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Battery life on custom roms

Ok, I have been flashing for a few months trying to optimize my phone. My last rom was serendipity 6.2, with sp 59 and jl2. I restored to stock (bc I wanted to try something else and hadn't done that in a few weeks) my battery life on serendipity was atrocious.. 6 hours with medium usage. (hardly any calls or messages, looking things up or reading xda briefly) . I spent today on stock, after about 20 hours of light usage I am at 60% left. Now I did flash with a full battery serendipity, wiped battery stats and cleared cache and after several charge cycles and a few days battery life was still awful. I was about to get a new battery. Now I don't mean to single out serendipity, I've had bad battery life on paragon, dilli, and a few others (this time it just got unbearably bad), but why should battery life be so bad on custom roms? Am I alone on this? I hesitate to flash again bc I'm loving having a phone that won't die if I touch it, but I miss the functionality of the device with a custom 2.2.1 on it. Advice or opinions please.
Sent from my SAMSUNG-SGH-I897 using XDA App

I'm having the same problem. Everybody keeps saying they've got excellent battery life and what not with custom roms but mine doesn't seem so good. Wifi is off, I've wiped battery stats, I've used the rom for several days letting everything get situated before I begin thinking about if its good battery life or not. Maybe I'm just expecting too much or I watch my battery a lil bit too much, idk it just seems pretty bad. If I stay on the internet for 20 minutes I've already dropped about 3%
Sent from my SAMSUNG-SGH-I897 using XDA App

The normal Batt live on this phone with normal use is between 12 to 16 hours

I'm thinking part of it may be psychological and part may be usage.
Psychological in the sense that I have an expectation of an improvement, practical in that with my stock rom I haven't reinstalled certain apps like xda and pulse where I spend a lot of time reading and thus using the screen.
That being said I was still experiencing drains of 8% or more per hour when the phone was idle, wifi and gps off.
There is a way to check the cpu's time in each state, but I can't remember where the file is. If someone can, please let me know. I'm curious if under the custom rom my phone wasn't properly scaling down.
I'll probably flash something new tomorrow morning unless I see something shiny and new in the dev forum.
Sent from my SAMSUNG-SGH-I897 using XDA App

So 6 hours seems a bit low then? Could it just be a cumulative effect of flashing rom on top of rom with restoring to stock?
Sent from my SAMSUNG-SGH-I897 using XDA App

eccezarathustra said:
So 6 hours seems a bit low then? Could it just be a cumulative effect of flashing rom on top of rom with restoring to stock?
Sent from my SAMSUNG-SGH-I897 using XDA App
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Yeah 6 hrs does seem a bit low. There are many things that can contribute to it. If you are bouncing between H and 3g on a custom rom will drain it like crazy, I had to disable H and stick with 3g and that helped. could also look at OS monitor to find what is running in the background.

Ok, I did notice that recently I was jumping between h and 3g. I was experimenting with some of the new modems. Should I try finding a better modem for my location?
Sent from my SAMSUNG-SGH-I897 using XDA App

eccezarathustra said:
Ok, I did notice that recently I was jumping between h and 3g. I was experimenting with some of the new modems. Should I try finding a better modem for my location?
Sent from my SAMSUNG-SGH-I897 using XDA App
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I would try others, as well as disable H in the hidden menus, and see how it fairs

@ zelendel.... so by H i assume you mean data... i see alot of back and forth when data is on. i know when data is off i'm still using wcdma from the gsm status, but it doesn't show the 3g icon.
i need my data because i'm from the states but living in australia and alot of my comunications are thru email/facebook.
when i look at battery usage i see rarely more than 5% from cell....usually 90 something from display ( i fiddle with it alot).
can't expect too much cause it's a powerhouse with a tiny battery........
for me the big Q at present is... can we top up the charge regularly or is it always best to let a full cycle run? if i knew it was fine to keep it topped i'd stay 50%+ most of the time i think................

It is not great to keep it topped off. The lithium battery will wear out faster and lose charging capacity over time. this process is sped up the more time the battery spends at a high charge
Sent from my SAMSUNG-SGH-I897 using XDA App

Visit the Samsung web site and read the battery specs for the Captivate. The stock battery is only rated for 5 hours and 50 minutes of active phone use (which means the display is active). In sleep mode (display and other features of the phone are shutdown) the battery is rated for up to 300 hours (12.5 days).
I have NEVER seen a stock Captivate last for over 3 days in sleep mode. As for active phone use (display is active) my experience with several of the custom ROMS (Cognition, Paragon, Andromeda, and now my favorite, Continuum) is that the battery life is either on par with the stock ROM, or exceeds it. The kernels on some of these custom ROMs are more efficient than that of the stock ROM due to the many tweaks and cleaning up of bloated apps and code by the developer.
I can't bring myself to keep a stock ROM now that I have used some excellent custom ROMs like those I name above.
As for flashing custom ROMs and seeing fast battery drain goes... I have had that experience with those I listed, but usually I was able to resolve the issue by ensuring my battery was at 100% (meaning showing that amount both on and off) and reflashing, or finding the cause of the high battery usage and going from there (e.g. I have had to reflash modems). Another thing I do, mainly out of habit from compiling code and deploying it in dev and test environments, is to make sure that I am working from a known good baseline ROM before flashing a custom ROM. In this case I always return to the stock ROM you can flash through Odin One Click. That way if you have battery problems after flashing a custom ROM you can have a good idea as to what is causing those problems. This is, of course, just a matter of personal preference. Some have repeatedly flashed one custom ROM over another with no issues. YMMV

fractaline said:
@ zelendel.... so by H i assume you mean data... i see alot of back and forth when data is on. i know when data is off i'm still using wcdma from the gsm status, but it doesn't show the 3g icon.
i need my data because i'm from the states but living in australia and alot of my comunications are thru email/facebook.
when i look at battery usage i see rarely more than 5% from cell....usually 90 something from display ( i fiddle with it alot).
can't expect too much cause it's a powerhouse with a tiny battery........
for me the big Q at present is... can we top up the charge regularly or is it always best to let a full cycle run? if i knew it was fine to keep it topped i'd stay 50%+ most of the time i think................
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No what I mean is disable HSDPA I think is the term lol. Sense you go back and forth I would say to disable that and just use 3g only.

If you don't know the code to get too the menu download sgstools it has the hidden menu keys.

Sorry but where can I find the hidden menus?
Sent from my SAMSUNG-SGH-I897 using XDA App
EDIT: just saw the last post thanks

I am the opposite, I got horrible battery on stock. Could not even make it through my work day without it dying on my way home unless I charged it midday. Now I am running Serendipity 6.2 and unplug at 7:30am and it is now 8:30pm my time and I have 30% remaining....
I have also tried other customs roms with noticeable improvements in battery life over stock but for me Serendipity gives me the best performance and battery.
Sent from my Galaxy S Captivate with Serendipity

try apex5.1 room with tl3 modem comb
i used about 50 phone call, 2 hour websurfing, email sending, checking.
i still have 41% left, 1day 10hour 50 min.

Could I have a faulty battery? I rooted and rommed cuz of my battery life being terrible but It still is bad
Sent from my SAMSUNG-SGH-I897 using XDA App

I had the exact same issue as you. I tried Darky's 9.3 first, then Serendipity 6.2, then Cognition 4.2.1. Each had major battery drain, meaning 6-8 hours with moderate use, and even without any usage it would drain 25% over 3 hours.
Use One-Click to flash back to stock JF6, then immediate do a Master Clear from the One-Click program after it has finished booting. Obviously move everything to an external SD or the computer prior to all of this, and make sure the external SD and SIM are out when flashing.
My battery has lasted for 14 hours today, and I'm only down to 54%. This is with about 1hr 20min screen on, ~30min voice calls, and always connected via 3G/H with background sync on, weather widget, and moderate web browsing.
Current setup: Serendipity 6.2, Speedmod K13C, JK4 Modem

Trying again
I couldnt keep myself away from custom roms, how i missed tethering, the custom theming, non marketplace apps and so much more...
Im trying Dilli's 7.1.1, bump charging at the moment...
Last night I drained my battery to 5% when i finally fell asleep... 6 hours later it was at 4%. Finally it drained and would not power on at all. Not even the backlights. Plugged it in for an hour and thought to take the sim card out so i would have a phone for the hours it would take to charge. When i plugged it back in the phone jumped from approximately 10% to 40% charged...
Oh well.

I have also been bouncing around flashing diff roms like crazy. I have to say though, I am using Continuum v4 with Hardcores speedmod Kernel K13D. I have been doing pretty good on this combo. Lasts for most the day with normal use.

Battery life is better on sense than aosp.

Is it just me or do i get better battery life on sense froyo roms then i do on aosp gingerbread roms. On aosp i lose anywhere from 7-10% battery per hour, standard use, and on sense i lose 3-7% per hour, standard use. I am on Bamf Remix 1.8.6 with the desense script, and the aosp roms i tried were cm7 and omfgb. I really wish i got good battery life on aosp, it is so much smoother and quicker, but I need my battery to last as ling as possible. Am i alone here or what?
Sent from my ADR6400L using XDA App

You're going to get better battery life on Froyo over Gingerbread.
What are your setting though, I go all day with pretty good usage (browser/text/facebook/youtube/Music) and I'm always good to go.
I'm running CM7 stock kernel. Display at 40%, 4g disabled when not needed, Wifi disabled when not home and I can't really say I have any complaints.

ScoobarSTI said:
You're going to get better battery life on Froyo over Gingerbread.
What are your setting though, I go all day with pretty good usage (browser/text/facebook/youtube/Music) and I'm always good to go.
I'm running CM7 stock kernel. Display at 40%, 4g disabled when not needed, Wifi disabled when not home and I can't really say I have any complaints.
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Click to collapse
I thought always thought that aosp GB was supposed to have better battery life.....
I had imoseyon lean kernel on battsaver and ondemandX, wifi off because I'm almost never home, 4g on, all the same settings I run on BAMF. Display at 25% usually unless the sun is blaring.

just curious did you wipe batt stats do a full drain and recharge and see what you got after that?

No, I'm guilty of not doing that. I guess I should try that shouldn't I?

I found the best battery life on Liquid ROM, which is GB.

xCHPx said:
No, I'm guilty of not doing that. I guess I should try that shouldn't I?
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Click to collapse
Can't hurt. I wipe batt stats every time I flash a rom.

Yknow, I'm on the 'stock' BAMF 3.0 rc4 and I'm at 57% after 8 hours with moderate usage, but using juice defender. I also use the OTA Mr2 mod.
sent from my rooted Thunderbolt with das BAMF 3.0 rc4

xCHPx said:
I really wish i got good battery life on aosp, it is so much smoother and quicker, but I need my battery to last as long as possible.
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Click to collapse
There is a simple solution. Get an extra or extended battery, and you won't have to worry about it.
Sent from my ADR6400L using XDA App

sublimaze said:
There is a simple solution. Get an extra or extended battery, and you won't have to worry about it.
Sent from my ADR6400L using XDA App
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Although that's an obvious solution. There's more he can try before he goes to spend the money for an extra battery. I honestly don't see a need for an extended battery and I play around on my phone all day. When I get in the car charge it. When Im at home on the pc charge it.

I definitely get better battery life on Froyo sense than aosp gb. I, personal, think I get the best battery life on a stock version. I'm currently running the rooted OTA and the OTA MR2 radio and am getting great battery life (4g off, don't have it in my area till the end of the month).
I wish CM7 got good battery life. I like it better than any ROM I've tried, but can't get over the battery drain. It's ok though, I like Sense a lot too.
But you know what they say: To each his own.

to each his own is right
But on the same platform (froyo vs gb) i just dont think you are going to get tremndous variations in battery life. There may be an outlier rom that uses it quickly by most of the roms are in the same ballpark. i think we are talking about squeaking out an extra 20-30 mins which is not nothing but 8+ hours of a battery charge i would be more inclined to go with whatever rom i like best. When GB is released for real, then we may see some improvements across the board.

dhy8386 said:
to each his own is right
But on the same platform (froyo vs gb) i just dont think you are going to get tremndous variations in battery life. There may be an outlier rom that uses it quickly by most of the roms are in the same ballpark. i think we are talking about squeaking out an extra 20-30 mins which is not nothing but 8+ hours of a battery charge i would be more inclined to go with whatever rom i like best. When GB is released for real, then we may see some improvements across the board.
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Agreed
Sent from my HTC Thunderbolt

???? I get much better battery life on CM7 over froyo and TB sense. I'm talking 50% more per day. CM7 wont be leaving my bolt anytime soon.
Sent from my ThunderBolt using XDA App

That's great but that's not the norm. Its clearly your setup. I'm only saying that because if it were true then we would all be using it
Sent from my HTC ThunderBolt using Tapatalk

bhazard451 said:
???? I get much better battery life on CM7 over froyo and TB sense. I'm talking 50% more per day. CM7 wont be leaving my bolt anytime soon.
Sent from my ThunderBolt using XDA App
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I have to agree. CM7 has been way better than any other rom i've tried.

CM7 with Kang Bang does best on mine, but you can't compare sense froyo to aosp GB. That's too many different factors. That's a different framework, different kernel structure, different ROM. How do you know what the culprit is?

I'm running BAMF 1.8.6 as well on standard battery.
I just charge at night, take the phone to the car or motorcycle for commute and place on charger. When at work, I have another USB charger with micro USB cable. Charge when at desk. Reverse procedure for drive home.
Battery is great when only off the charger for ~4 hours per day. :-|

It seems that sense battery life is better. I've been on cm7 for a couple weeks now and my battery will be nearly dead by this time every day. So I'm getting 5 to 6 hourz max with cm7. I'm on gingertheory now with dream kernel and setcpu running a few profiles, battery life is at 70%. May have been using it a little less today but still that's a big difference.
Sent from my ADR6400L using Tapatalk

Getting the 2750mah extended was the best investment you can make into this phone, hands down. If your phone goes naked, then the difference in thickness is not that bad. In fact I love the new added thickness. It keeps my camera lens off the surface when I put it down flat. Not to mention it adds a certain heftyness that just exudes quality.
Sadly though I got an unlucky battery cover which creeks if you squeeze just a smidge on the sides
Other than that, man is it great. I can go about 48 hours without charging on CM7.1. At the end of the 48 hours, my screen would have been on for roughly 5-6 hours. That means nearly 3 hours of screen on time a day. If you sleep for 8 hours a day, that leaves 16 hours of awake time. 3/16 means nearly 20% of my time awake was spent looking at my phone. Hardly minimum usage, and if its not considered heavy then I fear for future generations. Screw these kids today 12 years old with a smartphone lol. I didn't get my first cellphone till I was a senior in highschool (2004) and even then, it was a crumby flipphone just for the sake of making calls and in case I was in trouble.

so is Gingerbread or Froyo better for battery life on the charge?

Which is better for the charge?

About same. No huge difference. I have a spare so I don't worry too much about it.
Sent from my Gummy Charged GBE 2.0

but is there any kernal out that support OC and undervolting? i cant seem to get SETCPU to work.

Technically Gingerbread manages everything better than Froyo and is better for battery life but because of all the ROM's and kernels available to us it's really a toss-up. I personally run Gummycharged Gingerbread because it is ridiculously fast, supports everything, and is great on battery. On a previous Gummycharged GB I was able to pull 2 days on a single charge with light-normal usage; like doing everything except playing games.

Syn Ack said:
Technically Gingerbread manages everything better than Froyo and is better for battery life but because of all the ROM's and kernels available to us it's really a toss-up. I personally run Gummycharged Gingerbread because it is ridiculously fast, supports everything, and is great on battery. On a previous Gummycharged GB I was able to pull 2 days on a single charge with light-normal usage; like doing everything except playing games.
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really?? wow, all i read is how terrible battery is on Gummycharged GB...your the first i have heard say that about battery life...
how about the rest of you??? good or bad battery life on Gummy GB?

dvigue said:
really?? wow, all i read is how terrible battery is on Gummycharged GB...your the first i have heard say that about battery life...
how about the rest of you??? good or bad battery life on Gummy GB?
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excellent life for me on Gummy GB, i get a full day on average depending on what I do though let me clarify a 'day' for me is about 16+ hours from when I get up till I get home and/or go to sleep... either way I think even with OC/UV on froyo I do better on GB but I always end up back on froyo for the themes lol

I've had better battery life on GB than on Froyo. It's anecdotal, but it's what I've observed. On top of that, Juice Defender works on GB, so you can make the battery that much better. With JD Ultimate with some aggressive settings and careful use, I could pull a day and a half out of the battery.

shrike1978 said:
I've had better battery life on GB than on Froyo. It's anecdotal, but it's what I've observed. On top of that, Juice Defender works on GB, so you can make the battery that much better. With JD Ultimate with some aggressive settings and careful use, I could pull a day and a half out of the battery.
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Glad to hear you make the differentiation and say JD works on GB... I run a rooted Froyo and tried JD last week. The data radio would not come back on when I brought the phone out of sleep state. Had to re-boot to get data back.

Chopstix9 said:
Glad to hear you make the differentiation and say JD works on GB... I run a rooted Froyo and tried JD last week. The data radio would not come back on when I brought the phone out of sleep state. Had to re-boot to get data back.
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You're right that it does not work on Froyo. There's a bug tracker on the Latedroid website about it. They said last week that it would never work with Charge on Froyo due to a "terrible bug" as they put it. I've tried different combos of ROM and radio on the phone and the problem has nothing to do with the radio and everything to do with the Charge Froyo Touchwiz implementation.

Read this forum
http://forum.xda-developers.com/showthread.php?p=17506607
someone had already asked about this and it was confirmed that battery is diff better on froyo they actual took a poll and everything and about 85% of users was having major battery issues on gingerbread.

cstokes81 said:
http://forum.xda-developers.com/showthread.php?p=17506607
someone had already asked about this and it was confirmed that battery is diff better on froyo they actual took a poll and everything and about 85% of users was having major battery issues on gingerbread.
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Click to collapse
You couldn't have failed anymore in this statement. For a lot of reasons. First of all, users that experience major battery issues with Gingerbread fail at flashing or calibrating the battery. Second of all, you're comparing it to a completely different phone! That isn't even a Charge! How can you even put that on our forums? Troll elsewhere.

Rythmyc said:
You couldn't have failed anymore in this statement. For a lot of reasons. First of all, users that experience major battery issues with Gingerbread fail at flashing or calibrating the battery. Second of all, you're comparing it to a completely different phone! That isn't even a Charge! How can you even put that on our forums? Troll elsewhere.
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because obviously apples are the same thing as horseshoes.
yeah that poll is pointless in here.

piizzadude said:
because obviously apples are the same thing as horseshoes.
yeah that poll is pointless in here.
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Click to collapse
PONIES! wait...what?
Sent from my Droid Charge running GummyCharged 2.0

Nothing could be further from the truth. Battery life on GB is much better as well overall performance .
Sent from my SCH-I510 using Tapatalk

John
I have tried a few EE4 & a few GB ROMs & I don't see much difference in battery life myself.
GB is certainly not WORSE than FROYO & may be slightly better. The difference is really negligible however, all ROMs get basically the same battery life - it is the kernel that can make a difference & even then it isn't all that much.
~John

And honestly it depends on your usage, if i just check for text messages once or twice an hour for the day, from 7AM - 5PM, i can have 44% Battery life left.
If i use some web browsing, and am texting every 30 mins or so, i'll be down to 20% Battery by 5PM.
If im watching youtube vids and using 4G, i'll be barely getting by at like 5% battery by 5PM.

I've tried danalo's HumbleComb ROMs, both -Froyo and -Gingerbread based. I believe he used IMoseyON's kernels on both ROMs.
I've battery tested both (battery consumption while fully configured and sitting idle - email and other minor background bandwidth consumers), and the battery drain was basically identical between the ROMs.
I saw a static drain of 2%/hour on both ROMs, which would be almost 2 days of battery life if the phone sat idle with minor background consumption.
With moderate use, I can easily make a full day on either HumbleComb ROM.
danalo's ROMs are pretty darned fast, to boot - Quadrant scores of 2040 on my HC4 GB loaded phone (Note: The Quadrant scores were faster before all my stuff was loaded on the phone).
And, danalo's HC4 GB ROM is pretty darned fast to boot, too - slightly under a minute (The -Froyo based ROMs were closer to 2 minutes).
Cheers,
¿GJ?

so what is the differnce in FroYo and GB?

gdubya34 said:
so what is the differnce in FroYo and GB?
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Hey, this guy seemed to have an answer to your question:
¿GotJazz? said:
I saw a static drain of 2%/hour on both ROMs, which would be almost 2 days of battery life if the phone sat idle with minor background consumption.
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I added the emphasis. I don't believe the author will mind.

terrible battery life

ok so here's the deal.. my phone has been off the charger for about 4 hours and im already down to 40% left. I live in a 4g area but it is spotty in many areas, including my workplace. I have gps (for weather updates and nav, when i need it) and wifi on at all times. i am running the EP4P modems on GummyCharged Froyo ROM 2.0. I have the screen brightness turned all the way down. No overclocking.
Kernel: 2.6.32.9 [email protected] #30
I have tried several different methods to calibrate the battery but it doesnt seem to help. When i'm at home and using wifi the battery life is pretty good. so is it my modem? the ROM? my kernel? Can anyone help me get the most out of my phone? I've tried various modems but have stuck with GC since I loaded it back in sept.

If you are in a spotty area, that can happen. Searching for signal and 4G/3G switching can drain the battery very fast. I would try putting the phone in cdma mode while you are at work or any other spotty area.
Turn off wifi and gps if you are not currently using them, wifi scans for networks regularly and you may have apps/widgets that are using the gps/ network location services while you are idle

also, my battery stats say that display is using up 45% (as of now) of my battery life with 23 mins of usage time. I have the wifi turned on for my convenience, but it doesn't scan for networks as i've turned that function off. I will try the cdma switch, but I have also tried that before and I don't think it makes too much of a difference.

leaveone said:
also, my battery stats say that display is using up 45% (as of now) of my battery life with 23 mins of usage time. I have the wifi turned on for my convenience, but it doesn't scan for networks as i've turned that function off. I will try the cdma switch, but I have also tried that before and I don't think it makes too much of a difference.
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Click to collapse
The battery usage metrics aren't useful until you've been up for several hours. And having the screen using a high percentage is ideal -- it means that the rest of the system is throttling like it is supposed to.

How long have you been on GummyCharged? A few weeks into having that on my phone happily, battery life took a nose dive similar to what you are experiencing. I flashed back to stock and battery life is much better. Waiting for official GB before trying another ROM.

bluevolume said:
The battery usage metrics aren't useful until you've been up for several hours. And having the screen using a high percentage is ideal -- it means that the rest of the system is throttling like it is supposed to.
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Click to collapse
i see your point but im now at 5 hours uptime with 23% battery left.. light/medium usage. display still says 46% battery use with 25 mins of usage time. that seems like incredibly too much battery drainage.
also, when i put the phone into cdma mode do i select the home or automatic option, and what is the difference?

schnablebg said:
How long have you been on GummyCharged? A few weeks into having that on my phone happily, battery life took a nose dive similar to what you are experiencing. I flashed back to stock and battery life is much better. Waiting for official GB before trying another ROM.
Click to expand...
Click to collapse
i flashed GC onto my phone in mid september. since then i've tried calibrating the battery several times. a totally futile exercise it seems. What setup are you running now? 2.2.1 with EE4 modem? Rooted?

The only thing that has solved my battery problems is juice defender. Sitting idle for eight plus hours at night I only drop about 3-5%. Of choose it still drains just as quickly while using the phone but it will help if you're in a spotty area because data is turned off if your screen is off.
Sent from my SCH-I510 using XDA App

I've never had good luck using a modem from one rom with a DIFFERENT rom/kernel. Always docreased my performance.
I find it odd that Battery is the only issue you are having.
Sent from my SCH-I510 using XDA App

I have similar issues. After rooting and flashing Humble on my phone, my battery life sucked, much much worse than stock.
I then put the standard 2.3.6 on it and it still sucks. Full 4G all day, barely use it.
It's sat on my desk at work all day today. Sent a few texts. I've installed betterybatterystats and nothing is taking up a large portion of partial wakelocks.
Really don't understand how people are getting such good numbers...

I find that by far and away the best way to increase battery life is to lock my phone in 3G unless I am downloading something & want the 4G speed.
I have a home screen widget that turns 4G on/off & only turn on 4G occasionally. I do not leave WiFi on although I leave GPS on at all times & find that uses almost no battery life whatever.
~John

jmilacek said:
I have similar issues. After rooting and flashing Humble on my phone, my battery life sucked, much much worse than stock.
I then put the standard 2.3.6 on it and it still sucks. Full 4G all day, barely use it.
It's sat on my desk at work all day today. Sent a few texts. I've installed betterybatterystats and nothing is taking up a large portion of partial wakelocks.
Really don't understand how people are getting such good numbers...
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I thought my battery was bad then i looked at that graph. I don't even get it... The screen is mostly off and the signal is green most of the time.
It may be some rogue app on your phone. Backup your apps and do a factory reset. If your battery life significantly improves, restore your apps one by one and find the culprit.
Sent from my Gummy Charged GBE 2.1 using XDA App

JihadSquad said:
I thought my battery was bad then i looked at that graph. I don't even get it... The screen is mostly off and the signal is green most of the time.
It may be some rogue app on your phone. Backup your apps and do a factory reset. If your battery life significantly improves, restore your apps one by one and find the culprit.
Sent from my Gummy Charged GBE 2.1 using XDA App
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Click to collapse
I see that you're running GC GBE 2.1, did they happen to fix the hotboot issue that im experiencing in the older release?

leaveone said:
i flashed GC onto my phone in mid september. since then i've tried calibrating the battery several times. a totally futile exercise it seems. What setup are you running now? 2.2.1 with EE4 modem? Rooted?
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Just stock EE4, unrooted, will do OTA as soon as I get the notification. Battery life is not that good, I can get 14 or so hours of use leaving it on 3G most of the time, but on Gummy I would get 50+% drain just having it sit overnight. Now leaving it sit overnight doesn't kill it.

leaveone said:
I see that you're running GC GBE 2.1, did they happen to fix the hotboot issue that im experiencing in the older release?
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Hotboots are there but only like one every 2 days. The status bar glitch is still there. I use gc because i can't stand the default lock screen.
Sent from my Gummy Charged GBE 2.1 using XDA App

JihadSquad said:
Hotboots are there but only like one every 2 days. The status bar glitch is still there. I use gc because i can't stand the default lock screen.
Sent from my Gummy Charged GBE 2.1 using XDA App
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hmmm.. and what glitch is that?

leaveone said:
hmmm.. and what glitch is that?
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If you pull out the charger at 100%, it force closes (rest of phone is usable) and comes back inn a few seconds.
Sent from my Gummy Charged GBE 2.1 using XDA App

leaveone said:
ok so here's the deal.. my phone has been off the charger for about 4 hours and im already down to 40% left. I live in a 4g area but it is spotty in many areas, including my workplace. I have gps (for weather updates and nav, when i need it) and wifi on at all times. i am running the EP4P modems on GummyCharged Froyo ROM 2.0. I have the screen brightness turned all the way down. No overclocking.
Kernel: 2.6.32.9 [email protected] #30
I have tried several different methods to calibrate the battery but it doesnt seem to help. When i'm at home and using wifi the battery life is pretty good. so is it my modem? the ROM? my kernel? Can anyone help me get the most out of my phone? I've tried various modems but have stuck with GC since I loaded it back in sept.
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you prob shouldnt be using that ROM..its kinda outdated...just flash the new ALL IN ONE ODIN of EP4D...my battery life is pretty sick...i left it unplugged all night and saw a tiny drop..my phone was connected via wifi tho..if my phone is in 4g the battery loses pretty quickly or if my screen is on ultra bright..

I'm running the stock, rooted, manually-debloated EP4P and I've been getting downright stellar battery life.
My kids watched an hour of Netflix this morning while getting ready, and now (almost 10 hours later), I'm still at 63%.
But! (and here's the kicker) - I leave WiFi on all the time (I'm contemplating buying Woofi to save even more battery when I'm not at home or work) and have my WiFi sleep policy set to "Never".
This is (one of) the key(s). It doesn't matter how strong your 3G or 4G signal is, WiFi will always save you battery. 3G is less battery intensive per-time, but much more battery intensive per-byte. 4G is less battery intensive per-byte, but much more battery intensive per-time. WiFi is much more battery intensive per-time, but wildly less battery intensive per-byte.
In other words, for the same download, you'll use the least battery on WiFi (even with a slower than LTE connection), 4g in the middle, and 3G the most.

AlexDeGruven said:
I'm running the stock, rooted, manually-debloated EP4P and I've been getting downright stellar battery life.
My kids watched an hour of Netflix this morning while getting ready, and now (almost 10 hours later), I'm still at 63%.
But! (and here's the kicker) - I leave WiFi on all the time (I'm contemplating buying Woofi to save even more battery when I'm not at home or work) and have my WiFi sleep policy set to "Never".
This is (one of) the key(s). It doesn't matter how strong your 3G or 4G signal is, WiFi will always save you battery. 3G is less battery intensive per-time, but much more battery intensive per-byte. 4G is less battery intensive per-byte, but much more battery intensive per-time. WiFi is much more battery intensive per-time, but wildly less battery intensive per-byte.
In other words, for the same download, you'll use the least battery on WiFi (even with a slower than LTE connection), 4g in the middle, and 3G the most.
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is there an odin file for what you have or did you do the manually debloating after rooting?

Anyone having crappy battery life with ICS?

Just curious is it just me or does the Skyrocket have ****tier battery life running on ICS compared to it running on Gingerbread? Anyone else having battery problems. I've been running ICS on my I727r for 2 days now and the battery life is very questionable. Probably a battery stat reset will work :S

arberthebarber said:
Just curious is it just me or does the Skyrocket have ****tier battery life running on ICS compared to it running on Gingerbread? Anyone else having battery problems. I've been running ICS on my I727r for 2 days now and the battery life is very questionable. Probably a battery stat reset will work :S
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I've found my battery life better. I haven't put down my phone since, and the battery life is on par with GB with my phone in deep sleep in my pocket. Lol
I did do a battery stat wipe and drained it and recharged it to full.
Sent from my SAMSUNG-SGH-I727 using xda premium

Yeah, my battery went out pretty damn quick yesterday, but that could be because I've been fussing with my phone more than normal.

The first day of using ics my battery life was okay. The second day my battery life sucked. Why? Because I set up Facebook. Battery manager showed 10% use and I hadn't even checked it. Its the bloat!
Sent from my SAMSUNG-SGH-I727 using xda premium

arberthebarber said:
Just curious is it just me or does the Skyrocket have ****tier battery life running on ICS compared to it running on Gingerbread? Anyone else having battery problems. I've been running ICS on my I727r for 2 days now and the battery life is very questionable. Probably a battery stat reset will work :S
Click to expand...
Click to collapse
Same, my i727r battery life is horrible since i flashed ICS.
I have noticed that my android system is pulling a lot of juice compared to GB. I made some changes today like freeze all the bloat + installed UCLC4 modem. And wiped battery stats + complete drain and discharge of the battery. Lets see if it get better after a few cycles.

My battery seems a lot better! Way way way better. 25 minutes of web and its still full!
SkyRocket [ICS-Leak 4.0.3]

arberthebarber said:
Just curious is it just me or does the Skyrocket have ****tier battery life running on ICS compared to it running on Gingerbread? Anyone else having battery problems. I've been running ICS on my I727r for 2 days now and the battery life is very questionable. Probably a battery stat reset will work :S
Click to expand...
Click to collapse
Battery has been much better for me with ICS.
Freezing tons of bloat helps..

My battery life has been horrible on ICS but when I look at the battery thing, Face Unlock used 35% of my batter (when my batter was 5% left) o-o it takes THAT much?

My battery life is absolutely amazing with ICS.
I have the stock rom debloated completely, and a lot of junk is disabled. Coupled with turning off auto brightness and leaving data off when i don't use it, the battery just chugs along.
This morning I got in my car at 7 AM, started playing music full blast through the stereo for an hour. Got to class, played some temple run, approximately a half hour worth. 30 texts or so, one 1 minute phone call. (data was off the entire time, it keeps facebook from butting in from behind) My battery has literally only gone down 10%, and it's 1 PM
I'm in love.

Seems fine here, I usually have it plugged in but today am testing it without. The couple charge blips are from when I had to get some files off of it.
I froze a bunch of the AT&T bloatware, have had Wi-fi, BT, GPS enabled the entire time. Moderate/light use... I've attached some screens.
I'm running http://forum.xda-developers.com/showthread.php?t=1567817 with the flashable ICS modem.

My battery has been horrible but it's only been a day for me and my signal has been fluctuating a lot on day one. It's stabilized now so we'll see after a few days of use. But right now it is horrible.

It seems mine is doing worse.
But I have been adding a lot of stuff since this is my first time rooting.
I am about to get a battery depleted(at 12% right now) and reset the battery statistics and install the OEM battery.

nest75068 said:
It seems mine is doing worse.
But I have been adding a lot of stuff since this is my first time rooting.
I am about to get a battery depleted(at 12% right now) and reset the battery statistics and install the OEM battery.
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Click to collapse
I thought there was a lot of debating over deleting the battery stats, i remember an article from a google programmer saying that it actually decreases battery performance...i personally stopped doing it a year ago and noticed a better batter experience, most of the time bad battery comes from a bad flash or apps that run in the backround and use location services

My battery life was horrible with ICS so im back to GB. At work with phone in pocket for 2hrs and was already down to 75% off killing battery and charging it fully next day. When I got home after 8hrs of work already at 50% and thats when its in sleep mode. Using it I would drain 1% every couple minutes definitly bloat. Might try new debloated ones but kinda skeptical since GB gives me amazing battery life.

Once the kernel source drops custom kernels will make all you guys stop crying your all used to optimized stuff not samsucks stuff lol give it time
Sent from my SAMSUNG-SGH-I727 using Tapatalk

mjwhirly said:
I thought there was a lot of debating over deleting the battery stats, i remember an article from a google programmer saying that it actually decreases battery performance...i personally stopped doing it a year ago and noticed a better batter experience, most of the time bad battery comes from a bad flash or apps that run in the backround and use location services
Click to expand...
Click to collapse
Well condiering I have never reset them and did this first and only flash of the ICS leak, I'm hoping it helps out. We'll see what happens.
I have Juicedefender turning everything off while sleeping(set widgetlocker to deinied so when locked, widget locker stays active to be ready, and juicedefender see's that and turns off data)
On my 2100mAh nexus battery I barely got over a day(was getting 36-40 hours on GB)
Either way, I have two batteries so I'll deal with it until either an official ICS release or a new rom with better battery performance comes around.

I also have the nexus battery. Def have less battery life with this version of ics .
It could be the algorithm the use. At the start of the day is slowly draws down. As the day goes on it seems to drain faster
Sent from my SAMSUNG-SGH-I727 using Tapatalk

Actually, I have been having the Best battery life to date. I will post my list of APK's that I removed. I don't do FB or anything like that, so not sure if that is affecting it. Also, in a non LTE area. on the UCLA3 kernel, I was absolutely getting horrid battery life.

I live in an LTE area and I am getting almost a full day of use. Never got that with GB. I keep wanting to charge it, but I dont have to.
I do have Juice Defender running though, and it disables my data in 15 or 30 min intervals when the screen is locked. And I have SetCPU which limits the CPU to a max of 384 when the screen is locked.

creedicd said:
I also have the nexus battery. Def have less battery life with this version of ics .
It could be the algorithm the use. At the start of the day is slowly draws down. As the day goes on it seems to drain faster
Sent from my SAMSUNG-SGH-I727 using Tapatalk
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Click to collapse
Battery discharge isn't a linear function my friend.
Sent from my SAMSUNG-SGH-T989 using Tapatalk