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Any tips for improving battery life?

I'm wondering if there's something I can do/change to get more time with continual use out of a full battery.
After 4 hours of web browsing, my battery is down to 40%.
I'm on cm7 7.1 with 6/30 kernel
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I have the brightness turned down really low and I've used the battery callibration app, a few times.
No problems with deep sleep- just looking to get more time from continual use.
Any ideas?

Do you run an auto-task killer app? Because if so you're trading very short term memory savings for a boat load of processor time. Ever since Froyo, and especially Gingerbread, Google made significant changes to the idle-memory allocation management and active-process management logic. All task-killers accomplish in 2.2+ is wasting processor time because 90% of the time android will immediately(depending on the app's historic use and prioritization) restart said app thinking there was some sort of critical failure. (you can check for your self, get the app "System info pro", and preform a kill. For the next 10-15 minutes you'll watch nearly all of the killed processes return to life, and re-assume their use of active/idle ram.
Example: You have 20% ram available, not idle mind you, and the app you've chosen to run needs 35%. First android will prioritize and organize all of the idle apps(which reside in idle ram, kind of like a really big stepping stone between oblivion and active status), and start purging from the bottom-up. Continuing till there's enough free'd memory to launch. Android also has the option of clearing/shrinking assets as a last resort before playing the guessing game as to which active apps aren't important. I don't exactly know what conditions need to be met in order for an app to achieve active(more-protected) status, rather than idle, but it's fairly good at figuring it out, or android wouldn't be so godly at multi-tasking.
A little long-winded comment, but I don't prefer giving advice and backing it up with because I said so logic.
TL;DR For 2.2+ don't use Auto-task killers, they gorge on your precious mA/hr's. Use something like "System info pro" or any comparable app to singly kill, or a pre-setup batch kill, apps as you experience issues.
Other than that, my only advice for battery life would be to not have apps you don't regularly use installed. If they're not installed they can't second-hand or tertiary-hand waste power.
In all reality, most if not all further battery/CPU efficiency increases will come from the hard work put in by Dalingrin/verygreen/murdok to increase hardware optimization for our version of android/kernel. (I know there's more key players, just can't think of them off hand)

Woot- I'm not using a task killer app, but thanks anyway for the info!
It sounds like people.are getting better results that I am with heavier use (videos, gaming, etc.) , so I'm trying to figure out where I'm going wrong.
Are there any settings that I can change that might help?
I'm more familiar with iPhone battery saving settings- where themes and push email eat lots of battery.
Is that the same case with android?
How much do widgets impact battery life? I don't think I have alot- but maybe there are some that eat more battery than others?

I know your first post said while web browsing but when you aren't using data you can turn off wifi to save power. Like when playing a game or watching a video from emmc/sd.

woot1524 said:
Other than that, my only advice for battery life would be to not have apps you don't regularly use installed. If they're not installed they can't second-hand or tertiary-hand waste power
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Click to collapse
Is there a way to find out which apps do this?

[potential FIX] Error on flashing grfs.img - Allocation

First off, I had to post here since I haven't made over 10 posts yet.
If you're getting a persistent allocation error when trying to flash the grfs.img (webtop) no matter what method, it might have to do with your computer lacking resources (not enough RAM).
Short of installing more RAM, you can try to increase your virtual memory (Control Panel>System>Advanced System Settings>Advanced tab> Performance (Settings)). My PC is only at 1GB of RAM, so I bumped my virtual memory up to 1522 (from 1024) and then restarted (to allow changes to take effect).
After it reboots, you should be able to flash the image. HOWEVER, IT WILL TAKE A LONG TIME TO DO SO MAKE SURE YOU HAVE A FULLY CHARGED BATTERY. The grfs.img is ~1.3GB so it takes some time for the system to handle it. It took over an hour for my machine to finish and you couldn't do anything else while it was trying to load the image. I recommend keeping the number of running programs to a minimum (sorry, no interwebs).
This allowed me to revert to a factory version of 886 and ultimately get to 901 rooted.
Hopefully this helps someone...

I killed my battery doing this.
I went to VZW and told them that their upgrade killed my battery (not a complete lie) and they gave me a new one. I restored the phone, charged the battery and completed the upgrade.

How long did it stay at the DOS prompt while trying to parse the image? Was the battery fully charged? If your battery only lasted an hour or two, then you had some underlying issues. When I finally got back up and running, I had between 60-70% left, and that's including flashing several other items after the webtop image.

Its posted in the right section anyway

5 stars. Thanks eluisve (Still searching for how to register a "Thanks" for the thread.)
Desktop is having I/O issues and my netbook was failing at unbricking my Droid Razr because of this error. I'd say I feel silly because I didn't grasp what was going wrong, but if we always grasped the obvious immediately, there'd be little use for support forums

Ram usage

Hey everyone.
I just got my 4x HD and i was wondering why i always have around 70% ram used on idle.
I checked in task manager and there was for around 200mb of services and apps running max, can't find where the other 400mb went.
Anyone knows if this is normal? How much ram does your phone use on average?

I agree with 700mb ram already used. But doesnt lag the phone though.

AW: Ram usage
its better when more ram is used. all the apps u used are stored in ram for quicker app start when run the app again. in other words: phone is faster when more ram is used. only if u hit the 1gb limit the phone would lag
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gordon0001 said:
its better when more ram is used. all the apps u used are stored in ram for quicker app start when run the app again. in other words: phone is faster when more ram is used. only if u hit the 1gb limit the phone would lag
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thats true, but i too have ram problem in my o4x,
it starts lagging and freezing after some time if memory is not cleared by any task manager. and at extreme it restarts the phone.
i haven't installed that much apps yet, i installed more apps in my HTC Explorer and that phone never did things like this but this phone has double ram and still doing strange things.
and i installed swapper to solve the problem but now i'm stuck on boot logo, any help appreciated.
and any help on my bricked phone is also appreciated at my post here, http://forum.xda-developers.com/showthread.php?t=2192894

still, my phone uses 800Megs of RAM and constant lag.

fyi every time someone complains that their Android phone is using a lot of RAM an angel loses its wings.

AlderCass said:
fyi every time someone complains that their Android phone is using a lot of RAM an angel loses its wings.
Click to expand...
Click to collapse
but.. but.. but how will the games work smooth if there's only 100megs ram free?
I understand that system/UI works faster when everything is loaded in ram... but i don't like apps in background sucking my battery. I've seen this clearly in Battery Monitor. When ram is clear it uses about 25mW (on idle), with stuff in background it's closer to 100mW or more... I don't like my phone eating battery 4 times faster on idle that it should.

_MiseryMachine_ said:
but.. but.. but how will the games work smooth if there's only 100megs ram free?
I understand that system/UI works faster when everything is loaded in ram... but i don't like apps in background sucking my battery. I've seen this clearly in Battery Monitor. When ram is clear it uses about 25mW (on idle), with stuff in background it's closer to 100mW or more... I don't like my phone eating battery 4 times faster on idle that it should.
Click to expand...
Click to collapse
Again, this isn't Windows, it's Android. Free RAM is wasted RAM. If it has only 100Mb free and you launch a heavy game, it'll promptly free the needed RAM by offloading the least used stuff it still has on RAM.
On the other hand, if you call that program you only use once a day, it's probably still in your RAM, and will open as if you've only just used it (well, almost).
The used RAM isn't necessarily active, so not all the apps stored there are sucking battery. Your test results are accurate, but your conclusions are fallacious: yes, there's less battery usage when the RAM is clearest, but, as they say, "you've thrown out the baby with the bathwater", i.e. when unloading ALL apps, you also unloaded the ones that were consuming battery. On the other hand, you've also thrown out stuff that were just kept in memory, but weren't active.
The other problem with your approach is that, after you unload ALL apps, the most troublesome ones will probably reload themselves back into RAM. So, even if right after freeing RAM you reduce your battery usage, a few minutes later it will be back to the same.
What you should do is get a program like BetterBateryStats and find out what's actually sucking your battery. When it does, you have a few alternatives:
- uninstall apps that are sucking your battery but you just don't need;
- greenify some of the apps that you do need, just not all the time;
- freeze some apps (with Titanium Backup) that you don't use but can't uninstall.

i tend to disagree with people saying free ram is wasted ram and preloading apps in ram is good and that for this simple reason.
everytime you start a app that is not preloaded (it can only preload so many apps) it has to use cpu time to unload it then load the next app resulting in extra cpu usage = less battery time.
many people complain about battery life except me.
and i really manage my phones resources all day long and have nsane results noone else seems to get.
i have over 5 hours 30 min screen on time (me browsing watching youtube using whatsapp and so on.) and have over 630 mb ram free.
my total stanby time on lght use is 5 days with 2 hours 30 min screen on time.
i would send screenshots as proof but for some reason the lg 4x hd bluetooth wont install on windows 7 x64.
but really since i starte to actively manage my phone the battery lasts longer and i never had a stutter or anything.
and as a sidenote my phone is stil unrooted and stock v10h so with root i could prevent even mre from starting up and have even more free ram and better results.
and yes the poster above me is right some apps will reload themselves so IF you use a task killed prevent it from killing tasks that start themselves up again.
like google partner setup , media and more google stuff.

hutjeflut said:
i tend to disagree with people saying free ram is wasted ram and preloading apps in ram is good and that for this simple reason.
everytime you start a app that is not preloaded (it can only preload so many apps) it has to use cpu time to unload it then load the next app resulting in extra cpu usage = less battery time.
many people complain about battery life except me.
and i really manage my phones resources all day long and have nsane results noone else seems to get.
i have over 5 hours 30 min screen on time (me browsing watching youtube using whatsapp and so on.) and have over 630 mb ram free.
my total stanby time on lght use is 5 days with 2 hours 30 min screen on time.
i would send screenshots as proof but for some reason the lg 4x hd bluetooth wont install on windows 7 x64.
but really since i starte to actively manage my phone the battery lasts longer and i never had a stutter or anything.
and as a sidenote my phone is stil unrooted and stock v10h so with root i could prevent even mre from starting up and have even more free ram and better results.
and yes the poster above me is right some apps will reload themselves so IF you use a task killed prevent it from killing tasks that start themselves up again.
like google partner setup , media and more google stuff.
Click to expand...
Click to collapse
I had that problem when I installed the first leaked V20A, now with the official V20A EUR_XXX bluetooth is working fine, faster tranfears than with ICS.

help
I have problems, too. My o4x is working about 2.5 years but im very angry because of the ram usage problem. The ram is always %70-80. And the phone is very very very... slow. If the cpu is works %80, what can i do ? The battery is finishing very early. I dont wanna new phone. Im not rich. I dont want to buy a new iPhone. Everyone say "The iPhone (ios) is the best. Android is the worst. Bla bla bla.. " And I believe this... PLEASE HELP ME (( :crying:

[Q] Can't find a file (Media) that's killing my battery

I did the Towelroot, but my battery usage is absolutely gone to pot.
I checked under battery usage, and it shows a file named "Media" that is using almost 50% of my battery. I can literally see the battery percentage drop 10% in 1 hour - with no usage. I can actually see it dropping before my eyes. Otherwise, the other functions are working great.
I installed Titanium Pro to freeze some bloatware, and at the bottom, I can see two files that are greyed out with lines through them. "Media" is one of them. The other is imsqmisocket. I didn't delete these or freeze them, but they appear to be removed from my system. When I click on them in Titanium Pro; I have no option to restore, or undelete. The imsqmisocket doesn't seem to be listed at all under battery usage.
Any ideas about what "Media" is, how it may have been deleted / frozen, and why it's drawing so much battery usage? I haven't been using ANY media type functions, but it's gobbling up my battery.
The rest of the battery usage seems normal for other applications / usage.
Thanks for any help.
Edited to reflect: In all fairness; the battery issue existed before the root. I'm just trying to resurrect this $700.00 paperweight. I just didn't think it was that bad!

have you loaded any app that can provide wakelock info? that's the best way to identify what app it is.

Wasn't there a problem in the Samsung tab 2 under stock that when the external SD card got corrupted it constantly attempted to scan the card for media consequently destroying the card and killing the battery? Maybe that's what is going on here
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[Q] Poor RAM + Battery Drain

First of all I would like to say that I have searched the forums and Google but to no avail. Hence I am starting this thread.
First of all the RAM, the free RAM on 4.3 (stock .205) is awful, sometimes I am down to about 70mb even after a clean boot I have around 250-300mb free. This is ****, my 2011 Xperia had better RAM management. Is there anything that can be done to fix this or does anyone know what uses so much RAM (I have de-bloated the ROM and have minimal apps, none of which eat significant RAM).
Secondly battery drain, whenever the alarm (stock Sony app) is on I get horrible battery drain and the android os uses excess mobile data which causes the battery drain (device never deep sleeps). It is a very annoying issue that I haven't been able to fix, I typically lose between 23%-30% over night at a rate of ~3% per hour.
What do you guys think? Any suggestions?
Any input is appreciated.

ShinOrochiX said:
First of all I would like to say that I have searched the forums and Google but to no avail. Hence I am starting this thread.
First of all the RAM, the free RAM on 4.3 (stock .205) is awful, sometimes I am down to about 70mb even after a clean boot I have around 250-300mb free. This is ****, my 2011 Xperia had better RAM management. Is there anything that can be done to fix this or does anyone know what uses so much RAM (I have de-bloated the ROM and have minimal apps, none of which eat significant RAM).
Secondly battery drain, whenever the alarm (stock Sony app) is on I get horrible battery drain and the android os uses excess mobile data which causes the battery drain (device never deep sleeps). It is a very annoying issue that I haven't been able to fix, I typically lose between 23%-30% over night at a rate of ~3% per hour.
What do you guys think? Any suggestions?
Any input is appreciated.
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Click to collapse
Wow, free RAM under 70 mb maybe u should check all of your running apps, each apps have a different memory usage and there is one app with much memory usage, and as we know, the bloatware is also use the memory even though they are not using it. When i'm on stock, i had never get free RAM under 150 mb, my phone is rooted and i'm using root uninstaller app to freeze some bloatware apps and uninstall them :good:

ShinOrochiX said:
First of all I would like to say that I have searched the forums and Google but to no avail. Hence I am starting this thread.
First of all the RAM, the free RAM on 4.3 (stock .205) is awful, sometimes I am down to about 70mb even after a clean boot I have around 250-300mb free. This is ****, my 2011 Xperia had better RAM management. Is there anything that can be done to fix this or does anyone know what uses so much RAM (I have de-bloated the ROM and have minimal apps, none of which eat significant RAM).
Secondly battery drain, whenever the alarm (stock Sony app) is on I get horrible battery drain and the android os uses excess mobile data which causes the battery drain (device never deep sleeps). It is a very annoying issue that I haven't been able to fix, I typically lose between 23%-30% over night at a rate of ~3% per hour.
What do you guys think? Any suggestions?
Any input is appreciated.
Click to expand...
Click to collapse
The RAM issue is a pretty common issue with our SP.
You can try some different custom ROMs in the development thread (Out of the ones I've tried OmniRom seems to have the most free RAM so far). Also, if you have root and you don'y want to remain on the stock ROM, try using Greenify for apps you don't want to constantly run.
WLD (wakelock detector) is another app you can install to see what apps are misbehaving and destroying your battery life

itsjustbob said:
The RAM issue is a pretty common issue with our SP.
You can try some different custom ROMs in the development thread (Out of the ones I've tried OmniRom seems to have the most free RAM so far). Also, if you have root and you don'y want to remain on the stock ROM, try using Greenify for apps you don't want to constantly run.
WLD (wakelock detector) is another app you can install to see what apps are misbehaving and destroying your battery life
Click to expand...
Click to collapse
Yeah, I tried some ROMs, including eXistenZ but to no avail. As for the battery issue it has something to do with the alarm/google play services/android os, but the funny thing is that eXistenZ does not have the battery drain.

You might check what xposed framework can bring you. Has some nice add-ons to handle wakelocks in a better (w.r.t battery life) way
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