Develop Bugs

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
Click to expand...
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!

Time to give credit to Samsung.

I have to say I have tried EVERY ROM on the SGH-T989 and can say none are as stable and have the battery life to match the stock ROM.
I tried Darkside today. It is a clean ROM. Close to stock. I had two complete lockups on the phone that required battery removal in about a 6 hour period. I am not overclocking at all. The ROM has an underclock by default.
I just think it's time to give Samsung and the programmers there a thumbs up for doing such a great job on this phone.
It would be nice if they could release more of the header and source so the developers here could have a better chance of getting a stable ROM built...but until that happens I will just stay with a rooted and stock ROM.
Peace.

I've had no lockups or any problems in the 150 hour uptime I had with Juggernaut 5.0 with 009m faux's kernel.
Battery life is much better as well. Dropping down to 80% after 1 hour of display time.

Cool story bro

chlehqls said:
I've had no lockups or any problems in the 150 hour uptime I had with Juggernaut 5.0 with 009m faux's kernel.
Battery life is much better as well. Dropping down to 80% after 1 hour of display time.
Click to expand...
Click to collapse
I was on the stock ROM for 6 hours yesterday. Surfing, playing games, wifi enabled. Used a bit over 30% from a full charge.
I jumped right into custom ROM's when I got this phone. After going back to stock is when I realized how much the custom ROM's actually degrade the phone.
I have ran Jugg's 4.x with Faux kernel and Bullet kernels. Bullet was faster by a good bit. Battery sucker from hell though.
Do these phones really need the overclocks and tweaks? After going back to stock my opinion is no.
Peace.

You probably didnt follow the directions when installing any of the roms you tried.
If companies like samsung were as awesome as you say they are, would XDA exist at all in the 1st place?
Enjoy your bloatware.
Sent from my SGH-T989 using XDA App

ninrocket2 said:
I was on the stock ROM for 6 hours yesterday. Surfing, playing games, wifi enabled. Used a bit over 30% from a full charge.
I jumped right into custom ROM's when I got this phone. After going back to stock is when I realized how much the custom ROM's actually degrade the phone.
I have ran Jugg's 4.x with Faux kernel and Bullet kernels. Bullet was faster by a good bit. Battery sucker from hell though.
Do these phones really need the overclocks and tweaks? After going back to stock my opinion is no.
Peace.
Click to expand...
Click to collapse
Battery proof? Heres mine with Darkside:
http://db.tt/Dndk1SLW
http://db.tt/qxYSJxJv
http://db.tt/AydX5Jxx
Sent from my SGH-T989 using xda premium

Me being the analytical type....and to just keep this topic fact filled and useful will create a test bed to compare the 'popular' roms versus stock.
I will create a post in the next week to share the results.
Peace.

ninrocket2 said:
Me being the analytical type....and to just keep this topic fact filled and useful will create a test bed to compare the 'popular' roms versus stock.
I will create a post in the next week to share the results.
Peace.
Click to expand...
Click to collapse
Theres already a thread for that:
forum.xda-developers.com/showthread.php?t=1524569
Sent from my SGH-T989 using XDA App

jordanishere said:
You probably didnt follow the directions when installing any of the roms you tried.
If companies like samsung were as awesome as you say they are, would XDA exist at all in the 1st place?
Enjoy your bloatware.
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
Keep it civil and to the point. Don't attack my character by implying that I don't know how to follow directions and flash a ROM. I have been a member on XDA since the first year....much longer than you.
I don't have a problem with bloatware. I use a stock ROOTED ROM and remove the bloatware. Very easy to test and then delete bloatware using Titanium Backup.
XDA got it's start back when the CPU and chipsets on phones were very slow. Over time the new phones have become handheld computers. The processing speed is much faster.
In the beginning the OS's were in the infantile stages as well. They have all improved dramatically.
I remember when a flash on something like the HTC Tytan made a huge difference. You were getting the GPS and FM Radio Unlocked. The bloatware was removed in the ROM(Windows based...no ROOT access). It made a huge difference in the performance of the phone and unlocked a lot of features.
This isn't the case with the new phones. There really is nothing being added to the ROM's that can't be added via the market or removed using Titanium Backup.
What I have seen with every ROM is intermittent lockups that require battery removal and excessive battery consumption probably from the aggressive timings that aren't necessary.
Peace.

ninrocket2 said:
Keep it civil and to the point. Don't attack my character by implying that I don't know how to follow directions and flash a ROM. I have been a member on XDA since the first year....much longer than you.
I don't have a problem with bloatware. I use a stock ROOTED ROM and remove the bloatware. Very easy to test and then delete bloatware using Titanium Backup.
XDA got it's start back when the CPU and chipsets on phones were very slow. Over time the new phones have become handheld computers. The processing speed is much faster.
In the beginning the OS's were in the infantile stages as well. They have all improved dramatically.
I remember when a flash on something like the HTC Tytan made a huge difference. You were getting the GPS and FM Radio Unlocked. The bloatware was removed in the ROM(Windows based...no ROOT access). It made a huge difference in the performance of the phone and unlocked a lot of features.
This isn't the case with the new phones. There really is nothing being added to the ROM's that can't be added via the market or removed using Titanium Backup.
What I have seen with every ROM is intermittent lockups that require battery removal and excessive battery consumption probably from the aggressive timings that aren't necessary.
Peace.
Click to expand...
Click to collapse
I look forward to your battery testing!
Please include multiple kernels as you test various ROMs, especially faux and Synergy
And perhaps install Juice Defender as a best case.
Personally I haven't experienced any lockups with the two custom T989 ROMs I've tested, but have benefited from the improved battery life dramatically. I'd still love to see a more controlled experiment, however.

jordanishere said:
Theres already a thread for that:
forum.xda-developers.com/showthread.php?t=1524569
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
Read it. It is basically a generic thread. No stats or true testing methods just some user comments.
I want to actually test the phone in real life conditions. Watch some vids, talk on the phone, skype/gtalk/YM video call...etc. Actually run consecutive tests across the best ROMS and stock and see how they match up.
Benchmarking is a bit ridiculous....in several aspects.
If a game runs 30 fps or greater...you won't see the difference.
If a game runs a stable 30 fps versus a ROM that peaks at 50 but valleys at 15....you will definitely see the difference.
If a ROM runs 50 fps versus 30 and both are stable...you won't see the difference. The question then is which one uses less battery. The obvious answer is the one running 30fps. Less frames means less redraws and less CPU and GPU.
I just want to once an for all be able to definitively say what each ROM is really doing to the phone with graphs.
Not hard to do. Just takes a real world test model and some time. I think I can test one ROM a day. I will test the most popular ROM's....Juggs, Beast, Darkside, Bombardier, Gingersnap, etc... I have tested them all. I know which ones are legit and which ones aren't.
Peace

ninrocket2 said:
Keep it civil and to the point. Don't attack my character by implying that I don't know how to follow directions and flash a ROM. I have been a member on XDA since the first year....much longer than you.
I don't have a problem with bloatware. I use a stock ROOTED ROM and remove the bloatware. Very easy to test and then delete bloatware using Titanium Backup.
XDA got it's start back when the CPU and chipsets on phones were very slow. Over time the new phones have become handheld computers. The processing speed is much faster.
In the beginning the OS's were in the infantile stages as well. They have all improved dramatically.
I remember when a flash on something like the HTC Tytan made a huge difference. You were getting the GPS and FM Radio Unlocked. The bloatware was removed in the ROM(Windows based...no ROOT access). It made a huge difference in the performance of the phone and unlocked a lot of features.
This isn't the case with the new phones. There really is nothing being added to the ROM's that can't be added via the market or removed using Titanium Backup.
What I have seen with every ROM is intermittent lockups that require battery removal and excessive battery consumption probably from the aggressive timings that aren't necessary.
Peace.
Click to expand...
Click to collapse
Agree 100%
Nothing has performed better than stock 2.3.6, rooted and debloated.
Sent from my T989 hunting for Siri Connor

I run Juggernaut 5, ADW launcher, AOSP ICS themed, with Darkside's latest kernel (extracted it from Darkside ROM pakage), and I've had amazing battery life, OC'd to 1.83ghz with ondemand governor.
And IMO Touchwiz is ugly, samsung tries too hard to make all their stuff look like the iPhone. They do a crappy job of it and it ends up being a dissapointment.
I think any small degradation of battery life is worth the noticable boost in snappiness and cosmetics of the phone. I personally couldn't stand the stock phone, as soon as I could I flashed something different.

zander21510 said:
I run Juggernaut 5, ADW launcher, AOSP ICS themed, with Darkside's latest kernel (extracted it from Darkside ROM pakage), and I've had amazing battery life, OC'd to 1.83ghz with ondemand governor.
And IMO Touchwiz is ugly, samsung tries too hard to make all their stuff look like the iPhone. They do a crappy job of it and it ends up being a dissapointment.
I think any small degradation of battery life is worth the noticable boost in snappiness and cosmetics of the phone. I personally couldn't stand the stock phone, as soon as I could I flashed something different.
Click to expand...
Click to collapse
Strictly aesthetics can be achieved through the use of different launchers/lockscreens. The point of ROMs/Kernels need to be more than aesthetics. Hence, "some" of the ROMs offered [strictly speaking] are a pretty big disappointment because they're nothing more than themed stuff baked in and offer no real functionality.
I'm REALLY interested in a controlled experiment of battery claims of different ROMs/kernels. Preferably all at stock speeds.

djxcee said:
Battery proof? Heres mine with Darkside:
http://db.tt/Dndk1SLW
http://db.tt/qxYSJxJv
http://db.tt/AydX5Jxx
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Sorry but there is absolutely NO proof in these pictures.
I can see that your phone was on battery for a bit over 1 day.
I can also see that 45% of your phones battery usage was the display...and that the display was on for a bit over 7 hours.
What I don't know is what was your screen brightness set at?
Does the display percentage represent JUST the LED power for the screen or does it also include the GPU/CPU driving the display?
Where are the numbers for the stock ROM?
Those numbers mean nothing when you don't have a standardized test bed and procedure.
Peace.

zander21510 said:
I run Juggernaut 5, ADW launcher, AOSP ICS themed, with Darkside's latest kernel (extracted it from Darkside ROM pakage), and I've had amazing battery life, OC'd to 1.83ghz with ondemand governor.
And IMO Touchwiz is ugly, samsung tries too hard to make all their stuff look like the iPhone. They do a crappy job of it and it ends up being a dissapointment.
I think any small degradation of battery life is worth the noticable boost in snappiness and cosmetics of the phone. I personally couldn't stand the stock phone, as soon as I could I flashed something different.
Click to expand...
Click to collapse
You can use a home launcher on the stock debloated ROM and get the same results with more stability and better battery life.
I recommend you check DXHOME out to see a smooth launcher.
Peace.

ninrocket2 said:
Sorry but there is absolutely NO proof in these pictures.
I can see that your phone was on battery for a bit over 1 day.
I can also see that 45% of your phones battery usage was the display...and that the display was on for a bit over 7 hours.
What I don't know is what was your screen brightness set at?
Does the display percentage represent JUST the LED power for the screen or does it also include the GPU/CPU driving the display?
Where are the numbers for the stock ROM?
Those numbers mean nothing when you don't have a standardized test bed and procedure.
Peace.
Click to expand...
Click to collapse
Actually, unless that test was completely skewed (e.g. screen on displaying black screen), 7 hours of screen on time + 20 odd hours of standby time with use of radios/connectivity is very very impressive.

2hvy4grvty said:
Strictly aesthetics can be achieved through the use of different launchers/lockscreens. The point of ROMs/Kernels need to be more than aesthetics. Hence, "some" of the ROMs offered [strictly speaking] are a pretty big disappointment because they're nothing more than themed stuff baked in and offer no real functionality.
I'm REALLY interested in a controlled experiment of battery claims of different ROMs/kernels. Preferably all at stock speeds.
Click to expand...
Click to collapse
I agree with your first paragraph 100% and will get the experiment underway with Stock speeds.
Peace.

2hvy4grvty said:
Actually, unless that test was completely skewed (e.g. screen on displaying black screen), 7 hours of screen on time + 20 odd hours of standby time with use of radios/connectivity is very very impressive.
Click to expand...
Click to collapse
When you can refer us to pictures of a base ROM with the same parameters and settings for comparison then I might say it is impressive. But with no base ROM data it is purely speculation.
Peace.

enjoy the drm laden ciq enabled features... That cannot be removed by titanium unless it can magically decompile recompile frameworks on the fly...
Enjoy the Memeroy leaked jobsmanager....
Anyways now thats oout of the way
How much time did you spend between stock firmwares and custom firmwares?
Did you fully wipe the device before flashing and after
Did you do dirty nanoid restores?
A little more info woud be helpfull
at the end of the day if you enjoy stock more great for you.... Use it n move on...
Still missing the point of this thread on a dev website unless you like being trolled.

Why do I get horrible battery life with ROMS and Kernels?

I've used cm9 and aokp the past month and tried the stock Kernels that come with it and Franco's. One thing is for certain. No matter combination I get horrible battery life. If I run stock android with my extended battery including various Widgets I get 24 hours battery life pretty easily. Moderate usage and some heavy usage. With cm9 I'm getting maybe 15-16 hrs with aokp maybe 8-9 hers and I'm using Franco's kernel right now. I don't understand this. People talk about how much better the battery life is with various ROMS than stock but I'm not getting it. I'm getting like half the battery life I was before. Any ideas?
Sent from my Galaxy Nexus using Tapatalk 2

I can relate to you. Was in CM9 and Franko's kernel and as you said, horrible battery life. I went back to stock but this time I did not install apps thar would require services running (well I have to run WhatsApp so that's the only one running besides default abdroid services).
I am seeing better battery life this way.
The next step would be to install CM9 and restore all my apps to see if I can replicate the same battery life.
Sent from my Galaxy Nexus using Tapatalk 2

you need to find out what apps are keeping your phone from sleeping dude its not the ROM or Kernel if you want to find out you can use better battery stats or just read the permissions on your apps otherwise its probably cause your on your phone too much with the screen on first show use a usage screen shot then how many apps you have we can narrow it down

dislplin01 said:
you need to find out what apps are keeping your phone from sleeping dude its not the ROM or Kernel if you want to find out you can use better battery stats or just read the permissions on your apps otherwise its probably cause your on your phone too much with the screen on first show use a usage screen shot then how many apps you have we can narrow it down
Click to expand...
Click to collapse
^This, and how much on screen time are you getting?

Ngo93 said:
^This, and how much on screen time are you getting?
Click to expand...
Click to collapse
I'm getting about 1.5 hrs screen time. With stock in was getting 2-3hrs. As far as apps keeping my phone from sleeping. I'm running the same apps I run on stock android when I was getting a full day on average so not sure how they would run different because I'm on a ROM.
Sent from my Galaxy Nexus using Tapatalk 2

get better Battery stats app... And check for partial wakelocks...
I had exactly same problem... And on stock no problems
But now... Franco m4 + aokp b37
And 3 to 3.5 hours screen
Sent from my Galaxy Nexus using XDA

I used that better battery stats app and apparently there was audio something (sorry can't remember the exact words) causing partial wakelocks, read some google search results and disabled the lock screen sound in aokp and it went away, go figure?
I swear my battery life is better with the kernel that comes with AOKP rather than franco, which was a bummer since I'd just bought the franco updater app, perhaps just my imagination or maybe something just needs to be tweaked

Well, this has pretty much nothing to do with the ROMs/kernels, you flash to the device. If you use the device for heavy gaming, you use loads of apps etc. the battery life will obviously be bad, because the CPU needs the according CPU clock speed...
Underclock the CPU, or better: Get AnTuTu CPU Master pro, and set the profiles, underclock screen off, to 700 MHz, and every other proile, where you do not neccessarily need the device to that speed, not below, otherwise it will just crash... That way you have the best battery life, for your usage, so basically, every time you switch the device's screen off, it will save a hell of a load of battery

Under clocking doesn't do much for battery life contrary to popular belief. It just increases the time it takes to process a task. It might take 1s at 1.2ghz vs 1.8s at 800ghz to complete a given task for example. So yes the cpu will run at lower speed and voltage but it still also take longer to return to idle.
Sent from my GNex

dr.m0x said:
Under clocking doesn't do much for battery life contrary to popular belief. It just increases the time it takes to process a task. It might take 1s at 1.2ghz vs 1.8s at 800ghz to complete a given task for example. So yes the cpu will run at lower speed and voltage but it still also take longer to return to idle.
Sent from my GNex
Click to expand...
Click to collapse
Well, I don't really mean to break this, because it is right, but not completely...
Underclocking & undervolting, when the device is not in use (Screen off) saves loads of battery...
And because it's a dual-core, it takes mostly just as long to open an app at 700 MHz, as when you're doing it at stock clock speed, or voltage or higher.. So, in that case...

familyguy59 said:
Well, this has pretty much nothing to do with the ROMs/kernels, you flash to the device. If you use the device for heavy gaming, you use loads of apps etc. the battery life will obviously be bad, because the CPU needs the according CPU clock speed...
Underclock the CPU, or better: Get AnTuTu CPU Master pro, and set the profiles, underclock screen off, to 700 MHz, and every other proile, where you do not neccessarily need the device to that speed, not below, otherwise it will just crash... That way you have the best battery life, for your usage, so basically, every time you switch the device's screen off, it will save a hell of a load of battery
Click to expand...
Click to collapse
Not sure how this wouldn't have to do with the different ROMS and kernels since I stated what battery life I was getting with stock vs using a custom kernel and ROMS. I'm giving a comparison of my battery on each with the same usasge and they are different.
Sent from my Galaxy Nexus using Tapatalk 2

0kk0 said:
get better Battery stats app... And check for partial wakelocks...
I had exactly same problem... And on stock no problems
But now... Franco m4 + aokp b37
And 3 to 3.5 hours screen
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Thank you! I will look into this!
Sent from my Galaxy Nexus using Tapatalk 2

azlemad said:
I used that better battery stats app and apparently there was audio something (sorry can't remember the exact words) causing partial wakelocks, read some google search results and disabled the lock screen sound in aokp and it went away, go figure?
I swear my battery life is better with the kernel that comes with AOKP rather than franco, which was a bummer since I'd just bought the franco updater app, perhaps just my imagination or maybe something just needs to be tweaked
Click to expand...
Click to collapse
I will look into this as well! Thanks!
Sent from my Galaxy Nexus using Tapatalk 2

Okay so today I tried MIUI. The battery life blows stock android, aokp and cm9 away. I had over 3hrs of screen time today. Night and day compared to cm9 and aokp. I really don't get this.
Sent from my Galaxy Nexus using Tapatalk 2

What is best Rom and kernel combination focus on heating and battery life?

Hello everyone.
I am looking for a relative best rom and kernel combination for daily use which focus on heating and battery life.
I’ve tried AOKP38 with franco185 and did't change the setting of CPU model. The temperature raised to almost 50 degree. I only open the instrgram and twitter for 10min.
I also tried the slim4.0. The heating is much better than B38 with franco. But battery life seems not good.
Wound you mind recommending the best rom and kernel combination you have ever used?
Thanks! Sorry for my bad English.

I too will like to know. I will be watching this thread very closely.

After browsing through many threads where talk regarding heating issues take place, I'd say underclocking are undervolting are your best bet.
If you don't play any 3D games or do anything that requires some real juice from your CPU, I'd say you'd be fine with underclocking to like 1036 MHz and maybe do some slight undervolting.
If you only want do to the underclocking part, and if you got heating issues with Franco, then try Morfic's trinity kernel.

Grrr_23 said:
Hello everyone.
I am looking for a relative best rom and kernel combination for daily use which focus on heating and battery life.
I’ve tried AOKP38 with franco185 and did't change the setting of CPU model. The temperature raised to almost 50 degree. I only open the instrgram and twitter for 10min.
I also tried the slim4.0. The heating is much better than B38 with franco. But battery life seems not good.
Wound you mind recommending the best rom and kernel combination you have ever used?
Thanks! Sorry for my bad English.
Click to expand...
Click to collapse
185 seems to have quite a few problems (see Franco's thread). I jumped ship onto the 181 kernel - wireless tethering (encrypted) works, the GPU is fast enough, and it doesn't seem to overheat. I don't use the kernel for benchmarking (although..... ) but rather, to improve the GPU performance.
And I'm on stock ICS, not AOKP.

Theshawty said:
After browsing through many threads where talk regarding heating issues take place, I'd say underclocking are undervolting are your best bet.
If you don't play any 3D games or do anything that requires some real juice from your CPU, I'd say you'd be fine with underclocking to like 1036 MHz and maybe do some slight undervolting.
If you only want do to the underclocking part, and if you got heating issues with Franco, then try Morfic's trinity kernel.
Click to expand...
Click to collapse
I only pay the Temple run sometimes. Does this game require a high CPU?
And how about the battery life on your nexus? The screen on time? 2H?

aeoveu said:
185 seems to have quite a few problems (see Franco's thread). I jumped ship onto the 181 kernel - wireless tethering (encrypted) works, the GPU is fast enough, and it doesn't seem to overheat. I don't use the kernel for benchmarking (although..... ) but rather, to improve the GPU performance.
And I'm on stock ICS, not AOKP.
Click to expand...
Click to collapse
How about the battery life on stock ICS？

I changed the franco nightly to milestone4 and now heating is gone, even play Modern Combat 3 us no problem. AOKP with milestone 4 is best for me bro! ;-)
Sent from my GT-N7000 using xda premium

Grrr_23 said:
I only pay the Temple run sometimes. Does this game require a high CPU?
And how about the battery life on your nexus? The screen on time? 2H?
Click to expand...
Click to collapse
I've been underclocked to 1036MHz for a while now and I've never had and problems running any games. NOVA 3 and similar games runs great. The only issues I've had are when I get a call or SMS. Then my phone starts to lag, but eventually picks itself back up.

Every device is different. What works great for someone probably won't work great for you. You have to try them all to see what suites your phone the best.

There are already many threads discussing this, please use an already established thread instead of creating a new one.
Thread closed.

[Q] Battery Life?

Hey there XDA, got a question for ya.
I've had my AT&T S3 for a while now and I love the phone a lot, the only thing that is plaguing me is the battery life.
Now for a phone with dual core processors, a nice Super AMOLED screen that runs at 720, all the connections that you'd ever want, I expect it to use some battery life, but I feel like I should be doing better than I should.
When I'm browsing the internet or reddit I can watch the percentage just slowly crawl down. Within 30 min or so I've gone through 7-8% I want to say. Not 100% sure, but the numbers have been enough to make me concerned.
Currently I am running Diet ICS 08.08.12 with no major modifications other than the apps I use and Apex Launcher.
I've got my BetterBatteryStats dump and a screenshots of the battery page from System from last night. I'm attempting to use Juice Defender today (I've tried it in the past and it did alright) as well as Samgsung's battery saving mode (which seems to prevent the processor from going over 1.0 Ghz), which as of right now I'm at 36%. I feel like I can do better than that
So, thoughts? Opinions?

What kernel are you running?

mdg071191 said:
What kernel are you running?
Click to expand...
Click to collapse
I don't think Diet ICS swapped kernels, so stock as far as I'm concerned.

Alright. For stock kernel (I'm not too sure about with power saving), those numbers are fairly decent. I was able to get some better numbers on faux123's TW kernel (the 1.65ghz, not 1.85), but I can't be too sure of the exact time, as I'm currently on 1.85ghz OC, and I charge my phone nightly. You could try other kernels, and just roll back with a nandroid to this one if you do not like the difference.