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[Q] Best Battery Life

Hello, recently switched from my epic 4g to an evo and now to a nexus s 4g. I am currently running cyanogenmod7 with the netarchy 1.3.9 cfs kernal. I rooted the instance i got the phone so i never found out how stock rom battery life is. Anyhow what do you think the best combination of rom/kernal for battery life is?

Try them all and see what works for you. Just like the Evo, the Nexus has finicky hardware and all the different Rom Kernel combos work differently with different phones. For example, I can't use Matr1x at all. Phone has areas that stop working and gets real laggy but others love it.
|NeXuS S 4G|

I've been running the NS4G stock since the day I got it and the battery is AMAZING! But I'm comparing it to my previous Android phones, Hero (battery life was OK) and EVO (battery life was horrendous!)
I'm ready to root the Nexus and I'm hoping that none of these custom ROMs mess w/ my current battery life..

Stock the battery is awesome I've had this phone for a month and still can't mimmick it.. but on my rooted Evo still had better battery life than this phone I stretched it to 37h 49m but.. and using matrix I get dead spots on the center of the screen every now and then.
Sent from my Nexus S 4G using XDA Premium App

This should be in Q/A....
But to the point I've been using CM7 and Netarchy and it easily lasts through the day. Usually the phone leaves the charger around 8~AM and by 9PM-12AM when I plug it in for the night it's usually above 50 percent, sometimes down to 30-40 if I used it a lot.
Usage patterns will determine the battery life more then anything else. Don't Overclock or go crazy on background updates and the S will treat you right

typeadam said:
I've been running the NS4G stock since the day I got it and the battery is AMAZING! But I'm comparing it to my previous Android phones, Hero (battery life was OK) and EVO (battery life was horrendous!)
I'm ready to root the Nexus and I'm hoping that none of these custom ROMs mess w/ my current battery life..
Click to expand...
Click to collapse
what did you do in that 37hour battery life of the evo? leave it on standby? lolll.. which rom/kernel were you using?

y2bangali said:
what did you do in that 37hour battery life of the evo? leave it on standby? lolll.. which rom/kernel were you using?
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Click to collapse
You quoted the wrong person lol.. Honestly I used it, just didn't sync anything and turned off the 3g by unchecking the enable always mobile. had Calkulins roms that undervolts, Netarcys beautiful 4.3.2 cfc suv no havs rom .. all results vary of course through person to person.. I'm not constantly on the phone and crying that it can't last more than 6 hours... the last hour of it i was playing street fighter on the snes emulator as well.

xjreyes said:
You quoted the wrong person lol.. Honestly I used it, just didn't sync anything and turned off the 3g by unchecking the enable always mobile. had Calkulins roms that undervolts, Netarcys beautiful 4.3.2 cfc suv no havs rom .. all results vary of course through person to person.. I'm not constantly on the phone and crying that it can't last more than 6 hours... the last hour of it i was playing street fighter on the snes emulator as well.
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Click to collapse
lmaoo whoa what a fail.. anyways.. so your 3g was turned off the whole time? don't really know that many roms about the evo cuz I have an epic and my bro has a nexus s 4g.. I love the epic and it has great roms/kernels/battery life but when i look at all the roms for evo i feel like im missing out.. cyanogen and miui man.. those are what i want.. the most i went with my epic with 3g on the whole time was about 27hours..
EDIT: actually running on 30+ hours now on the epic with 40% battery left..

need advice about the current roms

Ok, ive been doing some research and it looks like eagals blood is prob the rom for me. I was wondering if i could get some advice on this, i am currently unrooted so im stock , this phone is killing me when it comes to battery life, the stability is so so, but my real problem is battery life i charge my fone about 3 times a day. I am a crazy heavy user, fb, texting about 200-400 message a day, phone calls every now and then, games (words with friends), and just random internet stuff. so my phone is like my life! My friend has a samsung captivate and he can go 12-14 of heavy usage prob not as much as me but he doesnt have it charging all the time like me. I was wondering what rom i should use to achieve great battery life and not lose out on stabilty or speed, look doesnt matter bc i use UTO kitchen.

Are you looking for an Android 2.3.3 or 2.3.5 ROM?
Sent from my LG-P999 using xda premium

Hey man if you want a 2.3.3 rom that is stock the best is Xboarders stock tweeked rom it is super stable and everything works and the battery life is great. I use that ROM myself when I am in a stock mood. You hit it on the head with eaglesblood it is the best rom out there. I use the 1.08 verion it is based off GB 2.3.5 it is a mix a cm7 and EB goodness. The battery life is also excellent on it but you will not have A2DP (thats BT stero music) And you cant flash the stock froyo LG camera and there are APN issues that A hard reboot fixes every time. All of the problems I just mentioned are not specific to EB they are however specific to GB 2.3.5 for the g2x. It has something to do with Nivdia not relesing something drivers or sorce I dont know what exactly but thats why. You have to make a choice. I hope this helps you. Oh I alklmost forgot I am a heavy user like you except not text mssgs or phone calls but net data data data I had to change my plan to the 10 gig plan 5 was not enough. So what I did was I got the extended battery for the O2x it fits perfdectly and it was only $30. Before that I had 2 stock batterys with an external charger that worked ok too but I hated changing the battery half way through the day you should look into that. Good luck man.
Charlie

mojorisin7178 said:
Hey man if you want a 2.3.3 rom that is stock the best is Xboarders stock tweeked rom it is super stable and everything works and the battery life is great. I use that ROM myself when I am in a stock mood. You hit it on the head with eaglesblood it is the best rom out there. I use the 1.08 verion it is based off GB 2.3.5 it is a mix a cm7 and EB goodness. The battery life is also excellent on it but you will not have A2DP (thats BT stero music) And you cant flash the stock froyo LG camera and there are APN issues that A hard reboot fixes every time. All of the problems I just mentioned are not specific to EB they are however specific to GB 2.3.5 for the g2x. It has something to do with Nivdia not relesing something drivers or sorce I dont know what exactly but thats why. You have to make a choice. I hope this helps you. Oh I alklmost forgot I am a heavy user like you except not text mssgs or phone calls but net data data data I had to change my plan to the 10 gig plan 5 was not enough. So what I did was I got the extended battery for the O2x it fits perfdectly and it was only $30. Before that I had 2 stock batterys with an external charger that worked ok too but I hated changing the battery half way through the day you should look into that. Good luck man.
Charlie
Click to expand...
Click to collapse
i dont mind i want something stable, fast and great battery life...what does A2DP mean...im going to try EB 1.07 bc i hear no1 has problems with that...

A2DP is Stereo Bluetooth Audio... That's only important if you listen to music using a Stereo Bluetooth Headset.
For battery life, I'd recommend a CM7 based ROM, with either a stock, or undervolted kernel, such as faux123.

FatalityBoyZahy said:
A2DP is Stereo Bluetooth Audio... That's only important if you listen to music using a Stereo Bluetooth Headset.
For battery life, I'd recommend a CM7 based ROM, with either a stock, or undervolted kernel, such as faux123.
Click to expand...
Click to collapse
When u undervolte does it slow does ur phones speed?
Sent from my LG-P999 using XDA Premium App

I agree with FatalityBoyZahy,
I did see a battery life increase after installing CM7, but the most dramatic change in battery life came after installing faux's 0.4.1 undervolted kernel.
And no the speed and stability don't drop, at least not with faux's kernel.
I would imagine that a 2.3.3 stock GB based rom such as Xboarder's tweaked or EB 2.3.3 plus faux's stock GB kernel would produce the best battery life, as I remember experiencing a huge jump in battery life from CM7 to stock GB.
However, I feel like besides the great battery life, the stock GB roms are ****ty compared to CM7 in terms off features and stability.
For example you can't do Netflix or gtalk video on stock GB.
Also I didn't experience this, but some users experience reboots and other such nonsense on stock GB.
So in Summary:
- stock 2.3.3 based rom (EB 2.3.3 is your best bet here in my opinion) + faux kernel = best battery life
- cm7 based rom (EB 2.3.5 or latest CM7 nightly) + faux kernel = best choice for both great battery life and better stability/features
Hope this helps!

Weapon. Its so smooth and I get 3 days with medium usage
Sent from my LG-P999 using xda premium

mightymike889 said:
Ok, ive been doing some research and it looks like eagals blood is prob the rom for me. I was wondering if i could get some advice on this, i am currently unrooted so im stock , this phone is killing me when it comes to battery life, the stability is so so, but my real problem is battery life i charge my fone about 3 times a day. I am a crazy heavy user, fb, texting about 200-400 message a day, phone calls every now and then, games (words with friends), and just random internet stuff. so my phone is like my life! My friend has a samsung captivate and he can go 12-14 of heavy usage prob not as much as me but he doesnt have it charging all the time like me. I was wondering what rom i should use to achieve great battery life and not lose out on stabilty or speed, look doesnt matter bc i use UTO kitchen.
Click to expand...
Click to collapse
triggers rom works amasing for me eaglesblood didn't realy play well with my phone been running his since i have great batt life

Running weapon currently.

wendellc said:
There is only a handful of roms for the g2x . Some of them are no longer being supported by the devs as they have moved on to other devices it seems. just give them all a try.
Sent from my LG-P999 using xda premium
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Click to collapse
Sent from my LG-P999 using xda premium

thanasisc4 said:
I agree with FatalityBoyZahy,
I did see a battery life increase after installing CM7, but the most dramatic change in battery life came after installing faux's 0.4.1 undervolted kernel.
And no the speed and stability don't drop, at least not with faux's kernel.
I would imagine that a 2.3.3 stock GB based rom such as Xboarder's tweaked or EB 2.3.3 plus faux's stock GB kernel would produce the best battery life, as I remember experiencing a huge jump in battery life from CM7 to stock GB.
However, I feel like besides the great battery life, the stock GB roms are ****ty compared to CM7 in terms off features and stability.
For example you can't do Netflix or gtalk video on stock GB.
Also I didn't experience this, but some users experience reboots and other such nonsense on stock GB.
So in Summary:
- stock 2.3.3 based rom (EB 2.3.3 is your best bet here in my opinion) + faux kernel = best battery life
- cm7 based rom (EB 2.3.5 or latest CM7 nightly) + faux kernel = best choice for both great battery life and better stability/features
Hope this helps!
Click to expand...
Click to collapse
ima throw on the faux kernel tried looking for it but not seeing the thread does any1 have it...Q how do you get netflix on here using EB 2.3.3...it didnt come with it....i might just switch to CM7 in a week or 2 i wanna try this out...and does CM7 have netflix for the G2x?

mightymike889 said:
When u undervolte does it slow does ur phones speed?
Sent from my LG-P999 using XDA Premium App
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Click to collapse
No. The only risk is that you might run into stability issues, but using morfic's UV11 it isn't an issue.
Undervolt, use SetCPU profiles, keep wifi/gps off when you're not using them, and keep your display brightness low. That will net you the best battery life.
Sent from my Nexus Prime using XDA Ultimate App

I believe the faux kernel is here: [Kernel]CM7 [2.6.32.45] (v0.4.1) OC~1.55GHz/UV/SLQB/BFQ/EXT4/Voodoo [Aug-27]
Looks like the CM version of the kernel is preferred by some in that thread (has to do with the battery driver).
Question: In terms of flashing the kernel, should I flash the ROM first and then the kernel? Or the other way around? (Or does it not matter?)

Question: In terms of flashing the kernel, should I flash the ROM first and then the kernel? Or the other way around? (Or does it not matter?)
Click to expand...
Click to collapse
Always ROM then kernel.
And I prefer the CM version of faux's kernel as well. Supposedly the DS version has better battery life but I've never been able to notice because I'm always busy pulling my hair out over the jumpy and wildly inaccurate readings.

thanasisc4 said:
Always ROM then kernel.
And I prefer the CM version of faux's kernel as well. Supposedly the DS version has better battery life but I've never been able to notice because I'm always busy pulling my hair out over the jumpy and wildly inaccurate readings.
Click to expand...
Click to collapse
Thanks for the info! Didn't want to screw something up by going in the wrong order.

zevvez said:
I believe the faux kernel is here: [Kernel]CM7 [2.6.32.45] (v0.4.1) OC~1.55GHz/UV/SLQB/BFQ/EXT4/Voodoo [Aug-27]
Looks like the CM version of the kernel is preferred by some in that thread (has to do with the battery driver).
Question: In terms of flashing the kernel, should I flash the ROM first and then the kernel? Or the other way around? (Or does it not matter?)
Click to expand...
Click to collapse
Thanks!
So which 1 do I get there's like 5 download links...
Sent from my LG-P999 using XDA Premium App

eagleblood is the best, do 1.8, its way better

Battery Life

Have one of these, rooted, stock rom on Rogers (LTE).
The battery life seems inconsistent... Some days it seems fine but days like today with 11 hours off the charger, with the two highest battery culprits being android OS (46%) and android system (16%) the battery life is already at 26%.
Other days when its on my desk it uses nowhere near as much...

vect0r said:
Have one of these, rooted, stock rom on Rogers (LTE).
The battery life seems inconsistent... Some days it seems fine but days like today with 11 hours off the charger, with the two highest battery culprits being android OS (46%) and android system (16%) the battery life is already at 26%.
Other days when its on my desk it uses nowhere near as much...
Click to expand...
Click to collapse
Titanium Backup.. "Freeze" tons of Bloatware.. get 18 hours of fun

Your gonna get reamed for posting in the dev section of the forums.

shansmi said:
Your gonna get reamed for posting in the dev section of the forums.
Click to expand...
Click to collapse
Hope he brought some lube

Haha assume the position

vect0r said:
Have one of these, rooted, stock rom on Rogers (LTE).
The battery life seems inconsistent... Some days it seems fine but days like today with 11 hours off the charger, with the two highest battery culprits being android OS (46%) and android system (16%) the battery life is already at 26%.
Other days when its on my desk it uses nowhere near as much...
Click to expand...
Click to collapse
Man I know I should say something but I'm just gonna sit back and watch this one unfold lol no astroglide
Sent from my SAMSUNG-SGH-I727 using XDA App

But seriously though, post this in q&a as you will not get reamed in the ___.
Answer: try one of the roms in this forum since that is what this forum is for, roms and development and such. They should be your answer since your current rom is filled with BS that sucks battery away my friend
Sent from my SAMSUNG-SGH-I727 using XDA App

@jayharper08 you are welcome here!!!!!!!!!!! hahahaha

I used stock with root and juicedefender battery is fine on mine
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appdroid said:
@jayharper08 you are welcome here!!!!!!!!!!! hahahaha
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Click to collapse
I'm here!
OP, please keep questions in the Q&A section. These guys were nice tonight, which I like to see. Keep it up
Seriously though, OP, development section is for development threads only. Hope you get your answer
Sent from the MIUI powered 3d

vect0r said:
Have one of these, rooted, stock rom on Rogers (LTE).
The battery life seems inconsistent... Some days it seems fine but days like today with 11 hours off the charger, with the two highest battery culprits being android OS (46%) and android system (16%) the battery life is already at 26%.
Other days when its on my desk it uses nowhere near as much...
Click to expand...
Click to collapse
If you are rooted and not afraid of flashing ROMs than get BeastMOD ROM. The name says it all. I m heavy user and i go for a day with full charge.

jayharper08 said:
I'm here!
OP, please keep questions in the Q&A section. These guys were nice tonight, which I like to see. Keep it up
Seriously though, OP, development section is for development threads only. Hope you get your answer
Sent from the MIUI powered 3d
Click to expand...
Click to collapse
I realized I posted it there once I left the house and I knew what I was going to come back to.
My bad.

appdroid said:
If you are rooted and not afraid of flashing ROMs than get BeastMOD ROM. The name says it all. I m heavy user and i go for a day with full charge.
Click to expand...
Click to collapse
You talking about the TMo version? I did a search and I cant find a Skyrocket or Rogers version of a BeastMOD ROM.
BTW I get have been getting 34-37 hrs @ 20-15% on the BoneSTOCKeteer-v1.0 ROM with med to light use. Your mileage may vary, but stock ROM only lasted a day with the same use.
edit: the more you play with/use your phone the faster the battery is going to peter out no matter the ROM

I noticed that wifi has a big impact on battery life. I hit about 50% of battery life with it on in about 5 hours but with it off and moderate use I can get 2 days use.
Just a thought and I froze lots of the SNS syncing apps with TB. I dont use those since i use another program for FB.

I actually like the ATT Smart Wifi app. Shuts down wifi when not in use. I think the free version of Juice Defender doesn't do that.

I have now owned my 727R for 6 weeks, coming from an iphone 4. I am finding the battery life inconsistent from charge to charge and anywhere from barely adequate to downright poor. Maximum I have ever gotten was 26 hours with minimal use and minimum has been 10 hours with minimal use.
I have installed and use Juice defender, and have looked at a variety of apps such as cpu spy, cpu hound, traffic monitor. I have turned off notification as much as possible and all other tricks under the sun.
My phone does not seem to go to deep sleep often and a lot of times it shows as awake even though the screen was off for a while.
The straw that broke the camle was when I cmpared notes with my clleague who has a Galaxy S (I know, no 4g, no LTE, smaller csreen). But he is getting 90% battery life with wifi and bluetooth on after 7 hours 15 minutes (minimal use). In the same time period I am down to 60% with bluetooth off!
I am not planning on rooting the phone and using custom ROMS or Kernels right now.
What gives? What do I look at to improve battery life?
Thanks

i notice with out a lot of changes i get horrible horrible battery life. but with a custom rom like quick wiz. i turn screen down. wifi off. under clock it and use a battery saver plus task killer i get two days moderet (use
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I would suggest since Roger stock rom sucks the life out of the battery to root it and use faux123 kernel and Gideon's script to under clock it. Im using at&t stock rom rooted and faux123 kernel and I haven't had a bad battery day yet.. currently 12hrs moderate use 73% still.... not bad at all. Give it a try.. its not like it could any worse lol
Sent from my SAMSUNG-SGH-I727 using xda premium

dmunjal said:
I actually like the ATT Smart Wifi app. Shuts down wifi when not in use. I think the free version of Juice Defender doesn't do that.
Click to expand...
Click to collapse
It looks like this isn't available for Skyrocket.
1) Does it work like it should, and does it save battery, or is the battery savings negated by other junk running with it in the background? Reviews seem very mixed.
2) If you got it on a SR, how? Would pulling the APK from another device work?

rezadue said:
I have now owned my 727R for 6 weeks, coming from an iphone 4. I am finding the battery life inconsistent from charge to charge and anywhere from barely adequate to downright poor. Maximum I have ever gotten was 26 hours with minimal use and minimum has been 10 hours with minimal use.
I have installed and use Juice defender, and have looked at a variety of apps such as cpu spy, cpu hound, traffic monitor. I have turned off notification as much as possible and all other tricks under the sun.
My phone does not seem to go to deep sleep often and a lot of times it shows as awake even though the screen was off for a while.
The straw that broke the camle was when I cmpared notes with my clleague who has a Galaxy S (I know, no 4g, no LTE, smaller csreen). But he is getting 90% battery life with wifi and bluetooth on after 7 hours 15 minutes (minimal use). In the same time period I am down to 60% with bluetooth off!
I am not planning on rooting the phone and using custom ROMS or Kernels right now.
What gives? What do I look at to improve battery life?
Thanks
Click to expand...
Click to collapse
I hated my skyrocket when I first got it because the battery sucked. Never could make it through a full day of average use. I did a search, found out how to root and install a custom rom and now I love it. I can go a full day and still have 20% left. All I can recommend is rooting and at least remove bloatware. I've never seen a single skyrocket user happy with their battery life on stock. Maybe sell or trade it for another iPhone.
Sent from my SAMSUNG-SGH-I727 using xda premium

How is Galnet MIUI?

How is the GalnetMIUI? im just wondering never really gave the rom a try i am running Weapon G2x which is pretty good
im wondering how galnet is in -
- battery life
- keyboard
- performance
so far ive only tried out CyanogenMod7.1 stable battery was around the same as stock and weapon g2x which is about the same as stock just a bit better (wiped batt stats)

I just recently flashed coming from CM7.2 which was getting about 18 hours of fairly good use (xda every 30 minutes, facebook every 2-3 hours, regular web browsing looking at news in my area, about 20 minutes talk time and quite a bit of texting.) On wi-fi calling in the evenings about 6 hours 4g every else)
I flashed Galnet 1.12.2 and went through the market and installed my 10 or so apps that I use, setup the phone to my liking looked at the themes sent a couple of texts. In the 2 hours with all that I'm at 92% it was kinda heavy usage for the first hour. Battery is pretty good. I'll report back later in the day after more use to see if it is still good. I think it should be around 16 or so hours. oh and I use Smart Keyboard Pro the stock keyboard feels like it does on every other Gingerbread ROM. Performance is a little sluggish compared to other roms, but that might be just me. Either way the ROM is nice.

oh wow thats amazing :3 i get 10% drops within the hour... if i leave the phone over night with no use it drops 10% ... but i do leave it on 3g all the time as i am in canada and use WIND ... also weapon has Wifi Calling app preinstalled which i think could be using the battery too how is it looks wise? im pretty used to the gingerbread now its really nice

82% now with some more texting and some damn angry birds, haha.

where the install for galnet 1.12.2 and is it the g2x version?

littlecarlos said:
where the install for galnet 1.12.2 and is it the g2x version?
Click to expand...
Click to collapse
Google search this "galnet miui g2x port" should be your first option.
Sent from my LG-P999 using xda premium

Battery life shouldn't be much different considering they use cms kernel
Sent from my LG-P999 using xda premium

what is the difference between galnet MIUI and MIUI? i heard that it has some ICS coding for the framework is this true? does it actually make it different?

How is the battery life of 4.0.4 Official AT&T version?

Can anyone comment on the battery life on the Official AT&T 4.0.4? Battery life is one of the most important necessity of mine. Right now I am on SKY ICS 4.2E with the nexus extended battery and I can go with a full charge from morning 8:00 a.m to 7:00 p.m with moderate usage. The ICS leaks were horrible, so that to back to stock GB. Tried Sky ICS 4.2F but 4.2E was smoother so went back and sticking to Sky ICS 4.2E.
If this official release is too bad on the battery life like the leaks, I am gonna skip and stay on Sky ICS 4.2E for a while.

aviseqdas said:
Can anyone comment on the battery life on the Official AT&T 4.0.4? Battery life is one of the most important necessity of mine. Right now I am on SKY ICS 4.2E with the nexus extended battery and I can go with a full charge from morning 8:00 a.m to 7:00 p.m with moderate usage. The ICS leaks were horrible, so that to back to stock GB. Tried Sky ICS 4.2F but 4.2E was smoother so went back and sticking to Sky ICS 4.2E.
If this official release is too bad on the battery life like the leaks, I am gonna skip and stay on Sky ICS 4.2E for a while.
Click to expand...
Click to collapse
If you're worried about battery life I would stick with SkyICS. You can wait a while till sean works on the ROM a little bit more but hes been working hard to get the tweaks with the latest ICS.
http://forum.xda-developers.com/showthread.php?t=1763195
Check that frequently for more updates. :good:

two days on att ics, fully stock non-rooted... yada yada. day 1 was great got 11 hours with moderate to heavy use (mostly internet, set up, download apps). day 2 sucked, only got about 7 hours of use .... slight to moderate use (some internet, fb, 10 mins of map with gps).
i'm hoping day 2 was a fluke.
Sent from my SAMSUNG-SGH-I727 using xda premium

I'm impressed with it. I got a solid 12 hours of usage out of it. Playing tunes, texting frequently, downloading apps and what not... Keep in mind, I'm not on an LTE and as such I have it disabled. I've heard it can wreak havoc on battery life.
Can't give an accurate estimate for today, as it was plugged in and floating around 30-50%... But it seems better than GB to me.

What about your screen on time?

Yeah... battery life has been bad for me since I switched from skyics Rodgers edition to att official skyics release. Tried reflashing the rom a couple times but the problem remains. Just gotta wait around now for a solution.
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I'm getting around 16 hours with 3-3.5 hours screen on time. I haven't been playing any graphics intensive games.
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No complaints. Its not really that bad.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

The battery life of the official ICS was definitely better than 2.3, that being said I have moved on to SkyICS, and it's simply fantastic, even with the stock kernel

For me, it's excellent on wifi. On 4G, it's decent. I can go about 10 hours with moderate use and system power saving settings on.
Sent from my SAMSUNG-SGH-I727 using xda premium

Battery life
My wife and I have the same phone her's is white(stock) mine is black (rooted and using stock rom bloatware is frozen ). I am getting better hours of use with some Words with friends a few calls and a few txt message. I can go day and half before I charge. Wife has to charge nightly and she uses her phone less then I do. I am rooting her phone tonight after work. Both have upgraded to ICS.

My wife has my old Skyrocket now that I have the GSIII..She came from a Cappy to the iPhone to the Skyrocket and she swears by the battery life on her phone and she LIVES on her damn phone...(I do too, I'll admit). She claims it's even better with the firmware upgrade, stock & unrooted..

Stock rooted rogers, with heavy use, I've got a dismal 4-5 hours! But that's scree on & browsing... Good thing I'm close to a charger.......
Sent from, The Eclectic Chair.

12 hours! battery @ 78% didn't use the phone much since 5 am. Made a couple of phone calls, surfed play store... not much

i didnt like the battery life on the official build so i am using skyics 4.2f6 now with better battery life! Seanzscreams is the best developer for the skyrocket love his work.

for those of you who were like me and had horrible battery life on any of the ICS roms including Sky, i have found a solution i have tested this on 2 roms so far the first being my Daily Driver CM9 Nightlies, and stock ics. i found that for some reason when my phones screen turned off my phone would not go into sleep mode, the fix for me was to run SetCPU app, which i did pay for, and create 1 profile, for screen off, and just change the the cpu max and min speeds to max 540 and min, 192, i found that will keep your notifications coming without any lag, and when you wake the screen it will not be laggy as well. I'm Currently at 13 hours and my battery is at 79% and i played with the market, and surfed the web some, obviously texted a few time as well. https://play.google.com/store/apps/details?id=com.mhuang.overclocking&feature=search_result#?t=W251bGwsMSwyLDEsImNvbS5taHVhbmcub3ZlcmNsb2NraW5nIl0.

it is worse than 2.3.6. now after just over one hour heavy use, down to 63%
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Pure bone stock phone here (for now), battery life has been pretty good IMO (compared to my Captivate). The other day I was down to ~72% after >15hrs of light use.
As always, YMMV. My theory is that it depends on the apps you have installed, and what version they are. I would get updates to some apps and my battery life would suddenly be different after the update (sometimes better, sometimes worse.)

My gfs on stock has dropped by about 50%. Lte in sf.
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I went from rooted running every from imaginable and now I'm stock battery life on the ics uptade is much improved from gb it almost feels like a rom check it out...
Granted this is light usage but still great for a stock bloated phone
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