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Rom or Rom+Kernel with best battery duration known?

So ye, maybe tonight or tomorrow a storm will come and probably will have no electric power, I have 3 batteries but just in case it takes long to get electricity back I wanna know what rom or rom/kernel combination has been proved to be one of the bests battery saver.
I know I might get shot by the search police but I made this new topic cuz roms get updated everytime and old searches can point me out outdated answers, plus I need a quick response since the storm might start tonight, thanks.

There's no definitive BEST. It's all about what you do and how well you manage it. I get pretty great battery life with CM7 and LordMod's kernel. But some people have battery drain issues with cm7 nightlies. It's more about you and your phone. Experiment, try stuff out, see what works best for you.

Jake33108 said:
There's no definitive BEST. It's all about what you do and how well you manage it. I get pretty great battery life with CM7 and LordMod's kernel. But some people have battery drain issues with cm7 nightlies. It's more about you and your phone. Experiment, try stuff out, see what works best for you.
Click to expand...
Click to collapse
Thanks I will download CM7 now

I recommend using the Nightly builds, it intimidates some people who are new to CM7 but they are really good and for the most part very stable.

djzikario said:
So ye, maybe tonight or tomorrow a storm will come and probably will have no electric power, I have 3 batteries but just in case it takes long to get electricity back I wanna know what rom or rom/kernel combination has been proved to be one of the bests battery saver.
I know I might get shot by the search police but I made this new topic cuz roms get updated everytime and old searches can point me out outdated answers, plus I need a quick response since the storm might start tonight, thanks.
Click to expand...
Click to collapse
I recommend any aosp build. I'm on miui with the lordmod kernel and you can go days if you turn off data, which isn't necessary in an emergency situation like you are describing .
Sent from my Inspire 4G using Tapatalk

Jake33108 said:
There's no definitive BEST. It's all about what you do and how well you manage it. I get pretty great battery life with CM7 and LordMod's kernel. But some people have battery drain issues with cm7 nightlies. It's more about you and your phone. Experiment, try stuff out, see what works best for you.
Click to expand...
Click to collapse
YO Thanks again, CM7+BFSLordmod with the stable puv gave me 10 hours (data/sync off and screen most of the time off) and it was still at 91%!!! thanks a lot.
Im surprised how leedroid and other sense based roms now drain a lot of batteries! maybe cuz of the new sense, I remember leedroid gave me better battery results in the past similar to cm7.

I'd go with ninja its got better battery life and is even smoother
Sent from my Inspire 4G using XDA App

Try the Virtuous Beta:
Shad0w2626 said:
Today I went to NYC and did some pretty heavy usage: Spotify in the subway, Google Maps, Facebook, FourSquare (picture uploading), Texting, Calls.
I'm running the Virtuous Unity Beta w/ Juice Defender on Balanced.
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"lightbox_download": "Download",
"lightbox_share": "Share",
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I'm guessing I could have lasted longer but my Display was apparently eating my battery.
Click to expand...
Click to collapse

Im using skype now with video call which is killing my battery

[Q] Why is "Android OS" draining my battery? [Resolved]

Here are some screenshots of my Battery Usage and as you can see my battery is just horrible:
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I have done some research into the Android OS draining the majority of the battery and didn't really find anything with the SGS4G, however found the issue in the Galaxy Nexus, Samsung Galaxy SL i9003, Galaxy Note GT-N7000, and the Samsung Infuse 4G forums, and I am sure there is probably more..
Out of all those forums this is the only one that seemed like it could have a solution linking it to:
1. Google backup transport
2. Organizer widget
Click to expand...
Click to collapse
My only problem, I have neither of those on my phone.
I was hoping that maybe somebody here could help me diagnose the issue. For the longest time I just have thought my battery is getting old and isn't holding a charge as long, or I just use my phone too much. However after watching my Battery Usage over the past couple days makes me wonder if there isn't another issue here.
I am currently running RaverX3X's amazing Valhalla BlackEdition Final with the Booster and FBis251's bhundven's SMS KJ6 v0.2.0 Kernel. I also have installed the BraviaHack and am using the KG4 Modem. I am able to post logs or anything that can possible help. I have used thomas.raines 1-Clink Gremlin Remover following each step to the "T" with no luck of fixing the issue.
I have attached more Battery Usage Stats as well in case they might help.

I'm pretty sure it's your kernel, try antonx kernel, it has better batter life
Sent from my SGH-T959V using XDA

m0bstr said:
I'm pretty sure it's your kernel, try antonx kernel, it has better batter life
Sent from my SGH-T959V using XDA
Click to expand...
Click to collapse
I will have to give that try, do you happen to know what kernels are known for providing the best battery life? I guess I can always search around and see lol.

Sario27 said:
I will have to give that try, do you happen to know what kernels are known for providing the best battery life? I guess I can always search around and see lol.
Click to expand...
Click to collapse
Upgrade to build3 of VB-FB which comes with beta5 of antonx's kernel plus other fixes.

FBis251 said:
Upgrade to build3 of VB-FB which comes with beta5 of antonx's kernel plus other fixes.
Click to expand...
Click to collapse
I'll have to give that a shot. Right now I'm testing battery usage with airplane mode activated, and the screen off for the next 8 hours. I'm logging battery usage with the BetterBatteryStats app, to see if I can pin point the problem in the first place.
Sent from my SGH-T959V using XDA

I use antonx kernel and have great battery life, try it and see how you like it
Sent from my SGH-T959V using XDA

Well you may already have your answer but just incase
GR>FB's VB (Or Other)
But really at this point it looks like its a kernel issue.
Good luck
Sent from my Maybach s 4g

Thanks guys, I have pretty much resolved the issue as I have switched Kernels and am no longer experiencing huge battery loss from anything other then the Display which is just plain normal. I still plan to update over to FBis251's version of ValhallaBlack as I have been keeping an eye on it, and debating when to make the switch.
[On a side note] I'm still not hundred percent sure why the Kernel was giving me this issue to begin with. If I had more experience with Android development debugging I'd love to dig deeper into this issue. However though since it doesn't seem to be a huge issue among other users in the SGS4G forums, and it is easily fixed by using another Kernel I don't really see the need.
Thanks again FBis251, and m0bstr.

Problems with Android OS with Gingerbread and Froyo
I have now encountered battery drainage problems on two different Samsung phones. For a long time my Samsung Captivate ATT running Froyo 2.2 was killing my battery. I was about to buy a new phone. I touched base with Samsung and decided to back up my phone and do the factory wipe.
After the reset and the loss of my apps, the phone seems to be working ok. Even a battery which constantly appeared to be dead, is now working fine and holding a charge.
Today another phone the Samsung Glide ATT running Gingerbread seems to have caught the problem and Android OS is using 25% of the the battery. This is ridiculous.
Normally, about 75% is for display and OS doesn't even show up.
Another person at work had an Android exhibiting similar problems today. This problem seems to be pretty widespread if I know three people with this problem. Feedback appreciated.

Maybe "One Power Guard" can help you downloaded from http://forum.xda-developers.com/showthread.php?t=1889740

Telus SGS4G battery life and ICS

I've tried many of the SGS 4G ROMS after convincing my Telus SGS 4G it was a T-Mobile version. I really like both remICS-UX and UltraGen ports, but battery life is quite disappointing. 3G/4G was not as good on remICS-UX ans UltraGen.
Any Telus phone users out have suggestions on other ROMS to try, or settings to try for our phone (yes I searched the forums, very few Telus folk here).
Cheers,
BHTM

Flash with hefe kod kernel over your Ultragen rom. You should see a big difference in your battery life. Also turn off wifi and GPS if you r not using it.
Sent from my SGH-T959V using xda premium

The Telus phone is actually the T959P or something and it's reallynot the same phone as they use different bands than Tmobile/Wind does, so I'm surprised the ROM actually works but there could be many things that are draining the battery that are due to the fact that's its not the same phone, and that also would explain why things don't work right in terms in wifi/4g/battery, etc.

Yeah I am totally surprised it worked too. But a few kind Telus users here give easy instructions on how to make it think it is a sgh-t959v. Just hoping they will continue being kind and share there tips and tricks.
Anyway busy thanking and donating to all you kind folks. I'm a happy noob, having fun great fun trying all these custom roms.
Sent from my SGH-T959V using xda premium

Just curious what you did to make it think it's a 959V ?
When you say battery life wasn't as good, can you clarify that? How long were you using it, how long did you have the screen on for, did you change governors to one better suited, can you take a screen shot of your battery window in the settings like this
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"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Whatever app is listed at the top, in my example, Screen, click on that and take a screen shot, This will show how much time that app has used
If you run something like CPUspy, it will show you the different "states" of your cpu, IE, what speed it's running at. If the phone is in standy, it should run mostly in deep sleep state. If something is keeping it from sleeping, that will affect the battery.
I just took my phone off the charger, but you can see it used 1000mhz for the bootup at full speed, then when I shut it off, it went to deep sleep mode. If there is no deep sleep, then something is keeping it "awake" and that is the cause of the battery drain. Sometimes installing app's can do that.

>Just curious what you did to make it think it's a 959V ?
http://forum.xda-developers.com/showthread.php?t=1225593&page=5
>When you say battery life wasn't as good, can you clarify that? How long were you using it, how long did you have the screen on for, did you >change governors to one better suited, can you take a screen shot of your battery window in the settings like this
Much thanks for the tips, I'll give them a try. Playing with CM10 at the moment,but will try UltraGen again later and capture things. Been wiping everything including sdcard, so no media files to confuse media server.
Just realized I should be in Q&A section, bad n00b :laugh:
BTW, do yourself and dao not take donations? You guys are rockin' the SGS 4G with all the ports and help.

bhtm said:
>Just curious what you did to make it think it's a 959V ?
http://forum.xda-developers.com/showthread.php?t=1225593&page=5
>When you say battery life wasn't as good, can you clarify that? How long were you using it, how long did you have the screen on for, did you >change governors to one better suited, can you take a screen shot of your battery window in the settings like this
Much thanks for the tips, I'll give them a try. Playing with CM10 at the moment,but will try UltraGen again later and capture things. Been wiping everything including sdcard, so no media files to confuse media server.
Just realized I should be in Q&A section, bad n00b :laugh:
BTW, do yourself and dao not take donations? You guys are rockin' the SGS 4G with all the ports and help.
Click to expand...
Click to collapse
There is more coming... btw.
someone is sending me a verizon fascinate, and there is some common code between sgs4g, verizon fascinate, and T959P.
The bigger part is cg2900 gps driver, different digitizer, and a few other odd ball differences.
I also have an SK4G that I'm trying to port as well.
A lot of these devices share the same drivers, and our phones are just a little bit different then aries.
Fascinate even has some problems in the aries kernel, although I think they have work arounds for most of them.
So, as soon as I become available (not busy with work from 8am to 3am daily...) and get the verizon fascinate from... someone, I'm gonna start looking at t959p as well.

very ryeartlt
getochkn said:
Just curious what you did to make it think it's a 959V ?
When you say battery life wasn't as good, can you clarify that? How long were you using it, how long did you have the screen on for, did you change governors to one better suited, can you take a screen shot of your battery window in the settings like this
Click to expand...
Click to collapse
My daily usage is like this: Get on train, use phone to Netflix, read news (Currents, Flipboard, et al), listen to music from Google cloud or Rdio, screen on the entire time (1 hour 15). Don't use phone for 8 hours. Reverse the train ride. Charge phone when I get home for next day use. Rarely have GPS or Wifi enabled. No media on SD card. Only half dozen extra apps (Currents, Flipbord, Google Play Music, Rdio, Google Maps etc).
The stock ROM from Samsung/Telus did a good job of lasting through day and have enough charge to finish the nightly train ride.
Had a chance to play with CPUSpy and try a few things, no deep sleep on remICS-UX or UltraGen and they would not last through the day (unused, screen black) without being charged. I haven't changed the default ROM performance settings or governors (tried to OC but phone got really hot, didn't really notice any difference is application performance, so set it back).
I've just started trying the SlimBean 3.1 ROM seems to be deep sleeping according to CPUSpy. Fingers crossed it behaves closer to stock ROM as far as battery is concerned (deep sleeps when not in use)
Anyway thanks to mcmerrit for the instructions on how to get this odd variant working with the mod community ROMs. Feels like I have a new phone

I've never been able to get more than 10 hours on a charge with 2+ hours of screen time on any ics roms with the stock battery. I do have wifi on pretty much the whole time though.

Erikmm will have another kernel coming out with battery life as good as GB. Stay tuned.
If it helps, hit the thanks button. It's my motivator to be more helpful.

gizmoscoop said:
Erikmm will have another kernel coming out with battery life as good as GB. Stay tuned.
If it helps, hit the thanks button. It's my motivator to be more helpful.
Click to expand...
Click to collapse
You got that right ICS is about to get conquered along with JB
Sent from my Galaxy Nexus using xda premium

Slimbeam 3.1 battery life is quite good. Survived my Monday commute. New battery for my HTC amaze arrived today. But I'll switch back to sgs4g as amaze cm is not as stable.
Sent from my Amaze 4G using xda premium

[Q] Rapid battery drain

Hi all, I have a Samsung Galaxy Nexus GSM version (maguro)
I've flashed many roms before on this phone, including some unofficial kitkat roms.
After flashing one of these roms, I noticed a big impact on battery draining: down to 0% in a matter of 10 hours.
I decided to reflash the stock android rom 4.3. You know, like a total wipe, reflash everything from scratch.
Battery life remained the same, so I bought an original Samsung battery for my phone on ebay.
While I saw increase, it lasted now max a few hours more than my old battery. So the problem is not fixed.
I've tried to depict the problem but haven't found it. BetterBatterStats & co don't report a problem nor an app that is misbehaving or eating battery. Neither is network connectivity the problem: I use 2G only, and the connection is stable where I am.
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As far as I am aware, it is not your typical "bad app" or connectivity problem, but something else.
Does anyone have an idea what I might have done wrong when flashing that could cause this?
Could it be a hardware problem I inflicted by flashing?
Should I follow a particular guide and reflash again?

BUMP

froginvasion said:
Hi all, I have a Samsung Galaxy Nexus GSM version (maguro)
I've flashed many roms before on this phone, including some unofficial kitkat roms.
After flashing one of these roms, I noticed a big impact on battery draining: down to 0% in a matter of 10 hours.
I decided to reflash the stock android rom 4.3. You know, like a total wipe, reflash everything from scratch.
Battery life remained the same, so I bought an original Samsung battery for my phone on ebay.
While I saw increase, it lasted now max a few hours more than my old battery. So the problem is not fixed.
I've tried to depict the problem but haven't found it. BetterBatterStats & co don't report a problem nor an app that is misbehaving or eating battery. Neither is network connectivity the problem: I use 2G only, and the connection is stable where I am.
As far as I am aware, it is not your typical "bad app" or connectivity problem, but something else.
Does anyone have an idea what I might have done wrong when flashing that could cause this?
Could it be a hardware problem I inflicted by flashing?
Should I follow a particular guide and reflash again?
Click to expand...
Click to collapse
flash different rom

Paget96 said:
flash different rom
Click to expand...
Click to collapse
Okay fair enough, but flashing new roms is useless if I don't have any idea of the cause.
Also, does flashing a rom also flash other radios etc? In that case you are right this might help.
I've noticed that battery drain is equally worse even when in airplane mode btw.

froginvasion said:
Okay fair enough, but flashing new roms is useless if I don't have any idea of the cause.
Also, does flashing a rom also flash other radios etc? In that case you are right this might help.
I've noticed that battery drain is equally worse even when in airplane mode btw.
Click to expand...
Click to collapse
maybe is ROMs kernel

Paget96 said:
maybe is ROMs kernel
Click to expand...
Click to collapse
Tried using franco instead of stock kernel. Now flashed Paranoid Android 4.44, no difference.
I tried some other suggestions on fora, such as reboot while in airplane mode to restrain anything from starting with data.
But to no avail, the battery drain is constant and very high.

froginvasion said:
Tried using franco instead of stock kernel. Now flashed Paranoid Android 4.44, no difference.
I tried some other suggestions on fora, such as reboot while in airplane mode to restrain anything from starting with data.
But to no avail, the battery drain is constant and very high.
Click to expand...
Click to collapse
check on which freq processor work

Paget96 said:
check on which freq processor work
Click to expand...
Click to collapse
Minimum freq is set to 192 Mhz (lowest in franco kernel).
CPU Spy reports that it has been 8:19 in deep sleep or for 94%, still had same drain :/

May be the battery you purchased is not the original one..
check another battery or you may calibrate the battery after get 100% charged

EX Kernel for Pixel 4/XL

Hi,
so there is ElementalX Kernel for Pixel 4 now available.
I noticed an updated ex Kernel Manager App and within the app you can download and flash the Kernel.
Changelog says "Initial release".
The website has not been updated yet.
I flashed the kernel this morning and it works pretty good.

Just sayin... I am glad it works pretty good for you!
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Wrong forum.
Sent from my coral using XDA Labs

ridobe said:
Wrong forum.
Click to expand...
Click to collapse
Ehm, nope?

Where I don't see it?

s7icky.com said:
Where I don't see it?
Click to expand...
Click to collapse
Because the Dev hasn't posted it yet.

Been running it all day as well with no issues. So nice to have screen gestures back!

How is ElementalX running for you guys so far? Any stability issues?

PainfulLover said:
How is ElementalX running for you guys so far? Any stability issues?
Click to expand...
Click to collapse
Runs like a champion here for me.

How to Install the ElementalX Custom Kernel on Your Pixel 3a ??

Have you seen an option for high brightness mode anywhere in there? Some of the other custom kernels have enabled it, curious as to whether it's here or not too.
I'd check myself but my pixel won't be here till Friday.

Jz5678910 said:
Have you seen an option for high brightness mode anywhere in there? Some of the other custom kernels have enabled it, curious as to whether it's here or not too.
I'd check myself but my pixel won't be here till Friday.
Click to expand...
Click to collapse
It's there

So far I'm not having the freezing issues that Franken and Kirisakura Kernels have given my device.
Will keep yall posted

It's been running great for me.

I've had unfortunately the screen stop registering touch and I have to soft reset. Anyone else? Or what possibly have I done wrong? Haha.
Thanks guys.

Lambetts said:
I've had unfortunately the screen stop registering touch and I have to soft reset. Anyone else? Or what possibly have I done wrong? Haha.
Thanks guys.
Click to expand...
Click to collapse
Not really sure you did anything wrong. Could've just been a glitch of some sort. I've been using Ex kernel and HBM without the incident you described. Has it happened several times or just once?

Badger50 said:
Not really sure you did anything wrong. Could've just been a glitch of some sort. I've been using Ex kernel and HBM without the incident you described. Has it happened several times or just once?
Click to expand...
Click to collapse
Twice. I've recently disabled sweep2sleep a d I haven't had it in the last 6 hours or so. So, let's hope. Haha.

Badger50 said:
Not really sure you did anything wrong. Could've just been a glitch of some sort. I've been using Ex kernel and HBM without the incident you described. Has it happened several times or just once?
Click to expand...
Click to collapse
Couple things.
1 - what is HBM?
2 - does root stay when installing the kernel through the manager?
3 - how are you liking the coral?

wgrant said:
Couple things.
1 - what is HBM?
2 - does root stay when installing the kernel through the manager?
3 - how are you liking the coral?
Click to expand...
Click to collapse
1. High Brightness Mode.
2. Yes.
3. I'm liking it a lot. Fast, smooth, and a lot better screen, sound, and feel vs my beloved P2. I do miss the FP sensor and led light, but oh well

Badger50 said:
1. High Brightness Mode.
2. Yes.
3. I'm liking it a lot. Fast, smooth, and a lot better screen, sound, and feel vs my beloved P2. I do miss the FP sensor and led light, but oh well
Click to expand...
Click to collapse
Those are the 2 things I miss too. Definitely. But, screen refresh is super nice, vibration, screen (colours, no blue shift) build quality, camera, machine learning AI (caption etc) all better thank P2XL. Still loved that phone, I mean, gees, I loved my N6P too but, things have changed haha.