Develop Bugs

[SHARE] Battery Saving Techniques!

NOTE: Im turning this into a sharing thread where everybody can post and share their techniques on how they save battery consumption. I'll quote all the useful suggestions here in the first post
I would like to start off by saying that all ROMs basically consume badly just like the stock version. There could be little to no differences between them with regards to battery performance. Right now I would like to share my observation, on what I presume to be one of the best ways to save battery while maintaining good performance.
glennlevi's Technique:
1. Get Antutu Battery Saver Pro (Free version can be found in the market). Install and untick the option control cpu speed.
2. Using No Frills CPU, or any other built-in cpu settings app, select your default governor (bcm####) and sio as your I/O scheduler. Maximum Frequency should be your highest available, and Minimum Frequency your lowest available.
3. Manually adjust screen brightness in settings to about 20%.
4. Untick Background Data and Auto Sync in settings, under Accounts and Sync Settings.
5. Get Ram Booster (Free in market) and install. Open. Under settings, set Boost Level to aggresive, set whitelist apps and tick your launcher, sms app, keyboard, and Ram Booster and Antutu Battery Saver. Untick Show Overlay Widget in Overlay Widget Settings. Enable the widget in the notification bar, refresh every 5s, Report Style Dont Show. Under Advanced Settings, set Feedback to None. Clean Ram using this app everytime just before you turn off your screen or want to stop using your phone.
6. Drag down your notification bar and tap the Ram Booster Notification. Now wait a couple of mins while browsing through your phone (without opening any apps)
*You can use other task killers if you want, but Ram Booster is the best IMO. A better replacement however is 360 launcher's cleaner widget (which will save more memory, ram and battery usage since its all in one app)
7. Open settings and go to Applications>Running Processes and look at all running apps, you will see some auto-start apps like Beats Audio, DSP Manager, Google Mail, Google Maps, Google Playstore and others. Uninstall all user apps that have autostarted. Download Titanium Backup and use it to uninstall stock bloatware, like google maps and google mail, or other custom bloatware like Beats Audio (If you dont use them at all). Clean Dalvik Cache using Titanium Backup and Clean Cache using Ram Booster. Freeze seldom used apps like Google Playstore. Just unfreeze when you want to use them.
*You can use other apps like Root Uninstaller to remove system apps, but IMO Titanium Backup is the easiest to use and has one of the most functions.
Click to expand...
Click to collapse
Imacatlover's tips:
Imacatlover said:
The best way to save battery is really to know your fone.
1. any type of widget should be avoided( except maybe clock) as they are juice hoggers.
2. ANY app that suggest or implies that they save battery defeats their own purpose for they themselves consume battery life...figures.
3. ANY app that has "killer" attached to it isn't really helpful because most of the app be it user or system just restarts after. Same goes for anything with "booster"..
4. Ram cleaner should suffice
5. keep most settings to a minimum.
6. Accept the fact that our little fone has one crappy battery construction..
Click to expand...
Click to collapse
irfanbagus' tips
irfanbagus said:
i do. well, not full kernel, just kernel module. search bacem-tweak in dev section. but i find that the best thing you can do to save battery is keep your phone sleep as long as possible. that's means remove bloatware, limit installed app with service, and only turn data/wifi when needed. combine with undervoltage, usually i got 3-4 days in single charge. in some very rare condition i got 6-7 days.
Click to expand...
Click to collapse
There you go! Have a blazing fast and battery healthy SGY!

i'll try that as soon as i can

OxygeenHD said:
i'll try that as soon as i can
Click to expand...
Click to collapse
Just to be clear, using Titanium Backup and changing CPU settings requires a rooted phone
Well, most custom roms are rooted anyways. Im just saying this cuz you might be running on stock rom

Nice tutorial :good: :good: :good:

Good one thanks mate xD

I'd like to confirm a few things. some of info on this thread is never heard.
glennlevi said:
2. Using No Frills CPU, or any other built-in cpu settings app, select your default governor (bcm####) and sio as your I/O scheduler. Maximum Frequency should be your highest available, and Minimum Frequency your lowest available.
Click to expand...
Click to collapse
bcm work almost like performance gov. are sure about it?
5. Get Ram Booster (Free in market) and install. Open. Under settings, set Boost Level to aggresive, set whitelist apps and tick your launcher, sms app, keyboard, and Ram Booster and Antutu Battery Saver. Untick Show Overlay Widget in Overlay Widget Settings. Enable the widget in the notification bar, refresh every 5s, Report Style Dont Show. Under Advanced Settings, set Feedback to None. Clean Ram using this app everytime just before you turn off your screen or want to stop using your phone.
Click to expand...
Click to collapse
is this information have been confirmed? as far as I know fewer widget is low ram consuming and more battery friendly. notification will prevent your device sleep. notification for every 5 second?it will make your battery life decreased, a lot. on other hand, clean ram have been proved consume huge battery power.
6. Drag down your notification bar and tap the Ram Booster Notification. Now wait a couple of mins while browsing through your phone (without opening any apps)
*You can use other task killers if you want, but Ram Booster is the best IMO. A better replacement however is 360 launcher's cleaner widget (which will save more memory, ram and battery usage since its all in one app)
Click to expand...
Click to collapse
why should I use it when android have it's own task killer.?
7. Open settings and go to Applications>Running Processes and look at all running apps, you will see some auto-start apps like Beats Audio, DSP Manager, Google Mail, Google Maps, Google Playstore and others. Uninstall all user apps that have autostarted. Download Titanium Backup and use it to uninstall stock bloatware, like google maps and google mail, or other custom bloatware like Beats Audio (If you dont use them at all). Clean Dalvik Cache using Titanium Backup and Clean Cache using Ram Booster. Freeze seldom used apps like Google Playstore. Just unfreeze when you want to use them.
*You can use other apps like Root Uninstaller to remove system apps, but IMO Titanium Backup is the easiest to use and has one of the most functions.
There you go! Have a blazing fast and battery healthy SGY!
Click to expand...
Click to collapse
most android app work with autostart. in fact, all you can see in android is actually an app. debloatware is a good recommendation, but a complete app removing? please make sure about the validity of these information.

NEED THIS ONLY
By

kurotsugi said:
I'd like to confirm a few things. some of info on this thread is never heard. bcm work almost like performance gov. are sure about it?
is this information have been confirmed? as far as I know fewer widget is low ram consuming and more battery friendly. notification will prevent your device sleep. notification for every 5 second?it will make your battery life decreased, a lot. on other hand, clean ram have been proved consume huge battery power.
why should I use it when android have it's own task killer.?
most android app work with autostart. in fact, all you can see in android is actually an app. debloatware is a good recommendation, but a complete app removing? please make sure about the validity of these information.
Click to expand...
Click to collapse
First off I would like to quote myself -
"Right now I would like to share my observation, on what I presume to be one of the best ways to save battery while maintaining good performance."
As such, Im sharing this because
1. I think it might help other people.
2. I've tried it and compared it many times in many different rom, and what I recommend is based from my own experience
3. I know youre a dev. Im not, obviously. That doesnt mean I cant share what I think is useful. This is also backed up by the fact that Im not claiming Im sure that these actually work and that I can back it up with additional information. Again, this is just based on my experience.
again I would like to repeat the quotation from myself:
"Right now I would like to share my observation, on what I presume to be one of the best ways to save battery while maintaining good performance."
There you go. I hope that clears it all up. So please dont pick on me or anything just because Im not a dev. Thank you.

nope...I never intended to pick on you. I'm just feeding up my curiosity. I'm sorry if you feel like that.

thanks for sharing we need tat support...other be frank..be opened for sharing..
Sent from my GT-N7000 using xda app-developers app

kurotsugi said:
nope...I never intended to pick on you. I'm just feeding up my curiosity. I'm sorry if you feel like that.
Click to expand...
Click to collapse
Well, thanks anyways for noticing my thread. Now I know some of my suggestions may be far from the theoretical facts that you know, but there are times when actually testing something and comparing it with others yield better results than just looking up the figures. Thats just my take on it though, so Im not saying thats all there is to it.
Anyway, maybe I'll edit this thread and make it a SHARING THREAD instead. I'll just regularly view it and put all suggestions that other members have in the first post

glennlevi said:
Well, thanks anyways for noticing my thread. Now I know some of my suggestions may be far from the theoretical facts that you know, but there are times when actually testing something and comparing it with others yield better results than just looking up the figures. Thats just my take on it though, so Im not saying thats all there is to it.
Anyway, maybe I'll edit this thread and make it a SHARING THREAD instead. I'll just regularly view it and put all suggestions that other members have in the first post
Click to expand...
Click to collapse
The best way to save battery is really to know your fone.
1. any type of widget should be avoided( except maybe clock) as they are juice hoggers.
2. ANY app that suggest or implies that they save battery defeats their own purpose for they themselves consume battery life...figures.
3. ANY app that has "killer" attached to it isn't really helpful because most of the app be it user or system just restarts after. Same goes for anything with "booster"..
4. Ram cleaner should suffice
5. keep most settings to a minimum.
6. Accept the fact that our little fone has one crappy battery construction..

good tutorial
I will try it
Thanks

Imacatlover said:
3. ANY app that has "killer" attached to it isn't really helpful because most of the app be it user or system just restarts after. Same goes for anything with "booster"..
4. Ram cleaner should suffice
Click to expand...
Click to collapse
do you ever wonder how ram cleaner works ? by killing some applications. ram cleaner = task killer.
6. Accept the fact that our little fone has one crappy battery construction..
Click to expand...
Click to collapse
not that crap if you realize it's 2011 android phone with $120 price. right now with that money you can find a lot better phone, but in late of 2011 there is only few choice on that price range.

Please share your battery saving techniques and tips here! I will add the good ones on the first post with quotation.
Probably when there are already a lot, I will compile all tips to make one big guide which has been contributed by the whole community. Lets work together on this

irfanbagus said:
do you ever wonder how ram cleaner works ? by killing some applications. ram cleaner = task killer.
not that crap if you realize it's 2011 android phone with $120 price. right now with that money you can find a lot better phone, but in late of 2011 there is only few choice on that price range.
Click to expand...
Click to collapse
hmm... seems legit
Cant argue with you on that, most apps are generally glorified task managers, there are a few good ones though.
That's why i'm planning to buy a new android this christmas, maybe S1 or S2 depending on my budget.

wonder why no one want to make a battery saver kernel than superspeed kernel...

Imacatlover said:
That's why i'm planning to buy a new android this christmas, maybe S1 or S2 depending on my budget.
Click to expand...
Click to collapse
why not nexus phone ?
i do have plan to buy another android phone after i give my sgy to my girlfriend and back to my old rokr e6. but not this year. too much spending money for gadget this year.
encik_racun said:
wonder why no one want to make a battery saver kernel than superspeed kernel...
Click to expand...
Click to collapse
i do. well, not full kernel, just kernel module. search bacem-tweak in dev section. but i find that the best thing you can do to save battery is keep your phone sleep as long as possible. that's means remove bloatware, limit installed app with service, and only turn data/wifi when needed. combine with undervoltage, usually i got 3-4 days in single charge. in some very rare condition i got 6-7 days.

irfanbagus said:
why not nexus phone ?
i do have plan to buy another android phone after i give my sgy to my girlfriend and back to my old rokr e6. but not this year. too much spending .
Click to expand...
Click to collapse
Sir i want to ask you onething, offtopic, in nexus there is no memorycard slot, so we have to keep all data including gallery files and even a new rom in phone memory. If we want to flash a new rom, then how can we do that? While we wipe the data and cache before flashing all data will be deleted? The rom file too?.
Sent from my GT-S5360 using xda premium

I am using juice defender, i think it's good.
Sent from my GT-S5360 using xda premium

[Q] Dose installing many apps drain the battery more quickly

I have heard somewhere that installing many apps can drain the battery more quickly
I just want to know wheter or not installing apps that are not running in the background drains the battery?.
Thanks.
Sent from my GT-N7100 using xda premium

Not if they are not running in the background
Some people have installed more than 300 apps (user apps)
scribbled from my note 2 (N7100)

It's no different than your computer. You can have 50000 apps installed, but only the ones running consume active (ram, battery, network) resources.
-----
I would love to help you, but help yourself first: ask a better question
http://www.catb.org/~esr/faqs/smart-questions.html

Be aware though that many do run in the background even if you haven't run them.
Sent from my GT-N7100 using XDA Premium HD app

In General Yes, but I'd say depends on the apps, if there are 200 quality apps, (however I don't know how many are there in Play Store), and you've not turned on the background data for them, then it might not drain much. But if you've even 5 crap apps installed then they'll be enough Culprit to hog the juice more than those 200 apps.
In short, DO NOT install crap apps, do not install whatever you see. Read user reviews, see ratings, then decide. I, for me, think 3 times before installing one, even if it comes from a Top Developer tag.

Yes it does take more battery. So install the apps which you are going to use.

AlanDS said:
Yes it does take more battery. So install the apps which you are going to use.
Click to expand...
Click to collapse
Can you please back this up? Used storage doesn't increase battery usage.
-----
I would love to help you, but help yourself first: ask a better question
http://www.catb.org/~esr/faqs/smart-questions.html

It totally depends on applications you have installed
If you have hundreds of application and they don't autostarts or have no sync function and just occupying storage, it won't drain battery, in usual course i do have 150 user application installed but hardly it even drains recordable juice except some of it requires auto refreshing and sync
Sent from my GT-N7100 using xda premium

There are application that can disable the apps you've installed from auto starting or running in the background. Usually the biggest culprits are the free ad supported apps that tend to randomly call up even when the phone is in sleep mode. There are many ways to stop it from happening.. If you can pay for ad free app then go for it otherwise a lot of 3rd party apps will allow you to disable those features. I don't understand why someone would install 200-300apps in the first place when you only end up using less than a quarter of those. I guess its that "you never know when you're gonna need it" habits.
Sent from the Rabbit Hole

There are a number of apps which do run in the background, even when you don't manually run them first. Applications can register receivers to trigger at various events (such as boot-up complete, call ended, etc) and complete tasks in the background, or register themselves as services. You can check these with an autostart app, or I use ROM Toolbox (https://play.google.com/store/apps/details?id=com.jrummy.liberty.toolboxpro&hl=en - there is a free version available too).
On top of that, apps can also run scheduled tasks which can wake the phone out of deep sleep in standby, which can cause additional battery drain, through either CPU or network usage.
Unlike iOS which kills most background apps after a couple of minutes, Android apps can run indefinitely in the background, unless of course they are killed by memory management first.

3 'New' cool apps

Hey guys,
I just wanted to inform you about two apps I found recently that appear to boost performance and battery life a bit.
The one that boosts performance is a better and more efficient version of Seeder. It's called SeFix and (as opposed to Seeder) really does seem to work!
The second (the battery booster) is actually way more versatile:
It's called Greenify and it lets you disable apps to run in the background.
Eg. I set it to decline the Google Maps request to run in the background all the time; because as we all know, Maps often sucks somewhere near 7% of the battery.
(However, it needed me to root uninstall it and then install it from the play store, so it wasn't a system app anymore)
Anyway: I hope this helped and that it makes your device nicer to use (like it did for me)
Last but not least: as you are probably aware: Orange Backup is a backup app that lets you do complete (CWM or TWRP style backups) without having to go into the recovery!
Really awesome.

Re: 2 'New' cool apps
Been using greenify since the first version and agree it works well
Sent via TCP/IP

gsw5700 said:
Been using greenify since the first version and agree it works well
Sent via TCP/IP
Click to expand...
Click to collapse
I really feel it extends my battery life. I like how it prevents Maps to run in the background.
I guess you can also set it that way for FaceBook too (if you have the app. I don't because I don't want to be tied to FB all the time) lol

[Q] Why is Battery draining so fast on my Samsung Galaxy W (GT-I8150)?

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)
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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

Task killers and hibernation

Android experts all say task killers are unnecessary (except to kill a misbehaving app) because the android OS is designed to use all the available memory and it costs as much battery power to maintain a memory containing nothing as memory containing something. So emptying memory by killing an app just causes android to immediately load something else (or the same app) back into memory.
My question therefore has to do with apps like Greenify, which "hibernate" apps till they are actively called. Is hibernation just another name for removing apps from memory and therefore as counter productive as task killers? I can see the subtle differences but they seem minor compared to the similarities.
What do the experts who know android say? I don't know enough to really know.
Any studies to show an advantage (battery, etc.) in using an app like Greenify vs not?
Thank you.
Jeff

For me, I tried all of those battery saver app, none of them actually significant save battery, plus they use up some of your ram. I read somewhere says that android itself can handle battery save plus manage apps in it memory just fine.
Nam Huy Linux http://namhuy.net

Task Killers use extra CPU cycles and can lead to loss of battery life.
I'm not sure about hibernation but I think it just prevents apps from being started automatically when the device is powered on and therefore saves battery and CPU.
Sent from my Nexus 7 using xda premium

Anderson2 said:
Android experts all say task killers are unnecessary (except to kill a misbehaving app) because the android OS is designed to use all the available memory and it costs as much battery power to maintain a memory containing nothing as memory containing something. So emptying memory by killing an app just causes android to immediately load something else (or the same app) back into memory.
My question therefore has to do with apps like Greenify, which "hibernate" apps till they are actively called. Is hibernation just another name for removing apps from memory and therefore as counter productive as task killers? I can see the subtle differences but they seem minor compared to the similarities.
What do the experts who know android say? I don't know enough to really know.
Any studies to show an advantage (battery, etc.) in using an app like Greenify vs not?
Thank you.
Jeff
Click to expand...
Click to collapse
I have to agree with task killers not really being necessary, especially with newer devices, for the most part. I've had and used ATK for years now and use it on occasion but by no means do I use it regularly. The only app I use that ever misbehaves is Google Voice, while deleting a bunch of texts it will on occasion hang up and need to be killed. The two scenarios I use it regularly is before playing "some" games and usually before using VLC before watching a video. When using VLC I will often pause, skip, rewind, fast forward and on occasion use slow motion to further investigate any milk shake, if it's looks to be worth my time. In those two scenarios I believe it does make a difference. Other than that I don't use ATK and it's not needed.
As for Greenify, I've been using it since it was first released and I won't hesitate to admit to being a big fan. You don't want to use it for everything. Any widgets that need to update or apps you want to get notifications from I would not hibernate, even though it is supposed to work with some notifications I personally have never tried it. Having said that I have a ton of apps that I do hibernate with Greenify. System and user apps. And if I remember right I believe the auto-hibernate works at some point in time after your screen has shut off. If I'm wrong someone please correct me! I also have to say that using Greenify is part of the reason I routinely see 1-2% battery use during 9-10 hrs of standby and I have Never had a problem with wakelocks. I think it is unrealistic to attribute good battery life to any one specific configuration setting or app, it's going to be a combination of multiple things. And I think Greenify is part of the puzzle along with wifi use, wifi configuration, LTE use, display brightness, sync frequency, location settings and so on. My N7 is not a good example because it gets used very hard almost everyday and I still typically see 5-7+ hrs of screen on time and as high as 9 but rarely. My N5 also typically between 5-7 hrs sot, often as high as 9 and once saw 11 hrs of screen on time. And... I actually have screenshots. I would say give Greenify a try, used properly you will see a benefit. For what it's not worth, just my two cents!

Thank you. I've also used Greenify for a long time but don't know enough to really evaluate its effectiveness. I have not however dared to use it for system apps because of the warnings.
Which system apps have you hibernated without problem?

Anderson2 said:
Thank you. I've also used Greenify for a long time but don't know enough to really evaluate its effectiveness. I have not however dared to use it for system apps because of the warnings.
Which system apps have you hibernated without problem?
Click to expand...
Click to collapse
Google search, chrome, keep, news and weather (don't really use), youtube. Google play books, games, movies, music, Google+ and Hangouts I have disabled because I use other apps but those could very well be hibernated except for Google+ and Hangouts (notifications).
I missed currents, email, korean keyboard, google pinyin, iWinnIME, google play magazines which I have disabled also but any of those could be hibernated.

Thank you.

Anderson2 said:
Thank you.
Click to expand...
Click to collapse
No problem. I just realized I show google search in my list of apps I hibernate but I should mention that I don't use google now. If you do you probably want to leave google search alone if you want google now notifications.

That's fine. I don't use Google search, google plus, Hangouts, etc. Etc. Either but was afraid to disable them because of potential problems when the next system update comes. How do you disable them? Titanium b/U or something else?
(I'm rooted).