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.

battery?

im running the stable cm7 release and my battery life is terrible. i followed the guide on the forums here on fixing your battery life, charging to 100% pull battery put back in instal battery fix etc and overnight (short 5 hour night btw) i lost over 25% of my battery life, doing nothing ! wifi off data was on but i only recieved one or two emails all night. is this normal for cm7?
i read about how people are getting 20+ hours battery life while using their phone, if i leave my charger at home and go to work my phone is DEAD halfway through and all i use it for is the occasional phone call mabye 5-10 texts throughout the day and an email or two... how can i fix this?

I read somewhere that if you flash another ROM with battery not fully charged, it messes up calibration and you have to calibrate again. I am still with stock Blur just because I read so many issues with so many people about batteries
I hope you can get it figured out.

anybody?
is anybody else having battery life issues with cm7? if not did you do something to fix it? i have no idea what to do, the phone pretty much has to be tethered to a charger or it gets drained ridiculously fast. If i hang out with a few friends and use my phone during it i literally have to stop using it after around an hour or so because the battery's about to die.
Is there a certain rom with exceptional battery life that i can try to see if mabye its a hardware related issue? i seem to remember having horrible battery life for the day? or so that i was running stock ATT gingerbread.

I use Aura 1.2.2.2 (debloat) and get average battery life. Comparable to what I got before I installed third party ROM. If you want to try that one and see if its just CM then give it a go.
I had a battery problem after flashing to CM with a previous phone (OG Droid) but it was because I flashed while I had the phone plugged into the charger. It took a while to get it back to normal.
I doubt its CM. I dont know if its something draining your battery in the background or if its a result of weird calibration due to the flash.

my battery life has never been hte greatest but recently i got it working really well
I use the latest weekly build of CM7 and here is what i did
upon fresh install:
wipe battery stats
THEN:
kill battery
charge as far as it will go
clear battery stats (use battery calibration app)
take out battery
wait to reboot(missing battery)
put it back in
let it charge for 2hrs
reboot and unplug
kill the battery
charge to 100% while off (no interuptions)
Enjoy!
i have found that the more cycles my battery goes through 100-0-100
the better it gets
these steps almost tripled my battery life (along with Weekly 3)

there is a bug some people report with CM7 about the suspend process. (i have it, you can search "suspend" in the CM7 thread and see others are as well) load up the app betterbatterystats (there is a thread on xda that has the apk) and see if you have that bug.

I'm on nightly 20 having good battery life
Sent from my MB860 using xda premium

I'm a victim of the suspend process bug
had to flash something else, using ALIEN for now and battery is pretty good
Sent from my MB860 using XDA App

i installed betterybatterystats as you guys recommended and im not entirely sure how to read it but the suspend process shows at the top of the list so i assume thats the process which is eating up my battery? Is there a fix for this? i do like cm7 but if its the rom which is causing my battery life issues ill have to wave goodbye. Does this suspend process but happen on the weekly / nightly builds as well?

I was having horrible battery life as well. I froze some apps that I downloaded from the market and that helped a little bit but what gave me 20+ hours of battery life is the new UK orange Radio that has recently been released. I wanted to flash it since I am using an Orange UK phone and see if it improves my wifi connection, etc....
Reddy flashing a radio appropriate to your device and see if it helps.
Sent from my MB860 using XDA App

I had it on stable, and am on weekly 3 right now. I'm probably going to switch back to a blur rom soon..
Sent from my MB860 using XDA App

My battery blows with CM7. My phone has the suspend bug and nothing fixes it. I tried a fastboot wipe and clean install of the latest stable as well as nightly #20. I've tried several kernels, I'm currently running a screen off profile of 216-216 on the 1.0ghz kernel and I'm undervolted to the max just to make it thru the day.
I'm getting the nexus prime or the iPhone 5 next... which ever is released first.
Sent from my MB860 using XDA Premium App

Extreme Battery Level Drop After Reboot, Increases During Use

The topic pretty much explains it. I've been using different modified stock roms and now I'm on the latest nightly of CM7, and I keep having this issue. After a reboot at around 50%, the battery drops to 15%. The weird part is that while I continue to use the phone, it slowly rises back up to sometimes 30% and then starts going back down. I've always cleared battery stats when flashing and calibrated (which I believe is unnecessary), but I don't know if this is a problem with the battery, the phone, or if anyone else is having the same issue?
Attached is a screenshot of battery usage. You can see I never actually charged the phone.
Sent from my GT-I9100 using Tapatalk

I have exactly the same issue.
Sent from HydrOG3N MOD S2.
Technology Evolves, Android Evolves.
HydrOG3N is THE Revolution.

[email protected] looks like a bow and arrow..
anyway guys, you need to recalibrate your battery, its not being read accuracy.
download BatteryCalibration from the market, charge your phone till 100% (not just 100% but when it beeps, that its truely at 100%), then use BatteryCalibration to calibrate your battery, and then drain it to 0.. (crank full brightness, turn on LED flashlight, blast internet radio, whatever makes it drain faster to get this part overwith), then recharge it to max.
so;
charge to full 100%
while still plugged in, run BatteryCalibration
discharge to 0%
recharge to 100%
battery successfully calibrated, you will now have an accurate reading

I had exactly the same issue on 3 different custom roms....finally resolved by going bck to stock rom
mgxplyr said:
The topic pretty much explains it. I've been using different modified stock roms and now I'm on the latest nightly of CM7, and I keep having this issue. After a reboot at around 50%, the battery drops to 15%. The weird part is that while I continue to use the phone, it slowly rises back up to sometimes 30% and then starts going back down. I've always cleared battery stats when flashing and calibrated (which I believe is unnecessary), but I don't know if this is a problem with the battery, the phone, or if anyone else is having the same issue?
Attached is a screenshot of battery usage. You can see I never actually charged the phone.
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Sent from my GT-I9100 using XDA App

soraxd said:
[email protected] looks like a bow and arrow..
anyway guys, you need to recalibrate your battery, its not being read accuracy.
download BatteryCalibration from the market, charge your phone till 100% (not just 100% but when it beeps, that its truely at 100%), then use BatteryCalibration to calibrate your battery, and then drain it to 0.. (crank full brightness, turn on LED flashlight, blast internet radio, whatever makes it drain faster to get this part overwith), then recharge it to max.
so;
charge to full 100%
while still plugged in, run BatteryCalibration
discharge to 0%
recharge to 100%
battery successfully calibrated, you will now have an accurate reading
Click to expand...
Click to collapse
I'll try this one more time and report back.

mgxplyr said:
I'll try this one more time and report back.
Click to expand...
Click to collapse
Sorry guys, but your method with BatteryCalibration is useless ....
If you wanna do a correct calibration, look at here http://forum.xda-developers.com/showthread.php?t=1312273
Cheers

Put back the battery on the right side.
8. Turn on the phone.
9. Pray the Battery god
And that post is just nonsense based on the old battery bump method .
jje

mgxplyr said:
The topic pretty much explains it. I've been using different modified stock roms and now I'm on the latest nightly of CM7, and I keep having this issue. After a reboot at around 50%, the battery drops to 15%. The weird part is that while I continue to use the phone, it slowly rises back up to sometimes 30% and then starts going back down. I've always cleared battery stats when flashing and calibrated (which I believe is unnecessary), but I don't know if this is a problem with the battery, the phone, or if anyone else is having the same issue?
Attached is a screenshot of battery usage. You can see I never actually charged the phone.
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
i have the same problem when i use custom roms.
i have been using pure stock rom by wannam but rooted for the past week with 12 hours aday syncing and surfing the net and plenty of voice calls via viber and my battery lasts at least 16 to 18 hours.
right now i am using odexed KL3 Kernel KL2Base KL1modem 2.3.6 and it is absolutely amazing interms of battery life and performance.
http://forum.xda-developers.com/showthread.php?t=1292825
http://www.multiupload.com/06I066U6S8
i have gotten rid of all samsung craps through titanium backup. i only have samsung apps application cuz of some paid apps which are for free such as tapatalk and many more on samsung app store.
my free memory is 97mb (original rom free memory is only 27mb)
i dont use any task killers i use 1Tapcleaner pro.

JJEgan said:
Put back the battery on the right side.
8. Turn on the phone.
9. Pray the Battery god
And that post is just nonsense based on the old battery bump method .
jje
Click to expand...
Click to collapse
Maybe, you wanna share a better way to all of us ?

Are you using speeded kernel. If you are then it is because logging and debugging is off.
Sent from my GT-I9100

Completely stock phone never rooted.
Same problem.
Just sayin'
Sent from my GT-I9100 using XDA App

Got the same here, very strange, on CM7
Sent from my GT-I9100 using XDA App

This thing only happens on CM7 for me. It had 40% before reboot and like 15% after. However mine only increased to about 17% then started dropping as usual. This never happened on any stock ROMs I've tried(stock, not themed/modded stock).
Sent from my GT-I9100 using xda premium

did you
did you rsolve the problem ? how? I have the same problem and I tried more stock roms ... I don't know what tot do ....

Its nothing to do with calibration etc, its just how the fuel gauge chip works, it learns and more accurately reports usage over time. For example, if you reboot and (I can't remember the actual voltages for the S2) you have 1200mV, the chip goes, "ah, that is 15% battery." Then as you use it more, it relearns its settings and goes "aaah, my mistake 1200mV is really 30% battery. I'll display that instead."
Its been covered frequently that "calibrating" the battery of the S2 in any way but actually using it, is next to useless.
Sent from my GT-I9100 using xda app-developers app
---------- Post added at 11:05 AM ---------- Previous post was at 11:03 AM ----------
Also just noticed this thread is a year old, but hopefully it will help the poster above.
Sent from my GT-I9100 using xda app-developers app

I'm having this problem too, what did you all do besides get new phones?

Got the same here, after update stock jellybean

Had this problem, when my S2 was half a year old.
I got the original Extended Battery and that solved this issue completely.
The replacement Battery has held up since 2013

soraxd said:
[email protected] looks like a bow and arrow..
anyway guys, you need to recalibrate your battery, its not being read accuracy.
download BatteryCalibration from the market, charge your phone till 100% (not just 100% but when it beeps, that its truely at 100%), then use BatteryCalibration to calibrate your battery, and then drain it to 0.. (crank full brightness, turn on LED flashlight, blast internet radio, whatever makes it drain faster to get this part overwith), then recharge it to max.
so;
charge to full 100%
while still plugged in, run BatteryCalibration
discharge to 0%
recharge to 100%
battery successfully calibrated, you will now have an accurate reading
Click to expand...
Click to collapse
did it but it still there... phone flicks and goes off at or below 40% wont turn on again:crying:

same here and I got the 2000 mAh samsung battery back in the days but now it happens with both of them also when my phone shuts off the screen brightness start flashing weirdly

Battery life decreasing...

Ok, so I've had my SGN for little under a month for the first few weeks I had it I was getting great battery life, almost 6 hours screen time full day of battery etc.. Then I rooted it using one click root because I wanted some more access, since then battery life has seemingly been slowly getting worse. I have tried changing back to stock roms and custom roms, I've fully discharged the battery and charged while it is off a number of times but I'm down to 3 hours screen time and can't get a full day out off it anymore.
Is this something to do with the way I rooted, what can I do test and try and get back my battery life, this is the main reason I got this phone..
It's hard to say if it was the first update I installed/rooting or something wrong with the way I'm charging but it's certainly decreased even on a stock ROM without installing anything..
Anybody else encountered this?

Check battery stats and show us a print screen
Sent from my GT-N7000 using XDA App

Going to try latest firmware and just bought Odin mobile.. Hoping that'll fix it.
Won't let me add a picture says I don't have permission.. Sigh.
Sent from my GT-N7000 using xda premium

Goonish said:
Ok, so I've had my SGN for little under a month for the first few weeks I had it I was getting great battery life, almost 6 hours screen time full day of battery etc.. Then I rooted it using one click root because I wanted some more access, since then battery life has seemingly been slowly getting worse. I have tried changing back to stock roms and custom roms, I've fully discharged the battery and charged while it is off a number of times but I'm down to 3 hours screen time and can't get a full day out off it anymore.
Is this something to do with the way I rooted, what can I do test and try and get back my battery life, this is the main reason I got this phone..
It's hard to say if it was the first update I installed/rooting or something wrong with the way I'm charging but it's certainly decreased even on a stock ROM without installing anything..
Anybody else encountered this?
Click to expand...
Click to collapse
I have the same "feeling" with my Note. I have installed System Panel to monitor usage but I can't find anything specific that seems to be sucking the power. But it certainly "feels" like my battery is draining faster than before.

It's probably as the phone gets older, you install more & more Apps. Some of these are probably working in the background sucking your battery.
Sent from my GT-N7000 using Tapatalk

Even with a clean stock rom, it doesn't seem as good as it was without root or any updates.. Wish I remembered what the phone came loaded with, I'd give that a go..

xamaba said:
I have the same "feeling" with my Note. I have installed System Panel to monitor usage but I can't find anything specific that seems to be sucking the power. But it certainly "feels" like my battery is draining faster than before.
Click to expand...
Click to collapse
Try Rocket Rom v17 or latest XXLA1 firmware and your battery life will come back even better than before, just me

Same "feeling" here! I will try LA1 firmware....

So I'm currently sitting on 4.30 hours screen time, 15 hours uptime with 20% battery remaining.
Running la1 firmware and la3 modem, been using stock browser. Taking lots of photos with flash too, so I think this combo has rectified my issues but I know there's more potential as this is roughly the same stats I got on my dhd, although that was underclocked and tweaked to the clappers.
Faith is resetored in my device, hopefully it improves.

[Help] Battery problem

My battery is draining too fast after upgrading to android 4.3. Even only on 2g there is 1% decrease in battery almost after every 3 minutes. But with screen off it will remain almost at 99% after even 12 hours or more. But when I start using the phone for something like even navigating through the settings the battery drops 1% every 3 minutes or even less. My handset is about a month old. I am from India and running the ML4 android 4.3 recently released by Samsung. There is no wakelock when the screen is asleep. The phone screen consumes between 60 to 90% of the battery or more. I factory reset it thrice since the update but with no effect. I am running the 4.3 update for about 3 weeks now. I also installed Greenify, battery doctor, juice defender etc to save battery but there is no improvement. I installed the same apps that I installed on the 4.1.2 firmware but the battery is draining quite faster in the 4.3 version. I also freeze almost all bloatware using Titanium backup and even uninstalled some like Google Books etc. but no use. I don't use wifi or wifi hotspot at all. I rarely use bluetooth. GPS, location, etc off. I even freeze Google Play store, Google play services and Google services framework. No multi window, no smart stay, no s voice, no ripple effect, no live wallpaper, etc everything off but still the same. If there is anyone facing this issue and has already found the solution, please help me out.
Sent from my GT-I9300 using xda premium

I forgot to mention that screen brightness is at minimum or minimum-auto.
Sent from my GT-I9300 using xda premium

Do a clean install with Odin?
Also try, http://www.androidbatterylife.com/?m=1
Swyped from Tapatalk Pro

I remember my 4.1.2 had the same battery consumption and with 4.3 it remained unchanged(if not better). I think you just gonna get used to that .
Use your phone and stop thinking and worrying about battery. Though I charge my phone twice a day because I use wi-fi a lot,I still don't worry or something.

I have this habit of doing clean install. No mistake with that.
Sent from my GT-I9300 using xda premium

thadoukuki said:
I have this habit of doing clean install. No mistake with that.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
1% every three minute. I think its normal.
Charge to 100% and use normally till 5% and then post the screenshot of battery stats here.

Iqbal Ansari said:
1% every three minute. I think its normal.
Charge to 100% and use normally till 5% and then post the screenshot of battery stats here.
Click to expand...
Click to collapse
With normal usage it is more than 10 hours at 77%. May be it's normal but it last more than that on 4.1.2

thadoukuki said:
With normal usage it is more than 10 hours at 77%. May be it's normal but it last more than that on 4.1.2
Click to expand...
Click to collapse
It is normal battery drain.
Battery on 4.3 is almost same as 4.1. What else do you expect its a quad core phone.

Iqbal Ansari said:
It is normal battery drain.
Battery on 4.3 is almost same as 4.1. What else do you expect its a quad core phone.
Click to expand...
Click to collapse
If I browse the internet non-stop from 100% batttery then, after around 3 hours the battery is 20-30%. Is this also normal.

Maybe your battery is damaged ...
otherwise you can check for wakelocks using Better Battery Stats:
http://forum.xda-developers.com/showthread.php?t=1179809
Good luck

benzai said:
Maybe your battery is damaged ...
otherwise you can check for wakelocks using Better Battery Stats:
http://forum.xda-developers.com/showthread.php?t=1179809
Good luck
Click to expand...
Click to collapse
This is funny! You mean to say that the upgrade to android 4.3 has damaged my battery? The battery is not even 1 month old as I mentioned in the first post. The battery is very good on android 4.1.2...... As I mentioned in the first post, there is no battery drain when the screen is off. Even after 24 hours the battery is 99% from 100% with screen off. Why should I checked for wakelocks when the battery is fine on screen off? I did checked it to be sure but no wakelocks. The battery problem is when I use the phone, the battery is draining abnormally when the phone is used. Anyway thanks for your reply.

thadoukuki said:
This is funny! You mean to say that the upgrade to android 4.3 has damaged my battery? The battery is not even 1 month old as I mentioned in the first post. The battery is very good on android 4.1.2...... As I mentioned in the first post, there is no battery drain when the screen is off. Even after 24 hours the battery is 99% from 100% with screen off. Why should I checked for wakelocks when the battery is fine on screen off? I did checked it to be sure but no wakelocks. The battery problem is when I use the phone, the battery is draining abnormally when the phone is used.
Click to expand...
Click to collapse
Using BetterBatteryStats will nevertheless help you to find out which process is consuming your battery…

Yes, 4.3 upgrade downgraded my battery life about 20% when I am using my phone. On idle it is better about 10-20% also compared with 4.1.2. It is useless to do factory resets or other nonsense. Just it is as is.
Sent from my GT-I9300 using Tapatalk

ramas123 said:
Yes, 4.3 upgrade downgraded my battery life about 20% when I am using my phone. On idle it is better about 10-20% also compared with 4.1.2. It is useless to do factory resets or other nonsense. Just it is as is.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
You are right! There is no use resetting the phone. It won't improve your battery's performance. I think it's a bug of android 4.3.
Sent from my GT-I9300 using xda premium

I think you need to try someone else's battery in your phone to see if you have the same problem then

try this: http://forum.xda-developers.com/showthread.php?p=50441083#post50441083

AssassinGEO said:
I remember my 4.1.2 had the same battery consumption and with 4.3 it remained unchanged(if not better). I think you just gonna get used to that .
Use your phone and stop thinking and worrying about battery. Though I charge my phone twice a day because I use wi-fi a lot,I still don't worry or something.
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Even with wifi on you can use the phone the all day

thadoukuki said:
My battery is draining too fast after upgrading to android 4.3. Even only on 2g there is 1% decrease in battery almost after every 3 minutes. But with screen off it will remain almost at 99% after even 12 hours or more. But when I start using the phone for something like even navigating through the settings the battery drops 1% every 3 minutes or even less. My handset is about a month old. I am from India and running the ML4 android 4.3 recently released by Samsung. There is no wakelock when the screen is asleep. The phone screen consumes between 60 to 90% of the battery or more. I factory reset it thrice since the update but with no effect. I am running the 4.3 update for about 3 weeks now. I also installed Greenify, battery doctor, juice defender etc to save battery but there is no improvement. I installed the same apps that I installed on the 4.1.2 firmware but the battery is draining quite faster in the 4.3 version. I also freeze almost all bloatware using Titanium backup and even uninstalled some like Google Books etc. but no use. I don't use wifi or wifi hotspot at all. I rarely use bluetooth. GPS, location, etc off. I even freeze Google Play store, Google play services and Google services framework. No multi window, no smart stay, no s voice, no ripple effect, no live wallpaper, etc everything off but still the same. If there is anyone facing this issue and has already found the solution, please help me out.
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Okey So Firstly I rule Out Few Assumptions Made By Some Members(No Offense):
1) As thadoukuki said battery Drains only while using the phone and not wen its idle that means its not a wakelock for sure.
2)Secondly as the handset n battery ofcourse, are just a month old i dont even assume it to be damaged(Trust Sammy)
3)Thirdly 1% / 3Mins is quite normal on extensive Usage but as you say its just while navigating around settings etc. den i assume its a bit high.
4) Now betterbatterystats is good to identify what consumes your battery but ive never been a fan of that actually.
SO according to me try to do some trial n error work .
Instead of Freezing apps through TB u can use Greenify Donate to greenify system apps and user apps as well. It Does same job as TB freeze but without that extra hassle.
Secondly Choose a kernel that you think is battery friendly for you like the one which gives you peace of mind(Oh Yeah Battery's Draining Slow!!)
for me i'd go for Boeffla or Googymax
Choose a battery friendly Governer for ur CPU(For me Boeffla kernel with Archi_ultra_power_save governer gives great results)
Check if CPU Touch boost is Enabled in Kernel Settings coz Touch Boost gave me good performance and responsiveness but even i had observed that battery used to drain faster with it.
Battery friendly Rom with few Tweaks by xda members is always better for me over Stock( ArchiDroid Is the Rom ive ever Used){Personal Opinion}
Ppl Say undervolting helps .....hmm maybe ive never Done it but as you are very cautious about battery you may try it (on your own Risk)
Lets see if that Helps
And Lastly i never Observed much Change in Battery drain pattern wen Coming from 4.1.2 to 4.3 so thats not really true.

Turn off location services
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Read d first post !!
cais232 said:
Turn off location services
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AS already stated in the first post location is OFF . So he's Already taken care of it !!!