Develop Bugs

[Q] HTC EVO -- Best Battery life ROM???

Can anyone tell me which ROM (STABLE) provides the best battery life on HTC EVO???
Thanks!

I have been through just about all on this site and Fresh's newest seems to work best for me. With moderate daily usage I can go without charging for about 22-24 hours. Of course all I need to go is 12-14 b/c I charge every night anyway, but I did leave off charger one day just to see how far I could go. I'm giving Calk's latest a try right now to see how it goes. Just be sure to give whatever ROM you try a couple charges before making a final decision, as it usually takes this amount to get an accurate read on true battery life.

how many of these post are we going to need lol

buddho81 said:
Can anyone tell me which ROM (STABLE) provides the best battery life on HTC EVO???
Thanks!
Click to expand...
Click to collapse
I know that the latest kernels off the latest build have been killing my battery, it's horrible for my EVO.
But you really have to try different rom/kernel/PRI/radio combinations to find the best battery life for your Evo. I wish there was a preset rating system for each rom though, just to see how things work for everyone else(i.e. battery life, quadrant scores, force close problems, etc.)...but there really are a lot of variables, so I don't think that may ever happen.

Yeah I agree there isn't a clear cut winner. Everyone uses their phone different so it will differ for everyone.
Totally agree to give it a few full charges... I suggest when you get a new rom and/or kernel installed to reset the battery stats (can be done in recovery) then use it till it dies then charge to full before turning it back on.
Personally, I've been using Fresh 3.3 w/ the Kings #6 kernel and not only has the phone been screamin' fast the battery has been good. I'm only on my 2nd charge up though so I still have one or two to go before everything smooths out.

buddho81 said:
Can anyone tell me which ROM (STABLE) provides the best battery life on HTC EVO???
Thanks!
Click to expand...
Click to collapse
2.2 Evo Kernels Tested and charted

admorris said:
I have been through just about all on this site and Fresh's newest seems to work best for me. With moderate daily usage I can go without charging for about 22-24 hours. Of course all I need to go is 12-14 b/c I charge every night anyway, but I did leave off charger one day just to see how far I could go. I'm giving Calk's latest a try right now to see how it goes. Just be sure to give whatever ROM you try a couple charges before making a final decision, as it usually takes this amount to get an accurate read on true battery life.
Click to expand...
Click to collapse
What kernel are you using for the battery life?
Sent from my PC36100 using XDA App

catseyenu said:
2.2 Evo Kernels Tested and charted
Click to expand...
Click to collapse
As posted here, the tests showed that CM w/ Snap 7.5 probably has the best battery life - and it seems by a lot.

download juice defender

[ROM]CM-B2_Supersonic-XV a.k.a [email protected]$T(SuperMOD) UPDATE#5 w snap 7.5

I'm using the latest Fresh and I just plugged my phone in at 15% battery after 37 hours. I'm pretty happy with that.

Fresh Rom always gave me good battery.. I'm just using the rooted stock OTA and am getting great battery life.
Sent from my HTC Evo 4G using XDA app.

Sporkman said:
how many of these post are we going to need lol
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Click to collapse
Until someone takes the time to make a section that covers the different problems. Battery problems, Battery Problems w/ ROMS, Apps not loading, etc. etc.
Wishful thinking. I do like the search in the search to help cut down this crap

Wallabe said:
Until someone takes the time to make a section that covers the different problems. Battery problems, Battery Problems w/ ROMS, Apps not loading, etc. etc.
Wishful thinking. I do like the search in the search to help cut down this crap
Click to expand...
Click to collapse
I think it would be a great idea for this kind of stuff to happen. Some aggregated source where everyone can submit their information using various roms, kernels, etc. Whether it be information regarding Quadrant scores, linpacks or battery life. On computer hardware forums they generally have a section dedicated to OCing records with charts listing someones entire setup while attaining the clock speeds. I don't see why a similar implementation can not be done here.

Wallabe said:
Until someone takes the time to make a section that covers the different problems. Battery problems, Battery Problems w/ ROMS, Apps not loading, etc. etc.
Wishful thinking. I do like the search in the search to help cut down this crap
Click to expand...
Click to collapse
How about if we make a section purely for questions and answers? That could work.

Two words......juice defender
Sent from my PC36100 using XDA App

i use Fresh's Rom made my battery life live avg abt 15 hours

Over 40 kernels were tested and benchmarked in 7 different ways, and the results are posted here.
Should tell you everything you want to know, without bringing roms into the picture (since battery life is most affected by the kernel used, not the rom)
edit - looks like I'm a bit late withthat link - I see the thread for that site was already posted above. It's a great resource.

Fresh 3.2, hands down best battery life for me. 3.3 was pretty bad, as was myn's release....which sucks, because myn's rom is otherwise awesome.

I am using Fresh 3.3.0.1 with a baked kernel that is able to over clock. I then have SetCPU installed with profiles for different states of the phone. If my screen is off I have the cpu set to a max of 500MHz to save battery if there are any processes running in the background. I then have my cpu set to 1119MHz when the phone is plugged in or at 100% with the screen on just because I like a snappy phone. Then when the battery drops below 50% I have it return to stock speeds.
I use my phone heavily for things like subsonic, QIK, FB, Calendar, wireless tether, and of course since unlimited data, calling to any cell, and texting I am on it a lot keeping in touch with friends. I also use the sprint nav at least twice a week.
Results will vary from user to user but so far the phone has been on 7 hours and after some moderate use it's only down to around 75% on the battery.
Again this is how I MYSELF use my phone with this rom and kernel this may not be how you use your phone and you may see different results.
What I have done is searched roms and installed them in total I have used 4 different roms. Baked, Cyanogen, Fresh, and Virus. After installing each rom and setting up my phone I made a nand backup of each so I can flash between them as needed to test. I have found out of all of these roms Fresh 3.3.0.1 with a kernel from the baked roms has worked the best for MY daily use.

Best ROM for battery life

I need opinions, anyone?
I keep flashing different ROMS and the battery has always had bad life
I've done a lot of different methods to fix battery life issues, but no go.

Having good luck with Swagged Out Stock.
Sent from my PC36100 using XDA App

A lot of people say AOSP ROMs are good on battery life cuz the sense is gone.
Try out Xplod RLS (one of my favs) test it out see how it goes for you. It's an AOSP btw.
For sense I recommend Tommytomatoes Classic v0.0.0.4 its awesome!

How long does your battery last? Are you running mobile data all day? GPS?
I can get around 20-24 hours put of my battery with real heavy usage. Around 2 days with normal use.
I keep my 3g and everything off until i need it.
HTC EVO 4G running Mikg 2.58

Don't know who your talkin too but I'll reply lol
On Classic I'm gettin roughly about 1d 19h 43m with pretty decent usage text, call, xda, browsing jus putting it to charge right now

I have always had the best success with AOSP and custom kernel.
Currently running ICSmod7 with latest tiamets. With 4g it drops fast but without I get through a full day no worries medium use. Text, fb, music during workout ect...
Sent from my PC36100 using xda premium

Getting good battery life with MikG 2.61.

mikg rom to me is best for battery life .and very stable rom and clean so try and let us know .im running miui and battery life is pretty good but not as good as my mikg rom

sense-free
I've been experimenting with ROMs and kernels for the last 18 months, always looking for best battery life with regular to heavy use. A good custom kernel will sometimes give you an extra 10-15 %. Using setCPU or another app like systemtuner (my pref) to turn CPU down while screen off can also give you 5-10%. Far and away the best thing for my battery is to use an alternative launcher (ADW for me) and then use Titanium backup pro or systemtuner to freeze sense. you just find the two elements in the process list that start with "HTC sense" and freeze them. Night and day. FYI I run synergy and have always come back to Myn's ROMs cause they are good for battery from the start, but they also take well to pretty much any custom kernel, which isn't true for all ROMs. I like everything to work so I always ditch AOSP ROMs a few days after trying them.

sam9696 said:
I've been experimenting with ROMs and kernels for the last 18 months, always looking for best battery life with regular to heavy use. A good custom kernel will sometimes give you an extra 10-15 %. Using setCPU or another app like systemtuner (my pref) to turn CPU down while screen off can also give you 5-10%. Far and away the best thing for my battery is to use an alternative launcher (ADW for me) and then use Titanium backup pro or systemtuner to freeze sense. you just find the two elements in the process list that start with "HTC sense" and freeze them. Night and day. FYI I run synergy and have always come back to Myn's ROMs cause they are good for battery from the start, but they also take well to pretty much any custom kernel, which isn't true for all ROMs. I like everything to work so I always ditch AOSP ROMs a few days after trying them.
Click to expand...
Click to collapse
Underclocking your CPU typically causes higher battery drain... unless you're overclocking. As long as nothing is really hammering the CPU in the background (which is the problem, not the CPU speed!), then it's better to let the CPU enter higher power states in order to finish the work quicker and return to low power sleep state. Intel calls this HUGI (Hurry Up and Get Idle). Overclocking can have bad effects with HUGI due to the higher voltage required to run at those frequencies. Lol'd at your AOSP comment though. I suppose some people are okay with subpar android, aka sense .
My Evo can last a week on a single charge. CM7.1, 1850 mAh aftermarket battery (slim, stock battery cover), Tiamat 4.1.0 kernel, aggressive undervolting and monitoring of wakelocks combined with 90% wifi usage (3g is the #1 source of battery drain!).
Sent from my Transformer TF101

Tommytomatoes The Classic is a solid sense rom with good battery life its fast as hell, has lots of mods and themes and is pretty sick I've been stuck on it for over a month now I've flashed other roms but always come back to the classic after a few hours
Sent from my Classic-EViLizED-ToMAToFiED-EVo4g-

maybe a dumb question. What is the difference between underclocking and undervolting?
Gary13579 said:
Underclocking your CPU typically causes higher battery drain... unless you're overclocking. As long as nothing is really hammering the CPU in the background (which is the problem, not the CPU speed!), then it's better to let the CPU enter higher power states in order to finish the work quicker and return to low power sleep state. Intel calls this HUGI (Hurry Up and Get Idle). Overclocking can have bad effects with HUGI due to the higher voltage required to run at those frequencies. Lol'd at your AOSP comment though. I suppose some people are okay with subpar android, aka sense .
My Evo can last a week on a single charge. CM7.1, 1850 mAh aftermarket battery (slim, stock battery cover), Tiamat 4.1.0 kernel, aggressive undervolting and monitoring of wakelocks combined with 90% wifi usage (3g is the #1 source of battery drain!).
Sent from my Transformer TF101
Click to expand...
Click to collapse

Underclocking is when you set the speed of the processor to a lower setting than the stock clocks where as undervolting is lowering the voltage needed to run it at a certain speed be it stock underclocked or overclocked. Simplest way I understand it.
Sent from my PC36100 using Tapatalk

Real culprit for batt issues
Has anyone ever bothered to understand that theres a pesty bug no one knew of.. Called CIQ "carrier IQ"
Ya this is one of the main reasons behind bad batt.. Sprint and other carriers allow a company to monitor and chart everything we do and it mirrors off txts and data sent and is designed to pick up on.key words... Basically an Invasive tracking monitor. It's a huge in noticed drain... And its been shown to be removed from system/app in many custom roms. But it never does cause its so strattled throughout the OS.
Sent from my PC36100 using XDA Premium App

IMPuLSe EX said:
I need opinions, anyone?
I keep flashing different ROMS and the battery has always had bad life
I've done a lot of different methods to fix battery life issues, but no go.
Click to expand...
Click to collapse
I have been using evodeck v1.3 with the lee kernel and the rom just sips on my battery and gives me outstanding battery life with amazing speeds

lojak29 said:
Has anyone ever bothered to understand that theres a pesty bug no one knew of.. Called CIQ "carrier IQ"
Ya this is one of the main reasons behind bad batt.. Sprint and other carriers allow a company to monitor and chart everything we do and it mirrors off txts and data sent and is designed to pick up on.key words... Basically an Invasive tracking monitor. It's a huge in noticed drain... And its been shown to be removed from system/app in many custom roms. But it never does cause its so strattled throughout the OS.
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
"no one knew of" are you kidding me? Carrier IQ has been known about for at least a year now... and no, it's not responsible for any significant amount of battery drain...
Sent from my Transformer TF101

Definantly aosp in my experience. Cm7 gets my vote for battery life

Gary13579 said:
Underclocking your CPU typically causes higher battery drain... unless you're overclocking. As long as nothing is really hammering the CPU in the background (which is the problem, not the CPU speed!), then it's better to let the CPU enter higher power states in order to finish the work quicker and return to low power sleep state. Intel calls this HUGI (Hurry Up and Get Idle). Overclocking can have bad effects with HUGI due to the higher voltage required to run at those frequencies. Lol'd at your AOSP comment though. I suppose some people are okay with subpar android, aka sense .
My Evo can last a week on a single charge. CM7.1, 1850 mAh aftermarket battery (slim, stock battery cover), Tiamat 4.1.0 kernel, aggressive undervolting and monitoring of wakelocks combined with 90% wifi usage (3g is the #1 source of battery drain!).
Sent from my Transformer TF101
Click to expand...
Click to collapse
So you clearly don't talk on the phone at all.
Sent from my PC36100 using XDA App

alaman68 said:
So you clearly don't talk on the phone at all.
Sent from my PC36100 using XDA App
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Click to collapse
Ah yes, the people that come in arguing and debating my claims. This happens every time. I use my phone quite often, and still get amazing battery life.
Sent from my Transformer TF101

Gary13579 said:
Ah yes, the people that come in arguing and debating my claims. This happens every time. I use my phone quite often, and still get amazing battery life.
Sent from my Transformer TF101
Click to expand...
Click to collapse
Dude you have a serious problem I honestly think you need to quit thinking people are attacking you this is the 3rd time I've seen you in a thread that I'm in and not once have I seen you post anything good or helpful I honestly think you should refrain from posting that's my opinion only cause I think your on a kid level and you really can't carry an easy conversation with someone sometimes I wonder if you even have this phone and if your trolling EVO Forum instead of the Transformer Forum.
TrevE Supporter!
If you like being on this site everyday!
I suggest you click this link a fill it out!
http://americancensorship.org/
Then HIT THE THANKS!

Did I FRY my CPU??

First of all im not putting down anyone and there custom roms. As I am an avid flasher of them and there great features..
However.. Ive noticed with every rom I flash, my battery life SUCKS. I know kernels are suppose to have battery saver mods, but never seem to work for my phone. The only way I seem to get great battery life is if I odin back to stock. Its seems to last forever on stock.
On stock.. I would average around 10% drain every two hours of moderate use.. mainly texting..
On Custom roms I average 10 to 15 % drain every hour with same moderate use..
My question is, Could Overclocking have caused this problem??

Orion78 said:
First of all im not putting down anyone and there custom roms. As I am an avid flasher of them and there great features..
However.. Ive noticed with every rom I flash, my battery life SUCKS. I know kernels are suppose to have battery saver mods, but never seem to work for my phone. The only way I seem to get great battery life is if I odin back to stock. Its seems to last forever on stock.
On stock.. I would average around 10% drain every two hours of moderate use.. mainly texting..
On Custom roms I average 10 to 15 % drain every hour with same moderate use..
My question is, Could Overclocking have caused this problem??
Click to expand...
Click to collapse
Quite possibly... And unfortunately, you have to test different Kernels with your ROM to see what works best, or just ask the Dev which Kernel they used when developing the ROM... That's a good way to get the best battery life because after all, that's the Kernel the Dev based the ROM off of. Another option is to check out Marcusants post on setting up your Kernel for your ROM, and I apologize if you've already tried that... I'm just trying to list options... I've had problems with different kernels on different ROMS... Well at least until Rodderik started making his Kernels with Viper ROMS... Then it started working perfect lol. How are you running your clocking? Conservative? Performance? Also, are you using SetCPU with an OC/UV kernel and the Voltage Control app? If you use the two together, it could cause a lot of issues, you'd have to choose one or the other.
On the other hand, I could be 100% wrong and it could be just your flux capacitor... You know how touchy those things are. Try chucking your phone over 88 MPH and see how that works. The next step is VERY important though... Whatever you do, don't forget to put your phone in airplane mode before you throw it in the air or it'll just fall right back down after a couple feet... Keep it in the air I always say.
The Serpents Shall Rise Again... And This Time, They're Bringing The Powers Of The Angels, And Shall Be The Vengeful Striking Hammers Of God. Rest Your Weary Eyes, For A Great Time Of Prosperity Will Surely Ensue.
Viper Squad now recruiting!

Im hoping once I hit 88MPH it will go back in time to when my phone actually worked. haha
I usually just use the Kernel that comes with the rom..
However I have used Set CPU and Voltage control together once. I messed around with the setting between performance and conservative.

Orion, first off. If u remember how "beepers" worked back in the day, if u ever had one, that's how text messaging works. It triggers a small ping when being sent or receiving message. So text messages really hardly use power. As far as ur battery is concerned, try this method if u like, just to see what kind of results u get. Charge battery completely with phone on first and then off. Then boot into cwm and wipe ur battery stats. Then drain ur battery completely without charging it. Then completely charge it up, and then see how ur battery does.
Sent from my SPH-D700 using xda premium

One more thing. Anytime u change rom or kernel, update ur prl and profile, then reboot ur phone..it does make a difference doint this.
Sent from my SPH-D700 using xda premium

LORDFIRE00 said:
Orion, first off. If u remember how "beepers" worked back in the day, if u ever had one, that's how text messaging works. It triggers a small ping when being sent or receiving message. So text messages really hardly use power. As far as ur battery is concerned, try this method if u like, just to see what kind of results u get. Charge battery completely with phone on first and then off. Then boot into cwm and wipe ur battery stats. Then drain ur battery completely without charging it. Then completely charge it up, and then see how ur battery does.
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
True, just don't wipe your battery stats too much, it could end up doing more harm than good. But good call, I overlooked that cuz I was being a smart ass lol... Please don't throw your phone, that's never a good idea haha.
The Serpents shall rise again... And this time, they bring the powers of all of the Angels in heaven with them, becoming the vengeful striking hammers of God. Rest your weary eyes, for a great time of prosperity shall ensue.
Team Viper now recruiting!

Were you overclocking when your battery life sucked? What uses more gas, riding at 55MPH or 90MPH? What was your battery life like on custom ROMs with stock frequencies?
Sent from my SPH-D700 using XDA App

LORDFIRE00 said:
Orion, first off. If u remember how "beepers" worked back in the day, if u ever had one, that's how text messaging works. It triggers a small ping when being sent or receiving message. So text messages really hardly use power. As far as ur battery is concerned, try this method if u like, just to see what kind of results u get. Charge battery completely with phone on first and then off. Then boot into cwm and wipe ur battery stats. Then drain ur battery completely without charging it. Then completely charge it up, and then see how ur battery does.
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
Yeah, I always Wipe that stats after a fresh rom install..
I dunno, im due for an upgrade in april, so hopefully the new GS3 is on its way by then

kennyglass123 said:
Were you overclocking when your battery life sucked? What uses more gas, riding at 55MPH or 90MPH? What was your battery life like on custom ROMs with stock frequencies?
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
Battery was ok when I overclocked.. went down hill after that. Except whenever im on stock EI22 Gingerbread and it runs all day.
On custom roms with stock frequencies I would still see a significant drain.

I don't think you fried it if it's still running fine on stock. I'd be more likely to think you're overclocking with an aggressive governor that is making your cpu stay at higher frequencies.

I havent been doing any OC or UV in months now and still have the problems on custom roms. Perhaps I got the phone that doesnt like to be modded.. Damn Sprint ha

also screen brightness has a HUGE effect on battery life. also do you do games and such? Those can be very draining as well. I am on a viper rom going on 14hrs and still at 78%. but i mostly text with my phone. about 15,000 a month to be exact. and use f.b. and xda pretty heavily. and different kernels can make the difference between 6 hours and 20.
---------- Post added at 08:58 AM ---------- Previous post was at 08:55 AM ----------
Orion78 said:
I havent been doing any OC or UV in months now and still have the problems on custom roms. Perhaps I got the phone that doesnt like to be modded.. Damn Sprint ha
Click to expand...
Click to collapse
i will say that my phone is particular on what rom i do run no matter what kernel i use

I just mainly text and surf the web occasionally. Funny part though the only game I play rarely is Deer Hunter Challenge which is a pretty high def large file game and when i play that my battery doesnt seem to drain. Right now Ive gone down 10% over the last hour just sending about 15 texts. And I have my display set to auto brightness

It's real simple...overclocking equals faster cpu AND faster battery drain. Do not overclock or do not complain about battery...one or the other.
Sent from my SPH-D700 using XDA App

No. Your battery capacity is deminishing. Its normal.
Sent from my SPH-D700 using Tapatalk

CM10 Performance

I've been running the 9/15 nightly, and while I haven't had excellent battery life, it has typically lasted around 8 hours or more. Today was a little different; with only an hour of screen time, my battery was down to 30%. On top of that, it usually takes 3 or 4 presses of the home button to wake my phone up.
EDIT: I forgot to add that my screen usage usually accounts for 60%, or more, of my battery usage--and that's with minimal usage. It always seemed like my screen was draining the battery even when it was off. It is much less now.
I read on the forums that a simple increase of the minimum frequency can resolve the waking issue. However, it didn't; instead, my battery life improved dramatically. I'm used to a pretty jagged and sharp battery graph, but now it's as smooth and linear as I have ever seen it.
Can anyone explain why raising the min freq improved my battery life?
Sent from my SAMSUNG-SGH-I747 using xda premium

Why don't you update? Its Oct 5th. Maybe give that a try? Old build man.

Well, I've considered it, but I always check the main thread first. It always seems like people are having LTE or GPS issues with the new build. Everything, aside from the battery life and screen waking, has been working exceptionally well. Not to mention, school and work hasn't given me enough free time to experiment with the new builds. I might try this tonight though.
Sent from my SAMSUNG-SGH-I747 using xda premium

DStevens5833 said:
Well, I've considered it, but I always check the main thread first. It always seems like people are having LTE or GPS issues with the new build. Everything, aside from the battery life and screen waking, has been working exceptionally well. Not to mention, school and work hasn't given me enough free time to experiment with the new builds. I might try this tonight though.
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
The rom actually updates EVERY DAY you have missed many many updates here is a changelog http://changelog.bbqdroid.org/#d2att/cm10/1349329973

well all devices are not created equal. i suppose its possible that the ideal minimum frequency for your device is a above stock (or whatever you had it at before). raising the minimum frequency can improve cell connection, screen flickering issues, ect (things that cause battery drain).
also i advise you to update your cm build. either that or switch to cm monthly or another rom that doesn't push out critical updates every night. Try a rom that is considered stable like liquidsmooth, slimbean..

On the Oct 3 build and it's very fast. Batter life has been quite bad, have to charge it twice a day. Had a lot of crashing yesterday, phone decided to reboot continuously. Apollo has stopped error persisted until I cleared cache, and keep getting email/exchange devices have stopped errors until I disabled email.
Battery is the only thing that really bugs me though
Not sent from my toilet with a soap bar.

@nccu_eagles & @jefferson9: To be honest, I never realized the minimum frequency affected so many different elements outside of power saving. I admit I haven't kept it up-to-date; I'm always afraid to update after seeing some of the bugs people post. Perhaps I would be better off with a more stable release--at least until the semester is over, which will leave me with much more time to dabble. If I finish my homework in time, I might try a few different roms tonight.
@adammur: Those are the type of bugs that keep me from updating.
On another note, today's battery life has been great. My battery would normally drain between 12-20% an hour. Today, I'm averaging 5% an hour with similar usage. :good: Anyways, thank you guys for the replies. I'll see if I can't find something to better suit me.... for now :fingers-crossed:.

Before playing with the TouchWiz Jellybean Milestone 5 (Firefly) ROM by Drew Garen, I was running the JellyBro's euroskank October 3rd nightly along with LeanKernel as well as JuiceDefender Ultimate...
My Galaxy S3 could literally last 2 days with that setup. It was UNREAL.
The problem is, I really actually do like the TouchWiz interface (I know I know, I'm one of the few).
But if ultimate battery life is your goal with the Samsung Galaxy S3... Do a factory reset / cache wipe and install the Oct 3rd version of JellyBro's euroskank for the d2att... Then go ahead and install yourself the tmobile / AT&T version of leankernel...
You WILL NOT be sorry!

DStevens5833 said:
I've been running the 9/15 nightly, and while I haven't had excellent battery life, it has typically lasted around 8 hours or more. Today was a little different; with only an hour of screen time, my battery was down to 30%. On top of that, it usually takes 3 or 4 presses of the home button to wake my phone up.
EDIT: I forgot to add that my screen usage usually accounts for 60%, or more, of my battery usage--and that's with minimal usage. It always seemed like my screen was draining the battery even when it was off. It is much less now.
I read on the forums that a simple increase of the minimum frequency can resolve the waking issue. However, it didn't; instead, my battery life improved dramatically. I'm used to a pretty jagged and sharp battery graph, but now it's as smooth and linear as I have ever seen it.
Can anyone explain why raising the min freq improved my battery life?
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
What did you increase it to, if you don't mind me asking?

I normally use up-to-the-moment builds (downloading 10/07 ad I write) and my battery life has been reasonable - up to two days total with light use. Seems to me to be a matter of making sure you're not running too many (any?) battery-hogging apps (BetterBatteryStats has been enormously helpful in this respect).

Unfortunately, I was unable to play with anything last night due to homework. I did, however, purchase and install BBS and JD. I'm actually at work right now, so I can't really post much other than a few screenshots.
Sent from my SAMSUNG-SGH-I747 using xda premium

Cuddlesy said:
What did you increase it to, if you don't mind me asking?
Click to expand...
Click to collapse
I increased it from 384 to 486. So far it seems to have helped a lot. I'm actually about to try a couple different ROMs and see how they go. Wish me luck :cyclops:

dpav02 said:
The problem is, I really actually do like the TouchWiz interface (I know I know, I'm one of the few).
Click to expand...
Click to collapse
You are not alone, I enjoy the functions/features of the OTA ROMs.
Notification accessible when in full screen apps, the multi-window screen lets you "clear all" and access task manager&Google Now, the stock dialer has more efficient functions(Displays all calls from a contact if selected, slide right/left to call/send sms)
But going back on topic, I set my cpu to be conservative but I'm not sure if that'll save battery.
I want to be able to game when at work but not have the power-saving setting limit it yet still be able to last me a day. The OTA ROMs' power-saving feature was able to do that.

[Q] AOKP Ktoonsez + KT747 = ?

Hey I want to know how KT747 kernel works with AOKP Ktoonsez and Task650. From what I hear its pretty good. My main concern is battery life. I heard some people get around 5 hours of onscreen time which is incredible. If you are running these two together, what are good settings for good battery life? I'm using KT747 with CM10 M2 and Ktoonservative/noop but battery life is kinda bad. Thanks

I'm running that setup and although i can't really compare my battery stats to your as i have a 4400mah battery, i can say that for my phone atleast the battery life is superb. I actually just plugged it in after 67 hours, with about 7 hours screen on time. Obviously this isn't going to happen on a stock battery (mine came with a 2100mah), you could realistically expect a little less than half these numbers. I would suggest taking a look at this thread, which discusses overclocking and undervolting settings. I have posted pics of my personal undervolting settings (page 15, post 150), however your device may differ. I discuss why and my suggested method to finding the best value's for your device in the same thread, post 152 on page 16. Of course the discussion has many other opinions and suggestions as well so try them out until you find the one that works best for you. One thing i didn't mention is to disable the cpu settings in the settings>rom control>performance menu as it will conflict with the settings in ktweaker and can actually drain the battery much faster than normal.

dntesinfrno said:
I'm running that setup and although i can't really compare my battery stats to your as i have a 4400mah battery, i can say that for my phone atleast the battery life is superb. I actually just plugged it in after 67 hours, with about 7 hours screen on time. Obviously this isn't going to happen on a stock battery (mine came with a 2100mah), you could realistically expect a little less than half these numbers. I would suggest taking a look at this thread, which discusses overclocking and undervolting settings. I have posted pics of my personal undervolting settings (page 15, post 150), however your device may differ. I discuss why and my suggested method to finding the best value's for your device in the same thread, post 152 on page 16. Of course the discussion has many other opinions and suggestions as well so try them out until you find the one that works best for you. One thing i didn't mention is to disable the cpu settings in the settings>rom control>performance menu as it will conflict with the settings in ktweaker and can actually drain the battery much faster than normal.
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Thanked*. Will take a look at the thread. Last time I undervolted I used some guys settings which were extremely wonky and cause a lot of mishaps. I'm still looking for good ones so I might try yours. Thanks.

DarthDerron said:
Thanked*. Will take a look at the thread. Last time I undervolted I used some guys settings which were extremely wonky and cause a lot of mishaps. I'm still looking for good ones so I might try yours. Thanks.
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Sounds like too much undervolt.

jethro650 said:
Sounds like too much undervolt.
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Just tried it, it was a little to much so I bumped everything up a little bit. Seems fine now. Going to flash AOKP later today.

Thats actually how i got those settings, i used what someone said was stable on theirs. It wasn't, playing pretty much any game on my phone would cause a reboot in less than 5 minutes. I think i ended up about 20 mv higher on all steps than his settings. You just have to find what works for you phone.

dntesinfrno said:
Thats actually how i got those settings, i used what someone said was stable on theirs. It wasn't, playing pretty much any game on my phone would cause a reboot in less than 5 minutes. I think i ended up about 20 mv higher on all steps than his settings. You just have to find what works for you phone.
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Indeed. I have AOKP with Ktoonsez/sio and voltage a little higher than yours. Works fine, battery is good.

I have recently switched to the noop scheduler after an article i read which basically said there is no need for a scheduler using flash memory. All the other schedulers are designed for physical hard drives which have seek times, flash does not. Using these schedulers actually creates an artificial seek time, thereby wasting cpu clock cycles and burning precious energy in the process.

dntesinfrno said:
I have recently switched to the noop scheduler after an article i read which basically said there is no need for a scheduler using flash memory. All the other schedulers are designed for physical hard drives which have seek times, flash does not. Using these schedulers actually creates an artificial seek time, thereby wasting cpu clock cycles and burning precious energy in the process.
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Was always on noop and ktoonservative. Most people recommend those two together

Boss-njo said:
That rom is no go.
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Care to elaborate?

Boss-njo said:
That rom is no go.
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I think its pretty good. I find it more stable than other roms, imo.

KT747/Cm10 m2
Hi,
I installed Cm10 m2, then ran it, rebooted, and installed kt747, cleared caches and fixed permissions, could not boot afterwards, Anyone else have this problem?

Mitch.sc said:
Hi,
I installed Cm10 m2, then ran it, rebooted, and installed kt747, cleared caches and fixed permissions, could not boot afterwards, Anyone else have this problem?
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Hmm, I've never had that problem with KT. Make sure you have correct version, AOSP JB. I would recommend flashing CM10.0.0, the latest CM10 stable build.