Database Users

Battery drain

Hy guys, I know that you're always disturbed by these questions, but I'd really like to find an exact answer for my question: is there any solution to increase the battery life with one charging? I use Damnian kernel and ultimate ROM with the basically given setups. Today with absoluttely no usage my SGS scored an 8 hour long battery result, which isn't so good I guess. So what I need to change or recalibrate to improve these results? In some other topics I read about 2 days bat life, but I can't believe that... in the meantime I'm writing this post my battery indicator shows 96 % and when I started typing it was on 100%!!
Thanks for your help, and I hope I'll get a useful feedback.
Best regards, Henry (95% now!).
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I usually get a whole day use with lots of use. Maybe you installed something which drains your battery?
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I didn't install any program which could use my battery so hard. I was on Darky 9.3 before, than I upgraded to 9.4but there was some issue with calling and wifi driver and finally I installed damnian kernel and ultimate rom via CWM. I have to mention that neither with 9.3 nor with 9.4 I hadn't got a good battery life, but its annoying that with no use(screen off) it drains 30-40% in 5-6 hours...
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Some simple tips that you may already know:
Turn off wifi when you're not actively using it. Same with gps.
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I usually turn off the wifi if I don't use it, the GPS too, and yesterday I also switched to edge instead of 3g... I'm on 92% now, is that okay? Who knows that there is no problem with my battery just I'm so scared about that, LOL
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I think is the network problem.I have SGS in vodafone UK with stock jpy and that drains battery like hell.Friend of mine have the same jpy stock rom with orange UK and his phone can last about 2 days when mine last only hardly one day.And also i think it depends about the signal strenght is well.
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If flashing to a new ROM is not too much of a hassle, then try the new JVK stock Samsung ROM.
I have always been on Samsung ROMs and battery was ok for me. My last ROM was 2.2.1 JPY (Nordic), I could easily use it for a day (~12 hrs) with moderate use : ~40 SMSs couple of short (1~2min) calls, always ON 3G data with push gmail, and gtalk, few internet searches and about 30 mins of streaming or MP3 audio with WiFi/GPS/BT Off and screen brightness at 25% from min allowed.
Now using 2.3.3 JVK Samsung stock ROM. Still too early to say for sure, but seems like the battery life is as good (if not better) than JPY.
With screen off and idling (only receiving texts, emails and few missed calls) it once lasted a whole weekend (2 days). So 8 hrs with no use means there is something definitely wrong with your setup. Either its the ROM, a background app, low signal coverage or a defective battery.

Reality:
1 - From a clean install (no 3rd party apps), you should see no more than 1-2% / hour drain when idling (screen-off) but with push enabled and 3G or WiFi connected.
2 - If you're not getting that, do a wipe and re-install 3rd party apps one at a time and after each install let the phone idle for an hour and confirm < 1% drain. If you see a jump, uninstall the last app and try again.
3 - The screen eats battery like it's going out of style. You can expected 2-3 hours of screen time on auto-brightness and you average 50% brightness, and approx. 4 hours on min brightness.
4 - WiFi when enabled but not connected (meaning it's searching for WiFi) will suck down battery. Disable WiFi when not in range.
Other battery tips:
>> Calibrating the battery is overrated. After a complete ROM flash that wipes /system (and therefore the battery stats). Run the phone until it dies, then charge it till it's full. Then just use it like normal.
>> Disable haptic feedback and any keypress / touch sounds.
This is my experience with any 2.2 / 2.2.1 ROM I have tried, and I always use SpeedMod and the same (JL2) modem.

I just waked up and I'm on 40%!!! So during the night it drains about 50% with wifi off, GPS off, and 3g off... so can you guys give me a link where can i download modems from?
I had installed damnian kernel and ultimate rom with full wipe when I noticed that there is a lot of ROM problems with Darky 9.4, but there is no change...
I hope that is software problem not a hardware one. :-S
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Hi, I'm on 9.5 (speedmod kernel)and at first it was thirsty as hell. Look in spare parts app that comes with darky and maybe try setting the activity process manager to aggressive from normal. It might help.
Also have a look in settings/applications/ manage applications and running. Go through the list and try doing a force stop on any apps that aren't needed. Since I switched to aggressive mine uses 2% overnight with wifi on.
Hope that helps.
Ash
Sent from my ****ing awesome GT-I9000

I checked in the spare parts what is using my battery. So these are my results:
Totally since boot:
Running:66%
Screen on:16%
Phone on: 0,2%
Wifi on:59,9%
Wifi running:59,9%
I don't even use online apps, only my Gmail and yahoo account is syncronising and alert me if I get a new mail, and I have Facebook widget and that's all. I don't think these programs may cause that horribly battery life... what if I delete facebook?
Oh, and I don't really understand why the screen on is using a less percentage than the (system) running?
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The SGS battery is always going to be not so great. Try my setup, I usually get around 1.5/2 days usage. I'm on Darky 9.5 running the SpeedMod kernel (best for battery life IMO). I also leave the WIFI ON constantly (uses less battery than 3G/HDSPA/EDGE when indoors) and I use JuiceDefender, which stops programs syncing in the background until it decides necessary and turns off the data connection while the screen is off.

3G Settings
As what I posted on the previous member's complains on SGS battery drains,
Try this:
Method 1
Go to Settings> Wireless Settings > Mobile Settings > Network Mode
if the current setting is Auto GSM/WCDMA, then change it to your prefered network:
1) GSM Only = means WAP Internet / Call / SMS only ( You can't use video call or high speed packet access)
2) WCDMA Only = same as above but with video calls and HSPA
Method 2
Download an app from the market like 3G/2G On/Off by Curvefish.
Use 2G Mode only when Idle.
And let us know the results ^^
I am not pro regarding battery issues but having network scanning drains the phone. I tested it even on my Symbian smartphones and It saves battery. just trying to help

Thanks for the fast replies, I will try to install back the darky pack, but I need to flash the resurrection edition with Odin first, after that I have to flash 9.5 via cwm. In some topics I read that this method gives the best result of battery, but can somebody explain how to do that step by step, or can somebody paste a link here what I can go through. But unfortunately I don't have a calculator at this moment, I'm going to flash this weekend. Until that I'll try those setups, and I'll download that program.
Henry.
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Download" power tutor" from the market this will tell you whats eating your battery .
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I downloaded that program but it isn't showing any abnormal issue... only the screen takes the battery as usually, the CPU and the wifi if it is on. And that's all.
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it's all about the modem mate.
I've realised HUGE differences with different modems.
Current best ones IMO:
-JQ1 - 9.4 stock
-ZSJPE - reported good results
-ZSJPG - better than JPE for me currently.
here watch my video on how to flash a modem (very simple) + in the vid desc, i show you all the modem list (from XDA), and regions and what not:
+
look here:
http://www.darkyrom.com/community/i...n-for-my-maybe-also-your-galaxy-s-i9000.1630/

henrikusz said:
Thanks for the fast replies, I will try to install back the darky pack, but I need to flash the resurrection edition with Odin first, after that I have to flash 9.5 via cwm. In some topics I read that this method gives the best result of battery, but can somebody explain how to do that step by step, or can somebody paste a link here what I can go through. But unfortunately I don't have a calculator at this moment, I'm going to flash this weekend. Until that I'll try those setups, and I'll download that program.
Henry.
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Click to expand...
Click to collapse
yup and check my sig, for a step by step guide on how to do all the things you gotta do !

totallydubbed said:
yup and check my sig, for a step by step guide on how to do all the things you gotta do !
Click to expand...
Click to collapse
Thank you for your help, I'll try your settings immediately when I'll have a fine working calculator You mentioned before that you have a step by step guide how to install ressurection. Can you post it here? Oh, and why your battery results on that new modem and on darky 9.5?
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totallydubbed said:
it's all about the modem mate.
I've realised HUGE differences with different modems.
Current best ones IMO:
-JQ1 - 9.4 stock
-ZSJPE - reported good results
-ZSJPG - better than JPE for me currently.
here watch my video on how to flash a modem (very simple) + in the vid desc, i show you all the modem list (from XDA), and regions and what not:
+
look here:
http://www.darkyrom.com/community/i...n-for-my-maybe-also-your-galaxy-s-i9000.1630/
Click to expand...
Click to collapse
And will it work on my network? I mean I'm from Romania, will it run without network problems?
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Battery life on custom roms

Hey guys im keen to know your experiences with the various custom roms out there.. I have flashed villianrom today as my first custom along with various kernals but have had constant drain issues..
Looking at my battery awake stats it seems as if it never sleeps :-(
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JAG131990 said:
Hey guys im keen to know your experiences with the various custom roms out there.. I have flashed villianrom today as my first custom along with various kernals but have had constant drain issues..
Looking at my battery awake stats it seems as if it never sleeps :-(
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Click to expand...
Click to collapse
Screenshots showing battery usage and more importantly screen on time.

I don't have Villian ROM but from reading the comments on thst thread this is one of the best as regards battery drain so im amazed you experience high drain.
I run Cognition and am happy with this.

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You can see it just gettin eaten away screen off doesnt stop drain note the awake vs.screentime i have tried 4 kernals to no avail
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Put on watchdog and let it run in the back ground and see if it's any app or widget misbehaving.

Thanks trying now
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Just read in another thread that having motion sensor enabled causes this.
In my case ... Absolutely confirmed!
Very weird
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JAG131990 said:
Just read in another thread that having motion sensor enabled causes this.
In my case ... Absolutely confirmed!
Very weird
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Click to expand...
Click to collapse
That is very very weird!!

I was on Villain too,1.4 to be exact...drains as well,now on Litening 2.2,after resetting batt stats,best so far screen on time almost 5 hours, using mostly wifi..but with 3G,I get around 4hr 30mins...I usually leave my wifi on all the time at home,and switch on data only when I leave...

literom 2.2 doubled my battery life (no exageration) coming from stock rom. impressive.

Bus Driver said:
I was on Villain too,1.4 to be exact...drains as well,now on Litening 2.2,after resetting batt stats,best so far screen on time almost 5 hours, using mostly wifi..but with 3G,I get around 4hr 30mins...I usually leave my wifi on all the time at home,and switch on data only when I leave...
Click to expand...
Click to collapse
That sounds really poor performance..
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Some extended idling:
Cognition 1.13 with CF KG1 Kernel, Phone undervolted as in screenshot + GPU @ 750mV for both states.
Android OS still taking 1h15m CPU time in that screenshot, which, in my experience in this case is I *think* because of Skype running all the time there. Also Trillian connected to multiple services running constantly with Wifi.

I'm using Cognition 1.15 with modified 1.4 ninmphetamine kernel, very good battery life so far! (probably the best compared to villainrom and litening rom for me)

Having fixed my awake issue my battery life is reasonable but i expected betted with villainrom + nenphetamine custom + undervolt.
We need to guage some good comparisons id like to get an extended idle test dont know if i can leave my phone for that long. LOL
Btw How did you undervolt gpu?
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I would stay away from these newer kernels like Nephetamine until they actually mature. I alslo tried some other custom kernels and they kinda drained the battery way more. So I'm sticking to a plain kernel like CF for the moment. Also seems better to stick to the normal ondemand governor.
Undervolting GPU via Tegrak Ultimate, it's worth it imho, especially since I basically shaved off 25% voltage without any issues.

JAG131990 said:
That sounds really poor performance..
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Click to expand...
Click to collapse
How many hours are you getting if 4:30 and 5 hours screen display on time is poor performance? Please enlighten me...

I too flashed Villain rom (KF2) 2 days back and after flashing I get more battery drain compared to KF2 stock rom. android os is consuming 60% of battery.
BTW How can i see that graph thats shown above? is there any app for that

galaxyII said:
I too flashed Villain rom (KF2) 2 days back and after flashing I get more battery drain compared to KF2 stock rom. android os is consuming 60% of battery.
BTW How can i see that graph thats shown above? is there any app for that
Click to expand...
Click to collapse
Just tap on the grey part,where it states the hours and minutes on battery, the graph will be expanded and shown...

I will post screenshots i took this morning 9 hours standby wifi off, background data off, auto sync off, everything else on, stock rom KF3, no freezing of anything
the result?
1%!! loss over 8.5 hours

Please Help - Problems Again

Guys its me again.
Flashed Pre-Rooted DDJP6 and G3MOD 1.8 extreme kernel.
Charged for 2 hours, After that taken my phone out of charging suddenly battery started draining to 10% and phone switched off. i waited for a while and restarted phone battery was 80% and suddenly 10% again and phone switched off.
In the past i had been changing rom since last 4-5 days from Kyrillos to Indroid to XXPJF to DDJP6.
Kindly tell me what is the issue?? Many suggest to calibrate, when we calibrate we have to drain it in reality and recharge it to 100% but my phone if showing fake battery it drains instantly so how do we really drain it and re-charge??
I want to solve this problem asap. As my phone is almost unusable, i suspected SETCPU is causing this so i uninstalled it but still no use.
Please help i don't want to re-flash the rom and lose the data again

There is a high possibility that your battery is damaged since, as I understood, this problem persists in more than one roms.
sent from my CM7 nokia 3210

Switched it off for a 20-25 Minutes.
Switched on since last 2hours 3minutes and Mobile WIFI ROUTER AP in use since then.
still 22% Left. Dont understand , sometimes works very well and sometimes what a lag. I would let it drain and then charge fully.. Hope it works

im.prem said:
Guys its me again.
Flashed Pre-Rooted DDJP6 and G3MOD 1.8 extreme kernel.
Charged for 2 hours, After that taken my phone out of charging suddenly battery started draining to 10% and phone switched off. i waited for a while and restarted phone battery was 80% and suddenly 10% again and phone switched off.
In the past i had been changing rom since last 4-5 days from Kyrillos to Indroid to XXPJF to DDJP6.
Kindly tell me what is the issue?? Many suggest to calibrate, when we calibrate we have to drain it in reality and recharge it to 100% but my phone if showing fake battery it drains instantly so how do we really drain it and re-charge??
I want to solve this problem asap. As my phone is almost unusable, i suspected SETCPU is causing this so i uninstalled it but still no use.
Please help i don't want to re-flash the rom and lose the data again
Click to expand...
Click to collapse
first change the kernel to G3MOD v1.9 lite. be rooted. using root explorer delete batterystats.bin or install BatteryCallibration.apk charge upto 100% then let it drain. use battery monitor widget to check health and voltage of the battery. report it here. if health is good and voltage is >4150mV, u are good.

Actually its such an pain to again n again change the kernel i can't doo al data2sd and stuf again
btw i had cleared battery stats from the recovery so i don't have a stats.bin file when i tried batterycallibration it said the files is missing.
Sometimes battery works nicely and sometimes it lags usually at night what solution we have for this?

Battery was running fine at 100% on some tough work for an hour or so. Its rocking
So lets experiment , see the log below ->
SETCPU set to on demand max 1Ghz.
11:33 = Battery 100% , SETCPU setting on boot, wifi on , fb chat on , opera on.
11:41 - Battery at 74% FB CHAT off now installed operamini.. let me browse SETCPU still on
11:52 - Battery at 61% , Opera On , Setcpu modified to SAVE POWER.
11:54 - Battery still at 61% but phone is lagging more then it was before SETCPU. So i have uninstalled setcpu and kept my phone for charging. Lets see how much time it takes to fully charge..
I have reached the conclusion that SETCPU is the cause of problem

Even after SETCPU problem persists... drained it once and charged for about 1 hour , was showing BATTERY FULL... took it off charger switched on, was 100% kept in pocket in idle condition. 10-15 minutes passed by took it out and was down to 80 then to 50 in next 15-20 minutes without any work... What's gng on some1 help

Don't use extreme kernel .it damages ur battery. Try performance if u r looking for oc. And extreme is not a stable kernel.
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Which is the best kernel for Samsung Galaxy i5801 , in terms of performance,battery and App2Sd./data 2sd.

im.prem said:
Which is the best kernel for Samsung Galaxy i5801 , in terms of performance,battery and App2Sd./data 2sd.
Click to expand...
Click to collapse
Best kernel........????
Well there are 2 kernel which are just awesome ......G3mod 2.0 b3......and Fugumod kernel......
U can flash any one of them.....
I personally prefer Fugumod....but it's your choice coz both are fantastic....
Flash the new kernel and clear the battery stats....calliberate....and Setcpu doesn't harm your battery....

Even i am thinking about FUGUMOD.. does it include Recovery , app2sd ,data2sd and stuff.
If yes can you tell me which version exactly of FuGuMOD is the best for non lag stable superb experience ??
M using DDJP6 pre-rooted with superuser and i don't want to format and wipe stuff again.. lots of apps are dere and internal memory is still 800mb empty so will it b impacted if i flash a kernel?

im.prem said:
Even i am thinking about FUGUMOD.. does it include Recovery , app2sd ,data2sd and stuff.
If yes can you tell me which version exactly of FuGuMOD is the best for non lag stable superb experience ??
M using DDJP6 pre-rooted with superuser and i don't want to format and wipe stuff again.. lots of apps are dere and internal memory is still 800mb empty so will it b impacted if i flash a kernel?
Click to expand...
Click to collapse
Fugumod does include CWM and app2sd script....
Fugumod 1300Mhz version is the best........I will upload it in a while on the Dev section as it is missing.....
Edit : Done with the new thread thing......plz go to
http://forum.xda-developers.com/showthread.php?goto=newpost&t=1316029

Thanks sir,
But today i found that my back cover is not shutting properly so i took my battery out for a while its sort of swollen at few places and that's the reason why i can't put the cover on properly.. asked few of the friends they said its gonna blast anytime.
Can u tell me if it is true?

Which fugu mod version?? Beta 3?? It has 800mhz oc
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im.prem said:
Thanks sir,
But today i found that my back cover is not shutting properly so i took my battery out for a while its sort of swollen at few places and that's the reason why i can't put the cover on properly.. asked few of the friends they said its gonna blast anytime.
Can u tell me if it is true?
Click to expand...
Click to collapse
If the batttery gets swollen, it means it is near the end of its lifetime. If it is swollen so much that you cant put your back cover on, it is time to change your battery. i would recommend you not to use your phone with that battery and get a new one ASAP.

Just to clear things out, fugumod doesn't include CWM recovery nor does it include app2sd script. You have to do this manually unless you are using a custom ROM which has this preloaded such as kyrillos' ROM.

im.prem said:
Thanks sir,
But today i found that my back cover is not shutting properly so i took my battery out for a while its sort of swollen at few places and that's the reason why i can't put the cover on properly.. asked few of the friends they said its gonna blast anytime.
Can u tell me if it is true?
Click to expand...
Click to collapse
It is weird that it happened on this phone. I CAUTION you STRONGLY not to use that battery as it may damage your phone, leave aside blasting and all.
I would also recommend you to take more care of the phone as in, not left in charge for way too long, not overclocked constantly at very very high speeds continuously, and also to check where you keep you phone while charging (dont keep it on heat emitting stuffs like stabilizers, fan regulators etc) Change your battery of course.

Looks like the problem is You. It is neither the battery nor SetCPU. You skipped some basic stuffs, ignored the governor scaling of setCPU and now just pay some attention and if you do, you got yourself a solution!
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Nope its the battery only I checked it a mobile expert and saw the battery a bit swollen so its definitely a battery issue. I set the right profiles and governor while using setcpu. Maybe overcharging must have damaged my battery.
vivekmishra said:
Looks like the problem is You. It is neither the battery nor SetCPU. You skipped some basic stuffs, ignored the governor scaling of setCPU and now just pay some attention and if you do, you got yourself a solution!
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Click to expand...
Click to collapse
Sent from my Nexus S using XDA App

I am not using SETCPU VIVEK MISHRA then why do i set it properly? i have uninstalled it buddy. The problem is with you if you don't read properly,The battery is not functioning properly and has swollen.

LPY with extremely crap battery life?

Guys, I just updated my note to official LPY with root. The installation was smooth, also reinstalled all my apps.
It's the same set of apps I used and I had been careful in disabling the background sync.
Woke up at 9am fully charged, then completely dry at 5pm, not even intensive use.
Anyone else see yhe same problem?
Sent from my GT-N7000 using XDA

http://forum.xda-developers.com/showthread.php?t=1649041&page=7
join this discussion, you are not the only one^^

i am on official with cf root kernel and been on for 13 hours with 11% used. superb battery life for me

LPY with CF rooted kernel, 3h of voice call, wifi always on, auto mail check every hour (3 accounts), ebook/comics reading.
1 day and 9 hours on battery and still have 31% left. Not bad for me, round 2% per hour.

Surprisingly that airplane mode -> turn off phone -> pull battery -> turn on phone -> disable airplane mode trick worked for me. Also the pull battery part was essential for no idea what reason.
Now after almost 4 hours intensive use I still have 70%, kinda meets my expectations now.
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Carysyd said:
Surprisingly that airplane mode -> turn off phone -> pull battery -> turn on phone -> disable airplane mode trick worked for me. Also the pull battery part was essential for no idea what reason.
Now after almost 4 hours intensive use I still have 70%, kinda meets my expectations now.
Sent from my GT-N7000 using XDA
Click to expand...
Click to collapse
This is one thing everyone should try...the other thing is (as always): Use the ROM for a week or so! Load and reload it a few times (100% - ~5%)...the battery has to "settle" every and each time you flash a new rom.

mine seems fine. been sitting next to me for the last 4 hours and so far it has lost about 3%

I am also having a horrific battery life. It was much better with both stunner and cm9. I am trying to go back but not sure how to. Dont want to flash anything and brick my phone.
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In my hands, the airplane mode trick works, but toggling the energy saving menu restores the no-deep-sleep battery drain state.
Connecting and disconnecting from external power or car dock doesn't seem to precipitate the drain, instead.
Please try yourself to confirm.... In this first ics firmware, knowing what to do to make it work at best is of great importance.
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lpy for me not rooted this time if i need root i use the temp one the battery is fantastic

It's not only the crappy battery life.. try opening a folder (Nova Launcher, Apex, Trebuchet - doesn't matter) that contains more than 8 icons... LAGGY AS HELL. kinda miss the chinese leak

Try this one - http://forum.xda-developers.com/showpost.php?p=26088090&postcount=86

Im actually having the same issue with battery life. Was using miui and other ics roms with great battery life.
Im assuming its a rouge app or service. But i had 15% drain overnight from 1am-730am and thats not normal when device is not being used.
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intruda119 said:
But i had 15% drain overnight from 1am-730am and thats not normal when device is not being used.
Click to expand...
Click to collapse
If i were you I'd install Cpu Spy from the market and watch if your note goes into deep sleep atall...

Thread Closed​
We only need one thread on this subject.​

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
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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
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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
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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!

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