?
changekernal
dude best thing to do is root your phone, flash different kernal , siyah perhaps or dorimanx, im on siyah beta for jellybean, battery life is awsome
gastonw said:
How's your battery on ICS?
Click to expand...
Click to collapse
Thought I should share that I tried the same and face the same issue. Before JB, on completely stock 4.0.4 (no root), I would charge after three full days (72 hrs). Moderate/normal use - no heavy gaming. Under JB it drained in less than 24 hrs with very moderate use - mostly idle. Back on ICS i now get the same battery time as before.
I should add that my phone came new with ICS 4.0.4 installed. Two friends of mine have upgraded theirs all the way from GB -> ICS -> JB and they exeperience significant battery improvement. Being a noob, I don't understand whether this makes any difference. Simply coincidence?
All the best.
sten_amund said:
Thought I should share that I tried the same and face the same issue. Before JB, on completely stock 4.0.4 (no root), I would charge after three full days (72 hrs). Moderate/normal use - no heavy gaming. Under JB it drained in less than 24 hrs with very moderate use - mostly idle. Back on ICS i now get the same battery time as before.
I should add that my phone came new with ICS 4.0.4 installed. Two friends of mine have upgraded theirs all the way from GB -> ICS -> JB and they exeperience significant battery improvement. Being a noob, I don't understand whether this makes any difference. Simply coincidence?
All the best.
Click to expand...
Click to collapse
New ROMs are always smoother than previous ones, once you flash em you get in cant-put-it-down mode. You need at least 1 week to judge battery life on any ROM. A couple of days to set it up and a few days to see how it behaves.
Once you get things going you never go back, that's a fact.
Be careful on 4.0.4.
Sent from the little guy