Database Users

Battery problems? Google lies?

So I found this great app that tells me how much life I have left on my battery. I find that with my phone I can hardly go pass 16 hours with MODERATE use yet everyone here is bragging about easily passing 30hrs with HEAVY use. So I'm asking you guys, to please, download this app called BatteryTime Lite and post your pics or info here. Lets compare the results. Remember to set the level to 100% as shown in my pic below..
Also I herd the P/N might be related, mine is 99HKE002-00 F ..Guessing F means Failure.

Are you using Cyanogen's ROM???

faraz1992 said:
Are you using Cyanogen's ROM???
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Click to collapse
No, stock. Why you ask?

i read somewhere that Stock and Cyanogen's ROM have display consuming a lot of battery... its fixed on enomther's and modaco's desire port...
On Cyanogen and Stock, Display consumes ~60% battery while on Enomther's and MoDaCo's desire port, display consumes 15~20% battery...

faraz1992 said:
i read somewhere that Stock and Cyanogen's ROM have display consuming a lot of battery... its fixed on enomther's and modaco's desire port...
On Cyanogen and Stock, Display consumes ~60% battery while on Enomther's and MoDaCo's desire port, display consumes 15~20% battery...
Click to expand...
Click to collapse
Thats what I herd too..thats why I'm also calling google a lier about saying this thing lasts 20hours with audio playback.
I'm curious, do they see a big improvement in battery when the display using 15-20% battery or its just numbers that were out a place to begin with?

I have identical figures. That combined with picking the N1 from a list says to me that these are just database figures rather than real world ones for your handset.

Root your phone and then install cyanogenmod and one of the under volted kernels. I usually get 24 - 30 hours battery life.

I just ran a test. I left the mp3 player on all night turn all the way on repeat. SO far after 8hrs of playing I was at 52%. If I'm correct, I just might be able to hit 18hrs...MMMM
myplague said:
Root your phone and then install cyanogenmod and one of the under volted kernels. I usually get 24 - 30 hours battery life.
Click to expand...
Click to collapse
Completely far from the part that I said google lied. Though I'm planning to root if the next update does not improve or fix these issues.

myplague said:
Root your phone and then install cyanogenmod and one of the under volted kernels. I usually get 24 - 30 hours battery life.
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Click to collapse
what kernel is this? i am running cyanmod 5.0.5.3 and kernel 2.6.33.1-cyanogenmod [email protected]#1

I know the last letter of my p/n is B and its amazing

zachthemaster said:
I know the last letter of my p/n is B and its amazing
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link if u dont mind, sorry for jackin the thread.... back to our reg scheduled program

jack away..
zachthemaster said:
I know the last letter of my p/n is B and its amazing
Click to expand...
Click to collapse
No problems at all? no 3g issues?, battery only lasting a day or half? or touch screen issues?

Ok after 100% charge..the app is telling me that my phone will last 10hr:48min with moderate use....anyone thinking that the F on my P/N might mean battery sucker..

i have the exact same numbers as you. if you choose other instead of the phone type it asks you to enter your battery's info so it sounds like it only goes by the type of battery anyway. Not actual usage specific to your phone

My phone ends in an F as well. My battery life SUCKS right now. I have tried everything. The weird thing is it was good until I rooted my phone and applied Cyanogen rom. I've tried .2 and .3 for the Cyan rom's, all with bad battery life. I've tried wiping batterystats, fulling draining battery then recharging, task killer to wipe anything in the background, I even have a 2nd battery. No luck. I've also tried the undervolted kernal, but I didn't really notice a difference with it. (Only tried it for about a day so)
Bottom line though, something is going on. Something (I suspect with Cyan's roms) is killing battery life for some of us. I just wish I could figure out what it is.

faraz1992 said:
i read somewhere that Stock and Cyanogen's ROM have display consuming a lot of battery... its fixed on enomther's and modaco's desire port...
On Cyanogen and Stock, Display consumes ~60% battery while on Enomther's and MoDaCo's desire port, display consumes 15~20% battery...
Click to expand...
Click to collapse
Not saying your're wrong but can anybody else back this up or debunk it?

Beautiful phone with bad battery life and bad signal.That was just my experience.

ram130 said:
So I found this great app that tells me how much life I have left on my battery. I find that with my phone I can hardly go pass 16 hours with MODERATE use yet everyone here is bragging about easily passing 30hrs with HEAVY use. So I'm asking you guys, to please, download this app called BatteryTime Lite and post your pics or info here. Lets compare the results. Remember to set the level to 100% as shown in my pic below..
Also I herd the P/N might be related, mine is 99HKE002-00 F ..Guessing F means Failure.
Click to expand...
Click to collapse
Any chance you're using Weatherbug or Weatherbug elite (based on your SS)? After installing weatherbug and using the widget I got absolutely ABYSMAL battery life. I've purchased several other weather widgets and none had the effect that Weatherbug did for some reason. I removed it and battery life is back to normal again (moderate use and plenty of battery at the end of the day).

ram130 said:
jack away..
No problems at all? no 3g issues?, battery only lasting a day or half? or touch screen issues?
Click to expand...
Click to collapse
no problems AT ALL
no dead pixels
no purple tint, crystal clear and saturated colors
battery lasts 1.5+ days
3G (at&t) is almost ALWAYS there and quick as balls
palm reach thing is gone.. i mean, i had the t-mob version before this one and its exponentially a better experience all around.
data is QUICK too... i mean quick

How long your battery lasts definitely depends on the apps youre using, I use my phone a lot, probably more than the average user, although i dont make many calls. My phone will easily last from when I leave my house around 530am till 11pm or so when I go to bed. I do use a task manager to kill stuff I dont need running every once in a while, I think it really just depends on how you use it. I use it for a lot of texting, surfing and news, and Pandora at work. I use wifi when im at home although ive never noticed it eating my battery. Yesterday I was playing Pandora over bluetooth on 3G for a little over 3 hours and it only took 5% of my battery. Im on Cyanogen 5.0.5.3, if that matters. With all that said I rarely go all day without charging it, I usually plug it in a bit at work and plug it in when I get home, but if I dont for whatever reason it easily lasts my whole day.

Which ROM gives the best battery... period?

Does anyone know? My guess is MCR or Enom... but I can't be positive. Anyone?

Im waiting for the next release of cm, if it wont improve my battery life i am going to systematically try out all the other mods to see which one gives me the most juice.

Ive had my best battery from Kings Nexus rom. Its undervolted and has easily been the best battery one.

dafoo21 said:
Ive had my best battery from Kings Nexus rom. Its undervolted and has easily been the best battery one.
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Thanks... I'll be using the AVS kernel, so I'm more concerned with ROM (not kernel) performance...
EDIT: Also - I can't use Desire because of Bluetooth.

hah2110 said:
Does anyone know? My guess is MCR or Enom... but I can't be positive. Anyone?
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Click to collapse
For me its Alpha r20 - MoDaCo Custom ROM Desire Port this rom is great or me r21 was not as good for battery life i dont know why wish i did

From worst to best:
-CM
-Enom
-Desire

Hmm... I WISH I could go to Desire but I NEED Bluetooth. What about regular MCR?

Rom : cyanogen 5.0.6 test1
1 days and 8 hours and I still have 30% of batery

kosworld said:
Rom : cyanogen 5.0.6 test1
1 days and 8 hours and I still have 30% of batery
Click to expand...
Click to collapse
Can you put this in context though? What was your battery life like previously? What ROMs have you used? What kernel are you using? Where can you even get 5.0.6?

Yeah battery life has to be tested to a standard method one good way to test would be to play a movie with the volume at Max with high brightness or transferring one big file over wifi for a period of time and see how fast it drains. This will act as a stress test and will bring comparisons a lot faster and more efficiently.

kosworld said:
Rom : cyanogen 5.0.6 test1
1 days and 8 hours and I still have 30% of batery
Click to expand...
Click to collapse
Doing what exactly? phone usage?

Which ROM gives the best battery... period?
Click to expand...
Click to collapse
The one that doesn't allow you to turn on the phone. Battery lasts for weeks!
In all seriousness, using stock rom gives me a very good battery life now, lasting more than a day with almost everything on, 2 push emails, full brightness and all 3G.

CM 5.0.6 T2. so far ive got a full day of usage out of this rom with 3G all day. setcpu profiles enable. Gtalk, Twitter, Emailing. 5 or more phone calls 15 min each. Two app downloads from market.
But if i was just going to play and show off i had use Enom rom and its far by the best. for battery life. CM 5.0.5 i didnt get great battery life. i could leave my phone over night 100% and wake up to it on 80%-70% or so. with nothing in the background

An undervolted CM 5 may give you a better battery life...
Waiting for 5.0.6...

Cyanogen 5.0.6 is far and away the best ROM I've used, power wise.
Up to 5.0.5.4 I was seriously considering getting rid of my N1, as the battery would lose 80% in less than 10 hours, just sitting on standby combined with less than an hour's worth of web browsing.
5.0.6 is much better, and I'm still showing 50% after 16 hours.
Still not a patch on my old Nokia 5800, which went 3 days at a time on a single charge, but at least I have the confidence to actually use my N1 now...

I'm sorry I call BS on anyone who claims they use their phone AND get more than a day battery life. Until someone is willing to give me a Nandroid backup to restore to my phone to see what it is that is running and prove that their programs and background processes make for a 20+ hr battery, I don't buy it.

I'm off the charger since 8am and am down to 91%... it is ridiculous. I'm on an AVS kernel and Enom with not much running in the background.

hah2110 said:
I'm sorry I call BS on anyone who claims they use their phone AND get more than a day battery life. Until someone is willing to give me a Nandroid backup to restore to my phone to see what it is that is running and prove that their programs and background processes make for a 20+ hr battery, I don't buy it.
Click to expand...
Click to collapse
Is that aimed at me?
I have a Facebook widget, along with the standard news and weather widget running, and email (NOT the Google mail app) set to refresh every 15 minutes.
I use the browser (on 3G/HSDPA) for up to an hour, here and there, and about the same on wi-fi at home.
GPS is always on, Wi-Fi and bluetooth only on when required.
The Last.fm app also gets used for up to an hour, although not every day.
Couple this with the odd phone call and text message.
The above would see my battery down to less than 20% after about 10 hours, and was really annoying.
The past few days, when I went to bed the battery was hovering around the 50% mark - although I've not used Last.fm this week.
Of course, this may not meet YOUR definition of phone usage, but it certainly isn't BS...

Raymond77 said:
Is that aimed at me?
I have a Facebook widget, along with the standard news and weather widget running, and email (NOT the Google mail app) set to refresh every 15 minutes.
I use the browser (on 3G/HSDPA) for up to an hour, here and there, and about the same on wi-fi at home.
GPS is always on, Wi-Fi and bluetooth only on when required.
The Last.fm app also gets used for up to an hour, although not every day.
Couple this with the odd phone call and text message.
The above would see my battery down to less than 20% after about 10 hours, and was really annoying.
The past few days, when I went to bed the battery was hovering around the 50% mark - although I've not used Last.fm this week.
Of course, this may not meet YOUR definition of phone usage, but it certainly isn't BS...
Click to expand...
Click to collapse
Not trying to be rude but I just don't see how we have such inconsistencies....

hah2110 said:
Does anyone know? My guess is MCR or Enom... but I can't be positive. Anyone?
Click to expand...
Click to collapse
I agree, IMP MCR then Enom.

Yet another battery issues thread

Yeah I know there are a lot of other battery threads out there, but just wondering if I can get some help from all you gurus.
Currently running MYN Warm 2.2 RLS3 with HTC kernel 2.6.32.15.
Have read a lot about this and done a lot of the usual optimizations (calibrate battery, turn off auto sync, 4G, etc...last test I did I was able to get about 25 hours on a charge with very little usage, which is pretty decent. So the phone seems to be sleeping the way it's supposed to.
The issue I have is that when I actually start using the phone the battery drains like crazy (about 1% every two minutes). This is with regular usage (i.e. internet browsing). If I use certain battery hog features such as Navigation or Bluetooh then it drains everything in a matter of an hour or so. Have tried playing around with SetCPU and don't really see any improvements (BTW I only get three options on SetCPU).
So the question is whether the battery drainage is a function of the Kernel I'm using? Why would it be good when it's sleeping, but as soon as I use something consumption goes through the roof. Is there anything out there that would allow you to see actual battery usage by app or service? I know Spare Parts gives you SOME info, but it's not granular enough (i.e. It says Android System includes many different pieces).

I doubt there's any magical kernel that can do more than what you are getting now.
Best you can do is to make sure the phone sleeps when the screen is off, which seems like you have already.
Max display on usage I usually get out of a charge is between 2-3 hours at about 30% brightness settings, out of about 12-15 hour per charge.
I sync google, always data on.

yo i have myn's rom as well but different kernel.. try the ones that myn added in the myn update app that came with the rom

Hmmm...so I guess 2-3 hours of actual usage is the best I can hope for then? I hear people saying how they get a lot of hours and that includes having Bluetooth on, browsing the web, Pandora, gaming, etc...If I did that with mine I don't think I would get more than 45 minutes.

suarezn said:
Hmmm...so I guess 2-3 hours of actual usage is the best I can hope for then? I hear people saying how they get a lot of hours and that includes having Bluetooth on, browsing the web, Pandora, gaming, etc...If I did that with mine I don't think I would get more than 45 minutes.
Click to expand...
Click to collapse
You probably can extend it by using wifi but what's the fun in that?

Skeptron said:
yo i have myn's rom as well but different kernel.. try the ones that myn added in the myn update app that came with the rom
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Click to collapse
Hmmm...Where? Are you referring to the Warm Updater app? I don't see anything about other kernels there. I haven't flashed any kernels on my phone. This is the one it came with.
What battery life do you get when you're actually using the phone?
Achllles: I get quite a bit of degradation on WI-FI as well.
I'm just trying to understand if there's a way to see what exactly is eating my battery when I use the phone. I mean I could be just sitting on the screen not doing anything and if it's on it consumes quite a bit, but as soon as I turn off the screen everything goes to sleep and consumption drops to about 1% per hour. just trying to understand this huge disparity.

Not sure. Best you can do at this point is to install current widget and see how much is being consumed, and guess what's killing your battery.
One other thing I've noticed was even at same settings, my phone often consumed around 25-30mA while screen is off, but now it hovers around 50-100mA, and I haven't made any change to the phone.
Not sure if it's effect on real life usage, but it does seem like it does.

Maybe its not software related...maybe your battery is just shot already.

I know exactly what your going through OP. This caused me to leave Myns and Cyanogen and go to Fresh ROM.
This seems to have mainly fixed the problem.

Myn was using the stock kernal, but his new rsl4 is gonna be using ziggys elite kernal.. Now is this kernal gonna be faster than other ones? No but myn told me its not about speed. Its speed that makes your battery life go down. These flashy kernals that have high quadrant speeds, suffer battery draining issues. So wait till friday for the new rom, and see how that goes.

suarezn said:
Hmmm...Where? Are you referring to the Warm Updater app? I don't see anything about other kernels there. I haven't flashed any kernels on my phone. This is the one it came with.
What battery life do you get when you're actually using the phone?
Click to expand...
Click to collapse
there are 2 kernels there.. just try to look harder, i get 12-15hrs heavy use which is more than enough for me

Was never able to find these other Kernels, but I did install Netarchy Toast. Installed versions 4.19 to try Collin's Battery Tweak, but could never get that tweak to work properly (it always has a process that uses a lot of CPU). Uninstalled that and tried version 4.2 ant that seems to be working OK (without the battery tweak).
So after a lot of testing and re-testing I've come to the conclusion that my crazy battery drain only happens whenever there's a "radio" on. CPU usage is not the main culprit in my case as even overclocking it doesn't drain it much if the radios are turned off. It doesn't matter if it's WIFI, 3G or 4G, if the phone is using any of this it drains very quickly. Thus the reason it acts good whenever is sleeping.
A perfect example of this is that I used Power Amp to play music from my music library (from my SD Card). Used it for like 4 hours and it drained the battery at a very reasonable pace, then I stopped that and started playing music using Pandora. Immediately the battery started to drain at about 1% rate every two minutes or so. I've read somewhere that using WIFI instead of 3G would save battery. Didn't seem to make a difference in my case as it drained at about the same rapid pace. Now if I have both on, then it gets even crazier.
So having found the culprits the question is whether there's anything that can be done to improve this. BTW I think I have the latest PRI (1.77_003), PRL (60671) and baseband (2.15.00.09.01) versions

Appropriate steps to a better battery life?

Hi everyone! Long time XDA reader and I've had my Evo rooted for months. Now I have been dealing with its "poor" battery life for a long time and not really thinking much of it till I finally decided that rooting has to have some advantage for this. I average about 6-7 hours then my phone dies...
After doing a little research I read some people getting 15-20+ hours out of their phone with heavy use...I was amazed...I decided to try to get better battery life on my phone and this is what I am trying right now. I just want to make sure I am on the right path with it and that I am not doing anything seriously wrong.
-I am trying Cynogens ROMs - CM7 I tried for a day and that gave me about 7 hours of battery life...still no real improvments. I am trying Cynogens 7 Nightly 12 now to see if that works.
-I am trying different Kernels. Been getting them on the HTC EVO kernels page. Right now I am using stock HTC one.
-Should I try different radios too? Where can I go to find different radios if so.
-What order should I be installing radios/kernels/roms?
-I have donated and am using Set CPU now also and have the screen off cpu power really low.
-Am I on the right path trying out different ROMS/ Kernels/ Radios to optimize my battery life? Is there anything else I can be trying?

turn off gps when not need
data when not needed

Check out my sig for my full walk-through on battery life (I don't want to repost it here lol).
But you seem to be doing everything okay. My only hesitation would be to say make sure you're giving Kernels adequate time to settle into your phone. Unless something is HORRIBLY wrong with them, you shouldn't switch/judge them until at least two days in
Radios should not make a difference in your battery life.
Also, be aware that CM is NOT optimized for battery life. There are a couple of ROMs that will give you unheard of battery life if you would like though (Myn's comes to mind). It's a trade off though. CM is hands down the fastest ROM you'll run...but in my experiences is in the lower tier of battery.
Hope that helps

also when the newest version of ultimate Juice is released that will help you i have the closed beta and im glad to have it back and running

@Cheesy: I turn off all those things If I turn off "data" that turns off Exchange push right? I really need that on all the time >_<
@Green: Really? Myns is good on battery life? I tried that before and was dieing with battery. (Was getting my average 6-7 hours) I had that one for about 2 weeks. Do you think it was my Kernels that were bad then? Isn't Myns warm 2 pt sense based? The one I used was...I had thought sense UI drained battery more than CM for example that is just plain stock android gingerbread?
@Cheesy again: Ultimate Juice? Is that an app on the mkt place? How much did it help you? I'm willing to donate and pay for apps to support the devs if they really make a noticeable difference.
Another thing..when you install a ROM does it automatically install a Kernel too? Or are those 2 separate?

syypher said:
@Cheesy: I turn off all those things If I turn off "data" that turns off Exchange push right? I really need that on all the time >_<
@Green: Really? Myns is good on battery life? I tried that before and was dieing with battery. (Was getting my average 6-7 hours) I had that one for about 2 weeks. Do you think it was my Kernels that were bad then? Isn't Myns warm 2 pt sense based? The one I used was...I had thought sense UI drained battery more than CM for example that is just plain stock android gingerbread?
@Cheesy again: Ultimate Juice? Is that an app on the mkt place? How much did it help you? I'm willing to donate and pay for apps to support the devs if they really make a noticeable difference.
Click to expand...
Click to collapse
with UJ i get 18-19 or more on a full charge with phone being used 80% of the day .
with out i was changing out batteries after 9 hours or so ( i normally work 12 - 13 hours a day )
yes its in the market but gingerbread support is not public yet ( closed beta )
also check in spareparts for any wakelocks you might be having
for a sense rom myns are great so are Ava's,caulkins and Miks

Hmm Thanks Cheesy. I'll take a look at that.
So if I flash a ROM that is not Gingerbread...I can use that app. But Gingerbread is anything 2.0+ right?
I'll try out those ROMs too and different kernels...test them for 2-3 days.
Whats wake lock? I'll download that spare parts thing and see if I can figure it out.

I just recently started seeing great battery life with my rooted Evo. I flashed MikFroYo 4.5 with a stock htc kernal.
I use juice defender and that's it. I've been getting just over a day per charge for the past two weeks.
I wouldn't say that's with heavy use as a good 6-7 hours of that time are accounted for when I'm asleep. I do about 30-50 texts a day. About 10 minutes of calls and I check facebook and twitter all the time. My data use varies depending on the day but I do use youtube and pandora pretty regularly as well.

just make sure background data is disabled. accounts and sync>background data. I have no issues with battery life on stock sprint evo.
of course it is a 3500mah battery

My wife and I just bought two EVOs a week and a half ago, and I quickly became interested in improving the battery life on the phone. My first attempts were rooting my phone and installing OverClock Widget, and using minimal settings when the screen was off. With that change alone, and comparing to my wife's phone from a full overnight charge, my phone was able to make it 14-16 hours with moderate use. My wife's phone would die after 8-9 hours of moderate use. Granted, there's obviously going to be a difference between my moderate use and hers, but even testing with screens off and letting them idle for an hour, there was a definitive difference in battery consumption between our phones.
I went one step further and installed CM7 Nightly 12 just yesterday... already I'm noticing even further improvement in battery life, but the majority of those savings are when my phone is idle. Overnight, my battery only drained 7%, whereas my wife's drained much more than that. My battery has been at 39% for the past 3 hours at idle, so I imagine that with my version of "standard usage", I would be able to possibly get higher than 16 hours of usage per charge (can't wait until I do the full calculation testing tomorrow!).
Here are some observations I've had in all of this:
1) Check out Greenfieldan's list of battery tips and tricks. Some of these are very simple and actually had a significant impact on both my phone and my wife's phone (especially shutting off data and disabling auto-synch). I'm new to the forums, but this is one of the first things I checked out. This is a great place to start.
2) Battery consumption is obviously affected by how frequently you use your phone, and what you are doing with it. I say this because it's easy to read threads about what techniques work and see mixed results, but I don't see alot of people really admitting how much or how little they use their phones. I'd say I'm a more conservative user of my phone, but I still have my texting, browsing, and even occasional streaming, GPS using and general fiddling. So in other words, your mileage may vary with any given technique.
3) This is my personal opinion, but think about when you ideally want to be charging your phone, and try and anticipate usage around it. It sounds strange, but I've come to my own conclusion that an optimal charge for me (not necessarily possible, but optimal) will give either 12 or 36 hours of usage time. This is because I like to charge my phone overnight, so if I get 18 hours of battery life, I'm unfortunately wasting 4-6 of them. If I get 24 hours of usage, then that means that by the next morning, I need to charge again. So I plan ahead and charge at night, and use through the day. This was particularly useful when I first started with the phone and was getting a max of 8-9 hours. I'd know when to unplug, and how well it would get me through the day.
Anyway, at this point I'm rambling, but since it is still very fresh in my mind I wanted to share my thoughts. Hopefully this helps.
(Btw, apologies for the huge post!!)

syypher said:
So if I flash a ROM that is not Gingerbread...I can use that app. But Gingerbread is anything 2.0+ right?
Click to expand...
Click to collapse
Gingerbread is Android v2.3. Froyo is v2.2.

syypher said:
@Cheesy: I turn off all those things If I turn off "data" that turns off Exchange push right? I really need that on all the time >_<
@Green: Really? Myns is good on battery life? I tried that before and was dieing with battery. (Was getting my average 6-7 hours) I had that one for about 2 weeks. Do you think it was my Kernels that were bad then? Isn't Myns warm 2 pt sense based? The one I used was...I had thought sense UI drained battery more than CM for example that is just plain stock android gingerbread?
@Cheesy again: Ultimate Juice? Is that an app on the mkt place? How much did it help you? I'm willing to donate and pay for apps to support the devs if they really make a noticeable difference.
Another thing..when you install a ROM does it automatically install a Kernel too? Or are those 2 separate?
Click to expand...
Click to collapse
Sorry it took me so long to reply.
Anyhow, from my testing on mine and three other phones Myn's Warm TwoPointTwo has the best battery life (although some of them were right on par with it). Specifically his RLS 3 and RLS 4. Did you try Warm Z? Because the battery life on that ROM is no where NEAR his 2.2 ROM.
Also, Sense CAN be a major drain on battery. If you make it so it's not syncing all the time/doing the random shenanigans it defaults to I'd argue it's better than AOSP (based on my experience with both).
Yes, your Kernel might have been an issue. Do you know which one you were using? HAVS? CFS? BFS? Etc.
Just for my phone comparison, CM7 (which I am running now) requires me to charge my phone at least once a day. Myn's Warm TwoPointTwo was every other day/every day and a half.

syypher said:
@Cheesy: I turn off all those things If I turn off "data" that turns off Exchange push right? I really need that on all the time.
Click to expand...
Click to collapse
You can set juice defender to turn on data to sync at set intervals; anywhere from 15min to every couple of hours. If you can stand to wait 15 minutes for that email then I would recommend it. I personally like not being interrupted every time I get an email.
Also, make sure your kernel and setCPU aren't trying to both control the same thing. I really like using a kernel with HAVS so I avoid apps that also try to modulate my CPU.
I've tried warm 2.2 and really like it. Although I think I'm getting slightly better battery with Azrael X 4.0 with netarchy 4.3.1-cfs-havs-nosbc and ultimate juice controlling only my data and WiFi connections.
Also,the 3500mah battery is worth every penny if you don't mind the extra thickness.

i owe setcpu and screen off seting for my battery life

I read Greenfieldan's step on the forum here about a week ago, and jsut the HTC Method of battery calibration alone changed my battery life completely.
I also dumped Advanced Task Killer.
In another thread, I rad that CM is the worst drain on a battery and I personally think the guy that wrote that is sadly mistaken. Even with all the steps taken in Greenfieldan's guide, Sense based ROMs are battery killers. They are the worst, by far, and I average battery drain at about 15-20% pr hour, even with screen off.
The #2 killer, is having your screen on. Waiting for that next text to come in with the screen on is not worth it, so turn it off when you're not using it.
With the setup in my sig, and moderate to heavy use, in 12 hours, I only drop about 25% with a Sedio 3500maH battery.
With Sense, like I said, quick battery death.

I'm using CM7 - Nightly 12 right now + Stock Kernel...I also have set cpu to change cpu usage when screen is off.
This combo was my first combo I started trying (2 days ago when I posted this) to test for increased battery life. I followed what some of you guys suggested and let it "work into my phone." Instead of giving up after 1 day of test.
Results! Just yesterday I had my phone on for 14 hours and it was at 18%! That is a HUGE improvement. Right now it is at 65% and I've had it on for about 5 hours. That's really long compared to what it was before! Before I tried changing the ROM, kernel and using Set CPU I would be at the red right now or around 15%.
Thanks you guys for all the suggestions! Any further advice would be greatly appreciated! (Only sad thing is that my GPS doesn't work with CM7 - Nightly 12 >_<...) Other than that I love it!

Battery Life Rom REALLY Needed

Hello all
I have been roaming around XDA for a very long time now and I finally made an account because I simply cannot find an answer. I have a samsung vibrant and not the 4g nor can I upgrade(long story). I use my phone when I need it and i text alot. But lately my battery life hasn't been any good, I've tried reconditioning and the whole bit and nothing seems to give me my needed battery life. I am currently using ICS passion 13 RC1 and it works great, when Im not doing anything -.-; When I use it like for the internet or text a lot it drains. I got to 48% in 2 hours one time and thats with limited background processes. I know ALL about the keeping background proccesses and data using apps down so I hardly have any apps installed, which is very irritating at times, I dont even use the facebook app for that reason. I tried many different roms and it seemed Axura had done that best at one point but it was taken down or is no longer supported for whatever reason so I am now in search for a rom that can get me through the day. I text a lot and web browse occasionally. I dont have wifi so i cannot use that to save battery life while surfing so thats out. I would appreciate all the help and will try every rom if i have to lol XD
I appologize for the long message but I am so tired of hesitating to use my phone as a smart phone.

I get good battery life on the ICS Euphoria ROM. Your battery could be shot, you might try replacing it.

Any of the 2.3 or newer roms are going to get bad battery life. Fishmanmod's updating of Bionics has been very smooth and getting great battery life for me.

I find that battery life between 2.2 and ics is pretty much identical for me as long as there are no wakelocks preventing deep sleep. I'm currently on CM9 nightly w/ glitch kernel and deep idle enabled in nstools and have no battery life problems.
You could also look into getting an official 1800mah battery if you really need more juice

ICS Slim hands down the best.
Sent from my SGH-T959 using XDA

Your issue is Passion. That ROM chews through battery worse than any I've ever used in the 2 years I've had my phone.
Sent from my SGH-T959 using Tapatalk

Its not just your Rom, I am on the CM9 nightly and noticed ICS ate my battery by noon today. I was down to 3% from 7am. Granted I am toying with it a bit more but I was still at work so I couldnt use it non stop and I wasnt even watching videos or listening to music on it. I have updated the kernel to SubZero 34 to see if that helps.

Chances are, your battery has lost some of its ability to hold a charge. I recommend buying a new OEM battery, chances are it'll increase your battery life by a good two or three hours.
So far, I haven't noticed a significant variation in battery use in various ROMs, I've found battery life to be more determined by the kernel.
Sent from my SGH-T959 using XDA

On a side note, I destroyed my screen by stepping on it a few weeks ago. Ordered a new AMOLED screen (not the LCD knockoffs) and battery life did in crease by about 3-4 hours. Same OS, same battery.
So I think some excess drain could be caused by the screen, which might explain why some phones had such poor battery and others don't. I also no longer have the "graying/shadow" issue that plagues some of these phone.

So far ive had the best battery life with ICS passion RC2.1 and my 1800mah anker battery

Since flashing CM9 and then putting on the SubZero kernel (34) I did a full charge and decharge to test and got 12+ hours on it with my normal use. So I have to say SubZero kernel really helps out if you are on ICS.

I f you dont mind going back to a 2.2 rom I would suggest trying bionix 1.3.1 fishmanMod or Deranged9 fishmanMod alpha 1 both get awesome battery life especially when mixed with juice defender.

I was also using ICS Passion and noticed a significant degradation in available battery life. I have three batteries so I'm confident it was the From. Until then I had been using various Froyo rooms and all seemed to have better battery life than ICS. I personally felt it was more likely to be your kernel choice that would impact battery life. I just switched to the SLIM ICS from and I gave been very impressed with both the battery and the responsiveness. Same quadrant scores as Passion but it feels so much faster
Sent from my SGH-T959 using xda premium

I haven't taken the dive into ICS yet i may have to try that out.

If you r searching for nice n smooth rom try
[4.0.4][6-Apr]Slim ICS [3.2]
http://forum.xda-developers.com/showthread.php?t=1520919
another thing you can do while flashing wipe battery stats only once....then reboot to normal drain your battery till it reaches 1% charge it full widout any interruption and when it reaches to 100% unplug it and do the calibration from any software available in the market I use Battery Calibration Professionals
https://play.google.com/store/apps/...2ZmZXNpb25hbHMuYmF0dGVyeS5jYWxsaWJyYXRpb24iXQ..
repeat the process for atleast 3 days in a row and you will feel the difference..hit thanks if it helps

@OP ICS is simply not battery friendly. You're going to want to use froyo if battery life is that important to you.
Or you can build a battery friendly ICS rom and let us know how it all is

The later builds of Cyanogenmod9 I have been on the stock kernel and its going all day with moderate use without battery issues.

Leafy_duk said:
Any of the 2.3 or newer roms are going to get bad battery life. Fishmanmod's updating of Bionics has been very smooth and getting great battery life for me.
Click to expand...
Click to collapse
+1
Bionix Fishman Mod is the first custom ROM I've ever installed on my phone and it's battery life is AWESOME. I recently added an 1800 mah battery and I've had 24+ hours on one charge with moderate to heavy use. The ROM itself is smooth as glass and no glitches to speak of.

Trying Bionix
Xdogg said:
I f you dont mind going back to a 2.2 rom I would suggest trying bionix 1.3.1 fishmanMod or Deranged9 fishmanMod alpha 1 both get awesome battery life especially when mixed with juice defender.
Click to expand...
Click to collapse
I just installed bionix-V FishmanMod Final 3. Fingers crossed. I don't mind switching back to 2.2 as long as I have better battery. However I did notice when I reinstalled ICS before going to bionix that just factory, not even logging into the market. I got 1 day and 7 hours of battery life, granted I did not do much but text occasionally and some web browsing here and there. Is it possible that the android market is constantly checking on stuff or there is some data being proccessed constantly? I do live in an area where my signal is not great for 3g like 1-2 bars.

Twist3db1ud said:
I just installed bionix-V FishmanMod Final 3. Fingers crossed. I don't mind switching back to 2.2 as long as I have better battery. However I did notice when I reinstalled ICS before going to bionix that just factory, not even logging into the market. I got 1 day and 7 hours of battery life, granted I did not do much but text occasionally and some web browsing here and there. Is it possible that the android market is constantly checking on stuff or there is some data being proccessed constantly? I do live in an area where my signal is not great for 3g like 1-2 bars.
Click to expand...
Click to collapse
Alright so after about a day with the rom, I noticed it's just as bad. I am still getting battery drain and yes I have a new battery in so it is not that. I unplugged it from around noon, did alot of working on it with reflashes and little bits of texting and mostly just scrolling around the O.S. im now at 44%. its been about 5 - 6 hours.
Although I have been switching the battery between 2 phones and their battery meter is very different. like a 5% difference so that may be confusing it. Will update.