[Q] Crazy Battery Loss on CM9... help? - Samsung Epic 4G Touch

I recently updated my E4GT to CyanogenMod 9 alpha 5 and my battery has been dying insanely fast. I noticed immediate drops in battery % at random times, see attached image.
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I disabled notification lights to see if that would help, but no dice... any help?

Well it's obvious that you're doing it wrong
Sent from my SPH-D710 using Tapatalk 2

Hey let me talk to you for a sec... dont take this the wrong way but are you the only one in the forum that does not know all ICS roms have terrible battery life until we get kernel source.....Bad battery life is notated on like every thread in ICS.
Its ok man just messing with you but yea until kernel source comes out either deal with it or go back to GB... Oh yea and try and polish up on your ICS knowledge for the future

playya said:
Hey let me talk to you for a sec... dont take this the wrong way but are you the only one in the forum that does not know all ICS roms have terrible battery life until we get kernel source.....Bad battery life is notated on like every thread in ICS.
Its ok man just messing with you but yea until kernel source comes out either deal with it or go back to GB... Oh yea and try and polish up on your ICS knowledge for the future
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I dont know about all that I am on CM9 as well and I get the same life maybe a little less than I did on the gingerbread roms. I easily make it through a day with heavy use with battery life to spare. It must be a rouge app.

rbtrucking said:
I dont know about all that I am on CM9 as well and I get the same life maybe a little less than I did on the gingerbread roms. I easily make it through a day with heavy use with battery life to spare. It must be a rouge app.
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Hey if you are making it through the day then what the heck are you complaining about and with heavy use.... Come on man! Get Better Battery Stats and figure it out...
I thought you had real issues...lol

I know about the battery issues, but I have never seen a drop like in the screenshot I posted. I don't know if you looked at it, but I have not read of a reason for this to occur. It drops somewhere around 30% immediately

Sholland91 said:
I know about the battery issues, but I have never seen a drop like in the screenshot I posted. I don't know if you looked at it, but I have not read of a reason for this to occur. It drops somewhere around 30% immediately
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Simple man the kernel sucks life out of your phone when custom kernels start flowing so will your battery life.
Sent from my SPH-D710 using Tapatalk

I solved the problem.
I have three batteries.

Sorry to bring up a dead topic but since these issues are still rampant and there is no "official" fix thread that I know of, I thought I'd post my findings and fixes that I have come acrossed (I take no credit for any of these methods) after taking these steps, my ics battery issues are gone.
Backup anything you don't want to lose.
Do a factory reset from the privacy settings.
Format internal SD AND external SD under storage settings.
Change wifi advanced setting "keep wifi on during sleep" to never.
Turn off display battery percentage under display settings.
That's it! One or more of these methods fixed my issues, I was having next to all of the problems people are having. Including the random massive battery drops mentioned in op.

Also your notification light and battery light could drain as well.
sent from my BAD A$$ Epic touch

Related

Gingerbread improve battery life?

Anyone know if battery life will improve at all with the new gingerbread update coming tomorrow? I'm just curious to see if they helped improve that at all, knowing that alot of people are currently running 2.3 already.
EggosEvo said:
Anyone know if battery life will improve at all with the new gingerbread update coming tomorrow? I'm just curious to see if they helped improve that at all, knowing that alot of people are currently running 2.3 already.
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There probably won't be a big increase in battery life, but what this does mean is that there will be source for GB Sense kernels for the EVO. This is great because then kernel developers can start cooking better kernels that offer more battery savings.
I certainly hope so, but I wouldn't count on a major increase.
-viperboy- said:
There probably won't be a big increase in battery life, but what this does mean is that there will be source for GB Sense kernels for the EVO. This is great because then kernel developers can start cooking better kernels that offer more battery savings.
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That is true my friend.
"oh ya"
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I have an extended life battery on my EVO. It has always allowed me to use the EVO as much as I wanted as long as I charged it nightly. Since I installed Gingerbread, my phone will no longer make it all day. Gingerbread actually made my battery life much worse. I wish I had never installed it.
Well, every update I'm sure has some specific things that optimize the processes the phone runs and the task killers, so there's probably some minor improvements. I doubt you'll notice all that much though . If you're having issues with battery life hit up my sig lol
my moms evo had a problem with battery life. Some how it wasnt charging correctly. A battery pull for a few minutes fixed the issue.
Joey SR said:
my moms evo had a problem with battery life. Some how it wasnt charging correctly. A battery pull for a few minutes fixed the issue.
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Had the same problem it would charge for some time but then stop charging..but its fine now
I've been running GB now for almost a week and I definitely have quite a bit worse batter life.
I installed a rooted gb rom last night and updated all the radios. Runs smoothly but my battery life has significantly gone down. Does anyone know if there is a known display issue with the update? See my screenshot of my battery stats.
Sent from my PC36100 using XDA Premium App
My display totally eats my battery on the new update. Very lame
We're comin from a pure power source.
Retraction to my previoius post in this thread
I found an email with a rather large attachment in my outbox that my phone was continually trying to send. When I deleted the email, my battery life returned to performance that was similar to the performance I had prior to the GB update. I believe the phone was continually trying to send the email and it was swamping my battery.

My battery life is stellar

Not sure what you people are doing wrong but I get great battery life running codename android 1.3 and Franco's nightly. Keep 3g on most of the time and use 4g and wifi at home. This is from yesterday, wish I could've let it fully drain but I had to go to work and swapped the battery. This to me represents real world use, played around on the internets, texted, and made a few calls while at work and used pulse heavily after I got home. Kept 3g on while I slept (why do people put it in airplane mode or turn data off?)
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Stock battery btw.
Sent from my Galaxy Nexus
Yawn.
Sent from my Nexus in Texas.
the only relevant thing would be screen on time
Your screen on time is very low.
Can someone explain to me why we have 50,000 battery threads? I think we get it! Your battery life is great. My battery life is great. Jane's battery life sucks. Jim can't even figure out how to turn on his Galaxy Nexus.
Stop with these threads!!! And you know what, to add insult to injury... My battery life on the stock ROM destroys what you just posted.
Sent from my Galaxy Nexus using xda premium
jonathan3579 said:
Jim can't even figure out how to turn on his Galaxy Nexus.
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I bet his battery life is awesome! Tell him to make a new thread to post his ROM/kernel combo.
Stop with these threads!!!
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Noooo joke. We don't care anymore, people!
martonikaj said:
I bet his battery life is awesome! Tell him to make a new thread to post his ROM/kernel combo.
Noooo joke. We don't care anymore, people!
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Thanks for the laugh man. I needed it. These threads have gotten so out of hand, it's ridiculous. A Mod should just combine all these redundant battery threads into one giant thread so they can all piss in the wind and see whose goes further.
Sent from my Galaxy Nexus using xda premium
My phone is very strange about battery life, in fact sometimes it lasts 26/27 hours and sometimes, with the same usage more or less, it lasts 15/16 hours
That's pretty good, I can barely get mine to last overnight with literally NO USE, BUT SERIOUSLY ANOTHER THREAD?
Ripping tale old chap.
WalkingTaco said:
Not sure what you people are doing wrong
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Your the one doing it wrong, no one cares for another battery thread.

Best ROM/Kernel combo for battery?

Been getting horrible battery on my Sprint GNex. Currently running Paranoid Android with that kernel and still getting **** battery life. What's the best combination that is working for you all? I'm getting around 7~9 now. I used to get a whole day out of my OG Evo.
Sigh another battery thread.
Was this battery over 3G? How long? What was the display time? Need more info bud. Not just help my battery life sucks...
Sent From My Sprint Galaxy Nexus
ROM? No idea. Kernel? Trinity
Not every ROM and Kernel combo is the best for everyone. YOU have to see which work best for YOU and YOUR usage. All these are really "hey let's all post what we're using because it's our favorite and if we're using it it MUST be the best"
joshnichols189 said:
Not every ROM and Kernel combo is the best for everyone. YOU have to see which work best for YOU and YOUR usage. All these are really "hey let's all post what we're using because it's our favorite and if we're using it it MUST be the best"
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This.
Sent from the future.
CM9 SKANK/TRINITY alpha 85~4.7~1344-307=4 hrs or more screen on time and about stands still on standby. I do not allow anything to run in background (manually update when needed) and I only have apps I use on my phone. I have ran this setup for wks. Just updated to today's build.. With this kernel I've had no reboots but if u do try Trinity and have a reboot bump voltage up a hair till it quits. It will. And never have I gotten the screen time I do w Trinity w/ any other kernel. Been through the list. Also this rom, its the most dependable there is in my opinion. Scrolls like no other!! Lots of new options like status bar on bottom..much more!! Still flawless!
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No it isn't "another battery thread" I wanted to see what people were getting. I don't run 3G or wifi really at all unless I'm using them. I know how to use my battery. I also know it matters for each phone. The stuff I have tried isn't giving me the results I think are possible with my phone. Obviously the stuff I am trying hasn't worked. There isn't much more info NEEDED. I asked basically what people were getting and on what combinations. Someone else's combination might do wonders for me. I'll try trinity since many people are suggesting it. I'll run it over PA for now, and see what I'm getting.
http://forum.xda-developers.com/showthread.php?t=1713987
http://forum.xda-developers.com/showthread.php?t=1711390
http://forum.xda-developers.com/showthread.php?t=1706602
http://forum.xda-developers.com/showthread.php?t=1685425
http://forum.xda-developers.com/showthread.php?t=1680952
http://forum.xda-developers.com/showthread.php?t=1673823
http://forum.xda-developers.com/showthread.php?t=1690913
http://forum.xda-developers.com/showthread.php?t=1644772
http://forum.xda-developers.com/showthread.php?t=1620251
http://forum.xda-developers.com/showthread.php?t=1537280
http://forum.xda-developers.com/showthread.php?t=1503775
I could go on.
Then there are the battery threads which......have the exact information you're asking for: "basically what people were getting [for battery life] and on what combinations".
ÜBER™ said:
Sigh another battery thread.
Was this battery over 3G? How long? What was the display time? Need more info bud. Not just help my battery life sucks...
Sent From My Sprint Galaxy Nexus
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mr positivity :silly:
but you are right about needing more information. the more information, the better chance that we can help.
No point in digging through threads when I can find answers here.
I have the gsm gnex and i'm using AOKP build 39 with franco kernel nightly 192 and i constantly get around 3 1/2 to 4 hour screen on time. In my opinion the best combo. Experimenting with different kernels is however fun.
fire & ice said:
I have the gsm gnex and i'm using AOKP build 39 with franco kernel nightly 192 and i constantly get around 3 1/2 to 4 hour screen on time. In my opinion the best combo. Experimenting with different kernels is however fun.
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See, I wish everyone else answered like this. Props to you sir +1
DRatJr said:
No point in digging through threads when I can find answers here.
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Its part of the forum rules...
Search before posting.

Which Rom Offers the Best Battery Life on Jellybean?

I know im going to get flamed on this for making 'another better rom for battery thread' but ive been away for two weeks and i see some new roms are out for jellybean, i am currently rocking AndroidMe Cm10 rom, but would like to try a different rom for better batterylife. (its not the best as is ..) i know you guys are going to say every device varies but chances are what most people are getting better battery life on so will mine... so what would you guys reccomend? i really dont want to revert to TeamGummy 4.0.4 (ICS) but if i cant find a better batterylife
well, a better battery life is mostly up 2 the kernel, screen brightness, wireless and network usage, other settings r just familiar of most roms.
though ice has a better battery life than jb, i think
the GUMMY doos have a good battery life 'cause it's using the imoseyon kernel:good:
Noooooo!!
Sent From My Toro+ via RED Tapatalk
ed116 said:
I know im going to get flamed on this for making 'another better rom for battery thread' but ive been away for two weeks and i see some new roms are out for jellybean, i am currently rocking AndroidMe Cm10 rom, but would like to try a different rom for better batterylife. (its not the best as is ..) i know you guys are going to say every device varies but chances are what most people are getting better battery life on so will mine... so what would you guys reccomend? i really dont want to revert to TeamGummy 4.0.4 (ICS) but if i cant find a better batterylife
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Click to collapse
Not trying to flame you but you answered your own question in the OP. Every device varies along with the way each person uses it. I don't have any technical expertise to fall back on when choosing a ROM so it's mostly a trial-and-error process. Flashing a different ROM or kernel is fairly simple, so just experiment and see which one gives you what you are looking for. I rarely, if ever, got the same performance that other users reported when I had my Evo. And lastly, read what other people are saying about a particular combination. XDA has no shortage of people willing to try out new things and let the rest of the community know how it worked. The last 3 pages of a thread are usually the best place to look and see what kind of success/failure rate is happening.
ed116 said:
I know im going to get flamed on this for making 'another better rom for battery thread'
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why did you make the thread then?
here's the best rom ever! STOCK
well, in the 2 weeks that you were gone, there have been amazing breakthroughs in development! The battery now lasts almost 2 weeks with on avg 17hrs of screen on time!
*sigh* just look at the kernel threads and youll see, its not like there's 70+ kernels
Stock.
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Sent from my Stock AOSP Android 4.1.1 Galaxy Nexus.
Flamefest.
No one can decide for you. No one uses their phone like you.
You need to decide for yourself and put in the work like everyone else
Flash and see.
FNM

Android system % is really high.

I saw a post about this, but I can not find it now.
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The android system % is really high. For reference the screen time is at 2h 58min in that shot.
The post I saw about it mentioned a patch that fixed that in some phones? Just curious if there is something I can do to fix it and improve the battery life further.
This is on jedi xp9 with saber kernel.
What were you doing with the phone in that one hour? If nothing serious you have a battery leak problem. 31% for one hour is just not right. I used to install a calendar widget that causes leak like crazy, even after I un installed it. Had to do a hard reset to fix it.
1hr? The battery was at 1d 11h and some change, but yeah I am prolly going to do a clean install. I'm thinking maybe my titanium backup is goofed up.
Just wasn't sure if there was a system patch that was for that, I thought I had read that somewhere.
Its just the only thing using battery. That's good. Youre getting phenomenal battery life. Trust me. When I posted my last message I didn't see a pic of your time stamp. Do math on total CPU usage of the android system. Also Google backup transport uses a good chunk. Disable that if you don't want it. (When flashing a new rom Google transports your old backup onto your device)
Anyhow here you go. Do the math and see how much battery life to CPU usage I would get verse what you got. If you are never using your phone the is and or system will eventually kill it. Using a larger percentage. It looks like you aren't even using your phone. 36 hours of battery is insane. Also note my screen was on just a little over 3 hours. (At minimal brightness always)
Sent from my GN2 using XDA app.
Spoontain said:
1hr? The battery was at 1d 11h and some change, but yeah I am prolly going to do a clean install. I'm thinking maybe my titanium backup is goofed up.
Just wasn't sure if there was a system patch that was for that, I thought I had read that somewhere.
Click to expand...
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Sorry my bad. But it still doesn't look right to me that your system is burning more battery than the screen.
It seems like your phone was idle for the most part of that battery time. If so, then it's normal to show more android system usage percentage than other things, since there are background processes running. If that's the case, your battery drain is good, especially if you're 4g was on the entire time.
Sent from my GT-N7105 using xda premium
AlonB. said:
It seems like your phone was idle for the most part of that battery time. If so, then it's normal to show more android system usage percentage than other things, since there are background processes running. If that's the case, your battery drain is good, especially if you're 4g was on the entire time.
Sent from my GT-N7105 using xda premium
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Yeah I never turn the 4g off. Guess I was just miss understanding the post.
Yes the phone was idle a lot, normally is on my days off. During my work week im looking at 18-20 hours getting me to 60-40% and me charging it it before bed. Being in reinforced concrete buildings 2 stories underground causing me to the have a poor signal I figured that was pretty decent.
Anyway thank you guys for the information.

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