Hey guys
I know its a repeated question but I have been trying several roms with all the different kernels on my SGS2 and the only one that I have found is the Foxhound Rom which gives me a decent battery life. But now I flashed Rootbox because I wanted to have the new TW launcher on the phone...I usually underclock the processor to 800Mhz on Ondemand profile....I installed the latest 1.7 version using the Darknight, CM9 and Siyah kernels and the battery lasts me for just a day of moderate usage mostly because I can see the phone deep sleep about 60-70% of the time? I also dont know if flashing a new modem will make a difference.
Can anyone advise me as to how I can reduce it and possibly get a better battery life? Also I am gonna try the Rootbox with Fluxi kernel as bajee11 uses that on his kernel? But if anyone else is on the same ROM and getting a decent battery life, can you please advise me and also suggest CPU profile that you are using?
All help much appreciated
http://forum.xda-developers.com/showthread.php?t=1612881
For ics I use try dark knight 1.8 and it's really good. Are you giving it a few cycles for the battery?
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Hey guys,
I finally installed CM7 a few days a go (nightly #74), and I'm very pleased with it. The only downside, really, is the battery life. It's usable, but it drains at least 40% faster than Samsung-based ROMs.
Most of the power seems to be going to Cell Standby. I hear some of the custom kernels can improve things a lot.
Could those of you who have experimented with different kernels give me a good recommendation for a kernel and/or modem release which will work well? I just don't have time to spend hours digging through hundred-page forum posts these days...
Thanks in advance!
Glitch is good. Battery will be a bit better with a custom kernel but it still won't be as good as Froyo. Just the way it is.
What's your cell standby reading? Percentage of battery use? Also of android system and OS,?
from the amazing Jets Bread
i recommend NEO 9 v5 it has great battery life and its really smooth it comes with led version and no-led
When I ran CM7 Nightlies a while back I always stayed on the Stock Kernel. I guess that since Kernels aren't updated "Nightly" like the Nightlies you shouldn't use other ones. Just my personal preference.
Stock kernel is more stable but other kernels give better battery an there much smoother
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Don't worry, this is not a what is the best kernel question. However it is similar. I have tired all the kernels, speed mod neak redpill syihah phenomannal. With certain kernels such as neak, speedmod, phenomanal, high get a really high Android OS usage. I have read this is just a reporting error however it seems the battery drains alot when in standby. This is not a waklock problem because i dont have any in the battery usage graph and in better battery stats. Does anyone know how to eliminate this in speedmod as it is my favourite kernel.
My last question is what is the best kernel for standby battery drain, i only use my phone around one hour of display time per day. With speedmod i drain around 3 percent a hour without doing anything and again their are no wakelocks.
If you could provide any insite that would be great.
Thanks
It depends too many variables can affect stand by, type of data your on, your signal strength, and such. Only true way of finding it out is to experiment with different kernels and governors. Try use a governor which sleeps well like lulzactive or similar. They have suspend profiles when screen is off, or can achieve something similar with setcpu and setting a screen off profile with conservative.
Allows a good few charge cycles to judge its performance as battery settles.
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Yeah i use the KL1 modem with redpill then one im using right now their is only conservative ondemand hyper and sleepy which is the best for standby
I can't answer that as not used that kernel I myself use only ondemand and works out fine for me. Try out conservative and see how that fares.
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Ok but can anyone speak to the high android os usage?
Anyone?
After testing several kernels i found that SIYAH 2.6.9 for Gingerbread and Siyah v3.0beta6 for ICS are tremendous on standby and you can see the low Android os consumption (varies between 3% to 10%)
for me siyah workd well with very less andriod os drain but the newer versions ,i am not satisfied cause its heating up more...iam experimenting all kernels ,i was on redpill latest and it workd well,wivout any setcpu,gov,tweaks etc...since 3 days on saiyah 2.6.14+ an its giving good results like the os drain is less than 10.....an iam not on any gov ,tweaks but ill b trying uv,gov twek .....
and yes for reminder iam heavy duty wiv 385+ apps
sm625614 said:
Anyone?
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Its simple different people different phone usage different kernels for different peoples usage .
its usually user apps that are background drain .
jje
Hi there
i have my galaxy for a few wekks now and i find battery on CM9 RC2 pretty bad (underclocked and undervolted)
which rom is recommended for good battery life (and works with siyah kernel)
GPS/WIFI/MOBILE DATA/CAMERA must be working !!
thanks for your suggestions
I was using xwlpo stock, only rooted. Undervolted -25 and set cpu to 800 mhz. The governor was ondemand. The formula of amazing battery life. Now i use jelly bean which wastes battery.
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No two people will ever have the exact same setup, and even if they miraculously did, the likelihood of their two phones coming out of the factory exactly the same is infinitesimal.
So a ROM that someone else experiences good battery life with, may be terrible for you or me.
Psyloid said:
Hi there
i have my galaxy for a few wekks now and i find battery on CM9 RC2 pretty bad (underclocked and undervolted)
which rom is recommended for good battery life (and works with siyah kernel)
GPS/WIFI/MOBILE DATA/CAMERA must be working !!
thanks for your suggestions
Click to expand...
Click to collapse
Try rootbox with dm kernel. It has pretty good battery, but like previously said every user is different and therefore will have different battery life. It would not surpise me if this gets closed very quickly.
Hi guys,
I've been using many kernels now, Siyah, Franco, Yank.555, NEAK. Etc. But They all used up my battery like crazy! lost 8 % in 20m thats not good, Mind that i wasn't doing anything, it was just on screen lock. Now i've read that media scanner could be in wakelock to use so much battery but how do i see this? And my main question is, what is the best kernel for battery use but balanced with stock performance? I've heard phenomenal would be good, but i rather ask before installing another kernel by now.
I'm running sotmax ultimate stock v14 for gt-19300XXELLA jelly bean 4.1.2
Thanks in advance
It's against the rules to ask that
Why don't you try stock kernel? I have a good battery life. Try to close all battery-sucking apps like Facebook,Istagram and stuff like that.
I don't exactly think it's up to the kernel to save battery life. I'm using siyah, but, to give you an example, its battery saving features are undervolting. Meaning you can either make it have top performance, or set it to the highest battery saving setting.
Best kernel, best rom, and hottest chick in the world threads are not allowed as they are all subjective
Thread closed
After doing a bunch of research, I think I'm going to flash ParanoidKANGdroid. It seems to be a really nice combo of features from many of the top development forks.
That said, I'm concerned that with the amount of features that are packed in there, the battery life may take a hit. Is this indeed the case? Or does it get a good battery life? If I'm concerned for battery life but still want to try out JB and possibly some of the other custom features of CM10 or AOKP or MIUI or ParanoidAndroid or etc., is there someplace else I should look?
I flashed SuperNexus and then underclocked it to min 192 max 1.1ghz gives crazy good battery life highly recommend it!
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