yashsingh1/xdaforums huggingface dataset:
[Epic 4G General] styckx:
I have no idea what is killing my battery now. Went to bed last night. Put phone in airplane mode and killed all the apps, shut down drm and GPS was left on but not in use since all apps were shut down.

Went to bed at 73%, woke up 6hrs later at 43%. No wigets at all except battery watcher. LauncherPro is my launcher. Display was off. That is an atrocious battery lose.
[Epic 4G General] los1223:
Speaking of battery saving apps, have you tried JuiceDefender? It's gotten me a few more hours of battery life.
[Epic 4G General] schizopunk:
I havent yet, just because I don't know what settings to use for it.

Could you possible post the best settings I should be using?
[Epic 4G General] amdille:
I was super frustrated yesterday because I got about 7 hours of battery right after I had just installed the latest mixUP kernel, which was said to improve battery life.

Then I read up on the DRM service bug, so I charged back up, did the normal airplane mode on/off, killed the OmaDrmConfigService from Running Services and now my life is changed forever! On 3G I'm sitting at about 4-5% per hour battery usage with GPS on, which translates to ~20 hours of life. If you haven't tried that yet, it's at least worth a shot.

Sure, there are some other things about my setup (mixUP kernel, SetCPU profiles, 1 hour sync intervals on Facebook/Twitter/Weather) that may get me to that 20 hour number. However, those have been unchanged since I went from 7 to ~20 hours of battery life. It seems that killing the OmaDrm service is really what knocked down the battery usage for me.

EDIT: Also, no JuiceDefender on my phone. My data flows freely. So that makes my jump in numbers even more exciting for me!
[Epic 4G General] J3ff:
If I could get 1 day and 9 hours even using wifi that would be AWESOME! Please release that ROM!

Today, using wifi, my phone was DEAD at 4pm and I took it off the charger at 730am. I hardly freakin USED IT, maybe ONE 2 min phone call, ZERO texts and NO OTHER USE. In it's current form it's Totally USELESS.
[Epic 4G General] oranges311:
what is OmaDrmConfigService and how do i kill it?
[Epic 4G General] amdille:
Home > Menu Button > Settings > Applications > Running Services > Press OmaDrmConfigService and stop it

You'll need to do it each time your phone is turned completely off or the battery dies, or if you're rooted you can do this and get rid of it for good: [How] to remove the omadrmconfigservice.drm to get more battery life on epic
[Epic 4G General] DotMpeg:
I come from an G1 overclocked on CM6 so I had the worst battery before and this isn't even close.

Sent from my Epic 4G using the XDA App
[Epic 4G General] schizopunk:
I think I'm gonna have the ROM ready for Friday, October 1st, just doing a few more tests with it and adding some things.

I'm probably going to call it "Epic Creation" if I can't think of anything better.
[Epic 4G General] badasscat:
I can't find the original thread about the DRM thing now so I'll just say here that holy smokes! Turning off that crap worked a charm. I'm on 15 hours right now and my battery is still at around 50% (I'm just looking at the stock gauge so it's hard to tell exactly), and that's with heavy use all day long! Including GPS and navigation!

I'm sure this rom will be great but I feel like I no longer need it. I could probably make it through two days at this rate if I laid off the apps for a bit :)
[Epic 4G General] schizopunk:
Yeah once I read about that DRM thing I took it out of my ROM and wow. I can only imagine what my uptime will be now, haha.
[Epic 4G General] crajee16:
I'm new here, but just wanted to contribute. Was looking for aggregate list of advices to save battery life.

I've been reading through many of the threads here and here are some of the advice I've picked up to save battery life.

- Turned off auto sync

- Turned down brightness to the screen

- Turned off email check frequency to never

- Downloaded JuiceDefender and just running on the most basic mode; (does anyone know if this is the best app at saving your battery life or would you recommend something other app)

- Switch the Airplane mode on and off; but doesn't seem to keep TWS down all the time, maybe I did it wrong

Now, just included

- Killed OmaDrmConfigService; but noticed sometimes those programs restart by themselves

- And changed settings to keep Wifi from sleeping when the screen is blank; not quite sure how this helps preserve battery.

Also, just like schizopunk I would like to know what is the best setting for JuiceDefender.

If you guys have any other tips or advice on how to save battery life it would be greatly appreciated.

I'm running stock btw

Thanks
[Epic 4G General] styckx:
Holy crap! Removing all that DRM crap was a god send.

This is LIGHT use. Used at work a little browsing, streaming last.fm, then went home streaming last.fm the entire 30 minute ride, set it on the table before bed, woke up, checked email, browsed a few websites, send myself an email.

Before I would get like a 50% drop in battery life while I slept and the phone in standby just idling doing nothing. This is a MAJOR improvement.

No task killers (I use the built in android one), no juice defender, no SetCPU, never in airplane mode etc. I don't believe in them and still at 56% battery.

edit: I'd also advise any of you that have Slacker Radio installed to remove it. It LOVES to restart by itself even after you closed it.
[Epic 4G General] Coucher:
Epic battery life with the rom, I vote for calling it "Epic Life", or "Epic Experience"

:D
[Epic 4G General] schizopunk:
I like that, I'm probably gonna use that. Thanks!
[Epic 4G General] PokeAsheep:
I myself switched from a touch pro 1 which THE WORST battery life I've ever seen, I played around with the evo, which in my excessive-use-world didn't last til lunch time (constantly traveling, self imployed, etc etc) unless I constantly had it in the car dock.

Let's not get into the battery saving stuff I did for the TP1.

As it stands with the Epic I use it all morning, leave it plugged in, in the car while I run into my last client before lunch (hour charge), and the I am good to go. Same thing before dinner at 6, and the I plug it in when I go to bed (11pm-ish) (am up from 6am) No problem for me.

Personally after having the touch, tp1, trying evo and arriving at the epic, I don't see the huge deal...
[Epic 4G General] los1223:
I'm just using the stock settings for now. Haven't had time to research or try different settings yet.
[Epic 4G General] amdille:
Just curious, what are some of the details of your phone setup? Battery build date? Are you rooted? Did you switch to one of the custom kernels? Do you leave GPS on all the time?

My battery has definitely gotten better without the DRM stuff, but not like 56% after 14 hours better. That's awesome, and I want it! :) I was on WIFI all day yesterday and got 14 hours until death with moderate use. But it seems like you'd get at least a day and a half with that kind of use.
[Epic 4G General] styckx:
14hrs is good, you were probably using it more than I have. I'm on noobnl's andromeda kernel. Not talking down the other kernels out there but I love his the most. It doesn't try to do anything fancy and sticks to the basics while giving you root. The rest of the tweaking is in my hands.

Battery build date = 8/23/2010

I never leave GPS on unless I actually need to use it for something. Like I said, I had light use over the time frame.

My setup is pretty stock. Like I said I don't use any 3rd party task killers. I use the built in Android one. (hold home button) and after exiting any app I check if it's closed or not and END it if not. I don't use juice defender, or SetCPU either. Keep the brightness down low, just a smidge higher then the lowest setting. Power saving options are turned off also. Screen timeout = 1 minute.

I've used my phone a little more this morning and now at 19hrs with 37% battery left (about 5hrs since the last capture). That's about 4% an hour with some light to moderate use.

Before this, I couldn't make it past 9hrs with barely touching the phone and my battery would be dead by this time. So the DRM removal helped a lot, and not loading up the phone with battery saving and cpu throttling apps. I also think kicking Slacker Radio off here helped, but I can't prove that. It did like to restart on its own a lot though.

I'd imagine with a lot more heavier use I'd probably get a solid 10-12hrs (if not a little more) of use out of it. To me that's perfectly acceptable. 19hrs of light/normal use is outstanding in my book and I'll probably make it a full 24hrs by the time it's said and done.

edit: Forgot to mention. Background data on. All syncing = manual only. Also manually put the phone in standby if I know I won't use it again in less than a minute. No use wasting precious display power if you know you aren't going to use it. :)
[Epic 4G General] gophergun:
If possible, would the ones posting battery life screenshots post their display on time as well? That seems to be the major factor for me.
[Epic 4G General] schizopunk:
Mine is set to 15 seconds but I use screebl so basically when I'm using my phone the screen doesn't dim out when I'm using it.
[Epic 4G General] zeravla531:
I deleted all the DRM stuff but my phone goes into "won't sleep" mode after a few hours.

In other words i turn my phone on, it works great. Using spare parts i check the "time without sleeping" and it's like 15% or so.

Then without reason it doesn't go to sleep anymore. I'm not sure what's causing it to stay awake.

Any help?
[Epic 4G General] KL4V1CL3:
I'm noticing something similar, though can't say that removing the drm caused it.

Just checked in spare parts also, 97% time without sleep. Any idea what could be causing this? I'll probably end up reflashing later tonight and see if that does anything.

I'm running BakedSnack with the Mixup kernel.
[Epic 4G General] J3ff:
I got rid of my drm stuff.

With the DRM it lasted 5 hours till it turned off.

TOday I took it off the charger at 7am and here we are 11 hours later and it's DEAD.

I did NO internet, no texting and no calling. All I used it for all day was to read emails about 10 times.

What a horrible POS this phone is in stock form. I really hope the ROM's make me like this phone.
[Epic 4G General] ravizzle:
I get about 7 or 8 hrs of battery, but thatsb because I use pandora, text, and browse web a lot. Also I have live wallpaper, and bluetooth headphones for listening to music. I think that is very reasonable batt life considering how much I use it. I keep an extra battery with me so I'm good all day!

Sent from my Epic 4G
[Epic 4G General] styckx:
For battery testing, this isn't important to me when configuring the system to properly manage battery use. The screen is the easiest to manage. It's on or off, bright or dim. Not much to manage. It's going to eat battery on and bright, and not so much on and dim, or not at all off. So when battery testing, I try to not use it as much as possible.

Also what is easy to manage is what your doing when actually using it. Running apps drain battery, 3G use drains battery. Etc etc. Again. All easy to manage.

What's important to me in managing proper battery depletion is what it is doing when you're not using it and the screen is off. If your display is on 4% of the time, but your battery in dead in 9hrs from 100% charge after unplugging it, you still have an issue, and one that will kill it even faster with the display on. You virtually never used the device and something is killing the battery. (just a fictional scenario I made up here, but have had it happen and hear it happening to others)

This is how my screens look. This shows proper app management. Nothing but the essentials are running and minimal use at that. Which to me says no activity is taking place outside of what I'm asking it to do and for the system to stay "alive" when in standby, No rogue apps, no background data, no nothing. Just the essentials. I'll go in now and then and open a bunch of stuff, close it, end the tasks, and then let it chill in standby, rinse, repeat. About an hour of this time the screen was on. It's a solid foundation. Now I know any dramatic battery usage is either A. Something new I installed or B. I'm using it like a pig with brightness all the way up. :)
[Epic 4G General] KL4V1CL3:
I uninstalled media hub, problem seems to be solved. I'm now sitting at 15% time without sleep for the past few hours. I never planned on using it anyways.
[Epic 4G General] BrianDigital:


You can change you wifi sleep policy to never and uninstall that app
[Epic 4G General] schizopunk:
Yeah, I need to change my first post.
[Epic 4G General] zeravla531:
So any ideas on how the phone according to spare parts goes from running at around 10-15% to all of a sudden 90% when left on too long?

What causes the phone to stay "awake"?

Any ideas on what is running in the background to stop the phone from sleeping?

There anything i can delete to stop this?
[Epic 4G General] styckx:
When it wakes, check what apps are running then go from there, check partial wake usage and see what is near the top and using a lot usage.

I'm about done with my battery testing. Which proves if you have app management under control, your phone can sit in standby for well over a day and no need for SetCPU, super duper battery saving kernels, juice defenders, 3rd party task killers. Use the built in one and spare parts to monitor where your activity in standby is coming from and use the Android Task Manger to end open tasks.

Last shots. No way this is making it another 8hrs in standby while I'm asleep. :) I'm guessing I'll get another 4-5hrs in standby before the battery is drained.
[Epic 4G General] zeravla531:
styckx,

Ok, my phone kicked into "no sleep" mode like a couple of hours ago and running time jumped from 15% to now it's 60%.

Using ATK i closed every single possible app i can find, but it still remains "awake".

Checking partial usage i see that Android System has a big blue bar across 50% of the screen while everything else are slivers of blue.

The other apps show partial wakelock total time at minutes

Android System shows: 2 hours 48 minutes and 23 seconds.

It's been 6 hours since boot and the 2 hours and 48 minutes seems correct as to when the phone stopped sleeping.

What do you suggest?

Or what do you do exactly to get your phone running at 8.8% (sleeping properly)?

Thanks
[Epic 4G General] nmoreman:
I would like to add to the suggestion needed please.

I have been trying to tweak mine, drm and media hub stopped, and running no extra killers, management systems, etc. But battery life was wonderful, went to hell with update. I had changed so many things reading suggestions, no improvement, didn't know if I had screwed something else up, so hard reset yesterday to get back to basic. Don't want to root and put rom on, waiting for 2.2.

So could you give some exact settings to do what is working for you, ie Wifi in Advanced set to Never Sleep?? Use Task Manager and always kill tasks?

Screen on auto? Time?

Really the basic settings that are sometimes hard to find, I might have made a bad choice or no choice.

Our phones need naps!!!!!!!!!!
[Epic 4G General] jimmyz:
can you please elaborate on how you got sleep time so high- I literally unplugged my phone last night- when I woke up battery was dead!!! I have checked using spare parts and my "running time" is always 50%
[Epic 4G General] gophergun:
I just ask because it's a much more precise indicator of actual usage than saying light/medium/heavy use, IMO. If someone is getting 6 hours of battery life, it could be really good or really bad depending on how much of that time the phone is actually being used.

For the record, I was completely blown away by the battery life at stock. I was able to have it last for 16 hours with moderate usage (heh, hypocrisy is fun), which was especially incredible coming from my G1, which died after about 8 hours of minimal usage. I think the latest update may have changed that, though. Either that, or the battery is degrading really quickly, or I'm just holding it wrong. Just removed the DRM and tried the airplane mode fix, so I'll see how much that actually fixes when I go out later today.
[Epic 4G General] zetterwing:
So I've had the rough battery life that a lot of people are experiencing. I had done all the little things as I read about them and it seems I have finally found a great combination for me that has really improved battery life. To start I'm rooted with Mixup kernel running stock rom. I have disabled drm and media hub with Autostarts app. I also have wifi sleep mode set to never. My screen brightness is a few clicks above the minimum. I turned off auto sync and made my email never automatically check(yahoo) but still have the Gmail coming through. I have set a few profiles with SetCpu for when the screen is off as well as during charge but they aren't very aggressive...screen off is set at 800 max 600 min. Forgot to mention that I am running at a full 1.2 ghz the rest of the time.

The biggest factor came last night when I set wifi sleep to never though. Since then I have been running about 2-3% per hour with light use. Prior to that with all the other tweaks I was still running about 10% an hour.Of course if you don't have a wifi connection it is useless. This morning with 4+ hours since unplugged I am still at 89%. I'm sure it can be improved but for now that should help a lot.
[Epic 4G General] badasscat:
Well, my battery life continues to improve. Today I'm at about 8 hours and still on 100%! Obviously I know that's not really 100%, but the fact that the gauge hasn't moved at all is new and exciting! Usually by this time I'm down to around 2/3 on the gauge.

This is feeling like a charge I could probably stretch to 24 hours pretty easily...

This phone has no battery problem. What it has is a software problem.
[Epic 4G General] rufflez2010:
I'm getting really good battery life today,too. One weird thing though. Jus woke up from a nap with the phone saying no service and time without signal at 94%... but it couldn't be correct cause I was browsing on here before I noticed
[Epic 4G General] churro7:
when are you releasing this?
[Epic 4G General] schizopunk:
The ROM?

I'm releasing my ROM, Epic Experience, sometime tomorrow, I am in my finally phase of testing everything right now.
[Epic 4G General] badasscat:
My time without service is 0% today.

I'm now on 13 hours and still have what looks like about 90% of my battery gauge. This is unbelievable. The only thing different that I've done today is *not* use Advanced Task Killer. I just checked it and I have like 20 apps running. But whatever, if it ain't broke, don't fix it. I was getting worse battery life when I was playing whack-a-mole with these apps all day, so maybe it really is best to just let them do what they want. (Except for MediaHub.)
[Epic 4G General] churro7:
sweet cant wait to try this rom!!
[Epic 4G General] schizopunk:
Its looking really really good so far! I think you'll like it ;)
[Epic 4G General] schizopunk:
My ROM, Epic Experience, is now released!

Check out the thread here!
[Epic 4G General] nmoreman:
badasscat,

LOL - I decided I had my phone so screwed up turning off, turning on, and basically no idea what I was doing it to, I just hard reset - and I despise hard

resets.

Traded batteries, it was doing better yesterday with everything shut down, but the update came through this morning. I am having problems with MarketPlace, wouldn't download till I soft reset.

So I am going to do what you are doing, just let the little beasties run, see what happens today. If it sucks, shut down DRM, MediaHub, and GTalk (none of which I use). I checked with tech yesterday who has one, he has

all this crap running and is having no issues.

I have 10 more days. If shutting down isn't good, I'm going to trade phones.

If it maintains these levels with me having to manage everything to make phone usable, I have decided I am returning it. I'm not willing to pay an extra $490 over 2 years to have a 4g phone with no 4g service. I will go back to cheap rooted Hero and see what comes out for Christmas.

But you did make me laugh
[Epic 4G General] flyers2114:
Just FYI...........shutting down Gtalk may give you market issues......
[Epic 4G General] badasscat:
I do shut down DRM, just not the other stuff. DRM is the big killer. Nothing else seems to matter much. And shutting down stuff constantly seems to consume the battery more than letting them run.
[Epic 4G General] jocala:
3G

Is there anyway to shut down 3G other than enabling wifi?
[Epic 4G General] churro7:
dcs switch+
[Epic 4G General] jocala:
Is this an app? Doesn't show up in market search...
[Epic 4G General] akei1:
I use "quick settings" for free on the market. Added "mobile data" (3G) to the customizable list in the options. I turn that off with wifi and 4G when not in use. Been experiencing a lot better battery life than before.
[Epic 4G General] jocala:
Awesome! It's installed.
[Epic 4G General] DeltaTL6:
I did all the tweaks, though it's lasting about 12 hours. I have checked as someone suggested earlier, that spare parts indicate running time is at 100 percent since unplugged and 99 percent since boot. It's at 80 percent on total though.

Anyone can shine some light on this? This pretty much means my phone doesn't go to sleep at all!
[Epic 4G General] decalex:
Ditto to the last post. I'm rooted, removed all drm stuff and media hub, just updated modem only to DI18, and using andromeda kernel.. Phone doesn't sleep at all, 100% in spare parts. In partial wake,.it says partial wakelock: Android, and is also 100%. .. Just read thru the thread. is there anything concrete that we know is causing this?

Also, just checked tws, and it's 100%
[Epic 4G General] nmoreman:
Have either of you tried the airplane toggle idea? Turn it on, let it set, turn it back off. Give a few minutes and check to see if this starts down. Something is obviously stuck.

Search Running Time in these threads for other ideas.
[Epic 4G General] DeltaTL6:
The airplane toggle decreases TWS, time without service. Though I found that changing the Wifi Sleeping Policy to Never seems to help.

You can set it under Wireless and Network, Wifi, Advanced, then restart phone (don't know if the restarting is necessary, but for me, it didn't kick in until I do.)

My running time is now at 20% or so.
[Epic 4G General] J3ff:
To be Fair to the Epic (and all the people here who are fed up with me) it is doing MUCH better today. I'm not sure why as I really haven't changed anything on it and it's still 100% stock.

It has been 7.5 hours since I unplugged it this morning and I'm still at over 90% even with the GPS being turned on all day without me realizing it.

One weird thing is that I also JUST installed a battery monitor app and it says it's at 61% Hm.

IT has now been 10 hours or just about 10 and I'm at 75% battery. I really don't know what I did (I honestly didn't change anything) but usually I'd be at 20 or so percent after this long.
[Epic 4G General] flyers2114:
Honestly since stock DI18 update.......I have had the best battery life yet....I still have not tried a kernel or rom because of this....but I am about to now....I miss the speed of some of these kernels....and if it goes from 22 hours to 16....I can live with that:D
[Epic 4G General] styckx:
The only hurdle I wish we could jump is the slow charge issue. The phone charges fast if you don't use it but even though my battery life is fine now it takes forever to charge still while under moderate use. Under heavy use it's actually possible to discharge the battery while it's charging.

Sent from my wrist watch calculator
[Epic 4G General] jbadboy2007:
im getting 45 hours of battery life since di18 and galaxy rom and kernel, root, cwm, blue minimalism. no drm removed.