Database Info

[Battery Showdown] Top captivate roms battle it out! Updated 3/31 w Phoenix results

Test # 1 Video Streaming Over WiFi
ROMS Tested So Far:
Continuum
Serendipity
Precision
Firefly
Cognition
Phoenix
Paragon
Twingerbread
Supernova
Darky's
di11igaf
Dragon
Andromeda
**DISCLAIMER**
Keep in mind that results will vary for each phone and just because I get a certain battery life using the rom's and kernel's listed below does not necessarily mean that you will.
Tired of constantly flashing to find great battery life only to realize the rom didn't meet your expectations; then this thread is for you. Over the next few weeks I will test every rom imaginable and post real world results that will include battery stats, linpack and quadrant results.
**This is not meant to put down any particular ROM. Without our great dev community my captivate would have been returned and thank you all for your hard work.**
[Goal]
To provide the captivate community with real world results from top roms in everyday usage where battery life is the key focal point, but performance is not affected. Hopefully this will help save you time from having to flash multiple ROMS.
[Roms]
*This list will continue to grow*
Stock 2.2 kept fcing so will test it on test 2 this evening 3/28
[Usage]
Each night I will run the exact same VERY LONG documentary using VLC stream and convert and current widget.
[Specs]
*Every rom will run "out of the box" meaning Kernel, Modem, Settings all default to how it was cooked*
° Default clockspeed 1000mhz (as suggested by a smart person listed below)
° 40% Brightness/Screen Timeout Turned Off
° 100% Charge each run (0mV to make ryude get a chubby)
° Auto Sync off
° GPS off
° Zeam launcher
° VLC Steam & Convert used w/ same long documentary used each time
° Phone is placed in exact same spot every test and is unplugged as soon as I hit play
Results So Far
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Test # 2 Web Browsing
Test # 2 Web Browsing on 3g
Roms Tested So Far:
Continuum
Serendipity
Precision
Stock 2.2
Firefly
Phoenix
Paragon
Currently Running:
Twingerbread
Upcoming:
Supernova
Darky's
di11igaf
Dragon
Andromeda
Juiced
Cognition
Goal:
In previous tests I tested on wifi using a vlc stream & convert. With this way of testing I'm hoping to get more realistic real-world results that you can use as a guideline to a roms overall battery performance . Keep in mind your results may vary.
Testing:
Every night I will set tab reload to 15 seconds and it will continuously reload XDA website until the phone dies. It will be placed in the same spot in my house every night and will be ran on phone data, thank god for the unlimited plan.
Applications I will be using:
- Dolphin Browser HD
- Reload tab plug-in
- Current widget
- My Settings
[Specs]
*Every rom will run "out of the box" meaning Kernel, Modem, Settings all default to how it was cooked*
° Default clockspeed 1000mhz
° 40% Brightness/Screen Timeout Turned Off
° 100% Charge each run
° Auto Sync and GPS On (To help give near real world results)
° 3g
° Zeam launcher
° Phone is placed in exact same spot every test and is unplugged as soon as I start Reload Tab Plug-in.
**Will be running all tests on 3g as some ROMs do not have HSPDA**
Results

Reserved for future use

Cool. Any chance you can add stock Froyo to the list as a reference point? It would be interesting to see how much custom rom's are improving over stock...

TheSopranos16 said:
Cool. Any chance you can add stock Froyo to the list as a reference point? It would be interesting to see how much custom rom's are improving over stock...
Click to expand...
Click to collapse
Great suggestion only thing is I won't be able to undervolt so numbers will not be accurate to this testing, but I might run the best two roms after I'm done testing at there defaults against stock froyo.

Since many users are set at the standard 1000, would you consider the testing at standard 1000 speed for a more accurate battery life any user can expect. Just a suggestion

Sounds like Precision should be included, with the black theme it easily gets great battery life.

diablo009 said:
Is this under-clocked? I am on the same ROM with speed at 1000 with no under-volting.
I get 1600+ scores on quadrant, and 14+ scores on linpack (tested out even now).
Click to expand...
Click to collapse
Yes I listed in the specs what they will all be running at. All are uc/uv to 600mhz.

I have been waiting for something like this but I assume that the devs would all be up in arms if someone rated their ROMs higher/lower.
If this thread will be allowed to continue, totally looking forward to the results.
And you should totally throw Precision into the mix as it seems like the de facto battery saving ROM as it skimps on a few services.

Enhanced said:
I have been waiting for something like this but I assume that the devs would all be up in arms if someone rated their ROMs higher/lower.
If this thread will be allowed to continue, totally looking forward to the results.
And you should totally throw Precision into the mix as it seems like the de facto battery saving ROM as it skimps on a few services.
Click to expand...
Click to collapse
Personally, if I was a dev and saw that my rom wasn't too good, I would try to make something better. So who knows how it turns out. A little competition wont hurt anyone, and hopefully have better roms! Btw, good idea with this
Sent from my SGH-I897 using XDA App

Just finished di11i on to paragon. The theme on di11i is very nice too almost a carbon fiber look.

add Torch 1.5
Also try Torch 1.5. So far been outstanding in battery department.

I know this doesn't help as far as battery life, but just for a reference as far as stock 2.2:
1. Linpack - around the 14 mflops (sometime in the 13 range, sometimes in the 14)
2. Quadrant - 1050 or so
3. Nenamark1 - 51 fps (not sure if anyone uses that one much, but thought I would throw it in as I had it available lol)
I would estimate the battery life if I didn't use the phone at all (just left it sitting in standby) would be at 60hours plus, as I get up to around 40 with light usage on 2.2 with battery to spare (haven't run it dead yet to be honest on 2.2) Still a little early though as the phone hasn't been drained and recharged full thus far.
I just checked my phone, and I have had it on for over eight hours, and I am at 92% battery left. I have hardly used the phone today (just a few texts is all), but going on that I should get around 80 hours on a single charge if I just leave it sitting there.

Great idea. I'm a huge continuum fan
Sent from my GT-I9000 using XDA App

good info to know...thanks alot!

This sounds like quite an undertaking. Good luck with the project. I'm looking forward to the comparisons. Thank you for your hard work to benefit Captivate owners out there.
Sent from my SGH-I897 using XDA Premium App

Charge drain charge drain lol gonna get online now and buy a new battery just incase i destroy this one.

LOcation matters
I am using JuicePlotter to monitor my battery usage closely. From what I see, different locations give dramatically different battery life. At home my battery drops 1% per hour. At work 20 miles away it drops 2% on captivate modems but 4-5% on i9000 modems. So the signal strength, cell tower type make big difference.
I have tried multiple Cog ROMs and Paragons ROMs, currently on Twingerbread 3.2. The best ROM in terms of battery life is cog 3.2 for me.

Yea but most people throughout the day are on the move and all I'm trying to achieve are results based on that. The constant will be the kernel in this test that way any thing I log can be directly attributed to the rom/modem. This by no means is the end all, but it will give the community a great idea of where each rom sits.

Interesting kernel choice. I've heard Suckerpunch lauded, but that ignores the fact that most of these roms flash with a different kernel by default. Is it a better test to run them all with the same kernel, or with the one they chose?
I dunno. Might be interesting to test and formally see how much kernel choice affects things.

SetCPU + Voltage Settings for Overcome 1.2.0

Hey Guys,
Thought I Would share for any interested...
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*Added a setting for charging that is 100/1400 conservative with a priority above everything except the heat one. so like 91 heat and 89 charging.
Seems stable, zippy and doesn't kill the battery too fast. All good.
Nobleskill
UPDATE: the settings above worked a treat for me on froyo but after updating to gingerbread I found it was back to the old drawing board time. For whatever reason, and being fair to Samsung and gingerbread by saying that the tab is now older and been used and abused its whole life, I wasn't able to apply the same level of undervolting without lockups and rebooted.
Why? Well could be a few reasons, the one mentioned above I really think plays a part in it. I also think though that gb is just different. Obvious I know but I mean its different at a base operating level. It needs new bootloaders and as alot of the experienced developers currently doing the tab gb stuff I think are finding its got a few curveballs its very happy to throw into the mix. The other point is that the control app has been updated dramatically with new ui and a more polished look to the outside which I think also follows into the coding. Xan, the developer must be a very talented individual and is pioneering the CPU control at kernel level IMO and really deserves our support. You can get the fee apk but I think its worth a donation just for the free version.
I notice the newer kernels are also having preset UV settings which is awesome. Gives you a base to build on and as each tab is different, yours may not go as low in volts as little Johnny's tab but it may go further than big Bob's one, it provides a good starting point. Or whatever..
Jump on over here: http://forum.xda-developers.com/showthread.php?t=943669
This guy is my favourite developer evar! Very friendly, very talented and shares <3. Read this thread as much as you can, its brilliant and has a few gems hidden in the posts. Also the kernel's are basically on the cutting edge. Its this guys patches that find their way to other, and all I'm pretty sure, kernels and roms.

thanks a lot buddy ! I was really looking for this !!!!!! you're my hero !!!!

Your most welcome mate. Any issues make sure and let me know through this thread.
Nobleskill
Ps. Watch how big a difference it makes to battery drain with screen off and below 30. I keep thinking it will die before I get a charger and like 4 hours later its only gone down by about 10 percent.
As always, support the Dev's if your able to. They richly deserve it and it doesn't have to be much to make a difference. )

nobleskill said:
Your most welcome mate. Any issues make sure and let me know through this thread.
Nobleskill
Ps. Watch how big a difference it makes to battery drain with screen off and below 30. I keep thinking it will die before I get a charger and like 4 hours later its only gone down by about 10 percent.
As always, support the Dev's if your able to. They richly deserve it and it doesn't have to be much to make a difference. )
Click to expand...
Click to collapse
there is a problem regarding those settings. did you try to restart the Tab after? mine doesn't start at all ! I should try several times to keep pressing the power button and then, after few minutes it starts again. after uninstalling the Set CPU and Voltage Control, everything comes to normal.....any advice?

SetCPU seems to be very crashy on the SGT. You might want to try not decreasing the voltages quite as much, some CPUs can't cope with it. I've got mine set even lower and I'm fine.
The "performance" governor locks the speed at the "max" value, the "powersave" one locks it at the "min" value. It's a pity that the "Ondemand" and "Interactive" governors seem to be so unstable as either would be better for performance than "Conservative".
I've also got another profile for "Charging" which ramps everything up a bit.

One thing I have noticed after spending some time in here is that all SGT's are not created equal!! I have no issues with the settings above, none at all. It boots fine, runs super fast with 2200 being the average score in quad. And I am on my second day without charging... its been lighter usage but still....
I guess I got lucky but all I can say is trial and error, or search for a simillar problem with another user and ask what settings if any worked for them. My thinking is that there would be batches that will run one way and others that won't.

nobleskill said:
One thing I have noticed after spending some time in here is that all SGT's are not created equal!! I have no issues with the settings above, none at all. It boots fine, runs super fast with 2200 being the average score in quad. And I am on my second day without charging... its been lighter usage but still....
I guess I got lucky but all I can say is trial and error, or search for a simillar problem with another user and ask what settings if any worked for them. My thinking is that there would be batches that will run one way and others that won't.
Click to expand...
Click to collapse
Its the CPU. They all have different tolerances on the minimum they can run at. Samsung just uses a voltage that guarantees all of them will work at. I've decreased everything 800mhz and up to -200mv. So far so good.

ovigt71 said:
there is a problem regarding those settings. did you try to restart the Tab after? mine doesn't start at all ! I should try several times to keep pressing the power button and then, after few minutes it starts again. after uninstalling the Set CPU and Voltage Control, everything comes to normal.....any advice?
Click to expand...
Click to collapse
Try install jus UV & set the limit to 1400ghz. Run it for a day or two.
I have problem with SetCPU, give up on it. So now i only have UV installed.

thanks for the settings, no problems since 1 day

Sorry for stupid question, Am I need to flash kernel for 1400ghz? Or just use SetCPU with overcome 1.0 karnel?
Since there are some karnel said they are for 1.4ghz so I am confusing on it, tks!

izamoscar said:
Sorry for stupid question, Am I need to flash kernel for 1400ghz? Or just use SetCPU with overcome 1.0 karnel?
Since there are some karnel said they are for 1.4ghz so I am confusing on it, tks!
Click to expand...
Click to collapse
If the kernel does not support >1ghz, then setcpu cannot set the speed to anything higher.
The overcome kernel supports an overlock of 1.2 and 1.4Ghz.

Overcome Kernel 1.0 is an overclock kernel. Just install setcpu to oc

nobleskill said:
Hey Guys,
Thought I Would share for any interested...
Seems stable, zippy and doesn't kill the battery too fast. All good.
Nobleskill
Click to expand...
Click to collapse
with the settings above do you have it set up as "Save as boot settings"? i had set mine at bfq and limit clock to 1200mhz and not changing anything else saving it as boot but when i went to restart the tab it got stuck on the Galaxy Tab screen, i had to re-store my backup in order for the tab to re-start.
also how did you get the 600mhz:?-100=?mv?
i am using richardtrip's [Kernel] [EURO] [1.4ghz OC/UV] MCR EXT4 compatible/Voodoo Sound V15 22/02 hope that helps with what i am asking.

I gave up on Set Cpu and switched to Cpu Tuner, a choise I don't regret at all.
Sent from my GT-P1000 using Tapatalk

Recently changed to overcome kernel 2.0 and have changed to bfq. All stiull running smoothly.
And yeah i have mine all set to set at boot.

Thanks! Was looking for this.

I copied your settings to the last detail (bfq scheduler) and my Tab is crashing.
Now I am trying with lower UV.

braby said:
I copied your settings to the last detail (bfq scheduler) and my Tab is crashing.
Now I am trying with lower UV.
Click to expand...
Click to collapse
Sorry buddy its been ages I should probably update this. I find that overcome has gottan alot better I still use the same undervolting but no profiles on set CPU. Just set to 100 min and1400 Max ondemand. I can use bfq and have no issues but one thing I know for sure, and I think it was even stated in this thread, no 2 of these are the same... same deal with more strain on the CPU than others so if my settings didn't work for you I'm sorry for that but all I can suggest is what I did to find the right setting... experiment, trial and error...
Best of luck,
Nobleskill

I found out what I did wrong...on Screen Off profile I didn't set "Performance" scaling, instead I did "Conservative"...the Tab was only crashing when screen was off!
Now that I switched it to performance it works just fine...
Using Overcome 1.4.2...
What's has better battery life, now that you have experience with both, with the profiles mentioned above or "On Demand" with no profiles?

That's a tough one as I use my tab a whole heap more and for many more things. I have 3 times as Widgets and so on... put it this way I used to get 2 days with low to moderate use on the setting in this thread, now with extremely heavy usage, I'm talking 8 hours or more almost straight with web browsing, ebooks, video, music, news ect...
I like my new set up cause its alot easier to configure and I find the most important aspect to battery life is the undervolting... overcrowded seems to handle the just fine. The only other thing I really swear by is an app like juice defender or battery boost.. set them up and its turning things off when not used which can be massive...
Hope this has helped and I'm happy to hear you sorted the crash issue.
Nobleskill

[Q] Is my Deep Idle Working? LOOK!!!

Please tell me if my Deep Idle is working. I imagine that there are others with the same question. Here is a picture.

No. You need to flash the Bluetooth framework fix. I take it you are on stock/a stock based rom?

nodstuff said:
No. You need to flash the Bluetooth framework fix. I take it you are on stock/a stock based rom?
Click to expand...
Click to collapse
Nope im running CM7 with Matrix kernel 11.5
also i dont use BT

Turn on Screen Off Max Freq. Also, you mean CM9 right? And i believe the latest (a20p1) has the bluetooth fix incorporated.

Harbb said:
Turn on Screen Off Max Freq. Also, you mean CM9 right? And i believe the latest (a20p1) has the bluetooth fix incorporated.
Click to expand...
Click to collapse
CM7 with a ICS Theme and even though i dont use BT i still need to flash this? Where do i find such a God given thing? lol

Sorry, for some reason i thought you said matr1x 14.5. The bluetooth bugfix is, as far as i know, only for ICS ROMs (bluetooth is always "ready" to turn on, which forces only top=on time). Turning on Screen Off Max Freq will hopefully give you some deepidle time.

Harbb said:
Sorry, for some reason i thought you said matr1x 14.5. The bluetooth bugfix is, as far as i know, only for ICS ROMs (bluetooth is always "ready" to turn on, which forces only top=on time). Turning on Screen Off Max Freq will hopefully give you some deepidle time.
Click to expand...
Click to collapse
Thanks bud. Not to be a nooob and all but how long does it take to initiate?

I'll get some top=off time after about 20 seconds with nothing at all in the background and using matr1x 14.5, stock ics, 100/1200, lazy and screen off max freq. I would say if you don't have anything after a 2 or 3 minutes it's not activating for some reason.

Harbb said:
I'll get some top=off time after about 20 seconds with nothing at all in the background and using matr1x 14.5, stock ics, 100/1200, lazy and screen off max freq. I would say if you don't have anything after a 2 or 3 minutes it's not activating for some reason.
Click to expand...
Click to collapse
Cool ill check that out. What ROM/KERNEL combo do u have? what the battery life on that 100/1200 set up?

Cool ill check that out

I said the ROM and kernel in the post and it's in my sig too. With 4 hours of gaming and 2 hours of general internet browsing i got around 12 hours with weak 3G signal. Battery drops very little with no use, somewhere around 5%/10 hours. I havn't noticed any major battery drain OCing to 1200, just a little bit of heat on demanding games. Drain is proportional to increase in perfermance most of the time.
I'd definitely be confident going 2 days with a single charge as long as screen time is kept under a couple hours. ATM i'm playing around with different governors to get better battery life, deep idle won't be any use to me for another month or so.

Harbb said:
I said the ROM and kernel in the post and it's in my sig too. With 4 hours of gaming and 2 hours of general internet browsing i got around 12 hours with weak 3G signal. Battery drops very little with no use, somewhere around 5%/10 hours. I havn't noticed any major battery drain OCing to 1200, just a little bit of heat on demanding games. Drain is proportional to increase in perfermance most of the time.
I'd definitely be confident going 2 days with a single charge as long as screen time is kept under a couple hours. ATM i'm playing around with different governors to get better battery life, deep idle won't be any use to me for another month or so.
Click to expand...
Click to collapse
I know your running stock but there are sooooo many stock ics roms for the NS4g.

After booting up, open and close the camera. That works for me.
I'm on CyberGR CM7

turkobr said:
After booting up, open and close the camera. That works for me.
I'm on CyberGR CM7
Click to expand...
Click to collapse
Ain't that some shiznik! It worked! Thanks broski!
Sent from my Nexus S 4G using XDA App

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This is what it looks like now.
Sent from my Nexus S 4G using XDA App

treyweez11 said:
This is what it looks like now.
Sent from my Nexus S 4G using XDA App
Click to expand...
Click to collapse
This is know as the CAM bug which was fixed in ics kernels. Every time you reboot the phone your camera is active and prevents the deep idle from working. Opening and closing a camera app closes it and deep idle can start working.

Isn't the cam bug only fixable by disabling/removing google talk (or installing the non-video one)? Otherwise you are forced to open and close a camera app each time you reboot to get any top=off values.
Also, i mean true stock, google OTA. The NS4G doesn't have this yet.

Harbb said:
I'll get some top=off time after about 20 seconds with nothing at all in the background and using matr1x 14.5, stock ics, 100/1200, lazy and screen off max freq. I would say if you don't have anything after a 2 or 3 minutes it's not activating for some reason.
Click to expand...
Click to collapse
Could you please explain what does screen off max freq do ? I have tried to get into those things May be now is a nice time

While screen is off, allow the processor to use max frequency (stock is 1000mhz). This allows "race-to-idle" which the hardware is capable of, effectively reducing the amount of time the CPU is processing (and therefore powered), reducing power consumption and further allowing deep-idle to work.

[STATISTIC] [USERS NEEDED] Miui battery drain problem

---
Woops wrong category, sorry ^^ Please move it to general
---
Hey guys,
as you can see, I´m back And it´s my first target to fix the massive battery drain on Miui. The first thing I do is to compile a new kernel for Miui, but I need your help, too.
I have to locate the application that uses the battery most, so please go to Settings -> System -> Battery Settings , make a screenshot of it and post it in this thread. If you have the time to, please use Spare Parts, too and also make a screenshot of the battery usage.
Thanks for your help!
fuss132
PS: Of course you should run Miui and not CM7 like I did in the example picture
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whats about better battery stats, cpu spy , batterylive and spare parts screens? whats the best for you? i will post all if needed
screens v8.5
BatteryLive
http://img843.imageshack.us/img843/3222/shot000028b.png
CPU Spy
http://imageshack.us/g/594/shot000022.png/
Spare Parts
http://imageshack.us/g/213/shot000019.png/
System
http://imageshack.us/g/405/shot000011.png/
Detailed WiFi, Android OS, Android System, Media Server (at system)
http://imageshack.us/g/833/shot000030.png/
​

its android system in miui (all versions) it gets about 40%+ when normal use ! if u barely uses it it goes way above 50% ! sorry cant provide a screenshot since m on ddkp3 crom now !

HeathenMan said:
whats about better battery stats, cpu spy , batterylive and spare parts screens? whats the best for you? i will post all if needed
edit with screens coming soon after answer
Click to expand...
Click to collapse
Well, BatteryMonitor and SpareParts are pretty usefull, too. If you have the time to it would be a big help for me

Will edit this post in about 5 minutes with the required screenies. Good to have you back fuss good luck.
edit1: Android System eating up the most battery on normal usage. Getting screenies for you now...
Edit2: new find, alarm manager is using up random battery. I don't use alarms. Uploading screenies, sorry slow internet
Sorry couldn't do spare parts cos I'm charging.. just started a few minutes ago D:

At the moment I drained my battery with games so it wont provide you with the correct stats (I guess) Charging it now will post the screenshots asap

what are you needing from battery monitor?? it display the same as spare parts and system^^
updated previous post.

My Battery Stats

damn! xda needs spoiler so bad....
it'll be better to upload all images at imageshack.us album (?) or some other way which dont need that much scrolling

Battery is normal for me (or not?)
Hi, as soon as I finish the full charge, i'll post some screens.
Personally, i think i'm not having this problem. Battery lasts for a day and a half with a normal-heavy use.
Salut!

Fuss don't forget the vibrator its too week
Sent from my GT-I9003 using XDA App

pls fix all miui rom problem

Ever since I turned off overclock and switched to 2G only mode and switched to 1000 max with interactiveX and bfq governors; I get very good battery life. 1.5 days on heavy usage. 2 days on moderate and 2.5 days on light.

manu1991 said:
Ever since I turned off overclock and switched to 2G only mode and switched to 1000 max with interactiveX and bfq governors; I get very good battery life. 1.5 days on heavy usage. 2 days on moderate and 2.5 days on light.
Click to expand...
Click to collapse
did u install any battery saving app e.g. juicedefender ?

Nope nothing. IMO its HSDPA which is causing a lot of battery drain.

Fuss, I wouldn't like to difficult more your work, but I have to say that yesterday with MIUI V9 + VurrutKer v2 + MAX 1000 MIN 300 + sio + SmartassV2 I got an awesome battery life. Here in the forum people usually have like 2 day battery in MIUI ROM but I don't. I have to charge it every night and yesterday I was in 53% when I went to bed. Awesome. Hope it helps. Thank you

luiseteyo said:
Fuss, I wouldn't like to difficult more your work, but I have to say that yesterday with MIUI V9 + VurrutKer v2 + MAX 1000 MIN 300 + sio + SmartassV2 I got an awesome battery life. Here in the forum people usually have like 2 day battery in MIUI ROM but I don't. I have to charge it every night and yesterday I was in 53% when I went to bed. Awesome. Hope it helps. Thank you
Click to expand...
Click to collapse
I am having lot of battery drain. Are you using Set CPU and No Frills CPU or only one of them?
Edit : Tried to flash Vurrut v2 but got stuck on Samsung Logo. Now flashing v3 is alo not working

jesrani said:
I am having lot of battery drain. Are you using Set CPU and No Frills CPU or only one of them?
Edit : Tried to flash Vurrut v2 but got stuck on Samsung Logo. Now flashing v3 is alo not working
Click to expand...
Click to collapse
im using cpu control from aroma installer, in my oppinion much better then set cpu or no frills - if you want a choice between them let me say that no frills is reacting faster and it didnt use that much memory.
at moment vurrut 1 is my favorite because its stable
Sent from my GT-I9003 using XDA App

Batt stats
There is my stats. 1d 8h of normal-heavy use...
Salut!

Sent from my HTC Desire using XDA App
It is so serious
Drain in 3hrs
35%~8%
I will post it soon

[GUIDE] Ultimate Battery Life For Note 3 [UPDATE:13/10/14]

Well, Saving your phone's battery without compromising your phone's performance will be a little difficult for everyone. Everyone nowadays prefer phones which can last them for atleast a day. But what if we could extend our phone's battery life to 1.5 days or 2 days without compromising the power of your phone?
Yup. That's possible. I've been experimenting with my Note III SM-N900 [Indian Exynos Model]. I did it for almost like 6 months. My aim was to maximize my phone's battery life. And finally I found it. I wanna share all my results and the secret tips to save that last precious drop of your battery juice!
[NOTE: [Please keep in mind that I own a Exynos Model, i.e, SM-N900 and made all the customization on this model only. Many methods explained herein might not work for you.]]
:victory:
So, first a few words on my phone's history:
When I first got my brave and good looking Note 3, I was on 7th heaven. I got Android 4.3 Jellybean onboard. I used to get 2 days of unparalleled battery life. Smooth UI. But, very few customization. Previously I used to own a Galaxy SII i9100G. It had a great potential and till date is considered as the most selling Galaxy Variant. But, still I was happy. Then came the wave of KitKat 4.4.2. Guys, you won't believe, I spent weeks in the dilemma of the fact - Should I root or not root. Should I first update and then root? Should I root and then update? I was going crazy.
But then I decided. No, I should first update via OTA and then root my phone. And then, I did it. But soon I realised that I did a wrong thing. I experienced very, very poor battery life. With 3G on and screen time of 3-4 hrs, my phone used to die. But then I thoguht, there's still hope. Thus, I spend a lot of days into finding the best customisation for improving the battery life. And after 6 months, now I finally got the best battery life.
Guys, another thing I would like to say here is that, there was a very good article on saving battery life before, made by stanley08. [READ IT HERE].
STEPS TO MAXIMIZE YOUR BATTERY LIFE
1. Kernel Customisations:
Well, as you all know, kernel is the thing that sits between your software and hardware. Doing optimal changes to it is the best way out there to save battery. First of all currently there are two best kernels out there. halaszk and pekaka. Both are absolutely amazing kernels and I found halaszk to offer a greater number of modifications. But for everyday use I use pekaka now. On the top, it doesn't matter that much. So, let's get started.
First of all, halaszk kernel comes with a very powerful tool called synapse. It allows you to individually set the frequencies, voltages, GPU speed etc.
If you wanna use pekaka, then use an app such as Trickster MOD app from PlayStore.
The main part comes now:
1. Reduce all A15 cores to -25 mv each.
2. Reduce all A7 cores to -13.5 mv each.
3. Use 0 as the parameter for Multicore Power Saving
4. Use Interactive or Ondemand governor.
5. Use CPU frequencies upto 1.3 or 1.4 GhZ.
6. Use GPU frequencies upto 340 or equivalent
That's the kernel part.
2. ROM:
Using custom rom might not be that important because almost all roms available now are either stock or MIUI. So, it won't make a difference. Still some roms might be slightly better.
One rom that I found was Alba's Ultralite roms. These roms have been developed by a russian developer. The thing that's really good in these roms is that, the Ultralite series weigh around 600-700 MB and are totally debloated. So, lesser the bloatware, lesser is the memory consumed and hence, lesser is the battery consumed.
Another rom to observe is Dr. Ketan's Rom series. Many users are satisfied with the balance of battery life and lots of customisations.
Some other good roms are Alliance ROM, and Murat ROMS. There might be many more roms with good battery life. Users may leave their comment below and I'll add them.
3. Memory:
Yup, more memory means more battery. Many would disagree with me but, I tried it out and saw amazing results. I would suggest you to use Clean Master to clear cache, memory and check out your phone's temperature.
4. USPM MOD:
Xperiacle, an amazing developer[And my fav!] has developed a module called UPSM mod. Ultra Power Saving Mode, was found in Galaxy S5. He did an amazing job and has developed this module, which allows you to activate UPSM or Emergency Mode. Doing this, will limit you to basic apps such as Phone, Whatssap, etc and will prove immensely helpful for saving battery. This is highly recommended for an y battery savvy. There's also another Xposed module which reduces NLP Kernel wakelocks, thus making your phone sleep better. Download it here.
5. Reception/Signal:
Believe it or not, this is the part that takes away a huge toll on your battery. If you have bad reception, you ought to have a bad battery life. I saw the results myself. On full signal, my phone's battery dropped to around 98% after 6 hrs standby whereas on 1 bar signal, I found my battery to be 82% after 6 hrs standby. this is because, your phone tries to continuously searches for better battery.
6. 3G/ WIFI:
Personally I found 3G to consume much more battery than WiFi. So, it is advisable to keep it turned off while not in use. If you get a simultaneous screen on time and total 3G usage time of 5-6 hrs, you're great! That's the best you can get.
7. Temperature:
Your phone's temperature makes a lot of difference. Many times you might have experienced your phone's temperature shooting up like a volcano! Well it happens when your CPU or GPU is put under a lot of stress. For example while playing a high quality game. Many times it happens when some background app freezes. So, try keeping your phone a bit cool! I mean, always check if any background apps are running continuously.
8. Greenify:
Hey, I am not talking about afforestation or something! I am talking about a wonderful app called Greenify. Now, what it does is, it freezes the background processes and apps [which you select], and thus frees up a lot of memory.
9. Debloat:
Yup, lot's of apps on your phone may slow it down and deteriorate your phone's battery. Try removing apps that you don't use anymore.
Also, another thing I would like to suggest you all, is to keep reflashing your rom every 2 to 3 months. This would ensure less momory clutter and defragmentation. Also, it would keep your phone running smooth. Also, as you might already know, AMOLED displays consume much battery for bright colors and brightness level of the screen. So, it's advisable to use dark wallpapers.
So, guys these were some of the customisations I used to achieve the perfect balance of battery life and performance. If you have any more idea or trick to save battery, do post it below. We'll keep this thread updated.
Thanks! And do share this thread with others.
:fingers-crossed: :fingers-crossed:

UPDATE:13/10/2014
Here are some amazing benchmarks of my friend/contributer @Spitwista
He has also come up with a great way to save battery.
Things to look at
1. 30 Minutes gaming(Real drifting)
2. 30 minutes music (power amp)
3. 7Hrs SOT
4. More than 24Hrs full run time
5. True deep sleep
6. Smooth and 100% stable all around
7. Using Halaszk kernel v20.b2
For now, check out these screenshots:
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Guys, I am currently testing on XXUENI1 the latest firmware. Will soon give the battery statistics.
Sent from my amazing Exynos Note 3.

Till now, getting really amazing battery on XXUENI1
Sent from my amazing Exynos Note 3.

thetitanium said:
Till now, getting really amazing battery on XXUENI1
Sent from my amazing Exynos Note 3.
Click to expand...
Click to collapse
Screenshots or it didn't happen ?

r-l said:
Screenshots or it didn't happen ?
Click to expand...
Click to collapse
Will give it soon.
EDIT:
Here are the screen shots. Love this firmware.
Note that I started monitoring from 85% and used mobile data all the time when WiFi wasn't on.

Will soon post a fresh screenshot.
Sent from my amazing Exynos Note 3.

Im using MultiX ROM 2.0 with stock kernel. Amazing battery life, about 2 hours screen on time with 69% battery left. Im using greenify
Sent from my SM-N9005 using Tapatalk

tarantulapg said:
Im using MultiX ROM 2.0 with stock kernel. Amazing battery life, about 2 hours screen on time with 69% battery left. Im using greenify
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
I believe MultiX is not for SM-N900..... Very less roms for exynos......
Sent from my amazing Exynos Note 3.

thetitanium said:
7. Temperature:
Your phone's temperature makes a lot of difference. Many times you might have experienced your phone's temperature shooting up like a volcano! Well it happens when your CPU or GPU is put under a lot of stress. For example while playing a high quality game. Many times it happens when some background app freezes. So, try keeping your phone a bit cool!
Click to expand...
Click to collapse
Just a minor thing - It's not the temperature that degrades battery life, but the applications that consume more resources, thereby also more battery and generating heat.

You are too much forcing yourself to lengthen the battery life while limiting yourself from users' accessibility and ease.
Sent from my SM-N900 using XDA Premium 4 mobile app

No bro..... not at all.... even I clearly mentioned it in the OP. Read and then speak bro.
Sent from my amazing Exynos Note 3.

Someguyfromhell said:
Just a minor thing - It's not the temperature that degrades battery life, but the applications that consume more resources, thereby also more battery and generating heat.
Click to expand...
Click to collapse
Maannn..... please read the 7th point carefully. Nowhere did I mention that temperature degrades battery life. Please read things carefully and then say me what's wrong with my post.
Sent from my amazing Exynos Note 3.

Let me tell all my findings from your post. I would like to say my assumtions so all may not be true.
1. You plugged in awhile AC power or USB cable to PC in between your process and thus it stretched out the battery for awhile.
2. You put in Airplane mode at the end and may be it has been since 10% battery life.
3. You increased the screen time while letting minimal CPU and GPU usage just by reading and browsing internet with chrome for a few mins. (May be brightness is set to 0)
4. I didnt see other applications such as facebook,whatsapp and so on ( you may have uninstalled them and even google play services)
For me, i didnt tweak anything about CPU or kernel. I just use official firmware, rooted and greenify only. Whenever i browse internet, i turn on 3G and then back to 2G with background applications such as viber, facebook,wechat with casuality and ease. My battery would last for a day with screen on time around 5 hrs and sometimes more than 5 hrs.
So my conclusion is your post doesn't intend for "Competition of Battery Life on Galaxy Note 3" . It should be a balance between battery life and users' accessibilty without limitations of the activities.
I appreciate your effort for this post but I dont mean to offend. I am sorry about my comment.

satslu said:
Let me tell all my findings from your post. I would like to say my assumtions so all may not be true.
1. You plugged in awhile AC power or USB cable to PC in between your process and thus it stretched out the battery for awhile.
2. You put in Airplane mode at the end and may be it has been since 10% battery life.
3. You increased the screen time while letting minimal CPU and GPU usage just by reading and browsing internet with chrome for a few mins. (May be brightness is set to 0)
4. I didnt see other applications such as facebook,whatsapp and so on ( you may have uninstalled them and even google play services)
For me, i didnt tweak anything about CPU or kernel. I just use official firmware, rooted and greenify only. Whenever i browse internet, i turn on 3G and then back to 2G with background applications such as viber, facebook,wechat with casuality and ease. My battery would last for a day with screen on time around 5 hrs and sometimes more than 5 hrs.
So my conclusion is your post doesn't intend for "Competition of Battery Life on Galaxy Note 3" . It should be a balance between battery life and users' accessibilty without limitations of the activities.
I appreciate your effort for this post but I dont mean to offend. I am sorry about my comment.
Click to expand...
Click to collapse
Now here's my clarification:
1. As I already said, I started monitoring from 85% after charging (see the pics)
2. I did put it on airplane mode for 10mins in the end. (Any person with just 2% battery will do)
3. Ya.... 3rd conclusion is true. I did everything ideal battery test guidelines as per GSMARENA. I even played a few games which didn't show up on the battery screen. Also, Whatsapp was on the whole time and my life is unimaginable without it.
4. My screen brightness was at 50% and 3g on for 4-5 hrs. I only use 3G.
Hope that classifies all your doubt. Will very soon post new battery results since the previous one was a bit controversial.
Many members of XDA are currently testing my settings and will soon give me the results. Thank you.
Sent from my amazing Exynos Note 3.

nice guide. thnaks

BiIIyTheKid said:
nice guide. thnaks
Click to expand...
Click to collapse
Thanks bro...... Any suggestions or any more tips?
Sent from my amazing Exynos Note 3.

Undervolting will make things unstable as I have heard. All I do is debloat and greenify.
That is with Facebook, Instagram on the background.
Sent from my SM-N9005 using XDA Free mobile app

Graffiti Exploit said:
Undervolting will make things unstable as I have heard. All I do is debloat and greenify.
That is with Facebook, Instagram on the background.
Sent from my SM-N9005 using XDA Free mobile app
Click to expand...
Click to collapse
See, undervolting my just a few mvs doesn't slow your phone down. That only happens when you under clock way more. By the way your phone seems quite good.
Sent from my amazing Exynos Note 3.

Guys...... New Scripts, tips and settings are soon coming..... Keep checking.....
Sent from my amazing Exynos Note 3.