Develop Bugs

Battery Drain

Hi All,
When i look into (almost) all roms i see the problem with the battery drain problem.
To bad i do not have the knowledge to find out what to do.
But i think that some smart developers work together to find a solution about this battery drain problem.
So that's why i start this thread so we can discuss this

raiz said:
AdamG's Official Froyo HTC Sense might hold the key to this since it seems to give about 2 days battery performance with the original battery unlike any other rom.
Click to expand...
Click to collapse
It would be great if he could share the knowledge
I am using LeeDroid 1.4c and I too experience battery drain issues...

Someone tried this one http://forum.xda-developers.com/showpost.php?p=7170484&postcount=173 ?

There's a really good battery life on the OD 2.3 ROM Love it!
/CK
Sent from my HTC Desire using XDA App

Café King said:
There's a really good battery life on the OD 2.3 ROM Love it!
/CK
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
Thanks, but i don't like the interface.. want have the sense feeling

Drain
Tested a lot of roms with froyo and sense. The roms based on 2.06 base are draining relative more then the roms based on 2.04.
Above is not scientificly tested.

Charge to 100% , go to recovery , advanced , wipe battery stats. Enjoy greater baterry life
Sent from my HTC Desire using Tapatalk

I had NONE battery drain problems on any of ROMS 2.1 or 2.2, and i did try alot of them.
Maybe theres something wrong with your phone itself (battery).
But definetly try wipe battery stats in recovery.

Since 08:00 morning had WiFi on.. network Data of... and now 12:02 battery is now 90%. DId have play with config the Tasker Tool (Great app).
Tomorrow i will do the test again but then with Network Data on and WiFi off.

raiz said:
AdamG's Official Froyo HTC Sense might hold the key to this since it seems to give about 2 days battery performance with the original battery unlike any other rom.
Click to expand...
Click to collapse
Yup, that ROM has the best battery life by far...
Sent from my HTC Desire using XDA App

people are having mixed results on the battery perfermance of adam's sensefroyo rom. i experienced a poorer battery life compared to eclair (i used Amer_v4 and the battery was excellent) but can still manage to last a full day usually. haven't tried out the froyo roms though.
ryanrich said:
Yup, that ROM has the best battery life by far...
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
btw aren't you're using opendesire?

I've changed about 8 roms, mostly used 4, but can't say there was a huge difference between them. 2 days of normal use, 1 day of heavy use.
Possibly shadowfrost and DeFrost 2.4 had the best battery life and I had the fastest kernel installed...
I would think that - some isolated problem aside - mostly it has to do with some applications/settings

Charge to 100% , go to recovery , advanced , wipe battery stats. Enjoy greater baterry life
Sent from my HTC Desire using Tapatalk
Click to expand...
Click to collapse
Any ideea why?
Sent from my HTC Desire using XDA App

andycted said:
I've changed about 8 roms, mostly used 4, but can't say there was a huge difference between them. 2 days of normal use, 1 day of heavy use.
Possibly shadowfrost and DeFrost 2.4 had the best battery life and I had the fastest kernel installed...
I would think that - some isolated problem aside - mostly it has to do with some applications/settings
Click to expand...
Click to collapse
sometimes my E-Mail application is consuming most of the cpu. It keeps the cpu at max frequency. Even if i try to end the taks with the app "system panel" it wont solve the problem. I have to go into the app and make a manual sync.
i also found out that automatic brightness is using loads of battery. since i set it to static I'm experiencing almost 2 days of battery life with moderate use.
I'm on Defrost 2.1

Hello again everybody,
Yesterday whole day online by WiFi. Using phone couple of hours and my Maildroid Email was active without prevent sleep mode.
Battery was empty after almost 17hours. (+/- 5% every hour)
Today. Wifi on. Maildroid now with prevent sleep mode ON.
Have unplugged the phone 4 hours ago and battery is at 75%
Tomorrow i will test this with Network Data on.. and without prevent sleep mode of Maildroid. And day after with prevent sleep mode.
I know for sure.. the battery will drain very vast for both situations...
BUT Ill let you know
EDIT 26-07-2010: Battery was empty tonight on 1:30.
NOW I do the whole test again but now with network data on and WiFi off

Ive had the opportunity to own a Nexus One at launch and a HTC Desire...I always found Android OS to be the issue whenever i had excessive battery drain.
Ive found my issue to center around the OS 'calling home to sync' (whether 'sync' option is selected or not)Initially, the problem was resolved by deleting all my sync funtions...but that was obviously not practical........ so now I keep my GSM data connection running and I get about 2.5 days on Open Desire (non HTC Sense).
AdamG seems like the guy who knows what hes talking about - His changelogs for OpenDesire actually hint at him having done some battery drain tweaking...whatever he did, he has definitely fixed it
Cheers
Oz

I've tried so many ROMS in the past few weeks to try to solve battery drain issues. On some, I could almost see the percentage dropping as I looked at the home screen! I even bought a new battery thinking I might have killed the original.
OpenDesire does seem to be the way forward re this problem if you're intent on the HAVS kernel. OD2.3a gave me almost two days of varied use.
However, and I know this is going backwards, an earlier DeFrost - the 2.1, is brilliant for me. I'm now at two days since unplug and still at an unbelievable 45% - yes, I know, I thought it was broke as well! For now, I'm sticking with this one. Everything I want works and I don't have to carry a spare battery in my pocket when I go out.
Hope this is of some help. Don't despair. You will find the one for you.
Cheers

I don't get why everyone says they have such a issue with battery.
I get about 2.5-4 days of use with DeFrost 2.2 and have done about so since DeFrost 0.9. I've had it up around five days once.
How are you actually using your phones?
It's not a "Froyo" issue.

sckc23 said:
people are having mixed results on the battery perfermance of adam's sensefroyo rom. i experienced a poorer battery life compared to eclair (i used Amer_v4 and the battery was excellent) but can still manage to last a full day usually. haven't tried out the froyo roms though.
btw aren't you're using opendesire?
Click to expand...
Click to collapse
Switched back because I had terrible battery life on OD 2.3a and couldn't see why...
Sent from my HTC Desire using XDA App

Daelyn said:
I don't get why everyone says they have such a issue with battery.
I get about 2.5-4 days of use with DeFrost 2.2 and have done about so since DeFrost 0.9. I've had it up around five days once.
How are you actually using your phones?
It's not a "Froyo" issue.
Click to expand...
Click to collapse
It's very interesting to me how are YOU using your phone?
Come on, 4 days ? When i talk about 30m to 1h each day and using a phone little bit, i have at least 30-40% down.
u mean u only drain about 25% each day? are u actually using your phone ? wifi, calls, 3g ? or u have a expensive pocket toy just to show to your friends ?

[Q] Battery Drain Since Moving To Stable?

Hey there,
I was using the CM7 nightlies for a while, and the battery life was great. However, it seems like ever since I flashed CM7 Stable my battery life has went down. The part I'm finding odd is that it didn't even last 12 hours today and I barely used the phone (especially in the first 8 hours since I was at work). As well, the battery usage shows Cell Standby and Phone Idle combined using over 85% power, which I've never seen before. I want to say it might be some of my apps, but they're the same ones I've been using. In case it makes a difference, here's my setup:
LauncherPro
Trillian
Clock/Weather widget from Fancy Widget
SetCPU on "conservative" setting
Gmail, Facebook, Messages widgets from LauncherPro
Power Widget
Score Mobile widget
None of my sync settings are really frequent, most are hourly refresh, another is 30 minutes. And since I haven't had this problem before CM7 stable I'm still thinking maybe it's something with the ROM.
What I'd like to know is if I should try to calibrate the battery first. And if that's the case, what is the best method to calibrate the battery so the ROM is reporting it accurately.
Thanks in advance

Anyone have any ideas?

I have been getting the BEST BATTERY LIFE EVER since moving to the latest radio.
Sent from my G2 running Cyanogenmod 7.

wipe the battery stats... look at the forum how to.

ibemad1 said:
I have been getting the BEST BATTERY LIFE EVER since moving to the latest radio.
Sent from my G2 running Cyanogenmod 7.
Click to expand...
Click to collapse
Which radio is that?

Always flash at 100%. Then use your phone at least 4 days, as in 2 complete cycles of using until you have to charge it again. Do not change your radio unless you are absolutely confident about the things you are going to do. Chances are you have a custom rom which does not match the radio you are trying to flash, resulting in a expensive ¨presse papier`.

HLeenders said:
Always flash at 100%. Then use your phone at least 4 days, as in 2 complete cycles of using until you have to charge it again. Do not change your radio unless you are absolutely confident about the things you are going to do. Chances are you have a custom rom which does not match the radio you are trying to flash, resulting in a expensive ¨presse papier`.
Click to expand...
Click to collapse
I appreciate the caution, but the current radio I have is the version that Virtuous recommended to update to. Is there a more "Cyanogen-specific" radio?

Bloodlvst said:
I appreciate the caution, but the current radio I have is the version that Virtuous recommended to update to. Is there a more "Cyanogen-specific" radio?
Click to expand...
Click to collapse
I got the stock radio and it's working perfectly. 28hours of uptime with ease (and everything on, incl pushmail). No GPS issues, good reception and no static in the background.

when you say use your phone for 4 days (2 completely cycles) until you have to charge it agian... what do you mean exactly? i need to charge mine after like 8 hours...
HLeenders said:
Always flash at 100%. Then use your phone at least 4 days, as in 2 complete cycles of using until you have to charge it again. Do not change your radio unless you are absolutely confident about the things you are going to do. Chances are you have a custom rom which does not match the radio you are trying to flash, resulting in a expensive ¨presse papier`.
Click to expand...
Click to collapse

polarbearmc said:
when you say use your phone for 4 days (2 completely cycles) until you have to charge it agian... what do you mean exactly? i need to charge mine after like 8 hours...
Click to expand...
Click to collapse
What I mean is that you should, after you flashed a new rom, drain the battery at least two times and charge it again fully. Or charge at 100%, flash and wipe battery stats after flashing to speed this up a little. Point is, there is no definite daily use. You could (usually not) notice a very small difference in batterydrain after flashing, but be sure it's not because of Bluetooth, Wifi, GPS or some other thing which is accidently turn on. That's why I said to use the phone for 4 days, and 2 complete cycles. I do not use my phone as heavy as you seem to do. Furthermore, I take care not to turn Wifi, Bluetooth or GPS on when I do not need those functions.

[Q] RCMix S v2.0 Evolutionary Sense battery problem

Hi,
due to my low post count I can't post in the actual thread about that ROM hence this topic.
I have a little problem with battery in my Desire Bravo. On my previous ROM DeFrost 6.1a the battery was holding for ~52h (low usage). After flashing with RCMix S v2.0 it dropped terribly to ~7h (nearly to none usage). This is a huuuuuuge difference as you may notice.
The phone is running exactly the same apps as previously, same settings (Wifi, GPS etc. I mean the most battery related). The only things I've also done prior to flashing the ROM was:
S-OFF
flashed with HBOOT CM7 r2
that's all.
Did anyone experience the same problem? Or does anyone know how to solve it? To anticipate the question: I haven't wipe battery stats after flashing.
HTC Desire A8181
32.54.00.32U_5.14.05.17
CM7 r2 HBOOT

Well there are a few things that have changed. You have gone from Froyo to Gingerbread. You have fine from AOSP to Sense. RCMix S has bits of Sense 3 thrown in too. So really, it takes a lot to run. I have used that rom but you really have to maximize the battery yourself instead of relying on the rom to do all the work.
Swyped...

Meaple said:
Well there are a few things that have changed. You have gone from Froyo to Gingerbread. You have fine from AOSP to Sense. RCMix S has bits of Sense 3 thrown in too. So really, it takes a lot to run. I have used that rom but you really have to maximize the battery yourself instead of relying on the rom to do all the work.
Swyped...
Click to expand...
Click to collapse
exactly. more graphics means more battery consumption.

Mistiqe said:
Hi,
due to my low post count I can't post in the actual thread about that ROM hence this topic.
I have a little problem with battery in my Desire Bravo. On my previous ROM DeFrost 6.1a the battery was holding for ~52h (low usage). After flashing with RCMix S v2.0 it dropped terribly to ~7h (nearly to none usage). This is a huuuuuuge difference as you may notice.
The phone is running exactly the same apps as previously, same settings (Wifi, GPS etc. I mean the most battery related). The only things I've also done prior to flashing the ROM was:
S-OFF
flashed with HBOOT CM7 r2
that's all.
Did anyone experience the same problem? Or does anyone know how to solve it? To anticipate the question: I haven't wipe battery stats after flashing.
HTC Desire A8181
32.54.00.32U_5.14.05.17
CM7 r2 HBOOT
Click to expand...
Click to collapse
I also had battery issues with 2.0. Flashed 2.1. http://rom.robocik.mobi/Desire/RCMixS/v2.1/

whenever you flash a new rom calibrate your battery(i use battery calibrator) and i am using this rcmix 2.0 rom from last 2 week i have no issue with battery.

I generally get a fair while out of mine.
I've been "up" for 14h:40m and I've lose 42% battery.
Here's some battery saving tips:
Turn off OTA updates (Settings-About-Software Updates)
Turn off "Notifiy me of Open Networks" (WiFi)
Change Wi-Fi Sleep policy to 15 minutes (Wi-Fi Advanced)
Turn off Pocket Mode (In Sounds)
Also, having two batteries helps I kept my old one from an insurance claim and charge them using a dock. Means I don't have to worry about running out of juice if I'm out for a long time.

Well, I updated to RCMix S v2.1 as someone suggested and it actually made it even worse. The battery was sucked dry after 5 hours. Then I used the Battery Calibrator. Now it's been 20h since last charging exactly and I got 60%. That's way better than it was. So it seems like the problem was that I haven't wipe the batter stats after flashing new ROM. Lesson learned.
Thanks for all your answers. I appreciate that.

When do you wipe the battery stats, though? I've never done ir.
I had 15h yesterday and about 22% loss. Now I'm at 1d, 13h, 17m and 54% lost!

Well, as far as I know we are supposed to wipe them after every ROM flash as those stats are old (previous ROM) and not reliable anymore. I'm sure someone more experienced than me will have something more to say about it.

I never knew that. Aren't you supposed to wipe when it's dead, though (0%)?
This would explain why when I got a new phone and installed this rom straight to it the new battery was better than the old. Both are fine now though. Or at least I can't tell which is which anymore!
Sent from my HTC Desire using XDA App

Hy guys have you problem with room when it works only on gsm mode....
Sent from my HTC Desire using XDA App[/QUOTE]

Kryten2k35 said:
I never knew that. Aren't you supposed to wipe when it's dead, though (0%)?
This would explain why when I got a new phone and installed this rom straight to it the new battery was better than the old. Both are fine now though. Or at least I can't tell which is which anymore!
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
You are actually supposed to charge the battery to 100% and then some. Download current widget and put on your homescreen. Charge until 100% and when current widget reads 0a you unplug, boot into recovery and whipe battery stats.

Some Help in choosing a new ROM. (a few questions)

Hey everyone, this is my first post in this great forum.
I am looking for some help in choosing a new ROM for my HTC desire, the main thing i want to see is the new Gingerbread OS 2.3 and the improvements it brings (battery life), but sadly it has not been officially released to the Desire platform.
EDIT :
Okay now Im on CM7, probably gonna try oxygen later, but till now CM7 suits all my needs and the battery seems good (20 to 26 hours heavy usage) but im running into a small problem.
at 9% the battery dies and phone turns off, battery and phone seem somehow out of sync so 9% means 2% or something, how can i fix this and make it turn off at 2% ?

If it's battery life you're interested in, Oxygen is pretty awesome, but it's AOSP so doesn't have any Sense stuff (widgets, messaging app, camera etc) - there's stuff on the market that provides equivalents/better versions though.
I've just flashed a sense ROM a couple of days ago after coming from Oxygen and I'm missing Oxygen so much that I'll be going back to it tonight It's very fast and stable.
But if you want to stay with Sense, this ROM is as close to stock Gingerbread (with Sense) as you'll get http://forum.xda-developers.com/showthread.php?t=1124810
People have been getting good battery life with that but I've not had too much luck getting great results. It's very smooth though
EDIT: CyanogenMod 7 I can't tell you too much about as I've only briefly flashed it. I remember it didn't feel as "clean" as oxygen but it had a huge amount of customisation potential (though saying that, the latest Oxygen build has almost as much, with the ThemeChooser). Also I don't think CM7's battery life is as good as Oxygen's.
What I'd do if I were you: Flash the CM7r2 HBOOT from http://alpharev.nl/ then flash Oxygen/CM7/SGBS depending on what you want to try first - all 3 work on that HBOOT so if you don't like one you can just flash another quite easily.
Make sure you know what you're doing flashing HBOOT though as there's a risk of bricking associated with it. So just read up first.

cgmorris89 said:
If it's battery life you're interested in, Oxygen is pretty awesome, but it's AOSP so doesn't have any Sense stuff (widgets, messaging app, camera etc) - there's stuff on the market that provides equivalents/better versions though.
I've just flashed a sense ROM a couple of days ago after coming from Oxygen and I'm missing Oxygen so much that I'll be going back to it tonight It's very fast and stable.
But if you want to stay with Sense, this ROM is as close to stock Gingerbread (with Sense) as you'll get http://forum.xda-developers.com/showthread.php?t=1124810
People have been getting good battery life with that but I've not had too much luck getting great results. It's very smooth though
EDIT: CyanogenMod 7 I can't tell you too much about as I've only briefly flashed it. I remember it didn't feel as "clean" as oxygen but it had a huge amount of customisation potential (though saying that, the latest Oxygen build has almost as much, with the ThemeChooser). Also I don't think CM7's battery life is as good as Oxygen's.
What I'd do if I were you: Flash the CM7r2 HBOOT from http://alpharev.nl/ then flash Oxygen/CM7/SGBS depending on what you want to try first - all 3 work on that HBOOT so if you don't like one you can just flash another quite easily.
Make sure you know what you're doing flashing HBOOT though as there's a risk of bricking associated with it. So just read up first.
Click to expand...
Click to collapse
Thanks.
I decided to try CM7 7.0.3 for a while and i like it. Alot of customization and some neat features, but the downside is that i dont feel like the Battery consumption has changed at all, its still as i have had my 2.2 froyo stock i think.
I did a small measurment of battery consumtion please tell me if i should be getting these results:
First
-Phone with CM7 rom Charged at 96%
(turned on wifi for like 10minutes, did around 6 phone calls, 1hour looking around settings, animated wallpaper activated for an hour)
After exactly 6hours the battery went down to 76%
So in 6hours the battery decreased 20%
Is this a good result? Will I be getting better battery life in the Oxygen rom ? If so i will definitely switch to Oxygen.

Well that's not exactly bad. I'm currently on 42% after 20 hours 30 minutes with WiFi on syncing emails every hour, a bit of browsing, over an hour of gaming (trial xtreme), some texting, about 20 minutes of calls and some music playing too. Idle it probably uses less than 1% per hour. I'm on the latest oxygen.
I'm really happy with this battery life
I'd recommend downloading battery calibration from the market to get the most from your battery.

Redux is a good ASOP ROM with good battery life - its quite stripped down.
For a sense ROM - I like LeeDroid.

cgmorris89 said:
I'd recommend downloading battery calibration from the market to get the most from your battery.
Click to expand...
Click to collapse
Or completely ruin it. Battery calibration is to be used only if your battery percentage is out of sync with real mV status, so your phone ends up dead at say, 10%. It is not to be used to decrease battery consumption, which is not going to happen. Ever.
To OP, it boils down to your preference. I couldn't care less for ota updates, but if you do, flash ruu, or maybe even rooted stock would work, I'm not sure about that though. As for battery consumption, you had 1 hour screen on, some calls and texts. I'd call that fair.

erklat said:
Or completely ruin it. Battery calibration is to be used only if your battery percentage is out of sync with real mV status, so your phone ends up dead at say, 10%. It is not to be used to decrease battery consumption, which is not going to happen. Ever.
Click to expand...
Click to collapse
Yeah you're right. I meant battery monitor widget. It was late at night, forgive me
Battery monitor widget gives you a good idea of what your drain can be attributed to so is a very handy thing to have on your phone. Battery calibration (as the poster above mentioned) is to line up the amounts your phone reports with the true amounts and should only be used if you're getting strange shutdown occurrences etc. Sorry about that
Some people use juice defender too but I don't really like it tbh.

Yeah, those placebo apps are the best
Juice defender, setcpu, task killers, memory menagers etc share the same place in the Hall of sillyness.

cgmorris89 said:
Yeah you're right. I meant battery monitor widget. It was late at night, forgive me
Battery monitor widget gives you a good idea of what your drain can be attributed to so is a very handy thing to have on your phone. Battery calibration (as the poster above mentioned) is to line up the amounts your phone reports with the true amounts and should only be used if you're getting strange shutdown occurrences etc. Sorry about that
Some people use juice defender too but I don't really like it tbh.
Click to expand...
Click to collapse
Woah i used the battery calibration app i didnt check the rest of this thread until now, so didn't know, i only saw your mentioned batt calibration and i used it.
Today battery Died at around 9%
What should i do to fix this ? please

Fruitt said:
Woah i used the battery calibration app i didnt check the rest of this thread until now, so didn't know, i only saw your mentioned batt calibration and i used it.
Today battery Died at around 9%
What should i do to fix this ? please
Click to expand...
Click to collapse
Read this topic
http://forum.xda-developers.com/showthread.php?t=755903

erklat said:
Or completely ruin it. Battery calibration is to be used only if your battery percentage is out of sync with real mV status, so your phone ends up dead at say, 10%. It is not to be used to decrease battery consumption, which is not going to happen. Ever.
To OP, it boils down to your preference. I couldn't care less for ota updates, but if you do, flash ruu, or maybe even rooted stock would work, I'm not sure about that though. As for battery consumption, you had 1 hour screen on, some calls and texts. I'd call that fair.
Click to expand...
Click to collapse
To the OP (not erklat)
If you flash a carrier RUU you're all set for ota UPDATES.
If you de-branded the phone yourself, you can still get ota updates, just make sure your goldcard is installed prior to installing the update. If you update without a goldcard you will lose your data connection
If you have a rooted stoc, same as erklat's opinion, I think it should work but I have never tested this myself.

shankly1985 said:
Read this topic
http://forum.xda-developers.com/showthread.php?t=755903
Click to expand...
Click to collapse
No i read this method and many users are reporting battery damage. I dont want to do this. My battery on regular use (calls, wifi, games,browsing) lasts 26 hours max and on idle it could last like 40 hours or more maybe.
Its just that the phone is turning off at 9% battery.
I used the Battery calibration app suggested before by cgmorris89 but then erklat said that it would ruin things.
What can i do to make my phone turn off at 2% ?

Oxygen every day!

Try MIUI.us!
Miui is using cyanogenmod kernel and base over which it gives great launcher and best default sms and phone apps.
Firewall and white/black list call blockers are included also.
If you can live with english locale, of course.
Sent from my HTC Desire using XDA Premium App

Thank you guys, yes i will try Oxygen and MIUI later on, but now im testing with CM7 and i have this battery percentage problem. If anyone has a solution to this, will be very much appreciated.
And another thing, should i update my Radio ? i have 4.08.00 something, is it safe to do so or might i brick my phone ?

Battery Life TERRIBLY sucks

My battery life on 4.3 stock was 8 hours screen time (half brightness I believe)
Rooted and flashed a custom rom and kernel 7hr30min screen time
Flashed different kernels dropped to 6hr max screen time (without factory reset)
After installing Xposed and many many modules the screen time kept dropping to like 5hr to 6hr
Updated to KitKat and rooted 4:30min to 5 HOUR MAX screen time PLUS phone got hot ALOT OF TIMES
***RIGHT NOW*** Flashed a custom ROM HyperDrive with Colonel X latest and Compulsion latest BOTH 3hr30min to 4hr30min MAX screen on (EVEN with Jovy23's kernel settings that got him AMAZING battery life with ConservativeX governor - It still did not fix the issue not even a little - I still like Compulsion which was awesome when I was on jellybean) :'(
Same settings for all the above set ups. Whenever I flash a ROM I ALWAYS clean flash and I DO NOT have Titanium Backup NOR do I use any other restoration app. I tried to clear and format every partition. I formatted SD card. SAME issue. I am frustrated by the battery life; it DOES NOT last me a day when on stock unrooted it was easily 8 hours. Also I do not use auto-brightness cuz the sensor uses more battery, so it was on half-brightness)
Someone please help me. The worst thing about a phone is the battery life. I usually browse Chrome and Facebook and for these simple tasks my battery dies quickly (WTH?!). I can't even think about gaming (and I REALLY want to GAME), but I know the battery life would die so much.
Is my phone defective? I tripped Knox. I already had a warranty replacement in like the first 2 weeks cuz of Knox issues stock. WTH is wrong with my phone. I want to format and clean EVERY SINGLE THING on my phone to get it the 8 hours screen on time I used to get. No matter what I do my battery life right now WILL NOT go above 4hr30min to 5hrs screen on. I used to watch Netflix for quite a while back on my stock Jellybean / rooted Jellybean days, now it dies extremely fast.
What should I do? I was thinking of flashing AOSP so it cleans up whatever Touchwiz and Samsung related is on my phone and then re-flash touchwiz so everything is set up correctly. I tried to use the mega-wipe script for a certain Note 3 model but it stopped at like 10% to 20%, so that route did not go well (I manually wiped everything data, internal, etc, before flashing many ROMs and this problem persisted).
I cannot do anything good on my phone until this issue is fixed. I hate clean-flashing and setting up things (I think titanium backup and stuff screws up your system) all the time. I cannot game, I cannot download good apps, I cannot do anything that is not online based or can be backed up online. Apparently my battery state is stated as "good" on the system.

"... All of this in under one day..." Give it a few cycles over the next few days. It'll change. I've been using HyperDrive with ColonelX with the conservative governor tweaked for performance. Can't really say much about the battery life since I have the 10000mAh battery.
Sent from my HyperDrive SM-N900A/T

Dude, if it's all under one day. You need to let a ROM and kernel set In. You can't drive a car without wheels. Just give it 2 or 3 days it will begin to get better. That's what I think too but I give it some days to stabilised if you will . Then my battery goes from normal to good to great. It won't right away start getting great battery life. Unless you have a kernel your phone don't like and flash another it does like battery life improvements where almost instant at least in my case. Like now I'm getting Ok battery life. It's not the best. But it holds. I might switch kernels tonight to spice things up.
Sent from my SM-N9005 using Tapatalk

chuko303 said:
Dude, if it's all under one day. You need to let a ROM and kernel set In. You can't drive a car without wheels. Just give it 2 or 3 days it will begin to get better. That's what I think too but I give it some days to stabilised if you will . Then my battery goes from normal to good to great. It won't right away start getting great battery life. Unless you have a kernel your phone don't like and flash another it does like battery life improvements where almost instant at least in my case. Like now I'm getting Ok battery life. It's not the best. But it holds. I might switch kernels tonight to spice things up.
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
I meant the right now part is under a few days. Idk why i said all under one day (it was late night). This has beena problem since February at least
Trust me I know you have to let a ROM and Kernel set in but my phone keeps working harder than its supposed to. Screen off battery is good, so wake locks are not the problem. The problem is cpu wise something is messed up that it puts my cpu to drain huge amounta of battery

Even you tried another or different ROM still happens?

Lorettaa said:
Even you tried another or different ROM still happens?
Click to expand...
Click to collapse
Yes tried many roms and many kernels with many governors... i suspect its my battery but my battery state is good for some reason

I had this issue but it went away when I updated my phone to 4.2.2
Sent from my SM-N900T using Xparent Red Tapatalk 2

The rom and kernels might be the one messing your battery life, since your battery is in good state, but why not try replacing a battery if you have an extra and see the results...

Neroga said:
"... All of this in under one day..." Give it a few cycles over the next few days. It'll change. I've been using HyperDrive with ColonelX with the conservative governor tweaked for performance. Can't really say much about the battery life since I have the 10000mAh battery.
Sent from my HyperDrive SM-N900A/T
Click to expand...
Click to collapse
Lol I to have zerolemons battery and I must say I dont have to worry about on screen time I get more than 10 hrs...but yeah gotta let the roms and kernals sit in for a day to a week...
Sent from my SM-G900T using Tapatalk

Maybe you have the dreadful chip with "1". Mines a "3" so it's OK
Sent from my SM-N9005 using Tapatalk

the bigger the better?

chuko303 said:
Maybe you have the dreadful chip with "1". Mines a "3" so it's OK
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
How do you find that out?

There is an app that can report this value. The premise is that certain cpu's have different values which indicate how the cpu will perform. The problem is, the same cpu can over time end up reporting different values which pretty much means it is not really a set hardware value and most likely means nothing.
You can find the large thread about it if you look, but it was pretty much debunked as a really value at the time.

first download the new rom http://forum.xda-developers.com/showthread.php?t=2709867
put it on a sd card
make sure you have a custom recovery
1 go to setting back up and recovery do a reset from there
2 let the reset be done then restart the phone and go to recovery
from recovery do a full wipe factory restet
3 install the zip from the sd card
4 pick the apps you want with aroma installer and install compulsion kernel
4 finish installation and boot up
set up the phone and enjoy it bro.....

mrej201 said:
first download the new rom http://forum.xda-developers.com/showthread.php?t=2709867
put it on a sd card
make sure you have a custom recovery
1 go to setting back up and recovery do a reset from there
2 let the reset be done then restart the phone and go to recovery
from recovery do a full wipe factory restet
3 install the zip from the sd card
4 pick the apps you want with aroma installer and install compulsion kernel
4 finish installation and boot up
set up the phone and enjoy it bro.....
Click to expand...
Click to collapse
Nice battery life enhancer.

You have to let the rom settle before you can get accurate battery life akin to the rom and kernel. Trust me I know this as a fact. I have been flashing roms like crazy since the days of the Samsung admire and the rom takes days to settle.

messiahfreedom said:
You have to let the rom settle before you can get accurate battery life akin to the rom and kernel. Trust me I know this as a fact. I have been flashing roms like crazy since the days of the Samsung admire and the rom takes days to settle.
Click to expand...
Click to collapse
Yes he let it settle but still no good for him.

I have the same problem. 4.3 battery life was 6 hours screen time, 4.4 down to 3 hours screen time. Note 3 used to be my ideal, perfect phone. 4.4 ruined that.

hfuizo said:
I have the same problem. 4.3 battery life was 6 hours screen time, 4.4 down to 3 hours screen time. Note 3 used to be my ideal, perfect phone. 4.4 ruined that.
Click to expand...
Click to collapse
You made sure to toggle allows allow scanning off?
Toggle either power-saving or GPS only under location?
Power saving mode if applicable?
Turning of haptic feedback?
The always allow scanning seems to be the number one battery killer for me. I turned that off and noticed immediately better battery life. Almost akin to an extra minute per one percent, which adds up.

messiahfreedom said:
You made sure to toggle allows allow scanning off?
Toggle either power-saving or GPS only under location?
Power saving mode if applicable?
Turning of haptic feedback?
The always allow scanning seems to be the number one battery killer for me. I turned that off and noticed immediately better battery life. Almost akin to an extra minute per one percent, which adds up.
Click to expand...
Click to collapse
Yep, did all that stuff from day 1 back on 4.3. Updating to 4.4 was the most frustrating thing ever. Many people here report great battery life with 4.4, but many like myself had it slashed in half upon upgrading. It ruined an otherwise perfect phone.