Database Users

[REF] UPDATE: ALL GOVERNORS! :) Save battery while running ANY Android build

As android builds are getting more and more closer to being daily builds, one of the standing issues that remains is battery life.
This thread is where posts concerning How to Save battery should go. NOT Questions, but suggestions. If your suggestion is one to look into, it will be added to the OP.
UPDATE: You can now use ALL GOVERNORS For the CPU!​ (Read more to find out how) ​--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
SetCPU​
SetCPU, is an app more commonly used for over/under clocking devices.
This short tutorial will show you how you get the app,
get it running, and of course save battery!​
*YOU NEED A ROOTFS.IMG THAT GRANTS YOU ROOT ACCESS!*
1. Get SetCPU
A. Download it from *HERE*. (The only XDA thread I could find for it)
OR
B. Support this great application and get it from the Android market by searching for SetCPU.
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2. Getting the App working
1. Once you have the application installed, launch it from your drawer and either grant it Root Permissions or it may auto-configure.
2. Hit Auto Detect Speeds.
3. It should show you the speeds your device it currently running at, now move over to [Profiles] and click Enable and if you want click on Notification.
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3. Make your profiles
1. Sleep Profile - 384 Max/245 Min- Interactive setting
(It may seem high, but this keeps it so that your device wakes up quickly)
2. Battery < 30
Max 614/460 Min- Interactive/Conservative Setting
*Try out the SetCPU Widget!*
If you have any personal settings that you think might be better than these please do post!
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UPDATE 9/15​ ALL CPU Governors!
To use the modules use this kernel built from the GIT, and hit auto detect speeds on SetCPU again. Under the main tab choose Your preferred setting..
You can find what all the the kernels differ in in the further pages of this thread, I will update OP later.
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Advanced Tab
20000 Sampling Rate
30-50 Up Threshold (THIS IS THE KEY: This means when your CPU load hits 30%, it will scale up the mhz. If the phone still responds too slow for your taste, set this lower)
http://forum.xda-developers.com/showthread.php?t=777921
Check Set on Boot (And Apply)
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Turning off Background Services and Adjusting Brightness​
Things like Bluetooth, WiFi, Sync, GPS, and excessive brightness can really kill your battery.
A quick way to manage these settings is to hold down to add a widget on your home screen and choose [Power Widget].
This stock widget allows you to quickly see the service's your using, and the farthest one to your right allows you to switch between four brightness settings.
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Using that new kernel link provided, you'll get a nice boost in standby time too! Enjoy!

Additional battery saving tips:
* Don't use a live wallpapers
* Turn off 3G connectivity (Eclair-based ROMS need apps like APNDroid to do so)
* Turn off Background-enabled data transfers in the Sync page.

the app screebl is a battery saver for whenever you have your screen on.
MOD EDIT:
Screebl Pro is a PAID FOR APP..
Link deleted and warning given please do not post warez in the future.
Mark.

Is that a Paid application from the Market? If so it is warez. (Big No-No)

Shatterv2 said:
Is that a Paid application from the Market? If so it is warez. (Big No-No)
Click to expand...
Click to collapse
no it's donation-ware. You can find SetCPU in the G1 device section of the XDA forums for free...
http://forum.xda-developers.com/showthread.php?t=505419

Can we have on our hd2 a folder with Android Sdk ? Like in a rooted one ?

aussiebum said:
no it's donation-ware. You can find SetCPU in the G1 device section of the XDA forums for free...
http://forum.xda-developers.com/showthread.php?t=505419
Click to expand...
Click to collapse
Yes that was already stated in the OP

Shatterv2 said:
*YOU NEED A ROOTFS.IMG THAT GRANTS YOU ROOT ACCESS!*
Click to expand...
Click to collapse
Can you post one?

Ultimaex said:
Can you post one?
Click to expand...
Click to collapse
read here: http://forum.xda-developers.com/showpost.php?p=7088391&postcount=4

Thanks for the tips!

Ultimaex said:
Can you post one?
Click to expand...
Click to collapse
Rooted RootFS.img files by michyprima can be found *HERE* in the Installation Instructions section.
Mark.

SetCPU forcecloses on me with dan's froyo without sense. Anybody get this combo to work for them? Also, I did replace the rootfs file.

Strange, try the new froyo build by Darkstone.

reocej said:
SetCPU forcecloses on me with dan's froyo without sense. Anybody get this combo to work for them? Also, I did replace the rootfs file.
Click to expand...
Click to collapse
Yeah, I'm using SetCPU 2.01 with Dan's v1 vanilla froyo fine. When set to use "ondemand" CPU Governor and Autodetect speeds, getting much better battery life - it's only dropping ~1% every hour now EDIT: when idle, of course

aussiebum said:
Yeah, I'm using SetCPU 2.01 with Dan's v1 vanilla froyo fine. When set to use "ondemand" CPU Governor and Autodetect speeds, getting much better battery life - it's only dropping ~1% every hour now EDIT: when idle, of course
Click to expand...
Click to collapse
Happy to help!

Next thing (when I get around to it) is probably to try out the Conservative CPU Governor module... that will correctly scale CPU power according to load (ie. 245mhz => 384, etc) instead of like On Demand, where it jumps from 245mhz => 998mhz => lower....

ATK
My favorite Ap Right now: Advanced Task Killer - you can find it on market for free. With this you can kill tasks who run in backround etc.

RuffRap said:
My favorite Ap Right now: Advanced Task Killer - you can find it on market for free. With this you can kill tasks who run in backround etc.
Click to expand...
Click to collapse
Use Taskiller. Red Icon in the market. Free App is the exact same as the paid one. Kills tasks as well but detects tasks that ATK cant. Includes features like End apps once screen turns off and kill all apps 10sec's after boot. Great App IMO.

I've found out that JuiceDefender does a good job as well. If you buy the extension (UltraDefender?) it also has a CPU governer module which regulates your CPU speed based on usage.

maseo said:
I've found out that JuiceDefender does a good job as well. If you buy the extension (UltraDefender?) it also has a CPU governer module which regulates your CPU speed based on usage.
Click to expand...
Click to collapse
No need to pay - as I mentioned before, the "conservative" cpu governor module that is freely available (do a search!) will do exactly what you mentioned when used with SetCPU.

SetCPU and Autokiller

Hey all,
Sorry if this has been answered/asked already, but is there a way you can prevent SetCPU from getting killed by AutoKiller? I have the autokill-profile in AutoKiller set to "Default", but the system assigns SetCPU an OOM value of 11-14, which is the highest value for getting killed (essentially regarding it as extremely non-important). How does one PERMANENTLY set SetCPU on the "Do-Not-Kill List"?
Thanks in advance.
PS: I'm running KaosFroyo v35-1 and so I can't uninstall Autokiller.

Short answer: No
Long answer: Noooooooooooooooooooooooooooooooo

Hungry Man said:
Short answer: No
Long answer: Noooooooooooooooooooooooooooooooo
Click to expand...
Click to collapse
Lol...funny stuff
As for OP you can uninstall autokiller if you want too...just look up how to remove apps through adb or terminal on phone.

Hungry Man said:
Short answer: No
Long answer: Noooooooooooooooooooooooooooooooo
Click to expand...
Click to collapse
why cant you just lower the oom value by clicking and holding setcpu under the processed tab and select lower oom value, it will drop it to -17, which practically means it is being ignored.

"Practically" is not what he asked for. What he asked for is a permanent solution.

tyler1524 said:
why cant you just lower the oom value by clicking and holding setcpu under the processed tab and select lower oom value, it will drop it to -17, which practically means it is being ignored.
Click to expand...
Click to collapse
That only works for about 3 minutes, until the system automatically increases the OOM value back to like 12 or 13.

I don't understand... even when I have it set to system default, after a while, it still kills it. So that means, even if I were to uninstall Autokiller, the SetCPU would still be killed after a while?

Doesnt matter if its killed. Its android, itll come right back

Nikolai2.1 said:
Doesnt matter if its killed. Its android, itll come right back
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Click to collapse
That's the problem. SetCPU doesn't.

Acrono said:
That's the problem. SetCPU doesn't.
Click to expand...
Click to collapse
I check my processes constanly and i dont see it going away. Maybe im wrong

Maybe Autokiller is correctly determining that SetCPU is consuming more power and Country cycles than its providing. I've certainly found that to be the case with Kaos Froyo
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Sent via the XDA Tapatalk App

I'm joking about Autokiller's intuition but serious about the dubious benefits of SetCPU on an already overclocked ROM
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Sent via the XDA Tapatalk App

Nikolai2.1 said:
I check my processes constanly and i dont see it going away. Maybe im wrong
Click to expand...
Click to collapse
It's always killed after 10-15 minutes, even on the default setting. If I set it to aggressive, immediately after it goes into the background, it's killed within a matter of seconds.

paulbonner said:
I'm joking about Autokiller's intuition but serious about the dubious benefits of SetCPU on an already overclocked ROM
Click to expand...
Click to collapse
KaosFroyo is already overclocked? I notice a huge performance gain when I enable SetCPU and OC it to 710mhz. If KaosFroyo is indeed overclocked already, then it must be set pretty low, or at least, very close to stock settings....

Acrono said:
KaosFroyo is already overclocked? I notice a huge performance gain when I enable SetCPU and OC it to 710mhz. If KaosFroyo is indeed overclocked already, then it must be set pretty low, or at least, very close to stock settings....
Click to expand...
Click to collapse
Ocd to 710 by default
Edit: I've had the best results ditching setcpu and using the collin_ph script, just btw

I see that setcpu is at a constant 2 ooms. Now im using Zen express but idk if that makes a difference. And im set to strict

The real and best answer I have for the first post (and what I do, and advise everyone I am around to do)
Stop using Autokiller.
Android does a great job killing processes.
Most users use 4-5 apps constantly throughout the day, and if the few most commonly used ones stay in memory more often than not, the phone is FASTER, as a result of calling up apps instead of having to completely relaunch them every time.
YES, using autokiller to adjust your memory settings can help if you are normally running process-intense apps in the background (like I sometimes run a VNC for work that will chew up some processor time if I just hit 'home' when I'm done instead of killing the task, or sometimes a small game that you figured was not in memory anymore, is still chewing up processor time).
BUT
That is what, and only what, I use a task killer for. I open up Free Advanced Task Manager, kill my background process that I don't want running, and move on with life.
9 days out of 10, I don't use a task killer, and I NEVER use auto killer.
If you want to keep your phone faster than not, use 'back' to get out of apps instead of pushing 'home'. Unless 'back' is mapped to something in the app (like for some apps), back will end the process rather than leave it running.
I could write ten pages on why to not use autokiller, but a lot of guys who are a lot smarter than me will swear by it. I just find it slowing down my phone by forcing me to re-launch things like Handcent SMS, my Web Browser, and Google Voice, when I'd rather have those things stay running in the background. They don't chew up much processor time just sitting in the 'background', and my phone is WAY faster if it takes 1 second to open up each app instead of 3-6 seconds (because autokiller made my phone already automatically kill the task).
Good luck with your decision, sir.
And if you're using xtrSense, you can just set up your GScript to overclock how you want (mine's at 806800), and if you're using Froyo ROMs, you can use the battery tweak. SetCPU isn't that useful for most of these ROMs, since the methods of overclocking by collin_ph's battery tweak and xtrSense's GScript are faster and more efficient, and don't require a background process like SetCPU to be running.
But that's just my opinion. I hope it helps.

I use System Panel to basically monitor my memory instead of just relying on Autokiller to manage them for me. I also found that the way I use my phone, similar to the way pkopelek mentions, a few select apps a day, my free memory stays fairly close to what it did with autokiller installed. Average around 40-60 and if I kill a few off, up to 90-100.
One thing I have noticed is that System Panel comes with a cpu scale and shows your clock speed. With no SetCPU installed my CPU will drop down to 245 and then bounce around and finally settling back to 245 then the cycle starts again. With Collins tweak I get the same response. However, with SetCPU installed my CPU will clock down to 245 and sit there until I touch the screen. I have to believe that SetCPU is doing something that collin's isn't. Now the only way I can get it to behave this way is if I change the advanced parameters.
just my 2 cents.....

When I used AutoKiller and SetCPU (I used both between May and August) before I started using xtrSENSE v4.x, I never had a problem with SetCPU quitting working under any ROM, including any Froyo that was out at the time.
I only mean that perhaps the problem isn't between SetCPU and AutoKiller. Maybe it is the ROM??? Just guessing here.

Nikolai2.1 said:
I see that setcpu is at a constant 2 ooms. Now im using Zen express but idk if that makes a difference. And im set to strict
Click to expand...
Click to collapse
I'm using this: http://forum.xda-developers.com/showthread.php?t=685594 and the value is ALWAYS above 9. I've never had it down that low except when I temporarily add it to the ignore list (it falls out after about 5 minutes).

[Q] setcpu not working

I am using an hd2, and i have noticed something that may be causing a lot of battery drain, that is consistent among every build that I have used. When I use setcpu, and give it root access, and whether i select auto detect or manually put in nexus one/snap dragon, it does not listen to the cpu cap that i put. i will exit the app, and go back to it, and the cpu clock speed with almost always exceed the cpu cap that i set, and many times, it will be running at the full 998 mhz. why is this, and how can i fix it?

I uninstalled SetCPU the other day as a little experiment. It makes f-all difference to me. In fact it makes things worse.

no longer needed with the latest kernels

metaltorizo said:
I am using an hd2, and i have noticed something that may be causing a lot of battery drain, that is consistent among every build that I have used. When I use setcpu, and give it root access, and whether i select auto detect or manually put in nexus one/snap dragon, it does not listen to the cpu cap that i put. i will exit the app, and go back to it, and the cpu clock speed with almost always exceed the cpu cap that i set, and many times, it will be running at the full 998 mhz. why is this, and how can i fix it?
Click to expand...
Click to collapse
This problem seems to relate to a kernel feature called perflock .. disabling this in-kernel allows the cpu cap in setcpu to be adhered to .. Unfortunately this is done at compile time and has no userland interface to use. I dont think its relating to all the battery drain you see but for sure if you limit cpu speeds with profiles like screen off it will have an effect.

try updateing super user libraries.

BurekUSvemiru said:
try updateing super user libraries.
Click to expand...
Click to collapse
Whats that then ?

how would i go about updating the su libraries? does anybody have an actual fix to this, because i would think my battery would be a lot better if the set cpu app was actaully working. and no, the latest kernels dont seem to be doing their job, because they all burn through juice like theres no tomorrow.

u have 2.04 installed ? it fc'd for me , now im using 2.02 no problems , try that

metaltorizo said:
how would i go about updating the su libraries? does anybody have an actual fix to this, because i would think my battery would be a lot better if the set cpu app was actaully working. and no, the latest kernels dont seem to be doing their job, because they all burn through juice like theres no tomorrow.
Click to expand...
Click to collapse
You don't update the su libraries .. su is either a static file or a link to busybox .. i cba looking right now .. probably a binary compiled statically ..
To have your issue resolved have a word with your friendly neighborhood kernel builder and ask him to disable perflock .. Its not needed for normal operation.

I'm having the same problem. Does anyone know how to get setcpu to work?! I have an HD2 running darkstone Froyo.

[Q] Advice on my Nook's current softwares/settings

Looking for some advice as I am still pretty noob-ish. I apologize in advance if this thread is out-of-bounds in any way; every search for answers that I've conducted always seem to beat-around my questions. Any advice will be thanked ASAP, even if you can shoot me a url to the advice I need that would be awesome. If it appears that I'm on top of things that would be great to know as well. Thanks in advance!
I'm running CM7.1.0 Encore Signed emmc with Tiamat v4.1.0 kernel; using Ram Manager Pro for optimization in lieu of task killers, Nook Tweaks for CPU stepping and voltage management, "Antivirus Free" for virus protection, "Battery Calibration" to monitor/obtain max charge (~4200 mV), and "Set DNS" for faster web-based loading. I've also disabled Android Cell-Standby Services through ADB and removed useless apps such as camera and voice apps using Root Explorer. My biggest questions are as follows:
1. Am I running the best kernel for speed and battery saving?
2. What are good voltage settings for better battery conservation (currently on default voltage settings)?
3. Is there really a need for a virus protection, and if so is there something better than what I have?
4. Is there any settings that I should know about for "Set DNS" (didn't change settings, just installed and activated it)?
5. Are there any other technical ways to adjust battery consumption (have to charge every night under normal use)?
I keep telling myself that I'm probably good to go, but I want to be certain that I've been as thorough as I can be. If anyone does something differently with great results please feel free to advise! As I said before, any advice or even just urls that help with my questions will be thanked. Can't wait to discuss this more!

vessamj said:
Looking for some advice as I am still pretty noob-ish. I apologize in advance if this thread is out-of-bounds in any way; every search for answers that I've conducted always seem to beat-around my questions. Any advice will be thanked ASAP, even if you can shoot me a url to the advice I need that would be awesome. If it appears that I'm on top of things that would be great to know as well. Thanks in advance!
I'm running CM7.1.0 Encore Signed emmc with Tiamat v4.1.0 kernel; using Ram Manager Pro for optimization in lieu of task killers, Nook Tweaks for CPU stepping and voltage management, "Antivirus Free" for virus protection, "Battery Calibration" to monitor/obtain max charge (~4200 mV), and "Set DNS" for faster web-based loading. I've also disabled Android Cell-Standby Services through ADB and removed useless apps such as camera and voice apps using Root Explorer. My biggest questions are as follows:
1. Am I running the best kernel for speed and battery saving?
2. What are good voltage settings for better battery conservation (currently on default voltage settings)?
3. Is there really a need for a virus protection, and if so is there something better than what I have?
4. Is there any settings that I should know about for "Set DNS" (didn't change settings, just installed and activated it)?
5. Are there any other technical ways to adjust battery consumption (have to charge every night under normal use)?
I keep telling myself that I'm probably good to go, but I want to be certain that I've been as thorough as I can be. If anyone does something differently with great results please feel free to advise! As I said before, any advice or even just urls that help with my questions will be thanked. Can't wait to discuss this more!
Click to expand...
Click to collapse
Sounds like a good setup. You may experience market issues by removing cell service and camera, some apps may not show up. My question is how did you get tiamat's kernel to run on the nook?

bdcrim said:
Sounds like a good setup. You may experience market issues by removing cell service and camera, some apps may not show up. My question is how did you get tiamat's kernel to run on the nook?
Click to expand...
Click to collapse
I'd like to know that as well......

I used Tiamat's latest Evo NON SBC Kernel ( http://tiamat-dev.com/tiamat_evo/ ). After downloading I installed the zip through Clockwork (after wiping both caches) in boot-recovery and I'm guessing it's working fine... what issues have there been with Tiamat's before?
-XDA Premium on CM7 Nook Color

vessamj said:
I used Tiamat's latest Evo NON SBC Kernel ( http://tiamat-dev.com/tiamat_evo/ ). After downloading I installed the zip through Clockwork (after wiping both caches) in boot-recovery and I'm guessing it's working fine... what issues have there been with Tiamat's before?
-XDA Premium on CM7 Nook Color
Click to expand...
Click to collapse
No issues reported, because the only kernels around this forum are Barnes and Noble source. Let us know how the battery life is. Not to question your integrity, but did it stick, showed up in settings, about tablet?

That's a great point. It didn't stick. All seemed well when I installed it but I guess the long pause on the next reboot was from the system restoring the last kernel I had. After looking around some more I came to realize that in order to have control of CPU stepping with Nook Tweaks you must have Dalingrin's 2.6.29 OC Kernel 09/01/11 (http://coachz.inetpro.org/~dalingrin/nook/kernels/090111/) or later. So that's fixed.
Meanwhile my battery is only good enough that I have to charge it at the end of every day under normal use, sometimes earlier.
After that, my list of questions fall to:
1. What are good Nook Tweaks voltage settings for better battery conservation (currently on default voltage settings)?
2. Is there really a need for a virus protection, and if so is there something better than what I have?
3. Is there any settings that I should know about for "Set DNS" (didn't change settings, just installed and activated it)?
4. Are there any other technical ways to adjust battery consumption (have to charge every night under normal use)?
-XDA Premium on CM7 Nook Color

vessamj said:
That's a great point. It didn't stick. All seemed well when I installed it but I guess the long pause on the next reboot was from the system restoring the last kernel I had. After looking around some more I came to realize that in order to have control of CPU stepping with Nook Tweaks you must have Dalingrin's 2.6.29 OC Kernel 09/01/11 (http://coachz.inetpro.org/~dalingrin/nook/kernels/090111/) or later. So that's fixed.
Meanwhile my battery is only good enough that I have to charge it at the end of every day under normal use, sometimes earlier.
After that, my list of questions fall to:
1. What are good Nook Tweaks voltage settings for better battery conservation (currently on default voltage settings)?
2. Is there really a need for a virus protection, and if so is there something better than what I have?
3. Is there any settings that I should know about for "Set DNS" (didn't change settings, just installed and activated it)?
4. Are there any other technical ways to adjust battery consumption (have to charge every night under normal use)?
-XDA Premium on CM7 Nook Color
Click to expand...
Click to collapse
Sounds like your battery drains about normal. I lose around 12 to 15% per hour, always have. I have tweaked the voltage some, but did not see much of a result. There is is no need for virus protection that I am aware of. I have not seen a single thread on that issue (I have been around this forum for a year)
I can't advise on any DNS settings. You may want to play with the voltage some and see if that makes any difference on battery life. By the way, there is an updated kernel in the development forum in MiRaGe's kang build. Look for it in the OP. Also his build, for me, is the fastest and most responsive that I have used. Good luck.

bdcrim said:
Sounds like your battery drains about normal. I lose around 12 to 15% per hour, always have. I have tweaked the voltage some, but did not see much of a result. There is is no need for virus protection that I am aware of. I have not seen a single thread on that issue (I have been around this forum for a year)
I can't advise on any DNS settings. You may want to play with the voltage some and see if that makes any difference on battery life. By the way, there is an updated kernel in the development forum in MiRaGe's kang build. Look for it in the OP. Also his build, for me, is the fastest and most responsive that I have used. Good luck.
Click to expand...
Click to collapse
Thanks for the advice... I'll look up the kernel and see how it goes.

1) There's some voltage stuff listed here
2) I don't use any, it seems to me like most malware is centred around phones anyway. I just use Droidwall to block internet access for anything shady-lookin'. LBE lets you block more permissions, or CM7 will too, but with no SIM, no mobile data, no GPS, there is just not as much to be concerned about on the nook . Basically, being aware of what Permissions are, and checking them, should keep you safer than relying on a faceless, profit-motivated company.
www.theregister.co.uk/2011/11/21/mobile_security_dust_up/
4) If you're interested, Tasker can be used to under/overclock any app. So, your flashy game will run at 1200, your simple text reader at 800, and so on.

selection16 said:
1) There's some voltage stuff listed here
2) I don't use any, it seems to me like most malware is centred around phones anyway. I just use Droidwall to block internet access for anything shady-lookin'. LBE lets you block more permissions, or CM7 will too, but with no SIM, no mobile data, no GPS, there is just not as much to be concerned about on the nook . Basically, being aware of what Permissions are, and checking them, should keep you safer than relying on a faceless, profit-motivated company.
www.theregister.co.uk/2011/11/21/mobile_security_dust_up/
4) If you're interested, Tasker can be used to under/overclock any app. So, your flashy game will run at 1200, your simple text reader at 800, and so on.
Click to expand...
Click to collapse
Thanks! I'm definitely gonna purchase Tasker now, as I've been looking at it for a while... and I'll check out the voltage and the security links for sure.

selection16 said:
1) There's some voltage stuff listed here
2) I don't use any, it seems to me like most malware is centred around phones anyway. I just use Droidwall to block internet access for anything shady-lookin'. LBE lets you block more permissions, or CM7 will too, but with no SIM, no mobile data, no GPS, there is just not as much to be concerned about on the nook . Basically, being aware of what Permissions are, and checking them, should keep you safer than relying on a faceless, profit-motivated company.
www.theregister.co.uk/2011/11/21/mobile_security_dust_up/
4) If you're interested, Tasker can be used to under/overclock any app. So, your flashy game will run at 1200, your simple text reader at 800, and so on.
Click to expand...
Click to collapse
Would you be willing to share a profile for 4) as this is exactly what i am trying to do with no luck thus far. Thank you.

gsutton said:
Would you be willing to share a profile for 4) as this is exactly what i am trying to do with no luck thus far. Thank you.
Click to expand...
Click to collapse
This is where I got the info;
http://tasker.wikidot.com/cpu-profiles-governor-frequency-control

Help me: Need maximum battery time

I need maximum battery time. So what is the best kernel for this and it´s configuration? I don´t need answers like "search for it" . Go hell those stupid guys.

voidvader said:
I need maximum battery time. So what is the best kernel for this and it´s configuration? I don´t need answers like "search for it" . Go hell those stupid guys.
Click to expand...
Click to collapse
there is no such thing as perfect kernel or perfect configuration,
the factors that can determine the amount of battery usage depends heavily on the nature of the usage under the user itself,
most kernels with undervolt support and underclocking will do fine,
i'd suggest you try out tweaks and preferences yourself since no one can guarantee you an exact time frame,
but i'll give you mine,
ROM: WP8 Monochromatic 5.1
Kernel: Built-in rom (savie's)
Tweaks: Built-in rom
Scaling freq: 156min 624max
CPU Governor: ondemandx
reduced all bloatwares even gmail and maps,
Battery Time (heavy usage): 4hrs max (medium usage): 1-1.5 day max (minimal usage) 2-3days max
that's just about it,
please take the time to conduct a research on what is your best prefered battery saving method,
don't call anyone stupid,
it's bad and potato disapproves

Rom doesnt matter really if you manage the applications well.
Use kuros kernel + kuros tweaks. Thats the best battery saving combo Ive tried.
For governor, use ondemand, the most battery efficient governor and use deadline for i/o
deathnotice01 said:
there is no such thing as perfect kernel or perfect configuration,
the factors that can determine the amount of battery usage depends heavily on the nature of the usage under the user itself,
Click to expand...
Click to collapse
Not really. Change between Merruk #206 and kuros latest, you can really notice the battery drain difference. Its battery efficient than stock kernel in my tests.

Here u go:
Before all id reccomend updating the software to the latest version xD
Use the latest white kernel
Use v6 supercharger and some other tweaks
Reduce the screen brightness
Lower the system volume in the sounds options
Disable animation
Disable auto-sync
Disable backup settings
Disable roaming ^^,wifi,mobile internet,bluetooth when you dont use it(gps even if turned on allways is only actually active when theres a open app that uses gps ^^)
Disabling more sound effects will make it ugly and not cool lol,so do as u wish with thease:
Keyboard sounds
Lock screen sounds and vibration
set a boot frequency in set cpu like:
312-832,conservative,sio
Set up proper profiles in set cpu like
Screen off
312-312,powersave,noop
Charging
312-832,ondemand,sio
Battery 50 F
312-832, conservative,noop
Battery <16
312-832, conservative, noop
here just take my setcpu profiles, i made it in setcpu 3.07 just put it in the root of your sdcard and in setcpu enable profiles and click on restore profiles and click on that
http://www.mediafire.com/?ru786ho4o9i7jdp
Here are some build.prop tweaks
ro.ril.power.collapse=0
ro.ril.disable.power.collapse=0
dalvik.vm.heapstartsize=4
dalvik.vm.startheapsize=4
this one is alredy in v6 supercharger ;P
pm.sleepmode=1
remove some useless apps that u dont use but their allways running in the background(yeah remove anything u will never use)
Google maps
email(not gmail)
software update
and buying a new, better battery isnt a bad idea too ? is it (obviously xD)
I hope i Helped, this and some of my other build.prop tweaks made my battery go like lol xD it was lasting so long idk how much was it

Thank you all! Thanks so much guys!:good:

Filip98 said:
Here are some build.prop tweaks
ro.ril.power.collapse=0
ro.ril.disable.power.collapse=0
dalvik.vm.heapstartsize=4
dalvik.vm.startheapsize=4
this one is alredy in v6 supercharger ;P
pm.sleepmode=1
I hope i Helped, this and some of my other build.prop tweaks made my battery go like lol xD it was lasting so long idk how much was it
Click to expand...
Click to collapse
the correct one is "dalvik.vm.heapstartsize". dalvik.vm.startheapsize is not exist. nevertheless, this script only work for ICS. GB based rom doesnt have these prop. please be carefull with any prop for virtual memory like this one. if you clean your dalvik-cache you might ended up in bootloop.

Lots of information.
Thanks guys.
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