Database Users

is it me, or are 2.2 ROM's battery hogs?

I have tried both Eugene's and TeamWhiskey's ROM's.. Ginger Clone, OBSIDAN and ONYX. And all 3 have sucked down my battery in about 12 hours flat with me doing nothing to the phone but loading SystemPanel to monitor the CPU and battery. With all the ROM's the CPU usage has been between 3-10% while in idle. zero phone usage. I have refreshed the battery with every new ROM load.
I was previously using TeamWhiskey's 2.1 Bionix Fusion and was seeing between 1-3% CPU usage at idle and had the battery lasting well over 24 hours with minimal use(checking email, couple short phone calls)
Am I the only one having this issue?? Does anyone else use SystemPanel to monitor their CPU usage and can say what their CPU is using during idle??
Thank you for your time and any help/info you may have.

I don't use the modded versions of Froyo but Stock has awesome battery life from my experience. JL5 is looking great as well.

You or anyone else happen to know where I can find a copy of the stock 2.2 ROM/kernel?? I have an unlocked phone in Japan and it's not supported here, so I wont ever get any updates.

Yes the custom roms have terrible battery life. They always have. However, the stock roms have terrific battery life. After a long day of heavy usage I am at 50%
Sent from my SGH-T959 using XDA App

There isn't really a stock 2.2 Rom for Vibrant because it hasn't been released yet. We have leaked builds (JK2, JK6, JL1, JL4, JL5) that are candidates for release. When they actually release Froyo for Vibrant, that will be your stock froyo rom.

The key to great battery life is using the Stock kernel. Flash that kernel on any ROM and enjoy not having to watch your battery indicator all day.

yea, just read a thread about people complaining about that.
guess I'll just flash back to 2.1..
Thanks for all the help.

I flashed nero v2 w/ voodoo and i reset the battery stats, and now im having trouble draining the battery down to nothing.
Fear the beard...

regP said:
The key to great battery life is using the Stock kernel. Flash that kernel on any ROM and enjoy not having to watch your battery indicator all day.
Click to expand...
Click to collapse
Pretty sure I have flashed the stock kernel.. is there any way to tell what kernel im on? phone just says 2.6.32.9

jayprime said:
I flashed nero v2 w/ voodoo and i reset the battery stats, and now im having trouble draining the battery down to nothing.
Fear the beard...
Click to expand...
Click to collapse
I'll give it a try.. nothing to lose.

To drain the battery, I usually turn on Bluetooth, Wifi, GPS, all the good stuff. Then I downloaded this one Flashlight app from the Market which essentially displays one color full screen, default white. Crank up the brightness and run that app on white and it'll really put the hurt on your battery.
Edit: Today I learned that this may be potentially harmful information. Will someone give a good scientific explanation why though? I'm curious to learn more about batteries. However, this is how I've been draining my battery and it is a damn good method if that's what you want done.

Mine says 2.6.32.9 no matter what kernel i flash. Try flashing it just to be sure. I've tried all the ROMs and they all drain hard until I add the stock kernel to them. Though now a days a lot of ROMs include the stock kernel (Macnut and Axura for sure do). The problem with all the custom kernels is they dont seem to let the phone sleep so when your screen turns off the phone keeps draining as if you were using it. Stock fixes this so when your screen turns off barely any power is used. I
But like I said.. reflash it just to be sure.

regP said:
Mine says 2.6.32.9 no matter what kernel i flash. Try flashing it just to be sure. I've tried all the ROMs and they all drain hard until I add the stock kernel to them. Though now a days a lot of ROMs include the stock kernel (Macnut and Axura for sure do). The problem with all the custom kernels is they dont seem to let the phone sleep so when your screen turns off the phone keeps draining as if you were using it. Stock fixes this so when your screen turns off barely any power is used. I
But like I said.. reflash it just to be sure.
Click to expand...
Click to collapse
You happen to have a link to the stock kernel??

EB-Productions Stock Kernel MOD
*Features*
~ Clock Work Recovery
~ Leaked Stock Kernel
Download > http://www.multiupload.com/ELZHKISZTF
Click to expand...
Click to collapse
Taken from Eugene's site.

to the OP, try axura rom. i have tried all the TW, eugene and axura. axuras the only one who gives me a good batt life
Sent from my SGH-T959 using XDA App

Thats because Axura uses the stock kernel

FDokinawa said:
Pretty sure I have flashed the stock kernel.. is there any way to tell what kernel im on? phone just says 2.6.32.9
Click to expand...
Click to collapse
Android is based on Linux and uses the Linux kernel as a base. The Linux kernel your phone's kernel is based off of is version 2.6.32.9

ok.. think I loaded the stock kernel up.. lol I'll let it run for about an hour and see what kind of CPU numbers I get in idle.
Thanks again for everyones help/input.
FYI.. just put it in flight mode for a bit and CPU usage dropped down to almost 0%.. I'm not understanding why it cant do that when the phone is idle.. ahh well.

Idle for an hour should lose no more than 1% battery depending on how much stuff you have polling and updating.

regP said:
Thats because Axura uses the stock kernel
Click to expand...
Click to collapse
No it doesn't.
regP said:
Mine says 2.6.32.9 no matter what kernel i flash.
Click to expand...
Click to collapse
That is just the version.
That version won't change like the baseband does.

Using CM7? You must read this! (Correct post)

Ok guys. I have to admit, I was about to give up on CM7 due to battery issues and what seemed to be memory leaks progressively making my phone lag more and more throughout the day. I have found something some of you may not be aware of and I wanted to share this amazingly helpful kernel with you.
Using x99, Scary, and stock kernels regardless of governor I seemed to maybe get 8 hours of battery life with moderate to heavy use. I am proud to say, using bcnice20's kernel I have had my phone on for 9 hours with 60% battery life today. This is incredible, even with lighter use on the other kernels I had NOWHERE near this amount of battery left.
Most of you may not have seen this kernel because it isn't posted. (as far as im aware) Let me help you out. First, go into your Market and download Kernel Manager. There is a lite version in there that is free. If you have an extra buck or two donate to the developer for making a neat app where you can download kernels in a convenient place by downloading the pro version.
What you will be downloading is called bcblend SIO tinyRCU kernel. I have not tried VR tinyRCU kernel yet. Not sure what the differences are, if someone could elaborate that'd be appreciated.
Regardless, I find the sweet spot for this to be at 245MHz min and 1GHz max on Interactive governor to work really well. The phone does not seem to get laggier throughout the day and consistently performs well, snappy, and just way better than the other kernels. (No offense to x99 and Scary, I appreciate all you've done!)
Give it a try and let me know if you all have similar results! I have heard that AOSP gets less battery than Sense ROMs from people on this very forum, and this may be the kernel to put that little debate to rest.
Oh, and be sure you have the latest CM7. I am on 7.0.2.1 trying this out.

Thanks ima try this out
Sent from my PG06100 using Tapatalk

+1
I've been flashing too much to test out battery life but bc's kernel is just like melted garlic butter smooth. At 768mhz max my Shift still hums along like it's OC'd
^ Shift Faced

jesusice said:
+1
I've been flashing too much to test out battery life but bc's kernel is just like melted garlic butter smooth. At 768mhz max my Shift still hums along like it's OC'd
^ Shift Faced
Click to expand...
Click to collapse
I owe it to you for having me download kernel manager.

Well with CM7 and the x99 kernal seems to give me the best battery life with the SMARTASS governor. About 20 hours with medium to heavy use.

Link?
Sent from my EVO Shift 4G powered by CM7

koolkid09 said:
Link?
Sent from my EVO Shift 4G powered by CM7
Click to expand...
Click to collapse
There is no link at this point, you have to do it via kernel manager. I'd upload it but I don't want to without bc's permission.

I haven't use any other "controllers" other than the one built into cm7... can I use that or is there a prefered one to change governers and such. Thanks!
Sent from my PG06100 using XDA Premium App

lilgrass71 said:
I haven't use any other "controllers" other than the one built into cm7... can I use that or is there a prefered one to change governers and such. Thanks!
Sent from my PG06100 using XDA Premium App
Click to expand...
Click to collapse
Since CM7 lets you change governors right in its settings I uninstalled SetCPU for now, in theory I would think it would cause more battery drain but I don't know for sure. But yes I just changed it right in CM7. I changed the governor to interactive and set the max cpu frequency to 1036MHz.

Gonna try this out. I love CM7 but the battery is killing me. I pray this works.

Android system & cell standby seem to be the battery use culprit. I will give this a try though but don't really think its in the kernel. Ill report back...
Sent from my PG06100 using XDA App

This kernel seems to be really good about not sucking the battery while on standby for me, that seems to be the crown jewel of it all. Right Now I am at 14 hours off the charger with 29% left.. remember I was lucky to get 8 hours most days before using this kernel.

This is off-topic, but along the same lines: which kernels gave the best battery life for Sense?

+1 OP was right I flashed this kernel and so far so good on battery life
Sent from my PG06100 using Tapatalk

c00ller said:
This is off-topic, but along the same lines: which kernels gave the best battery life for Sense?
Click to expand...
Click to collapse
Honestly I didn't get much difference between x99 and bcnice20's 1.5GHz kernel so either of those two. Scarykernel SUV works well on Sense if your phone can boot it too.

fifedogg said:
Android system & cell standby seem to be the battery use culprit. I will give this a try though but don't really think its in the kernel. Ill report back...
Sent from my PG06100 using XDA App
Click to expand...
Click to collapse
It seems to be true. I'm def getting better battery life. I also calibrated my battery but I've done that before without any major change. So far I have 5 hours of quite a bit of use and I'm at 71% I would normally be around 55-60% by now. I wonder what the main difference is with the kernel...

PaulB007 said:
Ok guys. I have to admit, I was about to give up on CM7 due to battery issues and what seemed to be memory leaks progressively making my phone lag more and more throughout the day. I have found something some of you may not be aware of and I wanted to share this amazingly helpful kernel with you.
Using x99, Scary, and stock kernels regardless of governor I seemed to maybe get 8 hours of battery life with moderate to heavy use. I am proud to say, using bcnice20's kernel I have had my phone on for 9 hours with 60% battery life today. This is incredible, even with lighter use on the other kernels I had NOWHERE near this amount of battery left.
Most of you may not have seen this kernel because it isn't posted. (as far as im aware) Let me help you out. First, go into your Market and download Kernel Manager. There is a lite version in there that is free. If you have an extra buck or two donate to the developer for making a neat app where you can download kernels in a convenient place by downloading the pro version.
What you will be downloading is called bcblend SIO tinyRCU kernel. I have not tried VR tinyRCU kernel yet. Not sure what the differences are, if someone could elaborate that'd be appreciated.
Regardless, I find the sweet spot for this to be at 245MHz min and 1GHz max on Interactive governor to work really well. The phone does not seem to get laggier throughout the day and consistently performs well, snappy, and just way better than the other kernels. (No offense to x99 and Scary, I appreciate all you've done!)
Give it a try and let me know if you all have similar results! I have heard that AOSP gets less battery than Sense ROMs from people on this very forum, and this may be the kernel to put that little debate to rest.
Oh, and be sure you have the latest CM7. I am on 7.0.2.1 trying this out.
Click to expand...
Click to collapse
I have been using the x99 kernal and i have about 1 d and 12 hrs with about 45 % left.. I also have the calibrator apk from the market so it wipes the battery stat when im at 100%. and various other apps that deal with the speed of the sd card and what nots. So, me coming from the Hero is very happy with this phone...
Thank you for sharing your findings... THIS IS SO AWESOME !!!!!

CrashV2010 said:
I have been using the x99 kernal and i have about 1 d and 12 hrs with about 45 % left.. I also have the calibrator apk from the market so it wipes the battery stat when im at 100%. and various other apps that deal with the speed of the sd card and what nots. So, me coming from the Hero is very happy with this phone...
Thank you for sharing your findings... THIS IS SO AWESOME !!!!!
Click to expand...
Click to collapse
Holy crap that is good battery, how often are you using the phone?

Thanks PaulB007. Followed your suggestion and my battery life has DRASTICALLY improved!

PaulB007 said:
Holy crap that is good battery, how often are you using the phone?
Click to expand...
Click to collapse
Medium use.
On my Gingerbreaded Evo-Shifted Premium XDA App.

tiamat vs IR vs wildmonk vs pershoot

i dont think this has been asked
which kernel works best with cyanogen stable? i mean overall performance, camera, touchscreen, battery and all..
i know different kernels work differently for everyone but id like to know what everyone is using

Pershoots's latest is working great for me. Using nightlies
Sent from my Nexus One using XDA App

grimey01 said:
i dont think this has been asked
which kernel works best with cyanogen stable? i mean overall performance, camera, touchscreen, battery and all..
i know different kernels work differently for everyone but id like to know what everyone is using
Click to expand...
Click to collapse
I use IR when I run CM7 and Tiamat when I run MIUI.

tried tiamat, IR all works well, CM7 stock kernal + ss4n1 -screenstate (http://forum.xda-developers.com/showthread.php?t=1090800).
and now back to CM7 Nightlies stock kernal overclocked to 1113mhz, Performance governor.
Stable and decent battery life (1 full day average use)
between the three, i will go for tiamat

They're all excellent. I've never used IR before so can't comment on that. I used wildmonks while on CM6 plus. Since CM7, I tried pershoot and tiamat. I like them both for supporting undervoltage.
Edit: oops. I put the wrong kernels that support undervoltage mod. They're actually tiamat and IR.
Sent from my Xoom using XDA Premium App

pershoot runs rock solid and with an excellent battery usage. I had some problems with iR's latest, but maybe it was just my fault.
If i understood right, iR and WM are based on pershoot kernels. Anyway, I can't expect a better performance/battery life than with pershoots.
BTW:
Does someone know, which is the lowest voltage of the newest pershoot?

i think im sticking with wildmonks for now.. its giving me a decent battery life..
the other three dont work too well on my phone with cm7 nightly.
undervolting will save battery but reduce performace right?

grimey01 said:
i think im sticking with wildmonks for now.. its giving me a decent battery life..
the other three dont work too well on my phone with cm7 nightly.
undervolting will save battery but reduce performace right?
Click to expand...
Click to collapse
Just a question, how decent are you talking about ??
more than 2 days ??
So far I never could get more than 2 days with minimum usage and wifi /bluetooth/gps off

firas1886 said:
Just a question, how decent are you talking about ??
more than 2 days ??
So far I never could get more than 2 days with minimum usage and wifi /bluetooth/gps off
Click to expand...
Click to collapse
wm's 06/24/2011 release with #111 nightly
using savagedzen 245-1034 or something like that
i get a full day and a half if i use it occasionally.. it lasts atleast a full day for me which is good enough

Best Battery Life..

Hi, let me first say sorry for this post. I know there are a million..
I do not have a Inc but my daughter does, last time I messed with it, I put CM7 rc3 on it right when rc3 was released. ever since then I have not read one word on the development of this phone. The phone runs good but battery life could be better.
Is there anything better than CM7? looking for the best battery life possible. Please suggest ROM/Kernel. sense or senseless.
Thanks,

Coming from an avid user of Sense I would say CM7, MIUI, and OMGB or OMFGB are the "best" with battery as they are stripped of Sense. If you don't get good battery life with any of those AOSP roms, kernel combo or not, there isn't much more anyone can do.
I only use Sense roms but I know if battery life & Senseless were my thing, I would have an AOSP rom. Not sure on kernels, the crowd can fill you in on their experience.

Best bet would be to flash incredikernel, and then dl incredicontrol from the market. Stick with cm7, use the underclocking app of your choice, and then use incredicontrol to lower the voltages at different frequencies...if it reboots, go one back until its stable.

baboonsRus said:
Best bet would be to flash incredikernel, and then dl incredicontrol from the market. Stick with cm7, use the underclocking app of your choice, and then use incredicontrol to lower the voltages at different frequencies...if it reboots, go one back until its stable.
Click to expand...
Click to collapse
There's still other options like upgrading to a 1900mAh battery (still fits in stock casing)

POQbum said:
There's still other options like upgrading to a 1900mAh battery (still fits in stock casing)
Click to expand...
Click to collapse
That's what I did, lasts me all the way through the day now lol. Its a snug fit, but it fits.
Sent from my Droid Incredible running some random CM7 nightly.

I would suggest flashing the newest CM nightly. There have been some changes and kernel tweaks since rc3.
I'm on 10 1/2 hours sitting at 70%, albeit light use, but still I usually get at least a day and a half with moderate use.

I'm a big fan of Jermaine's In-Sensitive Minimalist ROM. It has by far been the fastest and best on battery life for me.

I'm on the latest cm nightly. I use incrediblekernel with aggressive voltage. I have CPU set to 128 min and 664 Max. I could last all day plus with moderate to heavy usage.
Sent from my ADR6300 using xda premium

paboater76 said:
Hi, let me first say sorry for this post. I know there are a million..
I do not have a Inc but my daughter does, last time I messed with it, I put CM7 rc3 on it right when rc3 was released. ever since then I have not read one word on the development of this phone. The phone runs good but battery life could be better.
Is there anything better than CM7? looking for the best battery life possible. Please suggest ROM/Kernel. sense or senseless.
Thanks,
Click to expand...
Click to collapse
Pretty much the same discussion going on here: http://forum.xda-developers.com/showthread.php?t=1265028
IMHO - I'm getting a ton more life over stock on this one: http://forum.xda-developers.com/showthread.php?t=1265028
http://forum.xda-developers.com/showthread.php?t=1247253
Plus - one of the 1900maH batteries from htcexpress is a very worthy investment !
Dan

Mcsense 2.2 with tinys 8/31 kernel with smartass. Rom looks great and fantastic battery. Personally, ill never use aosp on my phone again. Never had that "great" battery life others claim. I can overclock tinys to 1.113, minimum 245, and its very stable, very fast, and i get a good 12+ hours with HEAVY use. Thats on a stock day one battery. Ive got about as old a dinc you can get, been rooted longer than i can remember, and flashed atleast 3 to 4 times most weeks. Tryin out newts new runny rom now, dont know about battery yet on it. Good luck dude.
Sent from my Droid Incredible 3D using XDA App

Thanks everyone for the replies, I'm going to try the latest CM7 nightly... I think

at4r1 said:
I'm a big fan of Jermaine's In-Sensitive Minimalist ROM. It has by far been the fastest and best on battery life for me.
Click to expand...
Click to collapse
I'll second this. In-Sensitive Minimalist takes out almost all of the bloat of Sense, but leaves in the framework and the best apps. With Tiny's modules and SetCPU you can basically get it to run for days with minimal usage and 24-30 hrs with normal usage on a 1500mAH battery, which are $10 from Amazon.com and a good deal.
If you want to stick with Sense, that's the ROM to use. Otherwise, CM is a good choice.

Rooted Evo Deck 1.3 Final

I am having the worst battery life with my evo 4g running gingerbread evo deck 1.3 final with the Tiamat Evo v4.0.8. Makes no sense. I have nothing syncing but it looks like my "Android system" is working overtime. Lol. Any Suggestions or anything. I flashed the kernal when I flashed the latest evo deck rom two days ago. I know I'm suppose to give it time to settle, but how much time.

Try SavagedZen 2.2.1 CFS HAVS kernel with consecutive governor 960-245
I notice no lag and battery life is perfect
Sent from my PC36100 using xda premium

toast22 said:
I am having the worst battery life with my evo 4g running gingerbread evo deck 1.3 final with the Tiamat Evo v4.0.8. Makes no sense. I have nothing syncing but it looks like my "Android system" is working overtime. Lol. Any Suggestions or anything. I flashed the kernal when I flashed the latest evo deck rom two days ago. I know I'm suppose to give it time to settle, but how much time.
Click to expand...
Click to collapse
Try rebooting the phone and calibrating the battery. Do you have a wake lock going on?
My knocked up EVO

I have the same setup...deck 1.3 and tiamat 4.0.8...and have no android system on that screen. you have something else goin on there

Thanks for your help! I let my phone settle all night and now the android system issue is nonexistent, but now cell standby has taken over. Should update my radios and what not? Can i do that being on custom rom?
Baseband version:
2.15.00.04.08
PRL version:
60680
I just like decent battery life? Not crazy battery life. Just 12 hrs haha

I want to try the savagezen kernal, but I used to flash kernals too often so I want to give this time to settle and do its thing. Running out of patience though! With the tiamat kernal, what should be my scaling? Currently running smartassV2.

toast22 said:
I want to try the savagezen kernal, but I used to flash kernals too often so I want to give this time to settle and do its thing. Running out of patience though! With the tiamat kernal, what should be my scaling? Currently running smartassV2.
Click to expand...
Click to collapse
android system shows up after a call guys...Make a call and see what happens but that does not have to be the battery killer. It can show up on mine like crazy and I still get good battery life. Change kernels, drop processor speed delete apk's from system/app that you dont need and may be running. I mean there are a lot of things you can do expect panic.... Its ok give everything a shot you will work it out...
Oh yea change it from smartass to something else, you got choices what may be good for one person may not be right for you....

I just don't know what each scaling does or how it effects my evo. I just went with interactive for the time being.
Sent from my EvoFucksWives using XDA App