Database Users

King's Kernel - Input Needed

So I basically have Stock 2.2 with a lot of the unnecessary apps removed. The other day I installed King's 4th Kernel hoping for better battery performance but in the end it's a little worse. I'm not blaming the kernel for my performance issues. But I'm looking for feedback to get better battery life.
Right now I am not using Set CPU. I just flashed the ROM, wiped the dalvik cache, and decided not to wipe the battery stats. I've been using the #4 kernel for two days now.
I work my phone pretty hard every day and have a good idea of when it's gonna die. I don't bother bump charging but rather replace the battery with a spare I have on hand.
Any recommendations to fix my problem?
Try a different kernel?
Get Set CPU? I'm not interested in overclocking but I realize other features are available.
Wipe the battery stats?
One thing I can say for certain is that I've been using this kernel with my current setup for 2 days now and battery performance is worse. Something definitely needs to be tweaked in my engine because I shouldn't have to use 3 batteries in one day.
Again, I want to reiterate that I know there are a lot of factors that affect battery life. I'm basing my opinion off of my past battery life throughout the day. It's probably not the kernel but how I have things setup. I'm just looking for some direction to extend the life a bit.

The biggest thing to do will be setcpu. Underclocking during screen off and using conservative governor will drastically improve battery life.

I haven't ever had good luck with the King kernels on my phone. Adrynaline's Custom kernel has worked awesome for me though. Took it off the charger at 11am yesterday, used it regularily and didn't charge until today at 3pm and still had 32% battery left. I use SetCPU for underclocking the phone when the screen is off and that seems to be the best way to save battery. I also don't have anything syncing throughout the day besides gmail accounts.

Ok, well I guess I will start with Set CPU. Sounds like it's worth the cash. Maybe I'll try a different kernel at the same time.
Thanks.

Setcpu is available for free to xda forum members. Do a bit of searching around and you'll find the link to the .apk

Grikshanks said:
The biggest thing to do will be setcpu. Underclocking during screen off and using conservative governor will drastically improve battery life.
Click to expand...
Click to collapse
Setting CPU Max at 555 when screen is off took me from 9-14hours to 25-30hours.
Clearing battle stat seems important
I like interactive mode when it seems to be working right. I don't really know what Interactive mode is except that setcpu will show the CPU jumping to differant frequency instead of ramping up like with conservative.
Sent from my ADR6300 using Tapatalk

Jaguox said:
Setcpu is available for free to xda forum members. Do a bit of searching around and you'll find the link to the .apk
Click to expand...
Click to collapse
I knew this and had forgotten. Fortunately, right before I dropped the cash the light bulb came on. I appreciate the heads up anyway.
Has anyone had luck with King's Kernels?
srt4mn, do you have a link to the kernel you are using?

The kernel comes with the Virtuous ROM and can be downloaded as a separate entity from ROM Manager in his area.

FlairDevil said:
The kernel comes with the Virtuous ROM and can be downloaded as a separate entity from ROM Manager in his area.
Click to expand...
Click to collapse
Ok, cool. I'll give it a shot. Is it tweaked to work just with the ROM or is it safe to install in Stock 2.2 as well?

Clambert11- Sounds as if you wrote your post for me. I haven't tried a custom rom or kernel yet but KK was the what I was considering. I do have setcpu running for a couple weeks now with underclocking for screen off, battery under 50%, and battery under 30%. Have noticed a modest improvement, mostly while phone is asleep at night. Not really much difference with day use. I carry a spare battery and charge at every opportunity.
I'll be watching this thread to see how the new kernel works for you. Sounds like it can be installed over the stock 2.2, yes? Does it require a full wipe?

marcmarshall said:
I'll be watching this thread to see how the new kernel works for you. Sounds like it can be installed over the stock 2.2, yes? Does it require a full wipe?
Click to expand...
Click to collapse
I just installed Virtuous Custom Kernel - Version 2 without any issues. All I did was wipe the dalvik cache. I'm still not a firm believer that wiping the battery stats does anything. Now to setup SetCPU... I will report back in a couple days.

I tried bump charging with wiping battery stats a couple days ago. Didn't see any difference.
I be watching for your post. I'm happy with my rooted stock. This phone has more tricks than a $2000 hooker. The battery life is the big problem for me.

In regards to wiping battery stats, here's what I do and what seems to work good for me.
This is best to do when you have times when you wont need your phone to much.
1. Full charge phone while phone is on
2. Leave USB/power cord plugged in and turn power on phone off
3. Wait for the LED to change from orange to green while phone is off, this means you have a full charge.
4. Power on phone to get to recovery
5. Go to advanced > clear battery stats
6. Reboot phone
7. Pull out charge cable once your phone fully boots
8. Fully kill phone battery without plugging it in to USB or power the phone until it dies completely
9. Turn phone back on with charge plugged in after battery fully dies and phone shuts itself off, charge till 100%
I also keep my screen brightness down really low, this seems to help maintain good battery life too.

Those are good detailed directions. I had been wondering about when to plug and unplug. I also never fully discharged the battery. Li bats don't have memory issues so why fully discharge? Is the claim that this effects or resets something in the OS? If so where does this info come from? I wonder if someone pulled it out of his butt and it has become doctrine. Did you really see a difference? Did you try something else like lower screen brightness or setcpu at the same time?

i've been running bfs #4 on stock rooted 2.2 for about a week now. loaded the kernel through clockwork. it's working good for the most part and i've been keeping it mostly at stock speeds. however, i have noticed an occasional lag here and there (that i didn't noticed with the stock kernel) but no reboots or lock ups. i'm going to disable setcpu to see if that has any impact.

marcmarshall said:
Those are good detailed directions. I had been wondering about when to plug and unplug. I also never fully discharged the battery. Li bats don't have memory issues so why fully discharge? Is the claim that this effects or resets something in the OS? If so where does this info come from? I wonder if someone pulled it out of his butt and it has become doctrine. Did you really see a difference? Did you try something else like lower screen brightness or setcpu at the same time?
Click to expand...
Click to collapse
You pose a good question. I myself dont know the source of the battery stat information, and coming from apple products I've been conditioned to not asking questions, but I can claim from experience that wiping the battery stats help the OS more accurately report the battery percentage.
Since I recently reflashed a new rom and kernal, my discharge rates were rather wonky. The first 15% went pretty fast (as they usually do) since I didn't bump charge. Then it remained normal till 50% when it spiked till 20%, then remained normal till 15% where it took forever to diminish.
Wiping the battery stats will help this number be more consistent since (to me) it helps the OS learn about the battery in conjunction to the kernal being used. I'm assuming that this feature exists because we can swap batteries. Ever curious why apple locks their batteries in their devices? If I had to guess it would be to avoid this whole debacle. They only use one type of battery for each device and as such can report battery percentage more accurately. Plus its easier for them to design.
I've gotten sick of bump charging, so I reset my battery stats after charging to full and not bump charging. This should give me a more accurate drop in battery for the first 15%.
This is all information I've gathered through experience. I do not program these devices, so take it for what its worth. If any Li-ion engineers are around here, help!
Sent from my ADR6300 using XDA App

Just an update. I've been running Virtuous for a few days now. I thought I installed Custom Kernel v2 but the System Settings say v1. I'll have to look into that. Kinda odd.
Anyway, I also am using SetCPU, which I think is responsible for most of the savings I have received. I've got the default scaling set to Conservative. Additionally, I have a Screen Off profile of 245 max / 245 min in Powersave and a Battery < 10% profile of 806 max / 245 min in Conservative.
I'm still playing the kernel / SetCPU game for the optimum settings but I've bought another 1.5 to 2 hours of life without feeling any real performance woes. I'm hard on the phone and use it a lot. That's what we have them for, right?
I had issues with King's Kernel #4. My phone, at times, would get real sluggish without even using SetCPU. I may try some of his older kernels or his next kernel (when it's released) to see how it behaves.
Just wanted to touch base. Thanks for the previous input and guidance.

Thanks for the update! I think my greatest savings so far has been from a screen off profile at about 460 max. I also have a 50% and a 30% profile.

is it me, or are 2.2 ROM's battery hogs?

I have tried both Eugene's and TeamWhiskey's ROM's.. Ginger Clone, OBSIDAN and ONYX. And all 3 have sucked down my battery in about 12 hours flat with me doing nothing to the phone but loading SystemPanel to monitor the CPU and battery. With all the ROM's the CPU usage has been between 3-10% while in idle. zero phone usage. I have refreshed the battery with every new ROM load.
I was previously using TeamWhiskey's 2.1 Bionix Fusion and was seeing between 1-3% CPU usage at idle and had the battery lasting well over 24 hours with minimal use(checking email, couple short phone calls)
Am I the only one having this issue?? Does anyone else use SystemPanel to monitor their CPU usage and can say what their CPU is using during idle??
Thank you for your time and any help/info you may have.

I don't use the modded versions of Froyo but Stock has awesome battery life from my experience. JL5 is looking great as well.

You or anyone else happen to know where I can find a copy of the stock 2.2 ROM/kernel?? I have an unlocked phone in Japan and it's not supported here, so I wont ever get any updates.

Yes the custom roms have terrible battery life. They always have. However, the stock roms have terrific battery life. After a long day of heavy usage I am at 50%
Sent from my SGH-T959 using XDA App

There isn't really a stock 2.2 Rom for Vibrant because it hasn't been released yet. We have leaked builds (JK2, JK6, JL1, JL4, JL5) that are candidates for release. When they actually release Froyo for Vibrant, that will be your stock froyo rom.

The key to great battery life is using the Stock kernel. Flash that kernel on any ROM and enjoy not having to watch your battery indicator all day.

yea, just read a thread about people complaining about that.
guess I'll just flash back to 2.1..
Thanks for all the help.

I flashed nero v2 w/ voodoo and i reset the battery stats, and now im having trouble draining the battery down to nothing.
Fear the beard...

regP said:
The key to great battery life is using the Stock kernel. Flash that kernel on any ROM and enjoy not having to watch your battery indicator all day.
Click to expand...
Click to collapse
Pretty sure I have flashed the stock kernel.. is there any way to tell what kernel im on? phone just says 2.6.32.9

jayprime said:
I flashed nero v2 w/ voodoo and i reset the battery stats, and now im having trouble draining the battery down to nothing.
Fear the beard...
Click to expand...
Click to collapse
I'll give it a try.. nothing to lose.

To drain the battery, I usually turn on Bluetooth, Wifi, GPS, all the good stuff. Then I downloaded this one Flashlight app from the Market which essentially displays one color full screen, default white. Crank up the brightness and run that app on white and it'll really put the hurt on your battery.
Edit: Today I learned that this may be potentially harmful information. Will someone give a good scientific explanation why though? I'm curious to learn more about batteries. However, this is how I've been draining my battery and it is a damn good method if that's what you want done.

Mine says 2.6.32.9 no matter what kernel i flash. Try flashing it just to be sure. I've tried all the ROMs and they all drain hard until I add the stock kernel to them. Though now a days a lot of ROMs include the stock kernel (Macnut and Axura for sure do). The problem with all the custom kernels is they dont seem to let the phone sleep so when your screen turns off the phone keeps draining as if you were using it. Stock fixes this so when your screen turns off barely any power is used. I
But like I said.. reflash it just to be sure.

regP said:
Mine says 2.6.32.9 no matter what kernel i flash. Try flashing it just to be sure. I've tried all the ROMs and they all drain hard until I add the stock kernel to them. Though now a days a lot of ROMs include the stock kernel (Macnut and Axura for sure do). The problem with all the custom kernels is they dont seem to let the phone sleep so when your screen turns off the phone keeps draining as if you were using it. Stock fixes this so when your screen turns off barely any power is used. I
But like I said.. reflash it just to be sure.
Click to expand...
Click to collapse
You happen to have a link to the stock kernel??

EB-Productions Stock Kernel MOD
*Features*
~ Clock Work Recovery
~ Leaked Stock Kernel
Download > http://www.multiupload.com/ELZHKISZTF
Click to expand...
Click to collapse
Taken from Eugene's site.

to the OP, try axura rom. i have tried all the TW, eugene and axura. axuras the only one who gives me a good batt life
Sent from my SGH-T959 using XDA App

Thats because Axura uses the stock kernel

FDokinawa said:
Pretty sure I have flashed the stock kernel.. is there any way to tell what kernel im on? phone just says 2.6.32.9
Click to expand...
Click to collapse
Android is based on Linux and uses the Linux kernel as a base. The Linux kernel your phone's kernel is based off of is version 2.6.32.9

ok.. think I loaded the stock kernel up.. lol I'll let it run for about an hour and see what kind of CPU numbers I get in idle.
Thanks again for everyones help/input.
FYI.. just put it in flight mode for a bit and CPU usage dropped down to almost 0%.. I'm not understanding why it cant do that when the phone is idle.. ahh well.

Idle for an hour should lose no more than 1% battery depending on how much stuff you have polling and updating.

regP said:
Thats because Axura uses the stock kernel
Click to expand...
Click to collapse
No it doesn't.
regP said:
Mine says 2.6.32.9 no matter what kernel i flash.
Click to expand...
Click to collapse
That is just the version.
That version won't change like the baseband does.

[Q] Anyone solved the Virtuous Fusion S3 + Faux's LV GB .7 battery drain reports?

I've seen a couple reports of "horrible" drain when pairing virtuous fusion with faux 123's gb sense kernel.
Running latest clockwork recovery.
Well, I recently flashed the rom (1.1.8) and kernel (LV .0.0.7) and experienced a 400% longer charging time, 65% to 15% drain in about 3-4 hours of moderate use with conservative power settings. If this isn't weird enough, the screen was drinking 92% of this power and the screen was off 80% of the time, auto about 10% and all the way down for about 10%. The battery continued to go down quickly while the phone was idle/screen off. 1 widget, no live wallpaper. No risky apps.
Anyway, I'm going to try to reflash a little less crackily (lol, I just upgraded to this beast from a mt3g w/ cm6!). Also, I'm gonna clear batt stats if it continues to be awful. I will update accordingly. Lastly, I never had time to get setcpu installed.
I just wanted to see if anyone else has a confirmed fix or at least experienced similar issues that remain unresolved.
Thanks button in advance, xda!

you'll get more hits if you were to post this in the Kernel thread and the ROM thread you are referring to.

Yeah, I'm working my way up to those 10 posts.

On faux .7 gb kernel on virtuous fusion I would get 22 hours with heavy usage..and by heavy usage I mean, 5 hrs on screen time, numerous bluetooth phone calls, heavy texting, and xda all day...so I didn't have any battery drain problem
Edit: oh and widgets on all but 2 screens
Sent from my HTC Glacier using XDA Premium App

Have you tried the .8 bfs lv kernel? Using that in conjunction with juice defender I get around 20+"hours" of heavy use, and that's at 1.3ghz oc. I haven't used .7 so I can't chime in on that issue, but that combo had made vf the first sense rom and the only sense rom I've used since rooting this phone.
And btw thanks for doing a legit thread to boost your post count instead of trolling random threads.
Btw if you do go the .8 bfs route, don't forget to flash the .2 first time kernel (i cried the first time I forgot to flash that then forgot to delete pd15.img off my root.. Talk about looping)
Sent from my HTC Glacier using XDA App

@marseillesw
I expected similar battery life from a kernel everyone was raving about (and faux seems impressively knowledgeable). I noticed a couple of people were popping up experiencing "the worst battery drain" and "terrible battery life" with GB Sense .7 UV and VF S3 specifically. I read several suggestions that it needed "time to settle" or a good "battery refreshing". However, I think these people were experiencing the same phenomenon as I did and it was out of control.
@Joker
After reading a bit about BFS (I see why we abbreviate it), I think I will give it a shot. It seems like the perfect kernel for the super interactive video enhancements of Sense 3. It's so pretty I find it hard to go back to my hulu/netflix/grooveshark(untested) capable RoyalGinger rom... Sigh...
Yeah, I didn't want to troll and then post on thread. XDA is teeming with info. However, you see a lot of people asking the same questions over and over again because (much love, don't get me wrong) noobs don't use thread search and the major mod/kernel threads get to be a solid 300 pgs of light to really heavy reading.
How does juice defender's tweaking compare to SetCPU's? I thought it was more like a task killer so I never tried it.
--------------------------------------------------
Going in, I knew it was either an issue with my phone or the flash process.
The good news is, some tinkering solved it. I wiped data/cache/dalvik in recovery, reflashed Virtuous Fusion 118, then let it settle. With the included kernel, I got about 14 hrs of life with 4 hrs of XDA, some talk/text, some customization, power management, etc... all OCed to 1.4GHz on smartass in use, 800MHz conservative screen off & @ <15%.
Next, I wiped CACHE/DALVIK (thus, not erasing setCPU) and flash the UV .7 kernel. Booted, let it settle. Reupped on my setcpu schedules and let it fly. It's been going pretty hard for about 13 hours and it just dropped below 40% life. So, I expect a cool 24-25. Wow.
The other difference i noted was that VF turns "fast boot" on which I had to turn off to access hboot (and recovery) again. It's possible that a true reboot of the phone would have saved me the reflashing trouble, I never tried.
The first time I flashed, I flashed the new kernel without first booting the rom w/ original kernel, I didn't have SetCPU (or any on-boot CPU controls), and I never rebooted with fast boot = off.
My next order of business is to nackup my current shiz and see if I can recreate the battery vortex . If I can, I'll pinpoint which of my sloppy moves was the cause.
3Qs:
A) Is flashing Rom and New Kernel with no reboot between a no no?
2) Is Elixir a reliable, power friendly tool for me to be using for reports? Is there a standard utility? So far, it seems pretty dank.
3) Does it take a lot of work to switch governors? Should I not be switching to conservative whenever it's idle?

Last couple times I flashed vf when evil was releasing daily updates I flashed the kernels before first boot and saw no issues what so ever. Normally I do let I cycle and load all flashes though.
As for juice defender, I just use it to manage my data use. Use set cpu to manage the cpu. Use conservative or power saver scheduler in my 4 hour stretch when I don't use my phone at all. Usually lose 1% battery during that period, then use heavy for the rest of the day. I usually have 70 80% left when I get home
Sent from my HTC Glacier using XDA App

Yeah I think that most people have serious battery drain because they have a rogue app running somewhere in the background that's just eating up resources, so is good to have an app like juice defender or watchdog, that can help pinpoint and identify the culprit...but it sounds like you got a pretty good handle on it now bro..so happy flashing
Sent from my HTC Glacier using XDA Premium App

Battery drain during usage

Hi All,
I've been playing with my Galaxy Note for a few days now (got it last Friday) and everything is going good.
However, after upgrading to RocketRom v22 I noticed my battery drops relatively fast. For example I used the phone for about 15-20 minutes on the way into work this morning and I'm already down to 92% battery.
Are there any tweaks I can do?
Right now batter usage shows the following:
Display 48% (I have it set on auto)
Internet 15%
Cell standby 14%
Idle 9%
OS 7%
System 4%

Try badass battery monitor
https://market.android.com/details?id=com.gsamlabs.bbm
The only app who have found my bad apps
Sent from my VIC-20 / VC-20

Also keep in mind most custom roms come with their own kernel and some kernel's etc just tend to work better for some..
The franco kernel gives me great performace but it tends to drain my battery more then abyss kernel..
Right now Im on abyss kernel 4.1 and battery is pretty good..I'm at like 12% battery with close to 4 hours on screen time...I can definitely deal with that..
Also when you change kernels you need to give them time to set in so wait a couple days and see how things are.

with rocket v22 you can change the brightness settings with jkay mod. try the dark setting and keep the auto brightness setting on. the huge note display causes always the biggest battery drain.
and as already mentioned, try different kernels, always with clearing cache/dalvik/battery stats.

download betterbatterystats app in market and check for background apps that are running on your phone..
check for wakelocks , and it's sometimes good to use a different kernel to try to improve battery performance as well..
used Franco's latest kernel before.. it not only heated up my phone.. but it also speed up the battery drain process.
had to reflash back to another kernel - Abyss Note or SpeedMod to get the stability back.

letters_to_cleo said:
download betterbatterystats app in market and check for background apps that are running on your phone..
check for wakelocks , and it's sometimes good to use a different kernel to try to improve battery performance as well..
used Franco's latest kernel before.. it not only heated up my phone.. but it also speed up the battery drain process.
had to reflash back to another kernel - Abyss Note or SpeedMod to get the stability back.
Click to expand...
Click to collapse
- try not to judge the kernel performance without 2 full battery charging n discharging cycles.
- prior to flashing any kernel use the kernel cleaning script like jbroid's to remove the trace of the old kernel.
- 2 or 3 reboots would be good before regular usage.
- use betterbattery stats for knowing the wakelocks, cpu spy to know the deep sleep mode, battery monitor widget to know the temperature n drain stats.
- once u have reached a stable state of performance and battery life pls stick to it! This is the most difficult part!

Why open a new thread for a ROM specific topic? You downloaded the Rocket ROM v22 and you have a question concerning this ROM. Then pls ask there - I am sure you'll get (more) help.
But, being polite I'll ask what you did in those 15—20minutes? Listening to Internet Radio, web browsing and playing a game or ... if you could specify what you did, it's easier to get help.
Furthermore you could download CPUSpy, to see whether the phone gets into deep sleep (or not).
If not, there are some apps that'll help you out (better battery stats or badass battery, the ones mentioned in the posts above). And then, it'll be user related and neither ROM nor kernel related.
Next thing (already mentioned as well) is how often did you charge your phone? Sometimes ROMs, kernel and the battery need some time to work well together...
And auto-brightness is sometime a battery drainer as well...
Galaxy Note GT-N7000 - GB.XXLB1

Try using a stock rom, with custom kernel. You'll have less problems than the "custom" rom your using.

Battery drain

Hello!
I rooted my phone as of yesterday, I charged it all night and when I took it off today the battery went from completely full to dead withint 3 hours of no use. I did not use the phone at all.
Any ideas?

If you just rooted your phone, you should not have battery drain... Try to temporarily disable root (with Voodo OTA RootKeeper for exemple)

Use better battery stats to nail down which app is causing the drain

Did you try wiping your battery stats in CWM - advanced?
There's also an app, Battery Calibration, on the Play Store that may help with that.
Not uncommon to get weird battery readings after changing rom's or rooting.

slaphead20 said:
Use better battery stats to nail down which app is causing the drain
Click to expand...
Click to collapse
+1 that app will tell you exactly what's bogging down your cpu, and which apps prevent proper deep sleep mode.
Sent from a galaxy far, far away

PermaFried said:
Hello!
I rooted my phone as of yesterday, I charged it all night and when I took it off today the battery went from completely full to dead withint 3 hours of no use. I did not use the phone at all.
Any ideas?
Click to expand...
Click to collapse
This is soooo strange. Not a normal behavior!! Before you root your phone, how the battery lifes goes??? Are you in a stock or modified ROM? Wich kernel are you using?
I faced this issue a couple weeks ago. Android S.O was the culprit and it was driving me crazy. I was using a custom ROM (RemICS-UX). I solved the problem returning to stock and erasing everything, then i reflashed the ROM and the kernel, in my case Devil3 0.79. If you want to give it a try!!
After that my batterys life is pretty fine, during at least 2 days!
Feel free to ask anything you want! Cheers mate
Sent from my GT-I9000 using xda app-developers app

Go through a couple more full charge cycles, if android os usage isn't very high then, it should be fine.
Edit: on second thought, draining the battery without use in 3 hours is extreme, and would suggest that the CPU is running at max speed all the time. If it doesn't solve itself or improve a lot after a few more charge cycles, reflash everything.
Using GT-I9000 my sent Tapatalk 2 from.

Did you just root your phone or did you flash another ROM? Some ROMs have horrible battery life.

The stock battery usage monitor (Settings>Battery) should be enough to tell you what ate your battery. If it's a particular app you're running, try disabling that and see if it improves. If the usage is mostly "Android System", "Mobile standby", or something like that, then you have a tougher problem. The free app CPU spy will let you know if something is keeping your CPU usage high. Better battery stats is pretty cheap and will give you much more specific information.

+1s for BetterBatteryStats and waiting a few charge cycles before judging/debugging your battery drain, especially if you changed your kernel to root or flashed a rom.
I find that after flashing a new rom or kernel my phone, the battery level shown in recovery mode is higher than in the rom's settings, for a couple days. (You can see batt level in semaphore's recovery). I once dud a lazy search about this and found nothing, but I figure that's what is meant about waiting a few cycles gir your battery to calibrate.
sent from a telephonic device

groksteady said:
+1s for BetterBatteryStats and waiting a few charge cycles before judging/debugging your battery drain, especially if you changed your kernel to root or flashed a rom.
I find that after flashing a new rom or kernel my phone, the battery level shown in recovery mode is higher than in the rom's settings, for a couple days. (You can see batt level in semaphore's recovery). I once dud a lazy search about this and found nothing, but I figure that's what is meant about waiting a few cycles gir your battery to calibrate.
sent from a telephonic device
Click to expand...
Click to collapse
or u can just use the app batterycalibration after flashing a new rom

Friend try with this modem..
http://forum.xda-developers.com/showthread.php?t=993576#

TheWeeknd said:
or u can just use the app batterycalibration after flashing a new rom
Click to expand...
Click to collapse
There's no such thing as "calibrating your battery". It's a myth. Wiping your battery stats file doesn't do anything other than reset the tracking of what's using power. It doesn't magically fix your battery meter. Flashing a new ROM doesn't leave left over data, again a myth.
Battery life is never consistent after flashing because your ROM needs to "settle" for a day or two first and during that time your ram and cpu usage are all over the place.
The rest is a placebo effect.
Sent from a galaxy far, far away

Idea
I think I may know what is happening to you as of now. Try to bring up the Battery settings if you are on ICS and take a screenshot and post it here. If my 'spider' senses are correct, your phone did not go to 'sleep' and remained awake.
Since I can't put my signature for unknown reasons...(Maybe because I just created an account since I did not want my old one)
Please donate to [email protected] (html not allowed yet) on Paypal if I helped you

Currently I'm experiencing a huge battery drain too. I used both tools which where mentioned here in this thread and when the drain occours, CPU spy reports that my SGS didnt go in deep sleep at all with turned off display, it was at least at 100mhz all the time! I attached 2 logs from better battery stats and it seems like the NotificationService is causing it?
I'm using JW6 PDA JW4 Modem and JVC CSC in combination with the MNGB 0.5.8 Kernel.

Definitely, now you got to find out what is causing it!

Deleted