[Q] Battery life ROM - Samsung Galaxy Nexus

Hey All,
I flashed the Shiny ROM recently. I am getting pretty bad battery life though I didn't own the phone long enough before flashing a Shiny to know if this was a Shiny issue or not. Anyways, I like the ROM well enough but was curious if anyone could suggest another ROM that perhaps goes easier on the battery. I am just on the edge of getting a zero lemon battery but thought I might try a few more software tricks before I plunk down the cash for that battery.
I have already replaced the shiny kernel that is baked into the ROM with the KK422 kernel which I had heard is easy on the battery. Seems to be helping a bit so far.
I know that battery use is highly individual, I am mostly looking for a starting suggestion. I can run my own usage diagnostics.
Thanks yet again!

Use greenify and wakelockdetector. Also you can try to tweak with trickster to get better battery.
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mrgnex said:
Use greenify and wakelockdetector. Also you can try to tweak with trickster to get better battery.
Sent from my Galaxy Nexus using XDA Premium HD app
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Thanks. After I wrote that OP it occurred to me, probably kernels more so than ROMs affect battery life. Just based on the little that I now that would seem to be the case. Is that true at all?

judson75 said:
Thanks. After I wrote that OP it occurred to me, probably kernels more so than ROMs affect battery life. Just based on the little that I now that would seem to be the case. Is that true at all?
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Yeah I noticed better battery life with kernels not so much by switching roms..
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Related

Roms with the best battery life.

I was wanting to know which ROM has the best battery life on the Gnex the CDMA version.
Thanks
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They are all pretty much the same IMO. The screen sucks up juice so keep it off as often as possible lol
xero925 said:
I was wanting to know which ROM has the best battery life on the Gnex the CDMA version.
Thanks
Sent from my Galaxy Nexus using xda app-developers app
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If you want the latest software, most stable, and best battery life ROM, go with MMuzzy's AOSP ROM. Using it now, and its amazing
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ROMs themselves rarely ever have an actual impact on battery life. Most postive effects for battery come from the kernel, and negative ones from rogue apps.
Before you ask which kernel offers the best battery, it really depends on the requirements of the user and the phone itself. You'll just have to try a few.
Marisa said:
ROMs themselves rarely ever have an actual impact on battery life. Most postive effects for battery come from the kernel, and negative ones from rogue apps.
Before you ask which kernel offers the best battery, it really depends on the requirements of the user and the phone itself. You'll just have to try a few.
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That's very true, IMHO LeanKernel is the absolute best.
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How do I switch out the kernel. I'm kind of a noob at this stuff...
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Flash it like you would a ROM. Make sure you find one that is for the version of android your ROM is based on. I would suggest tying Franco kernel, but there are many good ones.
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xero925 said:
How do I switch out the kernel. I'm kind of a noob at this stuff...
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FYI....this thread goes in general.
Flash kernel in cwm the same as you would have a rom. Be sure to clear cache/dalvik first.
For the moment the ROM with the best battery life is SlimRoms 2.7
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
I've tried many ROMs and Kernels with no success in the battery life department.
My phone charger died so I downloaded an app...Easy Battery Saver...my phone was still at 34% after 1 day and 7 hours. I was NOT heavily using my phone but still this is the best battery life I have ever experienced. I was always on the "battery saver apps are useless" team until recently.
Don't get me wrong, I'm still flashing
Just love my new app.
i tried miui, pa, vicious, aopk, smooth, and now using cm10. tried out different kernals too,but at the end, all the roms cant pass 1hr 50mins of screen time.
zeke1988 said:
i tried miui, pa, vicious, aopk, smooth, and now using cm10. tried out different kernals too,but at the end, all the roms cant pass 1hr 50mins of screen time.
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Hmm.. thats strange. I'm on MMuzzy's ROM which is pure AOSP and I get around 2 and a half hours of screen time. And some people around the forums have gotten around 5 hours of screen time with different combinations of ROMS and Kernels.
I have tried numerous roms, if not all of them for the galaxy nexus, and there is a difference between roms, even using the same kernel.
I have been getting amazing battery life using Eclipse.
Sent from my Galaxy Nexus using Tapatalk
The mods can move this thread, but in the mean time, it is a good question.
I used to get some awesome battery life. VZW + 2100mah. Typically 4 hours screen on time was normal.... now I'm lucky to get 1hr. I can't remember if it was the jelly bean update or the inclusion of Google Now.
Does letting the ROM settle really help? I have been getting terrible battery life out of my 2100mah. The battery just drains when the screen is off. No rogue apps, but this is a fresh install as of 24 hours ago
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I believe use what you like as long as you use Lean Kernel you should get good battery life.
ir13 said:
I believe use what you like as long as you use Lean Kernel you should get good battery life.
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I wasn't going to put my 2 cents in but because there are so many complaints about this being in the wrong place, I just have to now.
I have tried many different ROM's and kernels and found there always seems to be the "right" combination sooner or later. Right now I am on AOKP w/Franco M6 and getting about 14 hours with 24% battery left, 2.5 hours screen time, mostly LTE and moderate phone use, best I have seen of any combo for me on this ROM. For CNA the right kernel for me was lean kernel. A little experimentation and patience and you will find that sweet spot soon enough.
Edit: the whining drew me to it, sucked me in so I couldn't stop myself from answering
If someone can get 4+ hours screen with mostly 3G, let me know. haha.
Wrong section
However as for battery life slim ROMs work great but I'm on jbsourcery built in trinity and I've definitely had worse d: the only ROM I've used that's had has battery is pa however they've had multiple updates since then so I'm sure its not horrible now
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2 things here:
1) OP, wrong section. Questions belong in their own section, the Q&A section. Development is reserved for Roms, kernels, tweaks, etc.
2) If you guys see something posted in the wrong section, report it. No need to get in an internet gang war about it. Us mods have a life too and we can not be here 24 hrs a day to watch over you. When you hit the report button, we see it.

4.1.2 improved battery life

After receiving the 4.1.2 OTA update, I'm getting a much better battery life.
It used to be dead at the end of the day. Now, I finish my day and the battrey is on 45% with the same phone use.
I also find that apps and mostly google apps do launch faster
Have you also noticed it?
CM10 "added" 4.1.2 into the compilation recently & I've noticed a difference too... :victory:
Can you give us some screenshots of the screen time?
Sent from my Galaxy Nexus using xda app-developers app
Only with data all the day i got 3.30h and 19h on, automatic brightness, sync on. Google stock 4.1.2
4.1.2 appears to have a big affect on battery life. I've gone from needing a charge after about 12 hours to going all day with charge left
Sent from my Galaxy Nexus using xda app-developers app
When 4.1.1 was released, people reported that Google Now was a battery hog. Maybe Google improved it drastically.
Those who experience better battery life with 4.1.2, do you have Google Now activated?
MoosDiagramm said:
When 4.1.1 was released, people reported that Google Now was a battery hog. Maybe Google improved it drastically.
Those who experience better battery life with 4.1.2, do you have Google Now activated?
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Click to collapse
To add on to this. I'm noticing FAR fewer wakeups (alarms) caused by Maps services on 4.1.2. That has an impact regardless of whether or not Google Now is running.
They definitely made some changes to location based services considering the menus were modified and additional settings were added.
Using a custom ROM and kernel so I can't answer this. But my battery life using CM10 + Franco Kernel has definitely improved.
zephiK said:
Using a custom ROM and kernel so I can't answer this. But my battery life using CM10 + Franco Kernel has definitely improved.
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Flash stock and it will be better.
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I logged in hoping someone had made a topic about this. On 4.1.1 I did not use Google Now because of the effect on battery life it caused. I tried it on 4.1.2 hoping it had improved. In my opinion it did. Still need more days to test but it seems way better now. Even saying that, I still feel it takes too much of a hit on battery for me to continue using it.
Just my 2 cents.
Soldier-2Point0 said:
Flash stock and it will be better.
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Umm, it absolutely wouldn't be better at all.
Rooting and using custom ROMs have it benefits and my battery life wouldn't be to where it is now (at least not as long) if i was on stock.
Stock is too boring for me. I need my lock screen customizations and backups
It doesn't take away root capabilities right?
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runderekrun said:
I logged in hoping someone had made a topic about this. On 4.1.1 I did not use Google Now because of the effect on battery life it caused. I tried it on 4.1.2 hoping it had improved. In my opinion it did. Still need more days to test but it seems way better now. Even saying that, I still feel it takes too much of a hit on battery for me to continue using it.
Just my 2 cents.
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I use it while traveling. A lot of the functions are designed to help you familiarize yourself with the area.
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Soldier-2Point0 said:
I use it while traveling. A lot of the functions are designed to help you familiarize yourself with the area.
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Absolutely. I don't travel much so its not as useful for me.
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The 4.1.2 custom ROMs have done me better overall than the 4.1.1 ROMs.
I haven't noticed much of any difference one way or another.
So the latest cm10 nightlies contain 4.1.2??
It seems the battery life claims are pretty circumstantial. I wish there was a standardized test for this..
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Cm10 nightlies are cm10.
And battery is much much better.
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I never let any Rom to settle down(for more than 2 days) to comment on battery life, but i hope the thread is pointing to facts
So now in Stock will report back after 2 charge cycles at least
The map process is eating my battery to. I reserve testet it yesterday (nandroid of 4.1.1 back) no problem and then again OTA to 4.1.2. Anyone out there a possible resolution ? Had 2-3 days with my battery, now maybe one day.
---------- Post added at 09:55 AM ---------- Previous post was at 09:51 AM ----------
shahrukhraza said:
It doesn't take away root capabilities right?
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If you use some sort of Recovery like CWM it does not. CWM will ask you if you want keep recovery and/or root.

Which rom has best battery life?

I just got a GS3 and im looking for a rom that has the best battery life. Any recommendations?
xcuter said:
I just got a GS3 and im looking for a rom that has the best battery life. Any recommendations?
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Honestly they all seem about the same to me. You may squeeze a little extra out by flashing a custom kernel and playing with settings a bit.
Sent from my SPH-L710 using xda app-developers app
Strong Steves Odex Blue ROM is Great on battery and is very smooth and fast. Give it a try
They all do for the users that run them. No one runs their phone the same as you so you have to try them and see.
"What is the Best" threads are meaningless in that respect.

What rom had the best battery life

I have now a samsung rom on my phone but i want a cm10.1 or aosp rom on my phone is cm10.1 a better battery than samsung roms??
Sorry for my english
Sent from my GT-N7100 using xda app-developers app
yes it does because it has less features So less mouths to feed
Blackwolf10 said:
yes it does because it has less features So less mouths to feed
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Wrong!
'Swyped' from my GT-N7100
Blackwolf10 said:
yes it does because it has less features So less mouths to feed
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I could compete with any CM based ROMs any day.
Blackwolf10 said:
yes it does because it has less features So less mouths to feed
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Click to collapse
That's how it should be but in reality it's not. Sammy roms have much better battery life but then again that could just be because there are better power and memory management features on stock. It's the only reason I've been reverting back to stock since almost every other cm10.1 based roms have ridiculously weak battery life.
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bushako said:
That's how it should be but in reality it's not. Sammy roms have much better battery life but then again that could just be because there are better power and memory management features on stock. It's the only reason I've been reverting back to stock since almost every other cm10.1 based roms have ridiculously weak battery life.
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that's kinda weird because on mine the battery on stock sucks but on cm10.1 it lasts a lot more so i was thinking the same for note2
Not really. Battery life is awesome at is on stock. You could flash some kernel like Perseus and do some undervolting or even underclocking to
squeeze more battery out of it though.
Battery life, I've found it to be more or less the same, if not marginally better on stock.
@bushako - How's battery life on MIUI mate? Heard it drains battery more than other stock based ROMs?
So what is better i hear different story's haha
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gamesz2 said:
So what is better i hear different story's haha
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Choose the best that fits your lifestyle. Period.
Fvck what anybody thinks.
tuxonhtc said:
Not really. Battery life is awesome at is on stock. You could flash some kernel like Perseus and do some undervolting or even underclocking to
squeeze more battery out of it though.
Battery life, I've found it to be more or less the same, if not marginally better on stock.
@bushako - How's battery life on MIUI mate? Heard it drains battery more than other stock based ROMs?
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I actually ended up going back to stock based Rom. The battery life wasn't as bad as I had thought, it got me about 6hours screen time. Don't get me wrong MIUI really looks gorgeous but at the expense of performance, especially at this stage since there's quite a few bugs that needs ironing out and also because MIUI and xposed framework use the same setup they are incompatible and I'm use to lower DPI. I might get back with signs of improvements.
Also, I found that Perseus kernel is not compatible with aosp and that so far the one that does work is neak and redpill.
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Lower dpi means better battery life or drain the battery?
Android revolution
Android revolution rom is stock rom but all the things which causes lag are removed and u still get amazing battery too...
gamesz2 said:
I have now a samsung rom on my phone but i want a cm10.1 or aosp rom on my phone is cm10.1 a better battery than samsung roms??
Sorry for my english
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With the same app installed and same setting on my daily use. I can tell you that sotmax v6 and v7 absolutely brilliant interms of battery life performance.
Wit 3g full time on. My battery able to last longer at least 22hours++ with 6.5hours screen on time.
I can show you the photo as I captured previously.
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lee yun khong said:
With the same app installed and same setting on my daily use. I can tell you that sotmax v6 and v7 absolutely brilliant interms of battery life performance.
Wit 3g full time on. My battery able to last longer at least 22hours++ with 6.5hours screen on time.
I can show you the photo as I captured previously.
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Yeah iam on a good stable rom 2 but i love custumizing my rom ... i am on fakejap rom (with simplistic) .. this rom almost got the same battery life
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Romow really have very good battery life.

[OPINION] is this Good Battery Life?

Hey everyone!
I just want to know what you guys think of my battery life, I think it's pretty decent but I'd like to hear your input! Thanks
I'm on illusion v2.0
Nabeel10 said:
Hey everyone!
I just want to know what you guys think of my battery life, I think it's pretty decent but I'd like to hear your input! Thanks
I'm on illusion v2.0
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BBS log please?
I'd say that's pretty decent battery. I get around that too. What kernel are you running?
Sent from my Galaxy S3
The average is about 3.5 hours of screen on time. So its not bad and its not great.
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TheKucho said:
I'd say that's pretty decent battery. I get around that too. What kernel are you running?
Sent from my Galaxy S3
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I'm on Ktoonez! Using ktoonservative with row.
This battery life is pretty nice for me. Ive always used ktoones, I'm sure it's the Rom!
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Nabeel10 said:
Hey everyone!
I just want to know what you guys think of my battery life, I think it's pretty decent but I'd like to hear your input! Thanks
I'm on illusion v2.0
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Click to collapse
what rom is that?
Nabeel10 said:
I'm on Ktoonez! Using ktoonservative with row.
This battery life is pretty nice for me. Ive always used ktoones, I'm sure it's the Rom!
Sent from my SAMSUNG-SGH-T999 using xda premium
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If you remove Juice Defender and make some changes yourself, the battery will probably get better. That's why I asked to see a BBS log. Seems pretty mediocre to me. Not trying to #1 on your parade. If you're happy, that's all that matters.
It's been a while since I've paid much attention to mine, but a few months back I was easily getting roughly 4+ hours screen on time and 27 or so hours overall.
This was rooted stock firmware, stock kernel.
Read woodys battery thread. It may help you out. But like Aerowinder said, as long as you're happy with it, that's all that matters. Your battery life is certainly not bad, so if you've got things set up how you like, and you don't find yourself running low at bad times, you may not want to mess with it too much.
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Aerowinder said:
If you remove Juice Defender and make some changes yourself, the battery will probably get better. That's why I asked to see a BBS log. Seems pretty mediocre to me. Not trying to #1 on your parade. If you're happy, that's all that matters.
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Sorry I don't know what a BBS log is :/
And I understand juice defender is an ongoing service that affects battery, but wouldn't the fact that it cuts data when the screen is off be better?
If juice defender takes up more battery by running than by data continuing to run at screen off, then I may change...
Nabeel10 said:
Sorry I don't know what a BBS log is :/
And I understand juice defender is an ongoing service that affects battery, but wouldn't the fact that it cuts data when the screen is off be better?
If juice defender takes up more battery by running than by data continuing to run at screen off, then I may change...
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Click to collapse
Bbs= Better Battery Stats
Like I said, read Woodys thread. The majority of questions you wind up coming up with here, are already answered there. Including info about bbs and juice defender.
Lol! No gettin outta this one! You just gotta be willing to read.
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