yashsingh1/xdaforums huggingface dataset:
[Samsung Epic 4G Touch] MiguelHogue:
In that screen shot click screen to see screen on time use

*Well the screen shot from that post

-TeaM VeNuM Like A Boss
[Samsung Epic 4G Touch] BluesRulez:
OP updated.

-*TheCollective* AoCP - CP2 pics
[Samsung Epic 4G Touch] PlatinumNick:
I dont think anybody did the Universe ROM yet im hearing good battery life about that rom
[Samsung Epic 4G Touch] ttittoo:
Hey Blues, few questions.

When you test battery do you put brightness all the way down?

Do you let the rom/kernel settle? If so, for how long?

Do you change settings like auto-sync, vibrate/sound on tap?

Do you know if most of the roms you test run on the ondemand governor?

Sorry for all the questions. I want to know how I should test battery on these.
[Samsung Epic 4G Touch] BluesRulez:
No governors are changed except for jb roms which are all on pegas governor. No tap sounds etc. They lead to audio out wake locks. Brightness auto. Never sync. First run is usually where I restore my backup and let the cache build up/settle.
[Samsung Epic 4G Touch] ttittoo:
Will be testing LightWeight rom cause it is giving me good battery so far. Will post screenies.
[Samsung Epic 4G Touch] 1brainsurgeon:
Love what you've done with the place! I'm glad it was you who took over. Great job!

Sent from my SPH-L710 using Xparent SkyBlue Tapatalk 2
[Samsung Epic 4G Touch] BluesRulez:
Haha. Thanks.

BTW I have updated pics for PA 2.50. I was pleasantly surprised.
[Samsung Epic 4G Touch] 1brainsurgeon:
Right on. I've since moved on to the S3. Still have the E4GT, but my fiance is using it. In school full time, or I'd start another one of these for the S3 and Note 2.

Sent from my SPH-L710 using Xparent SkyBlue Tapatalk 2
[Samsung Epic 4G Touch] BluesRulez:
OP updated

-New rom(kinda late :p) ReTurN oF ThE LivinG ReJeCTz(rom)FI03 DREAM TEAM

-PA Screens updated.

Post 2:-

Tips added.
[Samsung Epic 4G Touch] mjs2011:
Alright Blues, after all of your testing, which Rom do you feel gives they best mix of battery life and performance?
[Samsung Epic 4G Touch] BluesRulez:
What are you looking in a rom when you say performance?
[Samsung Epic 4G Touch] mjs2011:
Not necessarily looking for a Rom to break speed records. Looking for overall smoothness and stability.

Basically, what Rom would you use as your DD if you aren't so busy testing? ;)
[Samsung Epic 4G Touch] BluesRulez:
I have a dd! I have 2 nands. Recalked and lightweight. I am thinking hard about pa 2.50 but the wonky battery fears me. What if it drains and doesn't climb back up? Lol
[Samsung Epic 4G Touch] mjs2011:
Lol. Sounds like we are on the same page.
[Samsung Epic 4G Touch] ttittoo:
Haha I have the same nands as you. Currently on M'ICS though, it's fantastic. Awsome theming, amazing battery life on Governors kernel, and it's now odex! When that red theme for LightWeight comes out I will definitely give it a try. Red is my favorite color :D
[Samsung Epic 4G Touch] roadlust:
Stock FH13 ICS (Touchwiz) vs. JB

Yeah, I've tried both ICS and JB custom roms (including Joyride CNA and latest Universe ICS) and battery life was simply no comparison. I can go overnight without recharging if necessary on my stock, rooted, FH13 (at least 18 hours and up to 20+) versus the maybe 5 hours on CNA JB and 6-7 on Universe ICS with the same usage pattern.

I think it's pretty clear that the stock set-ups (especially tweaked) are the way to go if you are really interested in long battery life.

Of course, that's no fun. Unless you get into tweaking the stock ui.

At this point I'm wondering if one of the reasons Sprint/Samsung has been so slow to release JB is the embarrassing battery usage. I'm still hoping for an official release of JB, because I love the look and feel, and it does offer way more options than ICS, but I will remain skeptical that any build of JB will be able beat ICS (or GB) for pure battery life until I see it with my own eyes.

---------- Post added at 09:25 AM ---------- Previous post was at 09:15 AM ----------

I didn't save a screen shot of the battery life, but I was only getting slightly better battery life with latest Universe build (about 6 hours) than the Joyride CNA Jelly Bean. And of course, the Jelly Bean is way more fun to play with if that's what you want to do with your phone. You're going to have to constantly keep a "finding a charger" in the back of your mind with CNA or Universe if you're on the go for more than a couple hours and are nervous about carrying around a dead phone. If you can get over that, they're both fine, stable ROMs. (The simple answer is Universe gets better battery life than CNA JB, but it's ICS and not JB).
[Samsung Epic 4G Touch] BluesRulez:
6 hours is too low. Can you use some battery monitor app from post 1 and see why so low?
[Samsung Epic 4G Touch] BluesRulez:
OP Updated

-M'ICS Pics added.
[Samsung Epic 4G Touch] neodorian:
This is not an issue with JB. It is because without kernel source (or an official JB kernel built for e4gt) our devs can't ever optimize a ROM. Once an official JB for this handset comes out people will be able to use that kernel but for now we are making do with patched together bits of others.
[Samsung Epic 4G Touch] daevion0:
Can someone with cm10,cm9, out sb jellybean tell me what kind of battery life you are getting?
[Samsung Epic 4G Touch] duce415:
I posted some screenies in the Cm9 thread from my recent use... on cm9 beta1 I would get consistently 10 hours of life with 2+ hours of screen on time... the performance was great but coulfbt crack that 10 hours for nothing... so I'm back on caulks 3.0 until I decided which from to flash . (thinking tbags rom or wait for an official ics/jb rom...
[Samsung Epic 4G Touch] duce415:
I hate that I flash roms so much ha ha ha.. can never figure out which one to stay on.. on p.a. 2.50 right now.. thinking bout going back to cm9 or caulks 3.0.. wanting to try the one click but don't want to mess up my phone... planning on getting the note 2.. just a lot going on .. thanks again blues for testing all these roms.....
[Samsung Epic 4G Touch] daevion0:
Which rom has the best battery life so far?
[Samsung Epic 4G Touch] BluesRulez:
Decide for yourself looking at the screenshots in OP. Ymmv as always though.
[Samsung Epic 4G Touch] fiernaq:
Finally... this one took forever to finally run out of juice. 3 days, 8 hours, and 25 minutes just to hit 4%.

LightWeight 0.2 4.0.4 ICS powered by Agat's 0.6.5 FI27 kernel and the FI27 modem. Running Atom Launcher, ZDbox, System Tuner, Battery Mix, Placebo 2.0, and a variety of personal apps. Didn't mess with performance or battery saving options very much other than to activate gear 3 on placebo, turn screen brightness down to 30%, and keep apps killed after using with ZDbox. Based on the information I've gathered I'm hoping to get rid of ZDbox and Battery Mix because both use a considerable amount of system resources for what they provide (although they are both very good apps that provide a lot of useful info for someone doing testing). I didn't even notice till I was taking the screenshots that I was on the hyper governor... thought this whole time that I was using ondemand or pegasusq so I wonder how much of a difference that made. Near the end of my testing period I was getting bored so I activated 3g and started using remote desktop and running speedtest and you'll notice the sheer drop off in battery just from having 3g activated so I'll definitely try to avoid turning that on any more than necessary... especially when I have perfectly good wifi almost everywhere I go. I would be interested in finding out if anyone knows of any tweaks to help minimize battery usage of 3g.
[Samsung Epic 4G Touch] FC809:
So are you saying that on demand and pegasusq are suppose to give you better battery life then hyper? I been trying to switch governors everyday to see which gives the best battery life. Well yesterday I had pegasusq which gave me about 15 hours with about 3 hours screen time (14% power left), and today I switched to hyper and it feels like my battery has been the same or even a bit better.

Edit: also I have conservative activate after my battery hits 30%.
[Samsung Epic 4G Touch] fiernaq:
I honestly don't know much about phones. Just from browsing the forums I've learned that most people seem to like either ondemand or pegasusq the best but I haven't even heard about hyper or any of the half dozen other governors there are with system tuner nor do I know what's different about any of them. Trial and error is my game and all I can do is keep trying more (which I love doing :D) in hopes of finding an even better one.

I did not have the 30% power saving mode enabled but as you can probably see from my screenshots I was pretty conservative even without it. I had display set pretty low the entire time and even though I have a 2 min auto-off on the screen I usually (95% of the time) manually turn my phone off with the power button as soon as I'm done using it. I also leave wifi, 3g, 4g, gps, and bt off most of the time, only activating them when I need to use them (except for the one night I forgot to turn wifi off). I also have a hard time getting 4 hours of screen time because I just don't use the phone that often.
[Samsung Epic 4G Touch] FC809:
I think I should start doing that with 3g and WiFi. Its not like I'm using it all the time, so I should just turn it off and save battery. I dont think I can be as conservative as you though lol.
[Samsung Epic 4G Touch] FC809:
OK well the majority of my partial wake locks are audio_out, but I disabled lock sounds, and all that stuff. So I dont get why its causing the most wake locks?
[Samsung Epic 4G Touch] BluesRulez:
Listening music also creates those.
[Samsung Epic 4G Touch] FC809:
I haven't listened to music the whole day though? Well I guess I'll force close play music to see if that makes a difference. Would for some reason the keyboard sounds cause wake locks? Idk why it would but just trying to make sure.
[Samsung Epic 4G Touch] BluesRulez:
Yes they could create too.
[Samsung Epic 4G Touch] romgnascher:
Re-Calked 0.2.1 - 24+ hrs with 3.5+ hrs screen time

Just thought I'd share the performance I've been enjoying with Re-Calked. The only performance-related change I've made from a default install is switch to Pegasusq.

This is WiFi on 100%, as well as bluetooth and GPS enabled (though not used). I can get this kind of performance if I remain in an area with good cell signal. At my office where I typically get 0-2 bars, I probably get about half this level of battery life.
[Samsung Epic 4G Touch] fcjr77:
Hello Blues. Here are my screen shots on my battery after a couple of hours. I am loosing some times up to 15 to 20 percent an hour with low usage. I have also noticed that some times my battery runs hot almost to the point of not wanting to hold it. I am running CM10 11/05 nightly from PhantomPhreak. I made some of the adjustments you mention in OP, but am still loosing battery fast. Any thoughts would be greatly appreciated.
[Samsung Epic 4G Touch] BluesRulez:
If battery is hot to touch, that's not good. Take it out and spin it in flat surface. If it keeps spinning freely, that's a bad battery. Also can you get a screen shot of kernel wake locks in BBS?
[Samsung Epic 4G Touch] FC809:
Holy crap nice. So pegasusq is giving you better battery life than the stock governor?
[Samsung Epic 4G Touch] fcjr77:
Sent from my GT-P3113 using xdia app-developers app

I took the battery out and it did spin. So I need a new battery? Here are the pictures of the kernel wake locks.
[Samsung Epic 4G Touch] romgnascher:
This ROM comes stock with the conservative governor. I did get decent performance with that, but it didn't seem to like to sleep much. Then I tried smartass2. It slept more, but seemed a little laggy. Especially the capacitive buttons.

Pegasusq leaves the device feeling very responsive, and it sleeps like a little baby.

On the stock ROM, I would rip through like 8-10%/hr with very light use. There were times with this last run where it was only pulling 1 or 2. If I were to be extra conservative, i bet I could get 40 hrs without too much trouble.
[Samsung Epic 4G Touch] BluesRulez:
Wake locks look OK. Everything points to a likely bad battery. Go to a sprint store and get it replaced.
[Samsung Epic 4G Touch] fcjr77:
Being that I am rooted would they still replace the battery?
[Samsung Epic 4G Touch] BluesRulez:
Just create a nandroid backup and then unroot.
[Samsung Epic 4G Touch] fcjr77:
Will do thanks again.
[Samsung Epic 4G Touch] fcjr77:
So I woke up this morning and noticed that something kept my phone up all night. I thought maybe it was something I did, so I have been running it this morning and found out that something is still keeping it awake. Here are the screenshots from my phone. What is keeping it from going in to deep sleep? Thanks.
[Samsung Epic 4G Touch] BluesRulez:
Can you post screen shots for kernel wake locks and partial wake locks? From what you provided, google maps is the culprit.
[Samsung Epic 4G Touch] FC809:
Hey blue, what's deleted_wake_locks?
[Samsung Epic 4G Touch] BluesRulez:
Here it explains it. https://github.com/asksven/BetterBatteryStats-Knowledge-Base/wiki/deleted_wake_locks

When they showup, I just reboot and it goes away.
[Samsung Epic 4G Touch] fcjr77:
Here is the Kernel wakelocks. Thanks.
[Samsung Epic 4G Touch] BluesRulez:
Click on those question marks for explanation about the wake locks. I already linked what deletedwakelocks mean. Suspend back off is due to Google chrome. I avoid chrome for this reason. Both bad.

Wake locks explained here - https://github.com/asksven/BetterBatteryStats-Knowledge-Base/wiki/_pages
[Samsung Epic 4G Touch] fcjr77:
I read that you can go under the partial wakelocks to see what is running the power manager service and I noticed that it is showing that Media Scanner services is running a high amount. Do you know what that is?
[Samsung Epic 4G Touch] TrayLunch:
I'm trying to figure this one out. Seems to be happening more and more lately. At no point did I hook up to a charger during these fluctuations.

EDIT: The Gsam and BBS screenies were taken before my phone started rebooting.

EDIT: Nevermind. Bulging battery. Any replacement suggestions? Phone is over a year old, so no more warrenty.

Elite Tester for Mijjz Goodness
[Samsung Epic 4G Touch] FC809:
Just wanted to share my battery life on the blue kuban. Underclocked to 1 ghz, and undervolted -25. On the Pegasusq governor with placebo 2.0(which I have no idea what it does just flashed it for the hell of it)
[Samsung Epic 4G Touch] BluesRulez:
Tray, I would just get one from sprint.

There is a kms.apk somewhere in the cm10 alpha 5.3 thread. It will kill media server. Do you use google play music? I heard that's the cause because the phone keeps looking for something which is not there.
[Samsung Epic 4G Touch] TrayLunch:
Looked into that option. Local store doesn't sell them and will only order one if it's under warrenty. Sprint customer care said about the same. Ordered a 2X + charger package off of Amazon that had some really good reviews. Now the wife will have one when hers goes south.

Elite Tester for Mijjz Goodness
[Samsung Epic 4G Touch] BluesRulez:
Yeah.. Looking at all bulging batteries, I got a second stock battery couple months ago and a wall charger so I use them both daily. Distribute the load.. My phone is only 10 months old.
[Samsung Epic 4G Touch] BluesRulez:
Op updated

-Added screenshots and updated link for CM10.
[Samsung Epic 4G Touch] fcjr77:
I do use Google Play music, because I couldn't get Google Reader to work until I downloaded Google Play Music. I also have music from Google that I bought, so it there a way to not use Google Play music and still have my music through them on my phone?
[Samsung Epic 4G Touch] smartguy10:
This is a good post will see how can I improve my battery life on paranoid
[Samsung Epic 4G Touch] SASQUATCH:
Running cm10 11/14 nightly pegasusq undervolted to 1mhz

Loosing about 14-15% battery overnight while sleeping. The only thing bad i see is the kernel using most of the battery. What can i do.
[Samsung Epic 4G Touch] SASQUATCH:
The other gsam pic is the wrong one
[Samsung Epic 4G Touch] BluesRulez:
What are the kernel wake locks from betterbatterystats?
[Samsung Epic 4G Touch] SASQUATCH:
Thats were i messed up and forgot to take screenshot i guess ill wait till tomorrow morning and post a pic of that.
[Samsung Epic 4G Touch] calisro:
now this rom rocks. pa 2.53 built off cm beta 2 source. I know I'm missing the screenie of the rom at 100% but figured id share anyway. great rom! No tweaks besides keeping the screen dim, using autostarts app to stop apps from running rampant, i undervolt slightly but doubt that helps much, and i freeze facebook, and turn off google location services. Easy peasy.
[Samsung Epic 4G Touch] ankurcshah:
Heres me on the light weight 0.3 kuban's Kernel..sorry but i forgot to take screenies at 100%
[Samsung Epic 4G Touch] duce415:
Been trying out all these different roms and i keep going back to calkulins 3.0.. Ics is giving me reboots randomly and battery sucks on jb... Think imma just wait til one of these roms are a final ...
[Samsung Epic 4G Touch] BluesRulez:
Battery on cm10 beta is not that bad. Give it another go.
[Samsung Epic 4G Touch] duce415:
Got cha blues... Downloading it now.. Thanks again
[Samsung Epic 4G Touch] toobz:
Getting a high battery drain from kernel on blazer 4.1. Any idea what could remedy this? I tried gunslinger and stock kernels and it's still really high
[Samsung Epic 4G Touch] BluesRulez:
Post the screenshots of kernel and partial wakelocks using batter battery stats. App is linked in OP.
[Samsung Epic 4G Touch] toobz:
Oops sorry
[Samsung Epic 4G Touch] BluesRulez:
I have not gotten event log service wake lock. So not too sure but I read couple places on xda that very low signal is causing that.

Deleted wake lock can be rid of by rebooting.

Honestly your stats look good.
[Samsung Epic 4G Touch] toobz:
Those are with a qcell 4100mah battery though o.O
[Samsung Epic 4G Touch] smartguy10:
I agree with recalked having the best battery life. Got 8hrs already with still 50% left to go . Didn't had that much luck with JB roms ..
[Samsung Epic 4G Touch] :
So... this is my CM10 Beta 2 instalation after 2 full cycles. I feel that it falls short compared to what other are getting here and to what I used to get with PhantomBlazer rom
[Samsung Epic 4G Touch] BluesRulez:
Google maps keeps waking your phone up even when you are sleeping causing wlan_rx_wake and google network passive locator wake locks. Go into maps settings and turn off location tracking.
[Samsung Epic 4G Touch] FC809:
You are probably getting bad life because of having turned on location services.
[Samsung Epic 4G Touch] :
would setting up tasker to turn off GPS (maps, navigation, google now, etc..) unless certain apps are launched helps?
[Samsung Epic 4G Touch] BluesRulez:
I have not used that app but try and see what happens.
[Samsung Epic 4G Touch] calisro:
Do you have screen on 100% brightness? I keep mine dim. Also you just installed the rom. Do you have a lot of photos and stuff syncing where it may get better after all the initial syncs are complete?
[Samsung Epic 4G Touch] :
Screen is in "auto", about the syncing... I think it finished but I will tweak the locations settings with Tasker, wait a week and come back with new screenshots.
[Samsung Epic 4G Touch] ttittoo:
LightWeight 0.4. As you can see I did not underclock and I also did not undervolt. Best battery life yet. What would I get if I did do those things :eek:;) !!!
[Samsung Epic 4G Touch] calisro:
sync enabled? airplane mode? stock battery?
[Samsung Epic 4G Touch] ttittoo:
Sync disabled, I did not use airplane mode, and yes I got a new battery from sprint. Mine was bad so they gave me a new, free battery

Edit: I used placebo shift 3, auto brightness, and most of the time I was on wifi. I also disabled location because that thing KILLS! my battery.
[Samsung Epic 4G Touch] im0rtalz:
I'm pretty sure it's JuiceDefender, turning off data, wifi when screen is off. It would be nice if there was a way to enable this natively in android.
[Samsung Epic 4G Touch] ttittoo:
Ya I agree, it would be much better. I am using Better Wifi On/Off to control wifi though, because it does a better job. Juice Defender (I have the free version) only disables my data and it does a good job as you can see.

Whatever works!!!:victory:
[Samsung Epic 4G Touch] :
So.. I decided to roll back to a CM based ROM and gave a test to re-calked ROM, so far battery life is absurdly great, wifi, GPS, location services, everything is on, this is my firs cycle so I expect this to get better in a couple of days.
[Samsung Epic 4G Touch] FC809:
This is my battery on the newest leak. Granted I didn't really get to use my phone to much, but it looks like battery life will be relatively good.
[Samsung Epic 4G Touch] euphoria:
did you have sync on or off?
[Samsung Epic 4G Touch] TrayLunch:
I'm seeing similar results with sync on. I don't sync everything though. Just contacts and gmail. I have my other emails set to sync every 30 min during peak times and every hour during off peak times.

Elite Tester for Mijjz Goodness
[Samsung Epic 4G Touch] ankurcshah:
On Dan's deodexed fk23. Battery is turning out better after every discharge
[Samsung Epic 4G Touch] FC809:
Contacts, internet, chrome, and gmail syncing. I have a hot mail account polling every 4 hours. I also have Facebook refreshing every hour, and facebook contact syncing once a day.
[Samsung Epic 4G Touch] movetwice:
Agreed FK23 is amazing for battery life.

IMGUR Links (also attached):

http://i.imgur.com/dYQUi.png

http://i.imgur.com/LGBkH.png

http://i.imgur.com/4FAoB.png
[Samsung Epic 4G Touch] romgnascher:
Another data point for FK23

I've just finished my third cycle on FK23.

I'm still on the original tar, rooted via the method posted by Mattix: http://xdaforums.com/showthread.php?t=1999417

Long story short ... a little over 25 hrs, still had 8% left. Sleeping like a baby, awesome 4g speeds ... what more could you ask for?

I am letting gmail, contacts, picasa, etc... sync at will. Disabled location updating in gmaps. Using Apex launcher, and Beautiful Widgets weather and time, updating every 4-hrs and on unlock. WiFi, GPS, Bluetooth all enabled the whole time. Other than that, no special considerations to get great life. Just using the phone as I would any other day.
[Samsung Epic 4G Touch] calisro:
those are pretty amazing battery life... I'd hate to leave CM10 but that is impressive.
[Samsung Epic 4G Touch] TrayLunch:
This is not entirely on topic. Sorry for that, but it is relevant.

That's the difference between something that is ported over/built from source, and something specifically designed for the device by the manufacturer. CM10 is great, but it's kind of a blanket, of sorts, for all devices that has been patch worked to run on this device. This is tailor made to run this hardware, so you're bound to see better performance and battery life.

I would have really liked to have seen Samsung include the stock launcher as well, but it's nothing you can't download from the play store. They really outdid themselves with JB for this phone.

Elite Tester for Mijjz Goodness
[Samsung Epic 4G Touch] calisro:
I know the difference between a port, built from source, and oem but that doesn't coorelate to better or worse performance or battery.
[Samsung Epic 4G Touch] Grub4dos:
Forgot these...
[Samsung Epic 4G Touch] romgnascher:
Looks like you were on Wi-Fi for that speed test. You also didn't tell us what ROM you are using.
[Samsung Epic 4G Touch] Grub4dos:
Doh I was on wifi... Sorry.

TOUCHED BY an SSG3 rom.
[Samsung Epic 4G Touch] SASQUATCH:
Running fk23 stock rooted battery draining pretty fast. Checked bbs nothing unusual no kernel or partial wakeclocks. Then checked gsam and saw this is it normal?