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[onecosmics' ics rc2.1] super duper mega extremly bad battery life .

First of all , I really like the work onecosmic has been doing , keep up the good work !
I am currently using the RC2.1 build combined with fugo kernel . so far epic . I'd really want to use this rom on daily basis but the problem is that i get horrible battery life. at first I reflashed everything (including all wipe needed in the order specified) but that didn't help . I am currently on my 4th or 5h cycle of calibration but it gets worse every time .
here is a screen shot from the 2nd cycle (started fully charged ):
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i lost 75% in 5hrs of normal+- use . :\
here is one from now (started fully charged )
40% in one hour . i played a couple of games for 20 minutes and thats it . it dropped me to 79% and than i stopped using my phone . the battery dropped alone to about 60% short time after that .
What can i do to improved it ? I tried to avoid widgets , reflashing and wiping , other kernels that seem to mess up my rom and get the home button not to work (nushors) ...
I thank you all in advance for your , I hope you could help me solve my problem

michel9501 said:
First of all , I really like the work onecosmic has been doing , keep up the good work !
I am currently using the RC2.1 build combined with fugo kernel . so far epic . I'd really want to use this rom on daily basis but the problem is that i get horrible battery life. at first I reflashed everything (including all wipe needed in the order specified) but that didn't help . I am currently on my 4th or 5h cycle of calibration but it gets worse every time .
here is a screen shot from the 2nd cycle (started fully charged ):
i lost 75% in 5hrs of normal+- use . :\
here is one from now (started fully charged )
40% in one hour . i played a couple of games for 20 minutes and thats it . it dropped me to 79% and than i stopped using my phone . the battery dropped alone to about 60% short time after that .
What can i do to improved it ? I tried to avoid widgets , reflashing and wiping , other kernels that seem to mess up my rom and get the home button not to work (nushors) ...
I thank you all in advance for your , I hope you could help me solve my problem
Click to expand...
Click to collapse
Check in battery settings what is using your battery so much.. if anything other than Android OS (could be till 30-40%) is consuming your battery.. take action regarding that..
if this doesn't work, then clear your battery stats through recovery and calibrate for another 3-4 full charge/discharge cycles.. should solve your problem

Tried everything . battery still sucks

I think it's the HSPA/WCDMA network type. I use GSM only and I get 1day +.

You forgot to post most importat thing, how long display was on. From screens I can see it was on alot.
If it had 3-4 hours, it's probably okay since you had data enabled aswell.

try buid 13 teamhacksung.
I'm on it! And it's better than CM7.
Sent from my GT-I9000 using XDA Premium App

What means better than CM7? Can you give an example: e.g. 2 days with normal usage.

I don't have good battery life too. We just need to wait for devs to improve it...

music player not working
video player not showing all videos
can't add or remove homescreens
m on glitch kernell

Okay, means we still have to wait.
Sent from my GT-I9000 using XDA App

Ok, did you intall the rom with the battery full charged? This may be the problem

@chriss23: how is your battery expierence with build 13?

i am on the second battery cycle with onecosmics mod. normal use of the phone and 63% left after 32hours. its ok but when i use some apps the battery drains one percent on only a few minutes. iam unsure if this is normal. usage of android os in battery stats says 26%.. in gingerbread, this was too much but would you say its normal on ics?
thank

Hello all. I had also battery issues with the new roms of ICS. I exclude usage of data which one way or another makes things worse. I believe that issues will be fixed soon since the difference between the first versions of roms and the newest ones is significant. Freezing also some unneeded background processes always help (i use titanium for this). Playing among different kernels and undervoltaging can also help.

[Q] Why My Note is always Awake?

Dear All,
here is my Note 2.3.6 stock rom with Franco #6 kernel Battery usage (in pic 1&2)
It shows that my note was awake mostly all the time although as you can see from the pic that the phone screen is off most of the time (almost did not use it that day)
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1-is this because I was leaving the wifi on most the time?
Edit: I turned the wifi before sleep and after 6 hours I found the phone was awake all the 6 hours and sygic was off
this an old pic (couple of days before) and you can see my wifi was on all the time while the phone was not awake most of the time
2- Why my signal bar in pic is yellow and not green as usual?
and in pic 2 here is my apps, so which one caused this awake?
Final results after long day of asking, getting help from replies here, reading and trying, everything is fixed after doing restart

Run BetterBatteryStats to find the app causing the wakelocks
Sent from my superior GT-N7000 using Tapatalk

Zamboney said:
Run BetterBatteryStats to find the app causing the wakelocks
Sent from my superior GT-N7000 using Tapatalk
Click to expand...
Click to collapse
Don't keep your WiFi and GPS (Sygic) on all the time. Looks like that's what's stopping your Note from going to sleep.

Don't know if this is an actual fix, but what I discovered is that turning the screen off by pressing the 'Power' button on the side helps tremendously in preserving my battery life. If I just let the screen time out, my battery gets drained big time.
This may/may not work for you, but it's worth a shot...
(EDIT: This still holds true even when I keep my wi-fi on)

thank you to all who replied here, the main thread is updated , please read it​
Zamboney said:
Run BetterBatteryStats to find the app causing the wakelocks
Sent from my superior GT-N7000 using Tapatalk
Click to expand...
Click to collapse
Looks like has a lot of settings but will try
chasmodo said:
Don't keep your WiFi and GPS (Sygic) on all the time. Looks like that's what's stopping your Note from going to sleep.
Click to expand...
Click to collapse
I turned the wifi before sleep and after 6 hours I found the phone was awake all the 6 hours and sygic was off
Beethoven9th said:
Don't know if this is an actual fix, but what I discovered is that turning the screen off by pressing the 'Power' button on the side helps tremendously in preserving my battery life. If I just let the screen time out, my battery gets drained big time.
This may/may not work for you, but it's worth a shot...
(EDIT: This still holds true even when I keep my wi-fi on)
Click to expand...
Click to collapse
will try that too

Well both old and recent screenshots show the same battery drain and quite similar usage, they lasted for a day and a couple hours.. I think it's a glitch in the system info.
Had a problem a week ago with heavy battery drain in a quite similar manner and I can guarantee that if the phone didn't entered sleep mode it wouldn't even last those 24hrs.

William Haven said:
Well both old and recent screenshots show the same battery drain and quite similar usage, they lasted for a day and a couple hours.. I think it's a glitch in the system info.
Had a problem a week ago with heavy battery drain in a quite similar manner and I can guarantee that if the phone didn't entered sleep mode it wouldn't even last those 24hrs.
Click to expand...
Click to collapse
do you mean that the phone entered deep sleep but the results are not correct or not true?
I have also CPU Spy and it shows that my phone did not enter deep sleep during the last 30 hours (or more)

try uninstalling Sygic.
---------- Post added at 11:29 PM ---------- Previous post was at 11:26 PM ----------
Also, Voice talk has the option to be ready all the time, by "Hi galaxy" command, try disabling that.

[Q] Battery problems when mobile data active

When i turn on mobile data, my phone loses ~7% of the battery per hour. I've already changed the battery about a month ago to a new one, what haven't solved the problem.
Also i have tried almost all available modems for the sgs and even for the nexus s (these modems work very good with only ~1% battery loss, but there is the problem that only the first phone call after reboot is working well).
Here is a screenshot of the battery life:
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One time i thought that an app is using the data connection constantly, but the problem also consists with a fresh updates samsung stock build and all other kitchens (incl. ICS nighlies).
Can anybody help me solving this problem.
Thanks in advance!

Reset battery stats by charging to 100% (Full charge). Go to recovery and wipe battery stats. Continue charging for a further 30 mins. And wipe again.
See if that works

I tried this now with the same result...
It's not getting better, and i think the battery is not the problem. When i call someone the battery drains only about 8% an hour on 3G. The only problem is when mobile data connection is active and so i turn it off after useage, but thats not how a smartphone is supposed to be used.

Sure that no apps are running in the background like faceboor or whatsapp? Seems like something avoids the deepsleep.

I seem to have the exact same problem. The battery drain is caused solely by mobile data being on. When I switch to wi-fi the battery drain stops immediately.
I tried battery calibrations, fresh installs, complete wipes, using no apps, using all my apps, turning all sync off. I also tried different modems, and turning on/off roaming and other mobile data settings to see if they had any effect. Everything I do seems to have no effect on the battery drain except for turning off mobile data.
I added a screenshot to clarify what I mean; this is when using all apps on a moderate sync scheme (gmail and exchange on push, facebook/twitter/other apps either completely off or on 1-2 hour schedules, no changes made in apps or usage during the described period of use.)
Obviously, not using mobile data anymore is no solution to this problem.
I'm using Android 4.0.4 (Team Nyx's RC5, Devil 0.79, XXJVU modem).

I used the JVU modem for a couple of days but ZSJPG was a lot better, also the KF1 was better but not as stable as the ZSJPG.

I have this problem too, for battery when install some apps and open thats cpu usage in backgroun got very fast even if the phone is in Standby and all apps are cloused and my battery get low and lower in les 24 houres . I have this problem in my I9000T 2.3.3
can any boddy help me

psychomaniac82 said:
I used the JVU modem for a couple of days but ZSJPG was a lot better, also the KF1 was better but not as stable as the ZSJPG.
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Click to collapse
I tried the ZSJPG modem as well. It didn't make any difference; same behaviour. I now removed my APN settings; I now temporarily only use wi-fi. It'll easily reach 36 hours now, so no battery problems either.

Did you try a full wipe (realy everything incl. internal SD card, go back to the original firmware (samfirmware.com) and install your custom rom again.
(p.s. a small tip, i'm using tiramislim v2 right now, and its seriously GREAT, also with battery! Devil kernel / zsjpg modem)

psychomaniac82 said:
Did you try a full wipe (realy everything incl. internal SD card, go back to the original firmware (samfirmware.com) and install your custom rom again.
(p.s. a small tip, i'm using tiramislim v2 right now, and its seriously GREAT, also with battery! Devil kernel / zsjpg modem)
Click to expand...
Click to collapse
As I said, yes. Multiple times even. No improvement whatsoever.

I think this could be related to carriers network as many mobile networks are build just before rise of smartphone era. I heard of Fast Dormancy technology which alows disconnect smartphone from mobile data as single session stops. This problem exists not only on our Sgs.
Ask your carrier if it is going to use this near future.

zmagas1 said:
I think this could be related to carriers network as many mobile networks are build just before rise of smartphone era. I heard of Fast Dormancy technology which alows disconnect smartphone from mobile data as single session stops. This problem exists not only on our Sgs.
Ask your carrier if it is going to use this near future.
Click to expand...
Click to collapse
That would be true if I had the same problem before updating to 4.0.4, but I had excellent battery life before the update with mobile data on.

Too fast battery drain

Here are some screenshots from better battery stats and CPU Spy
Trying to figure out why battery drains like 1% in every 20 minutes
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There is no stage lower than 384 MHz
What is this bam_dmux_wakelock

+1
i have same problem please help

saberamani said:
+1
i have same problem please help
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Click to collapse
every smart feature has been disabled
no wifi no bluetooth no gps no bloatware .. location service ON with GPS OFF
wiped dalvik cache
wiped cache partition
did couple of reboots
wakelocks reduced appreciably but i am not sure i did it right.
will post some more stats after 4-5 hour usage

Trying to figure out why battery drains like 1% in every 20 minutes
Click to expand...
Click to collapse
Well that translates to 33 hours of battery life so that's pretty good
This phone is different from others in that the lowest frequency (384mhz) is very high (my nexus 7 stays at 104mhz a lot), so minimizing the number of apps that make use of the phone when it's locked is key, as they would make it run at 384mhz, stamina mode is good with this but I assume you already have it on
So try to search for apps that use services that always run in the background and uninstall the ones you don't use very often

The same thing happened to my SP but only for 3-4 days after flashing a rom, then it was stable and the battery decreased from 100 to 15% after 2 days (light-use) or 24 hours (3G and Location based Wifi were on, without Stamina or Low battery mode enabled).
So, have u flashed rom already?

ZakooZ said:
Well that translates to 33 hours of battery life so that's pretty good
stamina mode is good with this but I assume you already have it on
So try to search for apps that use services that always run in the background and uninstall the ones you don't use very often
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Click to collapse
1% in 20 minutes when display is off. i charge my phone after 15-17 hours. that's how much it actually lasts.
Stamina mode is not enabled. i will try with it too in few days. thanks for the advice though
Qdezi said:
So, have u flashed rom already?
Click to expand...
Click to collapse
yeah i tried the black SystemUI mod but failed and flashed back stock .284 within last 24 hours. shouldn't be sharing this but i've flashed .284 thrice just get black system ui and no success
now i'll wait for battery calibration. thanks!

shubham.12 said:
yeah i tried the black SystemUI mod but failed and flashed back stock .284 within last 24 hours. shouldn't be sharing this but i've flashed .284 thrice just get black system ui and no success
now i'll wait for battery calibration. thanks!
Click to expand...
Click to collapse
It's interesting to do experiment with these Mods, but sometimes we have to pay the price by time and even brick!

Qdezi said:
It's interesting to do experiment with these Mods, but sometimes we have to pay the price by time and even brick!
Click to expand...
Click to collapse
i bricked my galaxy note once. it was a night mare which i wish never to see again:fingers-crossed:. Nexus 4 should have been a better choice this time but i din't knew SP had odexed roms

Xperia V always active

Spoiler
Okay, first of all, I'm on an Xperia V, with latest firmware (4.1), unrooted.
So lately I've been having trouble with battery life. I don't really use my phone much, since I've got a Nexus 7, but the phone just plows through the battery.
The problem was that the phone always stayed active, even with battery saving modes on. Now I didn't use many sensors, like GPS, NFC, BT, and WiFi Location, but still I couldn't get it to last very long.
Now two days ago, I factory reset it and set it up. I tried Smart Connect and Location Based WiFi to automate my phone, and battery life was pretty good, definitely better than previous.
But now today, my battery life is once again bad. I haven't really found the source of the problem, it's not an installed app that drains the battery, and the battery usage shows that 'Media' and 'Android System' drains the most battery, and that the phone stays active when it's sleeping.
I've also noticed that my signal drops frequently, even though I'm in the town.
What can I do?
TLDR; Xperia V, latest 4.1 firmware, unrooted. 'Media' and 'Android System' drain most battery, phone stays active all the time, no GPS, Location, NFC, BT. Tried factory reset. Don't know what to do. Frequent signal drops too.
I'm gonna try a factory reset without the SD-card, I don't even use it.
Here are battery and wakelock screenshots:
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Err, that is normal use.
Your phone is in deep sleep for 49% off the time, that is normal. You have 38% battery after 21 hours use, that is good.
If you keep factory resetting then every time you boot it has to use media scanner again to rebuild its data bases..
My suggestion I'd to leave it for a few days to settle down, then see how it is
Sent from my LT30p using xda premium

gregbradley said:
Err, that is normal use.
Your phone is in deep sleep for 49% off the time, that is normal. You have 38% battery after 21 hours use, that is good.
If you keep factory resetting then every time you boot it has to use media scanner again to rebuild its data bases..
My suggestion I'd to leave it for a few days to settle down, then see how it fired
Sent from my LT30p using xda premium
Click to expand...
Click to collapse
No, it can't be.
Android System and Google Services shouldn't drain 70% of the battery, neither should it keep the phone active 75% of the time, with less than two hours of screen on time. My Nexus 7 has been 'active' 20 minutes, with 5h of screen time and music playback.
I had the problem before, that's why I reset the phone, and now I have it again. I don't think it'll settle down.

You can always ignore my advice if you want.
But your own images show 49% deep sleep and 33% battery left after more than 20 hours use. Trust me this is good and normal, and most users here would bite their right arm off for that
Also, if you keep resetting you are going to drain the battery quicker.
But like I said, you are more than free to ignore this advice and keep resetting your phone.
Sent from my LT30p using xda premium

gregbradley said:
You can always ignore my advice if you want.
But your own images show 49% deep sleep and 33% battery left after more than 20 hours use. Trust me this is good and normal, and most users here would bite their right arm off for that
Also, if you keep resetting you are going to drain the battery quicker.
But like I said, you are more than free to ignore this advice and keep resetting your phone.
Sent from my LT30p using xda premium
Click to expand...
Click to collapse
I'm not ignoring your advice, I'm not resetting, I'm just trying to find an explanation and a solution. Thank you for your answer.