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I have a couple of questions on my rooted Evo.... I rooted my wifes Evo and my Evo using the newest unrevoked. After rooting I flashed Myns warm 2.2 rom along with kingx kernel# 9... I also flashed the collins ph battery tweak.. The first couple of days we had phenomenal battery life, as well as the phones being fast as hell... My question is now the phones seem to be running at a very high cpu usage percentage I.e. anywhere from 60-99% cpu usage.. Is this normal?? The battery life is also terrible now, and I haven't changed anything since flashing the rom and kernel. I was using set cpu and after doing some research I found out that set cpu interferes with the battery tweak so I uninstalled.... What should the normal cpu percentage be at?? Any help would be greatly appreciated!!
Thank you in advance!!
Sent from my Evo using XDA App
extreme27 said:
I have a couple of questions on my rooted Evo.... I rooted my wifes Evo and my Evo using the newest unrevoked. After rooting I flashed Myns warm 2.2 rom along with kingx kernel# 9... I also flashed the collins ph battery tweak.. The first couple of days we had phenomenal battery life, as well as the phones being fast as hell... My question is now the phones seem to be running at a very high cpu usage percentage I.e. anywhere from 60-99% cpu usage.. Is this normal?? The battery life is also terrible now, and I haven't changed anything since flashing the rom and kernel. I was using set cpu and after doing some research I found out that set cpu interferes with the battery tweak so I uninstalled.... What should the normal cpu percentage be at?? Any help would be greatly appreciated!!
Thank you in advance!!
Sent from my Evo using XDA App
Click to expand...
Click to collapse
use a task killer such as "advanced task killer" to kill unwanted apps that run in the background. also, i have setcpu set to over 1GHZ max and 576MHz minimun and honestly, i cannot tell if it makes a difference in battery life, alot of these things you will have to find out for your own because each phone is a little bit different for each user...
there are a few things that can cause this. it is likely one of the apps you have installed is staying on or you have a run away process. The sue of task killers is debated as being a good idea or not i will let you make your own choice on that but i will say the task killer wont fix the problem it will just try to cover it up.
The problem is that the true fix will probably take some time and find and correct. If it is and app one tool that may help is the paid version of system panel. it will help monitor which apps use the most cpu/battery time and it shows you all running apps. you can also use system panel to kill your apps manually (by pressing the kill all button or killing each individually). I have used it help trouble shoot and monitor my battery etc and it has been helpful to me however i will say it doesnt always provide enough information to help you figure out what app is causing the problem when that happens i usually assume its a system process causing the issue.
as for normal it i going to very greatly depending on the apps you have running. when just sitting here watching it mine is normally 8-15% and occasionally goes as high as 20.
Thank you guys... that system panel is awesome!!
Sent from my PC36100 using XDA App
I am a newbie on rooted phones. Just rooted the phone to CM7.0.3 Stable and found out that we have a setting to change the Govenors, currently set using SMARTASS with 245/729.
One question, is it nessesary to install apps such as Setcpu to overclock? or it is just adequet to use the setting in CM7 ? Will both conflict each other? Many thanks
Its useful I think, because you can setup CPU speeds for certain things, such as when your screen is off or when the battery drops below a certain threshold.
Sent from my HTC Wildfire using xda premium
depends on you need dude. playing games/ watching videos/ hearing music/ simple phone usage/ battery conservation etc. stock one dont have profiles. but 3rd party like set cpu have it. so that it auto switches profiles according to ur present phone status.
Sent from my HTC Wildfire using XDA App
SetCPU is much more useful than the cyanogenmod CPU functions, I did use the cyanogenmod one but I didn't see any changes
Sent by fire!
yes, the good things are the profiles! but I'm not sure if underclocking the processor really saves battery since i've heard that its just a saying/placebo
cedriccc said:
yes, the good things are the profiles! but I'm not sure if underclocking the processor really saves battery since i've heard that its just a saying/placebo
Click to expand...
Click to collapse
Yeah I think your right, strangely enough I think it's the same with overclocking, I put mine up to 700ish MHz and the battery still lasts just as long, I expected a reduction in battery life!
Sent by fire!
I'm down to 25% after only nine hours and I don't understand why.. Lol I'm confused for real I thought rooting would improve it. And I've only actually used the phone for probably 50 minutes. Any help or suggestions
Sent from my Dinc running cm7 with incredikernel
search around for suggestions. to start off control data usage,sync control,use auto brightness,turn toggles off you don't need uninstall or freeze apps especially those that run in background for no reason that fail to cache. use a different kernel. do some undervolting. overclock and underclock when necessary.use tasker to setup screen off/on profiles for different min/max frequency ranges and governor selection,use apps to monitor usage such as drain guard and cpu spy. check apps that hog too much unwanted usage. the list goes on. if you do your research you could save yourself 70% of battery usage. using tasker alone saved me around 30%. for example my phone is fully charged before bed,I sleep about 6-8 hours while listening to music and I have about 80% once I'm awake.nothing on besides the phone's cellular radio,no gps,no data on,no 3g,no wifi,etc. not even airplane mode so sms isn't queued all night. tasker can also auto turn off gps once gps based apps are killed so it's not always on,plenty of threads on battery saving tips,majority aren't all device specific so they're universal tips
wayneb02 said:
I'm down to 25% after only nine hours and I don't understand why.. Lol I'm confused for real I thought rooting would improve it. And I've only actually used the phone for probably 50 minutes. Any help or suggestions
Sent from my Dinc running cm7 with incredikernel
Click to expand...
Click to collapse
Rooting by itself won't do anything for battery life.
douger1957 said:
Rooting by itself won't do anything for battery life.
Click to expand...
Click to collapse
I thought the kernel helped it. But Never mind on this post, I didn't realize that a friend downloaded a couple of apps that were running constantly in the background.
Sent from my Dinc running cm7 with incredikernel
wayneb02 said:
I thought the kernel helped it. But Never mind on this post, I didn't realize that a friend downloaded a couple of apps that were running constantly in the background.
Sent from my Dinc running cm7 with incredikernel
Click to expand...
Click to collapse
agreed rooting won't do anything for your phone unless you put it to good use (uninstalling bloat apps, loading a custom more battery and performance efficient kernel, same with a better ROM, as well as countless performance/battery mods)
There are so many ways to improve performance and battery life on your phone with root, but you have to actually apply them to your phone.
POQbum said:
agreed rooting won't do anything for your phone unless you put it to good use (uninstalling bloat apps, loading a custom more battery and performance efficient kernel, same with a better ROM, as well as countless performance/battery mods)
There are so many ways to improve performance and battery life on your phone with root, but you have to actually apply them to your phone.
Click to expand...
Click to collapse
What do you mean battery mods? I'm new to all of this in case you can't tell lol
Sent from my Dinc running cm7 with incredikernel
wayneb02 said:
What do you mean battery mods? I'm new to all of this in case you can't tell lol
Sent from my Dinc running cm7 with incredikernel
Click to expand...
Click to collapse
well I probably worded that wrong. There's mods you can do that will improve battery performance.
Check here and scroll down to the bottom where it shows performance mods:
http://forum.xda-developers.com/showthread.php?t=969371
As a personal suggestion.
ROM: CM7 latest nightly
after you flash the ROM, flash the latest Gingerbread [AOSP] kernel:
http://www.incredikernel.com/?page_id=10
2.6.38.8 incredikernel 10/08/2011 (3277)
Then apply:
Adrenaline Shotv12.zip - found on
http://forum.xda-developers.com/showthread.php?t=1236779
Convert2Ext4_no_data_limit_dalvik_moved.zip - found on
http://forum.xda-developers.com/showthread.php?t=1315372
Then proceed to uninstall the crap apps you don't want.
Then customize the mutha lovin hell out of your phone with these apps:
Widget Locker
Launcher Pro Plus -or- Go Launcher
And use Android Kitchen to finish the sexification of your phone:
http://uot.dakra.lt/
You'll end up with an amazing phone that you'll cherish forever <3
POQbum said:
well I probably worded that wrong. There's mods you can do that will improve battery performance.
Check here and scroll down to the bottom where it shows performance mods:
http://forum.xda-developers.com/showthread.php?t=969371
As a personal suggestion.
ROM: CM7 latest nightly
after you flash the ROM, flash the latest Gingerbread [AOSP] kernel:
http://www.incredikernel.com/?page_id=10
2.6.38.8 incredikernel 10/08/2011 (3277)
Then apply:
Adrenaline Shotv12.zip - found on
http://forum.xda-developers.com/showthread.php?t=1236779
Convert2Ext4_no_data_limit_dalvik_moved.zip - found on
http://forum.xda-developers.com/showthread.php?t=1315372
Then proceed to uninstall the crap apps you don't want.
Then customize the mutha lovin hell out of your phone with these apps:
Widget Locker
Launcher Pro Plus -or- Go Launcher
And use Android Kitchen to finish the sexification of your phone:
http://uot.dakra.lt/
You'll end up with an amazing phone that you'll cherish forever <3
Click to expand...
Click to collapse
All of this.
-My life is a shooting range, people never change-
Thanks a lot, guess I'm gonna have a fun playing with my phone tonight lol.
Sent from my Dinc running cm7 with incredikernel
before i flash adrenaline am i supposed to wipe anything?
Rooting doesn't improve battery life. usually a custom kernel or rom will improve battery life. It all depends what you are running in the background. With Nil's Gingersense 3.5 (2.2) and tiny's latest kernel I am getting unbelievable battery life. This is in part to how well both of these things work together along with the removal of all the bloatware. I have found that if you run Yahoo IM, it tends to kill your battery faster as well. Make sure to set most of your sync options to manual or every few hours as well. It won't impact your gmail or gtalk settings.
I understood that just rooting wouldn't change a thing. I just miss worded it lol. I was already running cm7 and incredikernel. I just hadn't realized I had 2 apps running in the background killing my battery
just flashed tinys last night and waiting to see how it works. I have two batteries and one lasts much better than the other and they have both been treated the same as far as charging and discharging....
ive tryed everything. android system is always higher than screen no matter what i flash, ics or jb. this is just getting annoying how it drops 1% every 2 minutes, when using it with data. i really like this phone but this is just killing it for me. i attached some pics of the battery and the kernel wakes. any help would be great.
thanks
WOW, that is crazy. I can only suggest Wicked V7 updated to the latest official ICS. Do a full wipe of everything and install. I have been running for 2 days and have great battery.
Good luck bro
idk what it can be I've been switching roms and ics or not android system is always higher than screen . Could it be an app or a file that's causing this?
Sent from my SGH-T999 using xda app-developers app
There is an app in the playstore I think it is called cpuspy that tells you what rogue app is running in the back ground. You can also try the process of elimination.
saldebot said:
There is an app in the playstore I think it is called cpuspy that tells you what rogue app is running in the back ground. You can also try the process of elimination.
Click to expand...
Click to collapse
Nope cpu spy shows how much time the phone is in different mhz.. like if you turn off your screen it will go into deepsleep and when you open the app it indicates how much time the phone has spent into deep sleep...
And OP maybe its a bad battery if you have tried ics roms and jb ?
Sent from my SGH-T999 using xda premium
shahkam said:
Nope cpu spy shows how much time the phone is in different mhz.. like if you turn off your screen it will go into deepsleep and when you open the app it indicates how much time the phone has spent into deep sleep...
And OP maybe its a bad battery if you have tried ics roms and jb ?
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
I stand corrected, thank you sir.
Sent from my SGH-T999 using Tapatalk 2
Well, what do you guys think of this? I'm new to the S3 not familiar with the ROMS. What's the best ROM out there for us with good battery life and performance?
I really like the CodenameAndroid and ParanoidAndroid roms in combination with Ktoonz kernel, I get around 2 days of battery with moderate usage and over 6 hours screen time, which IMO is great for the US S3
Androiduser96 said:
Well, what do you guys think of this? I'm new to the S3 not familiar with the ROMS. What's the best ROM out there for us with good battery life and performance?
Click to expand...
Click to collapse
holy sh*t the android system is raping your battery, well I love wicked roms(ICS) awesome battery and super smooth. You can also check out FrostyICS and FrostyJB those are also really good ROM's. I personally like ICS ROM's as they are more stable and don't have minor issues that some the JB ROM's have.
Check out post #3112 and #3113 in the WickedV7 thread and check out the battery life pic people posted on that ROM.
GO to the Play store and download no-frills CPU control or set cpu and check and see what you Min and max is for your CPU.
I have an extended battery and after 4 hours i was at 65 or 70% which is way off!!! I check this and it showed that my min and max was at 1024 once I changed the min to 384 everything got better
saldebot said:
holy sh*t the android system is raping your battery, well I love wicked roms(ICS) awesome battery and super smooth. You can also check out FrostyICS and FrostyJB those are also really good ROM's. I personally like ICS ROM's as they are more stable and don't have minor issues that some the JB ROM's have.
Check out post #3112 and #3113 in the WickedV7 thread and check out the battery life pic people posted on that ROM.
Click to expand...
Click to collapse
I tried latest frosty ics and still bad
Sent from my SGH-T999 using xda app-developers app
You doing a full wipe between? I'd do that if not and trying only installing necessary apps and check overnight or after a day if system is still killing you
Sent from my SGH-T999 using xda app-developers app
yeah full wipe I did some cleaning up erased some files and apps and the android system is now 12% and screen is 56% but I still have a lot of wake of ks
Sent from my SGH-T999 using xda app-developers app
When it comes to battery life, there are many thing that you can do to improve it.
First off, turn autobrightness off, and try and keep the brightness slider as low as comfortably possible.
Dark, if not completely black background are not only sick looking, but they help with your battery life.
Less widgets, especially ones that require frequent updates...like weather widgets, and facebook widgets will wake
your system up to update. I suggest removing most, if not all of your widgets from your home screens.
Download an app like setcpu, nstools, or voltage control to set your min and max frequencies. In setcpu, make some profiles for screen off to
make sure your system isn't throttling up while your phone is not in use.
Change your governor and i/o schedulers. With a high end device like this, you can comfortably sit on conservative governor without experiencing bad lag...i/o schedulars wont effect battery life too too much but simple ones are best (like sio).
Run v6 super charger, kickass kernalizer, and 3 script to improve the way your device runs, and battery life. Stick to wifi when possible. Having low signal will cause your phone to constantly look for a better signal which will prevent it from deep sleeping.
Use titanium backup to freeze unnecessary processes, such as DRM protected content.
Download one powerguard to help also.
Good luck!
Xenoism said:
When it comes to battery life, there are many thing that you can do to improve it.
First off, turn autobrightness off, and try and keep the brightness slider as low as comfortably possible.
Dark, if not completely black background are not only sick looking, but they help with your battery life.
Less widgets, especially ones that require frequent updates...like weather widgets, and facebook widgets will wake
your system up to update. I suggest removing most, if not all of your widgets from your home screens.
Download an app like setcpu, nstools, or voltage control to set your min and max frequencies. In setcpu, make some profiles for screen off to
make sure your system isn't throttling up while your phone is not in use.
Change your governor and i/o schedulers. With a high end device like this, you can comfortably sit on conservative governor without experiencing bad lag...i/o schedulars wont effect battery life too too much but simple ones are best (like sio).
Run v6 super charger, kickass kernalizer, and 3 script to improve the way your device runs, and battery life. Stick to wifi when possible. Having low signal will cause your phone to constantly look for a better signal which will prevent it from deep sleeping.
Use titanium backup to freeze unnecessary processes, such as DRM protected content.
Download one powerguard to help also.
Good luck!
Click to expand...
Click to collapse
Woaahh android system is at 52% now and screen 18%
Sent from my SGH-T999 using xda app-developers app
Jaimesco12 said:
Woaahh android system is at 52% now and screen 18%
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
This was mentioned in another thread. DL this app: https://play.google.com/store/apps/details?id=com.eugene373.cpu.sleep
It shuts down one of your cores when the phone isn't in use.
Also DL CPUspy. This will show you exactly how often your phone is using certain frequencies, and whether or not it's going into deep sleep.
It looks from your screenshot however that your standby battery is not the problem, it seems to shoot down when in use (at least I'm assuming that was from when you were using the device).
Click on "System" and take a screenshot so we can see what's going on
Sent from my SGH-T999 using xda app-developers app
Error is the first thing listed. Have you tested the battery by doing a full reset and flash, then not installing any apps? If this is happening across roms and builds its most likely one of your apps not playing well with the system.
Before your next flash, go into dev options and turn on Show CPU Usage. Then let us know what processes seem to stay at the top all the time.
Also get cpu spy from the market and after letting it collect its data for a while (especially when not using the phone) check it to make sure its going into deep sleep.
After those two, do your clean flash and run without installing any apps for a while. Then when you do install them, do not restore from a backup. Download them fresh from the market. Also do not restore any backed up data, at least at first.
When you do flash your system, download the full firmware to your computer (use root66 if you want to keep root). From recovery choose format data, this will wipe your internal sdcard, btw.
Now boot into download mode and using Odin, flash the firmware you just downloaded.
Once done charge back to 100% and see how it goes.
You can get the firmware from my stickied thread in development.
http://forum.xda-developers.com/showthread.php?t=1949687
Good luck!
Sent from my SGH-T999 using xda app-developers app
I'm a little afraid to use odin and I always restore app + data from titanium backup after fresh flash lol
Sent from my SGH-T999 using xda app-developers app
Jaimesco12 said:
I'm a little afraid to use odin and I always restore app + data from titanium backup after fresh flash lol
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
As long as you follow instructions, and make sure you have the correct fw for your model, Odin is actually quite easy to use.
Restoring apps and especially data can cause all kinds of issues when jumping between different builds and especially android versions. The updated apos and system often have different database structures, different data files, and even different storage locations sometimes.
I'm betting this is where the problem will be.
I understand not wanting to go through all that I mentioned, but if you want to know where the problem originates, you have to start removing variables to narrow it down.
If you don't care what's causing it, jump to the flash. Nandroid backup, wipe everything, odin flash, test. If all is well, restore the data part of nandroid. If problems start again then you know its either your apps or data causing the problem.
Odin instructions are in TheExels thread stickied in this section.
Sent from my SGH-T999 using xda app-developers app
I have upgraded my Galaxy W to Jelly Bean using Custom Room (4.2.2) Cyanogenmod 10.1 alpha 2. maybe later alpha 3.
Everything runs well. but why my phone's battery drains so fast? and please help me HOW TO SOLVE IT AND MAKE IT LAST LONG TIME???
THANKS VERY MUCH....
Backup your apps, factory reset your phone. If battery drain problem persists, install Greenify or deep Sleep battery saver from Google Play to better manage battery resources.
Lim Wee Huat said:
Backup your apps, factory reset your phone. If battery drain problem persists, install Greenify or deep Sleep battery saver from Google Play to better manage battery resources.
Click to expand...
Click to collapse
Thank you for your suggestion... I will try....
Electro Tobib Muhajir said:
Thank you for your suggestion... I will try....
Click to expand...
Click to collapse
when you just flashed the battery will definitely be shorter. Let it recharge for a few cycles before determining whether its good or bad battery life. Keep in mind however that even at full potential, the battery will not last for more than 2 days even at light usage.
if battery life is more important to you compared to "the newest OS" and whatever extra features it brings with it, then I highly recommend installing acro's CM9 RC2 (yes it is ICS) as the 2.x.x kernel is far better at battery life than 3.x.x (i'm currently testing it and I can already feel the difference! I believe I can reach 2.5 days at modest usage but I will have to update you on that after my first few discharge cycle for battery to reach potential after flashing new rom). I do, however notice a few annoyances with RC2 (not sure if its really the ROM, or the custom kernel i'm using, or Nova Launcher is to be blamed), so if it continues to bug me I may just switch back out to latest ICS =p.
If keeping with the latest JB is important for u, best thing you could do is download a custom kernel for it that supports UV(undervolting), then get IncrediControl and tune down your UV based on some voltage tables you can find in FAQ. This alone won't bring you a HUGE improvement in battery life but its definitely an observable difference. On top of UV, try to UC(underclock) your CPU to 1GHz. Most daily functions, apps and games (depending on how intensive it is) will work perfectly smooth even at 1GHz. IMO, the most important point of UCing is you will notice a very significant difference in the heat of your battery (ie backcover of your phone). Heat is generally bad for the battery (shorter life + faster draining) so UC is definitely a good thing to do =). Of course, on top of all those, get greenify and wakelock detector(WLD) from market to control your not-so-frequently-used apps. Use WLD to track down what is keeping your phone awake (hence drain more battery) and use greenify to hibernate all the not-so-frequently-used apps you have (example of things you DON'T want to greenify: whatsapp and gmail as you don't want to kill these 2 programs when you lock your screen. You want to continue receiving whatsapp messages and gmail when you locked your screen right? XD! Examples of things you SHOULD greenify: games, music player. Maybe some of the games or other apps may keep a background service active, secretly using your battery even though the last time you used it was 2 days ago!)
Finally, if your wonder is about 1-1.5 years old, chances are your battery is already bloated (perhaps you can feel your battery through the backcover of your phone even!) A bloated battery is a dangerous and short-capacity battery. Even with the best rom you may only push through a day from 100-0%. If your battery still looks fine but your phone is nearing its birthday, go ahead and do some online shopping (ebay or local equivalent, like malaysia we have Lelong.com.my) and get a battery for your phone. Its usually much cheaper than buying from telephone shops.
EDIT: Adding on to all of that, choosing a good governor+i/o scheduler combo is important as well. If our phone is similar with the S+, smartassv2+sio(i've used this, its quite smooth and battery is good) OR OnDemand+noop is thought to be very good in terms of battery life and responsiveness. Lulzactive is also very good but its not so easy to tune it so i usually would stay away from it. Do bear in mind that although the former 2 combo is good, it still highly depends on how you use your phone so there will not be a universally best governor+io combo. Both of those suggested by me are supposingly best in responsiveness as well as deepsleep battery conserving (only if the assumption that our roms work the same as the roms tested in S+, which MAY NOT be true).
TL;DR? try smartassv2+sio (u may change this using IncrediControl, get from playstore). Then if you are not satisfied with your current performance/battery life, you may continue experimenting by changing governor and i/o scheduler one at a time. If you are doing the testing, make sure to have some way to record your tests if not you will 100% be deceived by placebo!(with actual numbers you will clearly see whether your feeling is placebo or if there really is an improvement)
I'm having some seeeeerious battery issues with alpha3. With just 15 minutes screen usage in a day, battery settings says my screen used up more than 20% of the battery! This just for consulting the time and the weather.
oribunokiyuusou said:
I'm having some seeeeerious battery issues with alpha3. With just 15 minutes screen usage in a day, battery settings says my screen used up more than 20% of the battery! This just for consulting the time and the weather.
Click to expand...
Click to collapse
Sounds like your battery is bloated. Can u show me a screenshot of your battery graph and app usage?
oribunokiyuusou said:
I'm having some seeeeerious battery issues with alpha3. With just 15 minutes screen usage in a day, battery settings says my screen used up more than 20% of the battery! This just for consulting the time and the weather.
Click to expand...
Click to collapse
that 20% is not actually the 20% of the battery juice. It is 20% of whatever amount of battery is drained due to the display being ON. Like if your battery is used from 100% to 90%, then only 2% is used by the display.
I am not sure if I could explain what I mean.
EDIT: Hmmm maybe I misunderstood what you said... If that is the case, disregard.
And also my galaxy W will use all of its battery charge when the display is constantly ON for about 3-5 hours.
Actually, I've figured out what it was. It was Google Now. Chewing away at the battery without saying a word anywhere in the battery screen. I am now back to my old 3 days battery.
you need to install cpu spay from google play and you need look deep sleep time.
this reaction is typical if your coming from a stock or at least cm9.
there has been a lot of arguments about battery life of cm10 and above.
in my opinion, there really is a difference, i mean cm10+ drains battery faster.
and the reason being is of course the features there is in cm10++.
if you're after battery life, stay with stock or cm9 (for now).
but if you feel like your in with cm10+ and you don't want to go back like me, then may want to try these tricks:
1) using Titanium Backup, freeze the apps that you don't really use.
- in my phone i froze pico tts, voice search, talk back, etc. (i even froze google search )
2) i use an app called "autostarts", it can disable auto starting of app including those of the system.
- in my phone, i disabled google maps in every activity. ex. after startup, connectivity changed, wifi connected, widget updating
3) disable system settings which also contribute to battery draining.
- disable location service when your not using it
- disable automatic backup/restore
- disable haptic feedback
- disable autosync
- disable the top battery drainers when not in use (wifi, mobile data, gps, bluetooth)
- and many more just explore
4) do not use so many widgets (my home screen has 0 widget)
5) do not use live wallpaper
6) charge only using the original charger, not from other phone/brand, not from a usb port
- the best way to charge is to avoid using the phone until it's fully charged
7) finally, install only apps that you really need. just keep a backup of your not so often used apps and install only when you need them
If you think about it, everything i wrote above contradicts with the original concept of Android.
But that's life, sometimes you have to trade something in order to achieve another.
Our phone was baked as Gingerbread, now we want to make it taste like Jellybean.
We have all the ingredients, but we don't have a jelly bean pan to make the candy molds.
So we improvise, we work around, we do some shortcuts, we make alternatives, certainly it will cost something.
egagah said:
when you just flashed the battery will definitely be shorter. Let it recharge for a few cycles before determining whether its good or bad battery life. Keep in mind however that even at full potential, the battery will not last for more than 2 days even at light usage.
if battery life is more important to you compared to "the newest OS" and whatever extra features it brings with it, then I highly recommend installing acro's CM9 RC2 (yes it is ICS) as the 2.x.x kernel is far better at battery life than 3.x.x (i'm currently testing it and I can already feel the difference! I believe I can reach 2.5 days at modest usage but I will have to update you on that after my first few discharge cycle for battery to reach potential after flashing new rom). I do, however notice a few annoyances with RC2 (not sure if its really the ROM, or the custom kernel i'm using, or Nova Launcher is to be blamed), so if it continues to bug me I may just switch back out to latest ICS =p.
If keeping with the latest JB is important for u, best thing you could do is download a custom kernel for it that supports UV(undervolting), then get IncrediControl and tune down your UV based on some voltage tables you can find in FAQ. This alone won't bring you a HUGE improvement in battery life but its definitely an observable difference. On top of UV, try to UC(underclock) your CPU to 1GHz. Most daily functions, apps and games (depending on how intensive it is) will work perfectly smooth even at 1GHz. IMO, the most important point of UCing is you will notice a very significant difference in the heat of your battery (ie backcover of your phone). Heat is generally bad for the battery (shorter life + faster draining) so UC is definitely a good thing to do =). Of course, on top of all those, get greenify and wakelock detector(WLD) from market to control your not-so-frequently-used apps. Use WLD to track down what is keeping your phone awake (hence drain more battery) and use greenify to hibernate all the not-so-frequently-used apps you have (example of things you DON'T want to greenify: whatsapp and gmail as you don't want to kill these 2 programs when you lock your screen. You want to continue receiving whatsapp messages and gmail when you locked your screen right? XD! Examples of things you SHOULD greenify: games, music player. Maybe some of the games or other apps may keep a background service active, secretly using your battery even though the last time you used it was 2 days ago!)
Finally, if your wonder is about 1-1.5 years old, chances are your battery is already bloated (perhaps you can feel your battery through the backcover of your phone even!) A bloated battery is a dangerous and short-capacity battery. Even with the best rom you may only push through a day from 100-0%. If your battery still looks fine but your phone is nearing its birthday, go ahead and do some online shopping (ebay or local equivalent, like malaysia we have Lelong.com.my) and get a battery for your phone. Its usually much cheaper than buying from telephone shops.
EDIT: Adding on to all of that, choosing a good governor+i/o scheduler combo is important as well. If our phone is similar with the S+, smartassv2+sio(i've used this, its quite smooth and battery is good) OR OnDemand+noop is thought to be very good in terms of battery life and responsiveness. Lulzactive is also very good but its not so easy to tune it so i usually would stay away from it. Do bear in mind that although the former 2 combo is good, it still highly depends on how you use your phone so there will not be a universally best governor+io combo. Both of those suggested by me are supposingly best in responsiveness as well as deepsleep battery conserving (only if the assumption that our roms work the same as the roms tested in S+, which MAY NOT be true).
TL;DR? try smartassv2+sio (u may change this using IncrediControl, get from playstore). Then if you are not satisfied with your current performance/battery life, you may continue experimenting by changing governor and i/o scheduler one at a time. If you are doing the testing, make sure to have some way to record your tests if not you will 100% be deceived by placebo!(with actual numbers you will clearly see whether your feeling is placebo or if there really is an improvement)
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thanks a lot. that's very helpful for me..
klacenas said:
this reaction is typical if your coming from a stock or at least cm9.
there has been a lot of arguments about battery life of cm10 and above.
in my opinion, there really is a difference, i mean cm10+ drains battery faster.
and the reason being is of course the features there is in cm10++.
if you're after battery life, stay with stock or cm9 (for now).
but if you feel like your in with cm10+ and you don't want to go back like me, then may want to try these tricks:
1) using Titanium Backup, freeze the apps that you don't really use.
- in my phone i froze pico tts, voice search, talk back, etc. (i even froze google search )
2) i use an app called "autostarts", it can disable auto starting of app including those of the system.
- in my phone, i disabled google maps in every activity. ex. after startup, connectivity changed, wifi connected, widget updating
3) disable system settings which also contribute to battery draining.
- disable location service when your not using it
- disable automatic backup/restore
- disable haptic feedback
- disable autosync
- disable the top battery drainers when not in use (wifi, mobile data, gps, bluetooth)
- and many more just explore
4) do not use so many widgets (my home screen has 0 widget)
5) do not use live wallpaper
6) charge only using the original charger, not from other phone/brand, not from a usb port
- the best way to charge is to avoid using the phone until it's fully charged
7) finally, install only apps that you really need. just keep a backup of your not so often used apps and install only when you need them
If you think about it, everything i wrote above contradicts with the original concept of Android.
But that's life, sometimes you have to trade something in order to achieve another.
Our phone was baked as Gingerbread, now we want to make it taste like Jellybean.
We have all the ingredients, but we don't have a jelly bean pan to make the candy molds.
So we improvise, we work around, we do some shortcuts, we make alternatives, certainly it will cost something.
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yups...nice suggestion... thanks very much...:good::good::good:
Lim Wee Huat said:
Backup your apps, factory reset your phone. If battery drain problem persists, install Greenify or deep Sleep battery saver from Google Play to better manage battery resources.
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THANKS...
oribunokiyuusou said:
I'm having some seeeeerious battery issues with alpha3. With just 15 minutes screen usage in a day, battery settings says my screen used up more than 20% of the battery! This just for consulting the time and the weather.
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me too.... more than 20%, whereas my battery is in sleep screen and in the lowest brightness
Me too
Sent from my GT-I8150 using xda app-developers app
smeone here is right about cm9 rc2 i just flashed it and used a while.. battery seems to be 2x longer than 4.4 kitkat
here is there link
http://mygalaxywonder.blogspot.sg/2012/09/cyanogenmod-9-cm9-alpha-build-8-for.html
Magpir said:
smeone here is right about cm9 rc2 i just flashed it and used a while.. battery seems to be 2x longer than 4.4 kitkat
here is there link
http://mygalaxywonder.blogspot.sg/2012/09/cyanogenmod-9-cm9-alpha-build-8-for.html
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No....no....no....
That link will redirect you to a website that has kanged Arco's hard work and NOT given due credit....
Here is the correct, original link....
http://forum.xda-developers.com/showthread.php?t=1576874
........right here on XDA...
This might be my S2, or it might be my W...but it's definitely CM