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[Q] just got the Nexus S 4G. should i stick with stock?

Hey everyone, i just upgraded to a Nexus S 4G this morning from the ol samsung transform, and i was planning on applying cyanogen but then i messed with the phone a bit, did root and restored a couple of my game apps...it seems to work with very nice speed, only serious issues ive noticed are just with the signal, sensitivity of keyboard, and i havnt had time to see battery life yet..
But i was wondering, since the stock rom is so clean and fast, why are we putting on different roms like cyanogen?
More importantly, as far as kernel, whats the best kernel right now for nexus 4g? im running stock kernel, but naturally and ideally id like even more speed(not sure what id use it for, but always nice), better battery life, and better data signals..
ive been reading about overclocked kernels a little bit and such, so basically im wondering about what you guys would say to all this? should i change rom &/Or kernel? to what? why? does overclocking at 1.4ghz like these kernels say have any negative side effects? things like that.
Thanks for your response!
~ Master Ramy

Master Ramy said:
Hey everyone, i just upgraded to a Nexus S 4G this morning from the ol samsung transform, and i was planning on applying cyanogen but then i messed with the phone a bit, did root and restored a couple of my game apps...it seems to work with very nice speed, only serious issues ive noticed are just with the signal, sensitivity of keyboard, and i havnt had time to see battery life yet..
But i was wondering, since the stock rom is so clean and fast, why are we putting on different roms like cyanogen?
More importantly, as far as kernel, whats the best kernel right now for nexus 4g? im running stock kernel, but naturally and ideally id like even more speed(not sure what id use it for, but always nice), better battery life, and better data signals..
ive been reading about overclocked kernels a little bit and such, so basically im wondering about what you guys would say to all this? should i change rom &/Or kernel? to what? why? does overclocking at 1.4ghz like these kernels say have any negative side effects? things like that.
Thanks for your response!
~ Master Ramy
Click to expand...
Click to collapse
There are quite a lot of things that can be changed by flashing a custom ROM. Cyanogen is reported to be more responsive than stock android, and a slight improvement on battery life and performance. Also, with other ROMs like MIUI you can completely change the entire GUI basically. The lockscreen becomes changeable by one click in the themes app. I've also noticed a slight improvement in battery life/performance and responsiveness.
Also, with regards to kernels, they add extra features (like voodoo sound, BLN notifications, UV'ing, OC'ing, etc). Now if you're looking to overclock your CPU AND save on battery life then that is probably not going to happen. If you OC the CPU you'll as a result draw more battery power when it reaches it's peak. Hence why I went with the TEUV88 kernel. This kernel undervolts the CPU yet manages to give me the same performance as the stock kernel. It runs extremely nicely and the battery lasts me about 24-30 hours on moderate usage where as before I was getting around 16.
Hope this helps.
Edit:: note that both undervolting and overclocking can be dangerous for any phone. The kernel developers put their kernels through testing though to ensure they are stable enough for most people (I hope anyways). But be aware that it is possible to damage the hardware be either of these methods.

yeah im looking at more undervolting for battery life cause current performance seems great for me as of this point. but i mean cyanogenmod doesnt change much since its built on gingerbread, its just slightly more customized, but on the actual performance side, it is a slight increase? so whats the best kernel for undervolting and still getting stock performance or more? im guessing its the one u just mentioned? cause i saw a voodoo kernel or something on main dev page and itwas undervolted and OCed to 1.4 i think...idk.

Yeah you might be talking about the matr1x kernel. It ocs to 1.44 and is uved also. Plus has voodoo sound, bln and bld. Some people have issues with cm7 and some don't. I really don't like the look of miui so I can't say for it. But I use decks 1.3d with zero issues and matr1x kernel with zero issues along with heavy use 4+ hrs screen time in over 12hrs. Personally running 1.44 your phone will prolly lock up but I run 1.2 non stop no freezes or lockups or reboots. Try them and see qhich ones fit you and what you like.
Sent from my Nexus S 4G using XDA App

I'm still on stock with mine and honestly, I don't need anything else... i get 12-15 hours of moderate use and i don't really know what lag is because i never experience it with my phone.

The above posters are correct in everyway. I mean it definitely comes down to preference. I was averaging about 13-15h on my stock kernel/rom but my phone would be basically completely dead.
I switched to TEUV88-rammstein2 (Trinity Undervolted rom). It has Voodoo sound, BLN (backlight notification), and with todays update it has touchwake mod. So as you can see my phone lasted 15h (still with 35% battery left) with 3h of screen on, and 45m of audio streaming, and lots of texting.
Check out my post: http://forum.xda-developers.com/showpost.php?p=17108560&postcount=3154

22hrs Std. Battery on GB and Sense 3.0 = YES!

OK, so I know there has been a lot of b*tching about the Tbolt battery life, especially if you are running Gingerbread and a Sense 2.1 or 3.0 ROM (I am running BAMF 3.0 R4.9). I just may have solved this issue when you can connect to a WiFi access point!
Using a program called Tasker, I have created specific profiles that actually help save my battery as well as do a lot of other things to make life easier. The learning curve is somewhat steep for non-Tech geeks, but it's not too difficult after you get the hang of it. (I think the only version of Tasker in the market is pay for use, but you can get a free trial from the Dev's website directly.)
On to how I can get a 22+ hour standard TBolt battery:
1st new profile:
-Called "WiFi"
-Context = WiFi Connected (Any SSID)
-Task = NET>WiFi Sleep>Never
2nd new profile:
-Called "Dim Screen"
-Context = Power Source Any, click "Invert" button (so when the phone is not charging).
-Task = Display>Display Brightness>Set to "20" and check "Immediate Effect" (you can certainly change it to something higher, but you may not get nearly the same battery life).
On WiFi, I can get almost 23 hours of battery. On 4G, I can get upwards of 8 hours, 3G I have yet to test.
Since LTE was just turned on near where I live, I noticed that my TBolt was making WiFi sleep while it sat in my pocket not in use, therefor switching to 4G/LTE and draining the battery. The brightness obviously helps when I am not plugged in no matter if I am 3G/4G/WiFi.
I have some other useful profiles setup. Like I have the phone screen go to Auto Brightness and into the Sense Dock Mode when the phone is charging. My favorite is the Car Dock Profile... when the phone goes into my Car Dock, the Bluetooth turns on, GPS goes on, and Google Music Starts.
I am a big fan of Tasker now... there are a lot of possibilities with the program!

WorldOfJohnboy said:
OK, so I know there has been a lot of b*tching about the Tbolt battery life, especially if you are running Gingerbread and a Sense 2.1 or 3.0 ROM (I am running BAMF 3.0 R4.9). I just may have solved this issue when you can connect to a WiFi access point!
Using a program called Tasker, I have created specific profiles that actually help save my battery as well as do a lot of other things to make life easier. The learning curve is somewhat steep for non-Tech geeks, but it's not too difficult after you get the hang of it. (I think the only version of Tasker in the market is pay for use, but you can get a free trial from the Dev's website directly.)
On to how I can get a 22+ hour standard TBolt battery:
1st new profile:
-Called "WiFi"
-Context = WiFi Connected (Any SSID)
-Task = NET>WiFi Sleep>Never
2nd new profile:
-Called "Dim Screen"
-Context = Power Source Any, click "Invert" button (so when the phone is not charging).
-Task = Display>Display Brightness>Set to "20" and check "Immediate Effect" (you can certainly change it to something higher, but you may not get nearly the same battery life).
On WiFi, I can get almost 23 hours of battery. On 4G, I can get upwards of 8 hours, 3G I have yet to test.
Since LTE was just turned on near where I live, I noticed that my TBolt was making WiFi sleep while it sat in my pocket not in use, therefor switching to 4G/LTE and draining the battery. The brightness obviously helps when I am not plugged in no matter if I am 3G/4G/WiFi.
I have some other useful profiles setup. Like I have the phone screen go to Auto Brightness and into the Sense Dock Mode when the phone is charging. My favorite is the Car Dock Profile... when the phone goes into my Car Dock, the Bluetooth turns on, GPS goes on, and Google Music Starts.
I am a big fan of Tasker now... there are a lot of possibilities with the program!
Click to expand...
Click to collapse
I'm gonna say you might want to try a MUCH more modern ROM. I'm having very little trouble eeking 18 hours out of mine under moderate use, and well over a day if I'm not messing with it much. It will typically consume around 1.7% per hour unused, LTE on.

WorldOfJohnboy said:
OK, so I know there has been a lot of b*tching about the Tbolt battery life, especially if you are running Gingerbread and a Sense 2.1 or 3.0 ROM (I am running BAMF 3.0 R4.9). I just may have solved this issue when you can connect to a WiFi access point!
Using a program called Tasker, I have created specific profiles that actually help save my battery as well as do a lot of other things to make life easier. The learning curve is somewhat steep for non-Tech geeks, but it's not too difficult after you get the hang of it. (I think the only version of Tasker in the market is pay for use, but you can get a free trial from the Dev's website directly.)
On to how I can get a 22+ hour standard TBolt battery:
1st new profile:
-Called "WiFi"
-Context = WiFi Connected (Any SSID)
-Task = NET>WiFi Sleep>Never
2nd new profile:
-Called "Dim Screen"
-Context = Power Source Any, click "Invert" button (so when the phone is not charging).
-Task = Display>Display Brightness>Set to "20" and check "Immediate Effect" (you can certainly change it to something higher, but you may not get nearly the same battery life).
On WiFi, I can get almost 23 hours of battery. On 4G, I can get upwards of 8 hours, 3G I have yet to test.
Since LTE was just turned on near where I live, I noticed that my TBolt was making WiFi sleep while it sat in my pocket not in use, therefor switching to 4G/LTE and draining the battery. The brightness obviously helps when I am not plugged in no matter if I am 3G/4G/WiFi.
I have some other useful profiles setup. Like I have the phone screen go to Auto Brightness and into the Sense Dock Mode when the phone is charging. My favorite is the Car Dock Profile... when the phone goes into my Car Dock, the Bluetooth turns on, GPS goes on, and Google Music Starts.
I am a big fan of Tasker now... there are a lot of possibilities with the program!
Click to expand...
Click to collapse
how do you get the GPS to enable? I've tried to set up my GPS to come when I open maps, navigation or anything that needs gps enable but I get "sorry that action is unavailable on this device."

Llama also does what Tasker does. And its free. I find that Llama works better too. I can get near 24 hours with everything stock.

loonatik78 said:
I'm gonna say you might want to try a MUCH more modern ROM. I'm having very little trouble eeking 18 hours out of mine under moderate use, and well over a day if I'm not messing with it much. It will typically consume around 1.7% per hour unused, LTE on.
Click to expand...
Click to collapse
Modern? The ROM I have is running Gingerbread and is full Sense 3.0 (which appears to be a big battery hog). When I was on a GB Sense 2.1 ROM from the same Dev, I was getting better battery. The only thing that may improve the battery any more on GB/Sense 3.0 would be a new and improved Kernel, though I think I am on one of the more stable ones.

warmonster said:
how do you get the GPS to enable? I've tried to set up my GPS to come when I open maps, navigation or anything that needs gps enable but I get "sorry that action is unavailable on this device."
Click to expand...
Click to collapse
You are right, my bad... it throws up a disclaimer that GPS enabling is not available on any 2.3 ROM because of the Pop-up. They suggest using Cyanogen (sp) if you want to use the feature on a 2.3 ROM.

andydumi said:
Llama also does what Tasker does. And its free. I find that Llama works better too. I can get near 24 hours with everything stock.
Click to expand...
Click to collapse
Potato, Patahto. I like Tasker and found it really granular once I started playing with it. I don't mind paying for an app that is well Developed and supported. (If you like Llama that much, you should use the donate version to "thank" the Dev team!) The 23hrs is an estimated capacity right now as Battery Left is still calibrating.

WorldOfJohnboy said:
Modern? The ROM I have is running Gingerbread and is full Sense 3.0 (which appears to be a big battery hog). When I was on a GB Sense 2.1 ROM from the same Dev, I was getting better battery. The only thing that may improve the battery any more on GB/Sense 3.0 would be a new and improved Kernel, though I think I am on one of the more stable ones.
Click to expand...
Click to collapse
I think he is refering to roms based off the 2.11 leak. battery life in that Ruu is much better than any other previous ruu. Any roms based off it will give you more life by default. The bamf 4.9 Rom is kinda old when your talking about custom roms and it isn't based on the 2.11 ruu.
Sent from my ADR6400L using xda premium

WorldOfJohnboy said:
Modern? The ROM I have is running Gingerbread and is full Sense 3.0 (which appears to be a big battery hog). When I was on a GB Sense 2.1 ROM from the same Dev, I was getting better battery. The only thing that may improve the battery any more on GB/Sense 3.0 would be a new and improved Kernel, though I think I am on one of the more stable ones.
Click to expand...
Click to collapse
You say BAMF 3.0 R4.9 is your ROM. This ROM is old, based upon the 2.01 GB leak (which is about 4 leaks ago), which was terribly flawed in many ways, and isn't even being developed by BAMF anymore. The newer kernels won't even work right on that ROM because aspects of the WiFi and camera have been changed in later leaks.
You're application of Tasker is probably one of the ONLY rational uses of such an app. Using it for such things as turning GPS on and off is pointless, and redundant, because Android already does that as long as you have GPS enabled. Having it enabled doesn't use any power unless you're using apps that abuse it, such as some of the traffic update apps that constantly update your position.
Power management apps aren't quite as useless as task killer apps, but for the purposes I see people use them for, they're not doing you many favors. I'm generally not a fan of these apps and I strongly recommend against task killers because the result of their use simply increases the amount of NAND reads the CPU must make, which is the most power intensive operation that CPU performs.
Newer ROMs, such as the RUU 2.10 and 2.11 based ROMs, are significantly better on battery life than the older ones, especially when used with the radios from the 1.70 OTA, 2.07 RUU, 2.10 RUU, and 2.11 RUU. I'd make the jump to a more modern ROM before I tried manipulating an older one to perform. Or, move up to a newer one and do the same thing and see what you get. In any event, there's good room for improvement.

I tried several ways to conserve battery and finally decided that it just isn't worth it to me to have to stop running game apps, to have to set the phone up a specific way, to carefully monitor what each app does etcetera. I went out Tuesday and bought a extended battery from a Verizon store. With discount I paid $25.00 for the battery and cover. I am now getting right around twenty five hours total battery life off one charge and I have watched videos, played games, played music, and did whatever else I could think of to kill that battery. I am ecstatic with it. Now when I am out overnight mountain climbing with the missus granted I will undoubtedly kill some apps. Wouldn't do to run into BigFoot, Smokey the Bear, and Jason Vorhies with a dead battery and no chocolate bars ( since she for some reason feels I should diet) now would it?
ps. I made sure it had antennaes on the cover. It has more than my original cover does. And the clerk had no clue why i was even asking about the antenaes on the cover

TDubKong said:
I tried several ways to conserve battery and finally decided that it just isn't worth it to me to have to stop running game apps, to have to set the phone up a specific way, to carefully monitor what each app does etcetera. I went out Tuesday and bought a extended battery from a Verizon store. With discount I paid $25.00 for the battery and cover. I am now getting right around twenty five hours total battery life off one charge and I have watched videos, played games, played music, and did whatever else I could think of to kill that battery. I am ecstatic with it. Now when I am out overnight mountain climbing with the missus granted I will undoubtedly kill some apps. Wouldn't do to run into BigFoot, Smokey the Bear, and Jason Vorhies with a dead battery and no chocolate bars ( since she for some reason feels I should diet) now would it?
ps. I made sure it had antennaes on the cover. It has more than my original cover does. And the clerk had no clue why i was even asking about the antenaes on the cover
Click to expand...
Click to collapse
Reps are pretty clueless, in general. They're sales people and that's about it. That's what cracks me up when I see these goofy "corporate memos" that supposedly when out to stores with stuff like RUU and radio version numbers on them. Like the geek behind the counter actually knows any of that???

loonatik78 said:
Reps are pretty clueless, in general. They're sales people and that's about it. That's what cracks me up when I see these goofy "corporate memos" that supposedly when out to stores with stuff like RUU and radio version numbers on them. Like the geek behind the counter actually knows any of that???
Click to expand...
Click to collapse
Yea tell me about it. At the Verizon kiosk in Costco I actually argued with the guy because he was spouting off about the Specs on AT&T phones being better than what were on the Thunderbolt. Saying how much better AT&T was and all this stuff. I listened for only a few minutes before I realized he was an imbecile. He was just throwing out things that made him sound like he knew what he was talking about. And yea you read that right. This brain fart of a human being was promoting AT&T from a Verizon kiosk

TDubKong said:
Yea tell me about it. At the Verizon kiosk in Costco I actually argued with the guy because he was spouting off about the Specs on AT&T phones being better than what were on the Thunderbolt. Saying how much better AT&T was and all this stuff. I listened for only a few minutes before I realized he was an imbecile. He was just throwing out things that made him sound like he knew what he was talking about. And yea you read that right. This brain fart of a human being was promoting AT&T from a Verizon kiosk
Click to expand...
Click to collapse
Further proving Einstein's point... The difference between genius and stupidity is that genius has it's limits.

loonatik78 said:
You say BAMF 3.0 R4.9 is your ROM. This ROM is old, based upon the 2.01 GB leak (which is about 4 leaks ago), which was terribly flawed in many ways, and isn't even being developed by BAMF anymore. The newer kernels won't even work right on that ROM because aspects of the WiFi and camera have been changed in later leaks.
Click to expand...
Click to collapse
If you can point me to a ROM that has full Sense 3.0 and the latest GB leak, please point me in that direction.
You're application of Tasker is probably one of the ONLY rational uses of such an app. Using it for such things as turning GPS on and off is pointless, and redundant, because Android already does that as long as you have GPS enabled. Having it enabled doesn't use any power unless you're using apps that abuse it, such as some of the traffic update apps that constantly update your position.
Click to expand...
Click to collapse
Considering I do use a bunch of Apps that can use GPS (Foursquare, Weather, and my Car Dock=Car Home) and I don't always need GPS on to do what I do in them, I choose to have GPS inactive as to not chew up more battery than is necessary.
Power management apps aren't quite as useless as task killer apps, but for the purposes I see people use them for, they're not doing you many favors. I'm generally not a fan of these apps and I strongly recommend against task killers because the result of their use simply increases the amount of NAND reads the CPU must make, which is the most power intensive operation that CPU performs.
Click to expand...
Click to collapse
I have never and will never use a task killer. Tasker is basically a way to create a 'macro' or series of them to help do things without having to click 18 different things on your phone. Apples to oranges.
Newer ROMs, such as the RUU 2.10 and 2.11 based ROMs, are significantly better on battery life than the older ones, especially when used with the radios from the 1.70 OTA, 2.07 RUU, 2.10 RUU, and 2.11 RUU. I'd make the jump to a more modern ROM before I tried manipulating an older one to perform. Or, move up to a newer one and do the same thing and see what you get. In any event, there's good room for improvement.
Click to expand...
Click to collapse
As I said, if there is a viable full Sense 3.0 ROM with the latest RUU out there, please let me know what it is. Until that happens, I will use Tasker to fix the flaws that exist in my current RUU/ROM.

loonatik78 said:
You say BAMF 3.0 R4.9 is your ROM. This ROM is old, based upon the 2.01 GB leak (which is about 4 leaks ago), which was terribly flawed in many ways, and isn't even being developed by BAMF anymore. The newer kernels won't even work right on that ROM because aspects of the WiFi and camera have been changed in later leaks.
Click to expand...
Click to collapse
Really...newer kernels don't work with BAMF 3.0 RC4.9??? That's funny because I'm running Ziggy's latest on BAMF 3.0 RC4.9 with working WiFi and camera, front and back.
Out of all the 3.0, 2.1/3.0 ROM's this is the only one that I have never missed a call because I could not answer the phone because of the end only call bug.
It might be an older ROM but it's still one of the best for this phone.

UberBAMF, Adrynalyne's side-project BAMF, both of the Gingeritis ROMs, Th3ory's ROMs, Synergy... Where the Ziggy kernel came from. Maybe I'm wrong and 4.9 uses the 2.07 base. I've used nothing but 2.07 and newer Chingy ROMs for the last 2 months as daily drivers and I've never once seen this "end call only" bug.
Ziggy's kernels aren't freely available so I don't consider it an available custom kernel.

loonatik78 said:
UberBAMF, Adrynalyne's side-project BAMF, both of the Gingeritis ROMs, Th3ory's ROMs, Synergy... Where the Ziggy kernel came from. Maybe I'm wrong and 4.9 uses the 2.07 base. I've used nothing but 2.07 and newer Chingy ROMs for the last 2 months as daily drivers and I've never once seen this "end call only" bug.
Ziggy's kernels aren't freely available so I don't consider it an available custom kernel.
Click to expand...
Click to collapse
Anyone that downloads Gingeritis, or Synergy has full access to Ziggy's kernels. I would call that freely available. Either which way they still work on BAMF 3.0 RC4.9.
As for the ROM's you listed not one of them are a full Sense 3.0 ROM like RC4.9.
If you have never had the end only call bug consider yourself lucky because there are theads on both themikmik and team BAMF about this bug.
Sent from my ADR6400L using XDA App

End-call only bug is real. In 2 months of running bamf (currently on uber 3), I've encountered it once. Others have been plagued with it. Basically, when someone calls, it only displays the large "end call" button.
Sent from my ADR6400L using XDA App

bp328i said:
Anyone that downloads Gingeritis, or Synergy has full access to Ziggy's kernels. I would call that freely available. Either which way they still work on BAMF 3.0 RC4.9.
As for the ROM's you listed not one of them are a full Sense 3.0 ROM like RC4.9.
If you have never had the end only call bug consider yourself lucky because there are theads on both themikmik and team BAMF about this bug.
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
I hardly call Ziggy's kernel freely available by any stretch of the imagination. That's like saying iOS is free to anyone to use. Not really if you ONLY get it with this product or that! Ziggy also flouts the GPL like it's no big deal, so obtaining his source is nigh impossible. He's got one of the least available kernels that exists.

Sense 3.0 is eye candy. Like live wallpaper, its cool for a day, that's about it. And Rosie launcher is weak. I mean, if that's your thing, cool. It's your phone. But AOSP roms are far beyond BAMF, and far more stable. Shift B2 is the best rom I've run on my Bolt, hands down. With G+ loaded I get between 18-22 hours moderate use. Without G+ I can get a little over 28 hours. This is all 3G, as our towers havent been upgraded yet here in BFE. I understand the desire for battery life on stock battery. I pocket mine for 8 hours a day, so extended battery is unappealing. I underclock to 768 and my phone is still more responsive than it was with sense at 1.4.

[Q] Best rom + Kernel for battery life??

Hey, Just wondering what would you guys say is the best rom for + kernel for battery life that also isn't stupidly slow.. Oh and by battery life i don't mean like upkeep time i mean like basing it on screen on time like what roms can get 4+hours screen on time?
Cheers

stock rom 4.04

Oh and what kernel is better for Rascream rom Trinity or Matrix cause i don't really know much about rascream as i just started using it.

I'm able to squeeze over four hours of screen on time from most ROMs providing I don't reboot and minimise my modem usage. I'm currently using Pete Alfonso's Gingerbread kernel and Blandriid 2.3.7.
But I keep trying alternatives...

Yeah Atm i'm using latest Rascream with TEUV kernel and not sure atm but battery seems okay?

The biggest battery eater is the screen so try brainmaster's black cm9. It's about the only thing you can do apart from obviously keeping your screen brightness at minimum is put your phone in airplane mode when feasible. Nothing else will make much difference.

For GB i have to say, Oxygen 2.3.2 with Matr1x 11.0
As for ICS, i've yet to come across one, I do, however have fond memories of aosp+

To supplement bedalus' post: to base battery life on kernel+rom combination alone does not tell much of a story. I got the most out of my battery when I - used a pure black and static wallpaper, turned off auto brightness and manually tuned down to 10%-ish, kept apps and processes at a minimum (reduced app drawer to a single page, mostly stock). To reiterate, kernel+rom alone give few tangible differences when comparing battery life, from personal experience.

I use Matrix Kernel v19 and CyanogenMod v7. 24 hrs with light use, 12 hrs with heavy use.

used to use milestone 4 with air kernel.
use the latest version of both rom and kernel and set 200-1000.
you will see the difference and if you want to save more battery after following as above, then reply me.

I haven't really noticed a difference between ROMs. As stated a few posts above, the kernel and ROM themselves will only give a few minor boosts. Black vs white screens makes a world of difference. I use the inverted browser a lot and a majority of my apps tend to have dark themes which I personally prefer. Daily use, 3 or so hours of screen on time with the phone off the charger for 12-14 hours. It all varies on how I use my phone though on that particular day.

Ways to increase battery life?

My wife uses a rooted Bolt running Virus' Eternity ROM with Sense 3.5. I'm open to trying new ROMs and other less drastic measures as well. I've thought about switching to an AOSP ROM that might free up more memory. I personally use Liquid Smooth and have been trying tweaks to see if my battery life improves before trying to change hers. She uses the FM Radio a lot at work which is the primary culprit of her battery consumption. It's generally fully dead after 6 hours. What options do I have that might increase that life a little longer?

You may wanna take a look at THIS THREAD

Thank you much. I'm not sure how I've missed that thread as I've spent a good bit of time on those forums as well looking at different tweaks.

Android Experts Only - Battery Drain

Okay, I'm officially sick of battery drain. My first time with this issue was after flashing CM10, my GB build before that gave me the perfect amount of battery life. My phone would last throughout the day on GB. I got sick of the drain on CM10 after a week and flashed GB back to my device. My battery life has been normal the past few months on GB.
Since the official ICS builds were released I've been using ICS. I first flashed V28, battery drain was just like CM10. I flashed GB back and battery went back to normal. The next day official AT&T V30B was released, so I flashed it. Battery drain came back again.
Every single rom above GB has caused battery drain for my device. I've tried every suggested method I could find online. Flashing a different kernel, setting CPU Governor to hotplug, using nstools. I've done everything. I keep my phone in airplane mode, auto-sync is turned off, my brightness is at the lowest setting, gps and location settings are set to off, bluetooth is also off. I've tried charging the battery fully, pulling the battery out for a minute, charging fully again, pulling it again, charge some more, that didn't help at all.
My battery is dropping 10% in 15 minutes and all I have open is the web browser. This never happens on GB, no matter when I flash it. I don't understand what the issue is. I've also fully wiped my device internally and externally. I've spent a couple of hours trying to find an answer but nothing helps. If you can assist me, please take a minute and do so, this is frustrating. Thanks in advance.

Well generally yes. ICS+ drains a lot more battery than GB for a reason. Its running many more system apps and this can put a strain on battery life with the system working that hard "While Sleeping too". If you really cant take the drain.. Order and extended battery online. I suggest checking out the Accessory section. Good luck!
Sent from my R800i using xda app-developers app

Greenify + betterbatterystats
Two great apps that will help with battery life

Am i the only one getting significantly BETTER battery life on ICS?

mchartier said:
Am i the only one getting significantly BETTER battery life on ICS?
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Click to collapse
No. You are not. ICS consume much less battery due to the better RAM organization and memory killer. Just in many ROMs there is too much stupid programs and in many KERNELs are not optimized. Moreover people compare all data switched off of GB and the many process running by default in ICS that they can switch off.
The ROM/Kernel combination (by Acura) in my signature give me 48h battery life - the same like the GBs by Acura or Darkroom Team.
So... it is better not to compare STOCK GB with STOCK ICS - you never know the tweaks and running stuff by default. Better compare Developer GB with the SAME developer ICS ROM if you want to claim such a think.

AW: Android Experts Only - Battery Drain
mchartier said:
Am i the only one getting significantly BETTER battery life on ICS?
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No, mine is better, too.
Sent from my LG-P920 using xda app-developers app

mchartier said:
Am i the only one getting significantly BETTER battery life on ICS?
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Me too, at least comparing the stock GB with the stock ICS.
There's no use of comparing custom ROMs/kernels anyway.

botson71 said:
Me too, at least comparing the stock GB with the stock ICS.
There's no use of comparing custom ROMs/kernels anyway.
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nope. other way around. you never know what kind of sh*t is on is in STOCK, and you know that custom (developers) ROM are clean form most of them and tweaked for performance and battery. Stock mean ... "tweaked" and filled with bloatware by LG - nothing more.

p-vlad said:
nope. other way around. you never know what kind of sh*t is on is in STOCK, and you know that custom (developers) ROM are clean form most of them and tweaked for performance and battery. Stock mean ... "tweaked" and filled with bloatware by LG - nothing more.
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True about the custom roms but you missed my point about the stock roms.
When someone claims for example that "the new xxx rom for my phone is worse/better than the old yyy rom", you have to ask "under what conditions". And in order to make a reasonable and reliable comparison, you need to compare the old and new stock roms and run the battery benchmarks only on those.
This is exactly what the biggest tech sites and magazines do when comparing the batteries. They run the tests on STOCK conditions/roms with as few apps as possible, apart of the stock apps.
Battery comparison is a delicate business. For example, even if you have the same two phones with the same stock roms, if the one phone receives a weaker 2G/3G or WiFi signal, its battery will finish much faster than the other one.
And if you start adding apps, changing to custom roms, kernels, radios and bootloaders then you have far too many factors in order to make a reliable comparison.

Okay, I tried geenify and bbs on a full charge and experienced no changes. My battery is dying quickly as we speak. My battery went from 81% to 34% in 5 1/2 hours in idle. I don't see how I'm having this issue and everyone else isn't.

botson71 said:
True about the custom roms but you missed my point about the stock roms.
When someone claims for example that "the new xxx rom for my phone is worse/better than the old yyy rom", you have to ask "under what conditions". And in order to make a reasonable and reliable comparison, you need to compare the old and new stock roms and run the battery benchmarks only on those.
This is exactly what the biggest tech sites and magazines do when comparing the batteries. They run the tests on STOCK conditions/roms with as few apps as possible, apart of the stock apps.
Battery comparison is a delicate business. For example, even if you have the same two phones with the same stock roms, if the one phone receives a weaker 2G/3G or WiFi signal, its battery will finish much faster than the other one.
And if you start adding apps, changing to custom roms, kernels, radios and bootloaders then you have far too many factors in order to make a reliable comparison.
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Click to collapse
"biggest tech sites and magazines" do PAID "comparisons" from A to Z. Do not trust any of them. Better compare best of X with best of Y. Or worse of X with the worse of Y. Like a scientist and like computer overclocker I know what means "Average" values.... there is no such a think. As i said - stock is just made by somebody... that is all... and here the developers are better. Moreover you do not know the current person how install the "Stock" Rom. If he did reset, if he still is on ext3 or on ext4. Does the person did a hard reset or not. Does still keep old baseband by installing the simple BIN or the BIN with baseband or the KDZ (bin+bb). different basebands different signal power etc etc etc... thats why i said BG of X with the ICS of X developer - they use nearly the same tweaks in all Roms with additions.

I had battery drain problem on all roms since GB untill v28b.
I lose about 1-2% during the night with wifi always on..I mean really always ON.[Thats 2% during 8h of sleep, on darkroom v2 i had 35% loss]
During the day my battery can last around 12h-15h..
My other,extended battery 3500mAh makes things a lot easier for gaming. I recharge them during the night and woooo..
V28b is the best rom and you should try flashing kdz with Mobile support tool like this:
http://p92x.acidhazardrom.com/guides/lg_flash_tool.html
There have been problems while flashing bin and fls but you never know, it's different for any user.
The second thing you should do is to erase or freeze any system app that you don't use.
For example I erased adrenalin6,gtalk,lg apps,........... and left only the apps that I really need.
I'm on stock v28b with the stock kernel and I have no problems.
And buy a new battery, maybe that's the problem..They are cheeeeep.

me to i have a very good lif batterie after flashe 28b i sharge it 100% wifi 3or 4 h day blut 1h day ande calls lyck always
for 1 day in GB v21e at 19:00 may batteri is in 20 or 15% CHARGE
in v28b for 1 day at 19:00 may batteri is in 55 or 50% CHARGE
send from my LG p920 ics v28b

Android1993 said:
Okay, I tried geenify and bbs on a full charge and experienced no changes. My battery is dying quickly as we speak. My battery went from 81% to 34% in 5 1/2 hours in idle. I don't see how I'm having this issue and everyone else isn't.
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That is too much loss IF what you say is correct that your phone is idle..
My O3D with wifi on and ICS during nighttime goes from 100% to 95% and btw my battery is the original that i bought with the phone back in the summer of 2011.
It doesnt run on stock ROM but it does run on stock kernel for now...
And btw guys forget about magazine tests and such BS because they are just promoters...
Never compare STOCK ROMS with CUSTOM ROMS because custom ROMS will always be better than STOCK, thats the way its meant to be.

xbsall said:
That is too much loss IF what you say is correct that your phone is idle..
My O3D with wifi on and ICS during nighttime goes from 100% to 95% and btw my battery is the original that i bought with the phone back in the summer of 2011.
It doesnt run on stock ROM but it does run on stock kernel for now...
And btw guys forget about magazine tests and such BS because they are just promoters...
Never compare STOCK ROMS with CUSTOM ROMS because custom ROMS will always be better than STOCK, thats the way its meant to be.
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Click to collapse
I reverted back to GB, factory reset, now I'm flashing V30B one last time, I'll do a factory reset upon starting it up. Let's see if whatever has been broken the last 3 times gets fixed.
UPDATE: I think I got down to the issue. The phone isn't correctly reading the battery. I did a shut down and reboot and it went from 93% to 86% , I then plugged it in, shut it down and reboot again and it read 100%.
I'm done. I'll probably stick with GB til I get a new device.

p-vlad said:
"biggest tech sites and magazines" do PAID "comparisons" from A to Z. Do not trust any of them. Better compare best of X with best of Y. Or worse of X with the worse of Y. Like a scientist and like computer overclocker I know what means "Average" values.... there is no such a think. As i said - stock is just made by somebody... that is all... and here the developers are better. Moreover you do not know the current person how install the "Stock" Rom. If he did reset, if he still is on ext3 or on ext4. Does the person did a hard reset or not. Does still keep old baseband by installing the simple BIN or the BIN with baseband or the KDZ (bin+bb). different basebands different signal power etc etc etc... thats why i said BG of X with the ICS of X developer - they use nearly the same tweaks in all Roms with additions.
Click to expand...
Click to collapse
You missed my point again.
Of course the good tweaked custom roms/kernels etc are far better than any stock roms, and not only in battery life, there's absolutely no question about that.
But when someone claims "the ICS rom has better/worse battery than the GB rom" it's much easier and more reliable to compare the ICS/GB stock roms than the custom roms, because of the much fewer degrees of freedom.
In a nutshell:
-Comparing, e.g., GB 21E stock rom with the ICS 28B stock rom: easy.
-Comparing, e.g., GB 21E custom rom which has different tweaks/kernels etc with an ICS custom rom which has again different tweaks/kernels etc: not so easy.

I'm having the same battery drain problem with mine too. Its driving me crazy to have to charge my phone 2-3 times a day
Sent from my LG-P925 using xda app-developers app

botson71 said:
You missed my point again.
Of course the good tweaked custom roms/kernels etc are far better than any stock roms, and not only in battery life, there's absolutely no question about that.
But when someone claims "the ICS rom has better/worse battery than the GB rom" it's much easier and more reliable to compare the ICS/GB stock roms than the custom roms, because of the much fewer degrees of freedom.
In a nutshell:
-Comparing, e.g., GB 21E stock rom with the ICS 28B stock rom: easy.
-Comparing, e.g., GB 21E custom rom which has different tweaks/kernels etc with an ICS custom rom which has again different tweaks/kernels etc: not so easy.
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Click to collapse
i got your point but....
lets hypothetically say:
1. Stock ROM GB give 75% of the max possible (best score of LG developers for 2 years developing from v. 10A to 21E). Stock ROM ICS 50% of the max possible (best score of LG developers for first leaked ROM)
2. Custom ROM GB - 99-99-99% of the max possible (best for developers A1, A2, A3). Custom ROM ICS 96-98-99% of the max possible (best for developers A1, A2, A3)
so...witch you think is better to compare - 50 with 75 from the max possible ("max possible" is the key phrase for speed, battery etc.) for LG
or comparing 98 with 99 for each GB or ICS custom... i would compare the last one. if 98 for GB is 16h and 99 for ICS is 14h ... then OK. GB is better. but not by original LG roms.
that is my point.

And another O3D tale...without happy end ;(
1.) Stock GB under heavy use (more then 3 hours of SMS, games & WiFi over the day) = A battery life of 13-19 hours
2.) Stock ICS v30a under minimal use (some SMS, little gaming and WiFi) = A battery life of approx. 10 hours
3.) Stock ICS v30a + ROOT, nearly no use at all over the day, no WiFi, (just 3 SMS) = A battery life of 7 hours.
After 2 hours in my jeans pocket = 68% of battery left
After 7 hours in ma jeans pocket = 8% of battery left (just 3 SMS written)
Then I read "Battery Re-Calibration" is of no use...and did not try it.
Then I read TaskKillers are nearly useless and un-installed "Advanced Task Killer"...didnt help. Re-Installing it didnt help either.
What is goin on here ?

May I suggest to check the CPU VRM (voltage regulator module) setting? I found out why, undervolting the CPU solved my problem. Voltage = ampere due to either linear and/or switchmode voltage regulator design.
EDIT: To clarify why voltage = ampere equations is true; ever wonder why PC motherboard gets away with shoving 100 Amps of power into the CPU without melting the 12V plug? In nutshell, battery trades amperage consumption for voltage shunted by inductor in switchmode VRM - in other word, battery have to work harder on higher CPU voltage settings but takes it easier at idle voltage.
Sent from my LG-P920 using XDA