Develop Bugs

Tips on Improving Battery Life and Speed

I see lots of posts around the Interwebs complaining about battery life on smartphones (specifically Android ones, since I don't hang out on sites that are aligned with evil Apple), so I decided to consolidate my knowledge for people with Slide's to improve their battery life.
DISPLAY
This uses about 80% of the power according to battery use on auto-brightness. On a bright day I can read the screen at about 1/5 position on the brightness bar which cuts down heavily on the battery use.
There's not much else we can do to cut down on screen power usage, so moving on.
CPU
This one requires SetCPU, I strongly urge you to buy it from the Market (it's just a few bucks IIRC) and supports the AWESOME dev. If you're cheap just go download it from that link.
Once you have it you'll want to set up profiles! So click profiles, check the box next to the Sleep profile and choose 480,000/480,000 with ondemand scaler! I have no idea if it actually changes anything but the placebo effect is nice. Next back out of that and set the CPU governor to performance. What this does is clock the CPU to 600mhz constantly instead of scaling between 480mhz and 600mhz as the additional power is needed. It cuts down on choppiness while barely increasing the amount of battery required (in my experience the Slide tends to jump up to 600mhz when I'm not doing anything anyway).
Sync
Turn auto-sync off or set the sync intervals to the highest number possible (once a day I believe). It takes power and most of the time doesn't download anything important. If you really need some data just go and hit Sync Now and, well, it syncs.
Autostarts
There is this nifty little paid application in the market (costs like $1.25 or something) that you absolutely need: Autostarts
Basically applications launch when triggers are triggered, alot of these are pointless and just take up RAM and power.
These are what I have disabled:
After Startup
{Any 3rd party apps that aren't widgets}
Calendar Storage
Download Manager
Voice Dialer (unless you, yaknow, use it)
Maps
Mail
Calendar
HTC Media Uploader
My Account (unless you like the power alerts that take up power!)
Connectivity Changed
Download Manager
My Uploads
HTC Media Uploader
Genius Button
Media Mounted
My Uploads
Application Installed
Voice Dialer (wtf?)
Pico TTS (sem-wtf?)
Application Removed
Voice Dialer
Application Replaced
Maps (lolwut?)
Autokiller
There's an app called Autokiller, it changes the internal task killer's settings as to when to tell an app to shutdown (at stock settings this is almost never).
I use the moderate preset, but you may want to increase it if you never want to have to manually kill a task. Note that this method tells apps to cleanly shut down so data is saved (such as the page you are on in the Browser)
Additional Settings
In Mobile Networks set to GSM only (no 3G)
Turn GPS and WiFi off when not in use
Turn always on data off
Use a silent or vibrate alert method instead of sound alerts
Turn off your screen whenever you can
If you flashed ENG-BUILD flash the updated RADIO!!!!!!!
Protips
Do several battery cycles every 6 weeks (Charge to 100%, discharge to 0%, charge 2 hours past green LED while phone is off)
Espresso is heavy duty stuff, use a non-sense ROM for additional speed
Charging via USB takes significantly longer than charging via AV
Live Wallpapers will use lots of battery
Use wallpapers formatted at 480x320
Limit the amount of widgets you have to around 5 (unless they are from the same app, like Beautiful Widgets) they constantly refresh and do their thing in the background
I learned most of this thanks to enatefox's guide which I modified to suit the Slide, a coffee fueled mind, and general observations. If you have anything to contribute please let me know and I'll add it!

check general, few threads there on this .. it seems the development section is the hot spot around here..

an APN widget will do wonders, or even juicedefender.
i disable APN until I need it. screen is about 30% always. after everything i do i lock the screen.
on a normal days use (1-2hr phone calls, 30-50min of browsing the net, a ton of text messaging, and streaming slingbox) I'll have about 60% battery by 10pm.

great guide. thank you.
does autostart continually kill those processes? I ask because that long list of bloatware you listed is what is irritating me on my slide and even when I force kill them all they restart themselves every 5 minutes. I have taskilller set to kill them and they come back like the herp constantly.

skullkandy said:
great guide. thank you.
does autostart continually kill those processes? I ask because that long list of bloatware you listed is what is irritating me on my slide and even when I force kill them all they restart themselves every 5 minutes. I have taskilller set to kill them and they come back like the herp constantly.
Click to expand...
Click to collapse
Autostarts does not 'kill' processes, it disables them from running when certain triggers are triggered.
For example if SpywareApplicationOVER9000 runs everytime an application is installed, and you disable it in Autostarts, then it will not run when an application is uninstalled
ArizonaDomer said:
an APN widget will do wonders, or even juicedefender.
i disable APN until I need it. screen is about 30% always. after everything i do i lock the screen.
on a normal days use (1-2hr phone calls, 30-50min of browsing the net, a ton of text messaging, and streaming slingbox) I'll have about 60% battery by 10pm.
Click to expand...
Click to collapse
Can you write up a quick how to for Juicedefender?

[Q] Save battery by turning off mobile data (Tasker)

I'm trying to figure out if it's worthwhile to turn off mobile data when the screen is off, and turn data back on when the screen is turned on. It would also be necessary for me to occasionally switch mobile data on even when the screen is off in order to check email. (I'm thinking something like 15 minutes off, 3 minutes on)
Does anybody have any success stories or advice whether I am likely to see any noticeable battery savings by doing this?

I started doing this from when I first got my evo. Just turn off mobile data, you can still get texts and make calls, and then turn it on when you need it. Also turning off background data in settings also adds additional battery, but just enable it when you need the market. I went most of all day with about 80% of my battery still good between it just being off, using the mobile data here and there, and some texting.
Edit: I don't use a tasker, I just use the power widget in my notification, so I can turn on my mobile data on/off with just a tap. And if you're like me you don't know when you actually need it or for how long. So I find it easier and more effective to do it manually.

teh roxxorz said:
I started doing this from when I first got my evo. Just turn off mobile data, you can still get texts and make calls, and then turn it on when you need it. Also turning off background data in settings also adds additional battery, but just enable it when you need the market. I went most of all day with about 80% of my battery still good between it just being off, using the mobile data here and there, and some texting.
Edit: I don't use a tasker, I just use the power widget in my notification, so I can turn on my mobile data on/off with just a tap. And if you're like me you don't know when you actually need it or for how long. So I find it easier and more effective to do it manually.
Click to expand...
Click to collapse
X2, i use switch pro to toggle mine. Battery drops about 2% per hr while data is of with screen off even when listening to music from my play lists.

I turn off the "always on " mobile data and noticed a big difference. The data turns on and off with the screen.
Sent from my Evo using Tapatalk

Over the months I have been an Evo user, I have collected some valuable information that all users should probably know in regards to maximizing battery life. Besides the stuff about 4G and a few specific options, these steps apply to pretty much any other android phone running 2.2, and a lot of them apply to versions below Froyo.
General Lithium Ion Battery Information
^^This link includes stuff about charging, including trickle charging aka SBC (Why NOT to use it, or at your own peril)
My tips for good battery life:
Tips for Non-Rooted users:
1. Turn off all radios when not in use.
(gps, Bluetooth, wifi, data, 4g) Use a widget like the default HTC power widget or Switchpro from the market. The radios of the phone draw power if on even if the user isn't actually utilizing the radio's functions.
To manually turn off radios without a toggle, go to menu>settings>wireless & networks.
Wifi uses less battery than 3G, so use wifi when you can.
**IMPORTANT DISCOVERY**When you turn on your 4G radio, then turn it off, it will keep scanning and turning off all by itself.
The problem is apparently exacerbated by a 4G toggle widget, which causes the phone to automatically turn on 4G at boot. This repeating of scanning and disconnecting severely drains battery life, and sadly, no matter what ROM or kernel you use, there is only one way to fix it:
-If you don’t use the toggle widget, then you have to reboot your phone after turning off 4G
-If you do use a toggle widget, then you have to remove the widget from your homescreens, then turn off 4G via settings, then reboot.
**To check to see if this is happening, download alogcat off of the market. Look for the lines saying: I/Wimax ( xxx): <DC> Try to establish a connection to DC server.
E/Wimax ( xxx): <DC CONNECT> IO error: msg=’/xxx.x.x.x:xxxx –
Connection refused’
Over and over again.
2. Juice Defender is one of my favorite apps. Basically it controls your data for you to maximize life.
More explanations are on their page, search it on the market for free, or upgrade for more features.
Here are my settings for it: Click me
Note that for me at least, juice defender likes to deny apps data privileges whether you allow them or not, so screen on = data on works best for me.
3. I love live wallpapers, and I’ve always been a fan of pixel zombies, but they are really only good for showing off due to their battery drain.
4. Go to menu<settings<wireless & networks<mobile networks<disable always on mobile data.
Product F(RED) said:
To clarify, "Always On Mobile Data", when turned off, lets the 3G modem go to sleep after the screen has been off for 5 minutes. It doesn't interfere with anything like email or any other application that requires an internet connection at that moment because it turns on on-demand rather than being on all the time and wasting battery.
Click to expand...
Click to collapse
5. Set your screen timeout to something that fits you
This will prevent your phone from staying on when you don’t manually turn off the screen. Also with this, manually turn off your screen when you’re done with your phone.
6. Everyone has that issue where the first ten percent go the fastest.
This is due to two things. One is that these types of batteries stop charging once they get to 100% to prevent damage, and begin charging again at 90%. This means that you could potentially unplug your seemingly fully charged phone at 90% actual charge. The second is number 7.5.
6.5. Use the trick described in this thread, it works.
My idea behind how often you should do it is once a month, if you flash a new ROM, or if you stop noticing the benefits.
This is the calibration technique recommended by HTC themselves. Check it out!​
7. Task killers used to be the shiz, but no longer.
Here is the ultimate, in depth, graphically assisted, explanation by the famous Fresh ROM's chef, Flipz. Shortly, in light of recent testing, really don’t do anything but force apps that the android OS needed to be open, and thus didn’t close, to re-open. So try not using them, unless for stuff like trying to figure out why your phone isn’t sleeping with system panel. You really won’t notice a performance difference, and the adverse effects you aren’t seeing will stop
+=+ A good alternative is the application SystemPanel Pro. It has a free version, but I highly reccomend purchasing the paid app. It basically monitors everything going on with your phone's usage both in real time an in terms of usage history. If your battery is draiging fast, it tells you what app was doing it, how much it was doing it, and allows you to stop it.
8. People posting screenshots of the Battery screen as proof of long lasting battery are giving statistically irrelevant information.
See HERE That screen shows time since last REBOOT, not last charge. This isn't always the case, but a lot of people will post a lot of things about battery life, but look for definitive screenshots and testing results before you break down and cry due to the poster's life and yours.
9. I'm sure you have all heard around that your phone isn't "sleeping".
This is referring to the phone's "awake" time, hence the name. When you go to menu>settings>about phone>battery, you can compare the two numbers, "up time" vs. "awake time." Generally, up time refers to the amount of time since the last reboot. The "awake time" is how long the screen has been active. The problem is, a lot of the time, due to the endless possibilities of inconsistencies between apps/ROMs/kernels/phones, the phone will not go to "sleep", drawing power proportionate to the screen being in use when it reality the phone is sitting idle.
If you compare these numbers, and they are the same, or if you note the difference, turn off the screen for a minute, then re-check and they are the same, then your phone is not sleeping.
One solution is to reboot.
Usually, SystemPanel will show an app that has gone "rouge" and is keeping your phone awake.
Uninstall applications/reinstalling them slowly, checking after every install to see what is causing it is one tedious but surefire solution.
Lastly,
Follow these steps that I have discovered almost always work.
1. Reboot phone.
2. Instantly upon reboot, as soon as you gain control, open up some type of monitor/taskkiller
3. "kill all" tasks on startup; about 5 times in quick succession should do the trick.
4. Turn off the screen and leave it for about five minutes.
5. Check the up time v. awake time and see if they are the same.
6. If they are, repeat steps 1-5. If they are different, you are good.
Tips for Rooted users:
1. Try out custom kernels.
By going to the EVO 4G Android Development section of the forums, you can see all of the different kernels being developed. These allow for all kinds of modifications like underclocking the CPU and undervolting, both of which save battery. To see how to use them, read the FAQ's in each thread's OPs.
Here is a great guide to custom kernel's by mroneeyedboh.
2. Use SetCPU in compliance with whatever your custom kernel allows.
This site will explain the basics of SetCPU: http://www.pokedev.com/setcpu/
-Profiles from SetCPU should usually involve these for battery life optimization:
-Screen off at the minimum clock speed for both, with the max raised on level if sluggishness is apparent
-A temperature greater than “X”
-General power related profiles that lower cpu speed at lower battery levels
-Here are my SetCPU profiles: 1 , 2 , 3
-My profiles change a lot as time goes by, because different kernel creators recommend different settings. I suggest reading up on whatever kernel you are using to gather settings.
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NOTES:
*Some apps or processes begin to run at startup and keep the phone awake. These apps are not detected by things like spare parts or system panel, unless sometimes represented in the "system" process, in which case its usage will be unusually high.
This shouldn't take more than three repeats, and if it does, you need to factory reset, and slowly add apps back to see what's causing the problem.
___--- When it comes to actually "calibrating" one's battery, there are a couple of methods floating around. The method I first learned is to charge the phone all the way, boot into recovery immediately, and "wipe battery stats". Then reboot quickly, and run your phone all the way to death without charging it, then charge it all the way without interrupting it, and you should be good to go. Do this when changing ROMs/kernels for best results.
----When it comes to people claiming 20 plus hours of moderate/heavy use out of their current setup or other ridiculous absurdities, consider my position: No matter what you do, the Evo battery is the Evo battery. You can tweak it and customize it with kernels, ROMs, and settings, but none of that will turn it into a car battery. The main problem (besides a false sense of pride) that leads to these reports is the misunderstanding of what the usage levels are, so here’s my best summary:
* *Light usage – Phone screen actually on for maybe 4 hours. Things like a few texts, some emails, 20 minutes web browsing, etc.
* *Moderate usage – You watched a few youtube videos or similar apps, sustained web browsing, hundreds of texts, some games. Hours range from about 5-10 of screen on
* *Heavy usage – LOTS of video watching and games, or some high def gaming/movie watching for at least an hour to an hour and a half in total, with lots of emails and texts, browsing, and other app shenanigans
*I’m sure everyone doesn’t agree with all these numbers, but this is most likely a good average of what powerusers think. All specific hourage may vary due to differences in phones, batteries, ROMs, and kernels… Which also means that most battery comparisons are pointless; it’s only what you can improve on that counts!
I’ll update this whenever I see good stuff, people remind me, or I remember/come across things I do.
Hope it helps everybody!
Hit the "THANKS" button if I help you!
*All this is available in the link in my signature

hfuizo said:
I'm trying to figure out if it's worthwhile to turn off mobile data when the screen is off, and turn data back on when the screen is turned on. It would also be necessary for me to occasionally switch mobile data on even when the screen is off in order to check email. (I'm thinking something like 15 minutes off, 3 minutes on)
Does anybody have any success stories or advice whether I am likely to see any noticeable battery savings by doing this?
Click to expand...
Click to collapse
I am the owner of SuttCo. We developed the Locale Mobile Data Plugin (which can be used by Tasker). It has a condition that can keep tabs on your data use and a setting which can be used to shut off mobile data.
I know Tasker and Locale have screen off/on conditions. I don't have time to run any tests for you (busy working on a new plugin), but if you're willing to do a semi-scientific study and report the findings here... I'll comp you a copy of the plugin. Shoot me a PM.

Good stuff
Sent from my PC36100 using XDA App

glad i found this post... improving batt life all written up, great job!

Juice defender takes care of turning off ur mobile data and turning it on when needed, all by itself
Sent from my PC36100 using Tapatalk

Not to say that turning off mobile data when you're not using it is a bad idea but I've found during my own personal experience with trying to improve my battery life for daily use that using titanium backup to freeze Google Backup Transport.apk is also a helpful solution. Other things that helped are going into Accounts & Sync and turning off background data because believe it or not, that stuff eats your battery up like a fat kid eating cake...hahahaha...Anyways, another tip would be to hit up Display and turn off Automatic Brightness and play around with the scroll until you come to a setting where you can see because I've found that the Automatic brightness eats up your battery too, not as fast but it does! Another thing that I've done is this and although there are task killers that would do this for you....I've decided to do this myself and after using an app such as Facebook or the brand new CNN app, I've gone into Applications and force close them out just to save battery and all of this nonsense I'm talking about has helped me out alot......NOT TO BRAG but using these little tips of mine, I've gone from 2 and a half hours and I was at 70 percent to 4 hours, 36 minutes and 48 seconds and I'm at 68 percent.....and that's with out turning my phone off, that's talking on the phone, texting, checking my facebook, downloading some apps here and there and just leaving it on in front of me at my desk.
Please don't start posting "Oh what, you want a FUC%ing cookie now" and all of this....all I intend to do is help someone by sharing my story....that is all! I got to get my butt to working again...hahahahaha

hfuizo said:
I'm trying to figure out if it's worthwhile to turn off mobile data when the screen is off, and turn data back on when the screen is turned on. It would also be necessary for me to occasionally switch mobile data on even when the screen is off in order to check email. (I'm thinking something like 15 minutes off, 3 minutes on)
Does anybody have any success stories or advice whether I am likely to see any noticeable battery savings by doing this?
Click to expand...
Click to collapse
I have setup a few Tasker profiles to do this exactly. I did this instead of JD because the free JD doesn't do exactly what I want it to do, and I don't want to pay for JD when I can emulate it with Tasker.
The only thing I cannot do, that JD can, is keep data on while there is an active connection. With JD, if you turn off the screen while there is an active data transfer, it will wait until the transfer finishes to turn off data.
According to the Tasker website, there is plans to make a state/event "connection data rate" which would make it possible to do this. But that has been in their plans for quite some time. (I actually happened upon this post while searching for a way to check if there is an active data connection with Tasker.)
Also, with the way that Tasker views an "Open program", the program has to be open in the foreground in order to be considered open. This makes it tough to keep data on when a specific program is open, unless you're planning on keeping that program in the foreground all the time. To get around this, I created a profile that leaves data enabled while I have headphones plugged in, since I have headphones plugged in while using all the programs that I want to have constant data with.
EDIT: here are the profiles, and the tasks that go with them (I also included a profile that turns off the wifi antenna after disconnecting from a wifi access point.)
dl.dropbox dot com/u/4658512/profiles.zip
dl.dropbox dot com/u/4658512/tasks.zip
(It won't let me post links because I don't have enough posts, so just take out the spaces and replace dot with .)

[GUIDE] Battery Saving Steps/Mods/Roms | 7/6

Battery Save Like RandomKing​
I find myself regularly repeating many of these suggestions on many threads to many different people on how to extend your battery life. When not in use, my phone loses at most only 1-2% battery per hour! So I'm making one thread in the Epic forums dedicated to maximizing battery life while trying to explain why these steps will work. Some battery improvements come at the cost of performance or lack of certain services. This must be distinctly understood, or nothing wonderful can come of these steps.
Step 1: Brightness & Battery​
Let's face it. Our Android phone screens are huge. This feature is the largest, and completely unavoidable battery-drain. The only way to limit it is to not use the screen... ergo... not use your phone. But that clearly makes no sense, so how to limit that drain? Well, a good step is to turn down your screen's brightness to the lowest you can read clearly, don't hurt your eyes! For night-time use, there's an app that can turn the brightness down even lower called Screen Filter(Thanks to iModMM for the find!). Also, choose a nice dark background, something in the black color range. For all phones, the darker the color, the less brightness used, less power consumed! But for our Epic's Super Amoled screen, specifically, a black pixel is technically an "off" pixel. That's right, every black pixel on your screen is a part of your screen not being powered, since the Super Amoled does not need backlighting. Blackle is also a good alternative to the standard Google site for a black themed search engine, though it doesn't seem to be mobile optimized. Also, lock your screen with that nice little button on the top right side of your phone. Don't wait for it to lock itself! As far as the battery itself goes, charging to 100% can be tricky. The moment that led turns blue, your phone has generally reached 100%, but it will generally trickle charge between 97 and 100 after that. A good way to charge to 100 percent is to use an external charger, which generally come with 1 or 2 spare batteries for about $20. This way, the moment your battery dies, shut down, and pop a fresh one in.
Step 2: Using a Custom Rom​
At this point, there are many Epic 4G custom roms out, and if you're in this forum, you've likely rooted or are trying to root. Well I will not go into rooting directions here. Take a look at one and see how it fare's out-of-the-box for you. If you choose to use my customized rom, you will find a task manager with a preset ignore list, ready to use as a one-tap app-closing widget; as well as the service-freezing patch mentioned below in Step 8 ready for execution through a terminal, and my entire setup(among many other mods, apps, and tweaks tested for the greatest battery performance). These are just roms I've used myself to great results. Many others exist. Updated 7/6:
RandomKing's Customized Rom
2.2.1 EC05 v.1 Plus [Journaled w/Genocide 1.0] [Screenshots]
SyndicateFrozen Rom
2.2.1 EC05 v.1.2
Bonsai Rom
2.2.1 EC05 v.4.1.1 Not Supported on XDA. Sorry.
Midnight Rom
2.2.1 EC05 v.5.3
Step 3: Disable Unnecessary Services​
First and foremost, disable all location services, wifi and gps based. This will affect certain apps like weather apps, you'll simply have to deal with static locations. Next, disable data sync. Contacts will not synchronize with Gmail while this is off. You will have to enable it sporadically. The Gmail app also will not function while this is off, I recommend using the email app and simply adjusting the refresh interval. You can always manually check your own email . Likewise, you may put your phone into airplane mode altogether if you don't plan to use it for an extended period of time, such as school, work, swim meet, movies, or on an airplane.
Step 4: Task Killers and JuiceDefender​
First, let's get JuiceDefender out of the way. It's a neat app, and in certain ways, effective. However, it's own effectiveness comes with certain contradictions. It disables nearly all signals, which will include, for example, Google Voice. In my experience, this app hindered certain other services, and if anything may have drawn further on my battery. My recommendation is to stay away from it. Now onto Task Killers, they are good, and they are evil. Let me explain. Many of us may find issues closing all the apps we open, and sometimes forget we left something open. A task killer can easily ensure that you've closed all of your programs. Now onto the bad. Task killers can try to kill certain system services. This is generally BAD. Certain services shouldn't be killed, and others can't be killed, and the ongoing battle only further drains your battery while trying to kill services that AREN'T actually bad. So on that note, the worst part of task killers is AUTO-KILL. Disable it! Kill it! Kill it with FIRE! I use Advanced or Adao Task Killer, with no auto-kill. It is one of the only widgets I use, and I simply tap it before I lock my phone each time.
Step 5: Widgets​
If you don't need them, don't use them. Almost all widgets make continuous unnecessary calls to the Android system, and this can be a huge battery draw. Even simple widgets. Through all my testing, there's only 2 widgets I have approved thus far: Advanced Task Killer, Power Control. Other disapproved widgets: Pandora, Winamp, Weather(ALL OF THEM), etc.
Step 6: SetCpu, Voltage Control, and Over/Underclocking​
As with much of this thread, this is opinionated and empirical theories. Through my testing, Overclocking is unnecessary, and guaranteed to draw on the battery. Most of these roms come from fantastic devs and are, by default, blazingly fast. Overclocking is completely redundant in my opinion, and I'm generally all about speed. Underclocking/undervolting may preserve more battery, but my opinion on the matter is similar to my feeling on widgets. If you don't need it, don't do it. If you feel the need to use these apps, a generally accepted setting for battery preservation is to undervolt to 800 max. and 100 min. (if your phone can handle it, some may experience wake-locks, raise min. to 200) on conservative governor, adjusting your profiles for when the phone is locked, unlocked and etc.
Step 7: Unnecessary Apps​
Free apps are great, aren't they? But how many have you gathered, just because they're free? Now how many of those don't you use, but regularly draw on your phone regardless. There's an easy way to roughly check. Open your settings. Now go to Applications. Manage Applications. Take a look at which are running that you have not opened. Using a task killer prior, and waiting a couple minutes to see what re-opens may be a good way to check which apps are continuously running in the background and evaluate if they can be removed.
Facebook --- Notorious for running in the background. Disabling notifications may help.
Latitude --- Largest offender of location service usage. Neat app. Huge battery hog.
QIK/Fring --- Any video chatter really. If you don't use them, remove or disable them.
Browser --- Large ram usage. Try Dolphin Mini or Miren.​
Step 8: Freeze Services​
Using Titanium Backup Pro, MyBackup Pro, or Bloat Freezer (yes, non-free apps) freeze any of the following services:
sns --- (Will disable sns)
snsaccount --- (Will disable Facebook contact integration)
drm --- (May affect media programs like mediahub)
drmcontent --- (May affect media programs like mediahub)
systemupdater --- (Best disabled if on custom rom)​
Enter the following commands into the Android Terminal to manually freeze the above services:
Code:
su
pm disable com.sec.android.providers.drm
pm disable com.sec.android.app.sns
pm disable com.samsung
Simply enter the previous commands into the Android Terminal while substituting "enable" for "disable" to manually defrost these.
If you would like a shortcut for this method, check out the patch in This Thread Also Included In RandomKing's Rom..​
Step 9: Journaling​
Journaling... some love it, some hate it. The fact remains, journaling enables extra write cycles. While this will prevent data loss, it also means more cpu usage. It follows that battery should last longer with journaling disabled. You can use chris41g's mod HERE to turn Journaling on/off at will.
Step 10: Turn it Off and Spend Time With Loved Ones​
That's right. You're obsessing with your phone. Leave it be. Do something meaningful and memorable. Have fun with life! This is just a phone.
More coming as it comes to me! Including mods, apps, etc. aimed at improving battery life. Feel free to leave your own suggestions or questions! If this guide and it's features have helped you in anyway, leave THANKS so I know whether or not to keep up on it!​

Y is this in q&a?
Sent from my Nexus S 4G using XDA Premium App

Because its an answer to many questions posted here.
-Sent from my Random Epic.

many good suggestions here RandomKing.
this stuff is all so useful to us newer users out here, maybe this should be stickied (either here or in general).

jarcher1971 said:
many good suggestions here RandomKing.
this stuff is all so useful to us newer users out here, maybe this should be stickied (either here or in general).
Click to expand...
Click to collapse
Thanks! I have no control over where this belongs, I just know its an answer to many questions and would be noticed here.
-Sent from my Random Epic.

has anyone noticed an effect on the phone's ability to sleep when you manually reorder the apps alphabetically in the app drawer? I kept having problems and factory reset 2x. Now I did find 3 troublesome apps that although not apparently running in the background, kept my phone from sleeping simply by being installed. I also stopped ordering my apps, deleted the troublesome apps and now it seems my phone is working correctly. I wonder if that (editing the default order) could also prevent the phone from sleeping? Any thoughts?

rando991 said:
has anyone noticed an effect on the phone's ability to sleep when you manually reorder the apps alphabetically in the app drawer? I kept having problems and factory reset 2x. Now I did find 3 troublesome apps that although not apparently running in the background, kept my phone from sleeping simply by being installed. I also stopped ordering my apps, deleted the troublesome apps and now it seems my phone is working correctly. I wonder if that (editing the default order) could also prevent the phone from sleeping? Any thoughts?
Click to expand...
Click to collapse
Can't say I've noticed this, but I've been on launcherpro for quite some time now. Perhaps you could share more details on your setup?
-Sent from my Random Epic.

I'm non rooted stock EC05. I used to use EDIT in the app drawer to rearrange my apps in alphabetical order (they don't arrange themselves automatically this way after rebooting). I had noticed in spare parts that my phone was never sleeping and killing my battery. I did a factory reset and it worked as advertised. I slowly added apps back until I found two that seem to prevent my phone from sleeping so I uninstalled them. Phone worked fine for a while but then started acting up again. I repeated the procedure, leaving only the apps my wife's phone had (hers always sleeps like a baby), but then my phone started up again. Tried another reset but this time decided to leave the apps in the order they put themselves and so far so good...wondering if that was doing something or if it is an app update that goes bonkers?

rando991 said:
I'm non rooted stock EC05. I used to use EDIT in the app drawer to rearrange my apps in alphabetical order (they don't arrange themselves automatically this way after rebooting). I had noticed in spare parts that my phone was never sleeping and killing my battery. I did a factory reset and it worked as advertised. I slowly added apps back until I found two that seem to prevent my phone from sleeping so I uninstalled them. Phone worked fine for a while but then started acting up again. I repeated the procedure, leaving only the apps my wife's phone had (hers always sleeps like a baby), but then my phone started up again. Tried another reset but this time decided to leave the apps in the order they put themselves and so far so good...wondering if that was doing something or if it is an app update that goes bonkers?
Click to expand...
Click to collapse
Hmm. If you can't narrow it down to a certain app, I'm not totally sure what it could be. Have you tried clearing the data/cache of Twlauncher? You could try a launcher like LauncherPro, you don't have to be rooted to use a different one.

No but if the problem comes back up I will try some of those...these are the 3 apps that when loaded caused problems: NIV Bible, Document Scanner, [I now have relacement apps for each of these now] and most recently Espn Score Center, but my wife had all of thse but the doc scanner and had no problems

i would check in spare parts to see which apps may be holding a partial wake lock. for me the facebook app was not letting my phone sleep until i disable all of its notifications.

jarcher1971 said:
i would check in spare parts to see which apps may be holding a partial wake lock. for me the facebook app was not letting my phone sleep until i disable all of its notifications.
Click to expand...
Click to collapse
Likewise. This is why I removed facebook altogether. The new mobile site has proven to be pretty useful now.
-Sent from my Random Epic.

Yeah I found the same thing...but I would log out of Facebook too. Also the problem reappeared after a factory reset and I had not gone into Facebook. Are you saying that even if you don't log in, it can stop your phone from sleeping? My phone started doing it again a few days ago for no apparent reason, and I was able to stop that behavior by: finding and moving 2 apps from the phone to SD card (I thought I had gotten all of them), clearing any cache from different apps, and rebooting.

jarcher1971 said:
i would check in spare parts to see which apps may be holding a partial wake lock. for me the facebook app was not letting my phone sleep until i disable all of its notifications.
Click to expand...
Click to collapse
That wouldn't tell me anything when I had the problem. The only thing was Android System....and....the phone wouldn't sleep even if in airplane mode! Which meant it had to be a process or app doing it all the time. I had never thought to clear cache, but I wonder why doing that works? Also there's a menu option in Spare Parts about Button Behavior which leads you to believe you can make the phone sleep but the menu says "only available in Ver 1.5". I've checked the market and can't find a ver 1.5 Spare Parts...

rando991 said:
That wouldn't tell me anything when I had the problem. The only thing was Android System....and....the phone wouldn't sleep even if in airplane mode! Which meant it had to be a process or app doing it all the time. I had never thought to clear cache, but I wonder why doing that works? Also there's a menu option in Spare Parts about Button Behavior which leads you to believe you can make the phone sleep but the menu says "only available in Ver 1.5". I've checked the market and can't find a ver 1.5 Spare Parts...
Click to expand...
Click to collapse
I believe it means android 1.5, because that says "End Button Behavior", and no new phones have Call and End buttons on them. Because the "Fancy Screen Rotation" says 1.5 only also.
Sent from the only thing i need.

RandomKing said:
Step 6: Unnecessary Apps[/CENTER]
Free apps are great, aren't they? But how many have you gathered, just because they're free? Now how many of those don't you use, but regularly draw on your phone regardless. There's an easy way to roughly check. Open your settings. Now go to Applications. Manage Applications. Take a look at which are running that you have not opened. Using a task killer prior, and waiting a couple minutes to see what re-opens may be a good way to check which apps are continuously running in the background and evaluate if they can be removed.
Click to expand...
Click to collapse
I think you mean "Now go to Applications. Running Services." Going to Manage Applications will show all non-system applications and not tell you what is currently running, AFAICT.
Or am I mistaken?
Thanks for this thread.

prodigyplace said:
I think you mean "Now go to Applications. Running Services." Going to Manage Applications will show all non-system applications and not tell you what is currently running, AFAICT.
Or am I mistaken?
Thanks for this thread.
Click to expand...
Click to collapse
No, there is a "Running" tab inside Manage Applications. An app doesn't have to have a service to be running.
Sent from the only thing i need.

zanderman112 said:
No, there is a "Running" tab inside Manage Applications. An app doesn't have to have a service to be running.
Click to expand...
Click to collapse
Thanks for clarifying, Zanderman. Somehow I never noticed that tab before.

rando991 said:
That wouldn't tell me anything when I had the problem. The only thing was Android System....and....the phone wouldn't sleep even if in airplane mode! Which meant it had to be a process or app doing it all the time. I had never thought to clear cache, but I wonder why doing that works? Also there's a menu option in Spare Parts about Button Behavior which leads you to believe you can make the phone sleep but the menu says "only available in Ver 1.5". I've checked the market and can't find a ver 1.5 Spare Parts...
Click to expand...
Click to collapse
Sounds to me like a system process may be the cause rather than any particular application. For me also I had issues early on with the SNS service forcing itself to restart continually and being a battery drain. It usually takes a force stop on that service followed by clearing data in the sns app and rebooting to fix. Don't know if that will work for you, but hope it helps.
Sent from the communications console of the NX-01 using a universal translator

My tips you can add:
1. I always, no matter what, always have brightness on lowest setting! If you have a hard time seeing in sun, than do auto, but turn off when don't need to, I have on low 24/7. Then at night, I have this app called screen filter which lets you lower brightness then default setting(good on eyes).
2. I always have auto-sync off. If you want emails etc. configure with ur preferences. And most of the time background data. But with background data off, you don't have access to market and have to enable for use. Don't get notifications. Lately, haven't been getting WhatsApp messages. This is optional.
3. In wifi settings, network notification turned off. Haptic feedback and all vibration disabled. Sounds on key clicks or anything disabled. Auto rotate screen off. No window animations. Screen timeout, 15 seconds. Keyboard timeout, 3 seconds. In location, use wireless networks and gps satellites unchecked.
4. No live wallpaper! No bright colors! I use a black background for wallpaper!! Try to go a little dark, not bright, stay away from white! Id recommened, the full black wallpaper. Also on ur homescreen, avoid widgets! Especially ones that use live web feed like, facebook, scorecenter. These are battery suckers!
5. I delete all apps I do not use! Stock and user. Download titanium backup to fix this issue. I freeze, system updates, swype, drm content, drm content launcher, sns, snsaccount. I uninstall the stock browser, use dolphin!! I also uninstall, all sprint bloatware, my files, gmail, email, talk, news and weather. Uninstall all stock and user apps you don't use! Check spare parts to see what runs in the background that you don't use. Another thing to add, I uninstall swype and android keyboard and use better keyboard gingebread edition 8.
6. Disable refresh interval in facebook, do it manually when you are going to use it!
7. Use setcpu. Undervolt to 800max and 100min on conservative governor. Set profiles, when phone is locked and etc.
8. Now lets talk about juicedefender and task killers. Juice defender will work and is a good app! BUT: if ur a person like me, I text a lot in whatsapp and when u lock screen it disables data, so u wont get texts. Download it, take a look at it, try it out. I recommend using agressive mode. Now lets talk about task killers. Personally, I think they dont work at all, and actually waste battery then save it. I just would say don't use one, and use samsungs stock task killer(actually works!)
9. Use a custom rom and kernel. Always be up to date on updates. I usually use, SRF and midNight. All about preference.
10. Extended battery FTW!!! Buy a seidio extened battery! May cost some money, but will greatly increase battery!!! Or get a cheap asian knockoff on ebay.
11. Disable data and put phone into airplane mode when it wont be in use for a period of time. Like at school or work. I usually keep data off during school. You will see a difference with data on and off.
12. Always keep wifi, bluetooth, gps, 4g off when not in use. They will drain battery crazy!!! Wifi will search for networks constantly, same basic thing with gps and bluetooth.
13. Also do full charges!! At night shut off phone and let it charge for a good 8 hours. Then in morning, turn on still plugged in. The charging indicator will be red, leave it alone till its blue. Go get dressed and eat some breakfast lol. Then when you come back it should be blue. And when on boot, let it finish media scanning, don't interrupt it!!
I can guarentee if you follow my tips, you will see a significant increase in battery life!
These are my tips!! I will add more if I can remember some more!
Typed this all on my Epic!!

[Kobridge]Getting BAD battery life? Post your screenshots here

I open this thread to help the users having bad battery life and find out the possible resolutions. Whenever you see the bad battery life, in most of the cases it would be caused by some specific apps or the way you are using the phone and it's not from the ROM itself.
As you may know, I'm working on Kobridge Tweaks and trying to improve the performance and battery life but there're lots of variances that we still don't know and have to know.
So, let's work together to find out the better solutions!
In here, please share your screenshots and your settings. But, don't post with just simple words - it's good or it's bad. We need the following information when you post;
1. Your ROM related info - Rom name, version
2. Kernel/modem version
3. Any additional apps installed
4. Any tweaks that you did by yourself
5. When you post, please add the screenshots -
(how to capture screenshots -> ICS: vol down + power button at the same time or if this function does not work then try screenshot it (trial) or pro (paid)
Full screenshots showing (from better battery stats, download it from http://forum.xda-developers.com/showthread.php?t=1179809 )
a. Since unplugged - other, partial wakelocks, kernel wakelock, alarms, process
b. since charged - same as 'since unplugged'
(Be sure that when you take the screenshots, reset the counters between since unplugged & charged)
System tuner pro or cpu spy -
c. CPU utilization diagram.
d. CPU times (system tuner pro)
Download - System Tuner, System Tuner Pro (Paid), CPU Spy
Other Tools Download -
Battery Monitor Widget, Battery Monitor Widget Pro(paid), Badass Battery Monitor, Badass Battery Monitor Pro (Paid)
Just normal screenshots from
e. settings > battery (1)
f. click on the graph (2)
g. click on the screen (3)
h. all Kobridge tweak log files - /data/log/kobridge_tweakxx.log if you are using Kobridge tweaks.

Kobridge - General Settings to extend the battery life
General Settings or Configuration to extend battery life
This is an initial edition. I'm going to update and add more information here.
Original post - http://forum.xda-developers.com/showthread.php?t=1625299
I've worked on this part so long time since I've started using ICS ROM. I also tried almost every battery saver apps but didn't get any better result using my own method because sometimes there are lots of overheads using it (I'm trying to avoid describing any individual app's pros and cons in here and just provide you the better way to configure your phone).
The information in here is based on FF18 rooted stock rom/modem/kernel. But it's not limited to any specific phone or build. You could probably use it in any phones or builds.
1. Wifi
Some of you understand that wifi is faster than 3G and use less battery than 3G. You also say that 4G is the biggest monster consuming lots of battery. But that would be true and false.
Sometimes, wifi uses lots of battery to get the faster speed and keep the connection.
There could be multiple scenarios in here and below is based on my test -
Original post can be found in here
WIFI - I always turned on at home (because wifi is available) with 'never' option. In this case, 3G will cover the data communication if 3g turned on during the deep sleep. If wifi signal is so strong, even you don't need to turn on 3G and use the wifi during the sleep mode by changing the wifi option.
If you don't need the data communication during sleep mode, then turn off 3G and make wifi sleep (never) during the sleep mode. With this option, your battery could last about 2 hours per 1% drop.
3G - you need to compare between 3G and wifi. Which one is better and use less battery based on the signal strength.
For me, I'm using both 3G and wifi turned on. Using these two options turned on, I make the data communication available always and these two are compromising each other.
OK, here are some screenshots from 3.4M (check the original post link above). From 100% to 65%, I turned on 3G, so it covers the wifi when wifi sleeps during the deep sleep. From 65% to 45%, I turned off 3G, so during the deep sleep, both wifi and 3G were not available. When screen turned on wifi only came back (if you are not a heavy user, this method will save lots of battery).
Based on what I said, I've tested couple of things-
1. Battery life when wifi turned on 24x7
2. Battery life when 3G turned on 24x7
1. When wifi turned on 24x7 (turned on even screen is off), my phone shows that there were about 2.5% drop in every hour (100% > 73% about in 9.5 hours)
2. Wehn 3G turned on 24x7 (no wifi, no 4G), the battery consumption was much slower than wifi. (73% > 62% about in 14 hours). A little more than 1 hour per 1% drop.
Based on my test with minimum wifi, 3G usage, it shows that 3G saves a lot more battery during the standby mode. This result could be different based on your area and signal strength.
Now I showed many things related to wifi, 3G and how it affects the battery life.
Only one thing that I did not test is 4G. It's really hard to make a test using 4G inside of my office because I don't have 4G signal at all. What I can try is, 4G random reboot issue. I'll try to turn on 4G and see if it happens....
2. 3G
Keeping 3G turned on is a good habit. Because it covers wifi and 4G whenever those are not available. 3G uses battery a lot less than wifi and 4G (it could be different based on your signal strength)
Howto keep it on: setting -> more -> mobile networks -> check 3G DATA
Like I said before, if you have a reasonably good 3G signal, then you may want to turn off wifi and 4G to save the battery.
3. 4G
Just like wifi, minimize turning on 4G network. This use a lot of battery if you are in the bad reception area. If the signal strength is really good, then it would be probably ok keeping 4G turned on. In some cases, 4G would be the only solution to watch the movies, streaming videos when the wifi is not available.
Based on my limited test, using 4G in good reception area is much better than using wifi with low/weak signal.
4. Call option
Mark checkbox for Turn on proximity sensor for your convenience even there would be a little battery drain. But if you are a heavy talker, then I recommend to uncheck this option and use the power button to go back to control mode.
5. Sound
Lower the sound/vibration level within the acceptable range for you. There would be some differences on battery behavior by turning off or on of sound/vibration. But I don't want to recommend anything in here because I don't want you to lose any incoming calls/messages/etc.
6. Display
Automatic brightness should be fine in most cases. It's really related to screen on time battery consumption. I don't want to deal with this option at this time.
Pulse notification light, display battery percentage - turn it on or off based on your preference. Battery consumption by turning on these options would be minimal. I saw that some people said that they recommend to turning off the 'pulse notification light'. But I don't agree with that. One blinking LED light almost does not use any battery!
display timeout - I set it with highest value provided. After using the phone, I manually press the power button to go to sleep mode. With short timeout value, I have to keep press the button or screen to keep the screen on. I don't like this method.
Turn on 'Auto adjust screen power'.
7. Power saving mode
I always keep this option off because I do not want to lose anything because of low battery. I would rather change the numbers in my tweak (battery profile 2 in scaling tweak).
8. Account and sync
Most of time, I keep this option turned off. This would be one of the battery eating monster. I would rather individually sync the apps whenever I need it or from the actual apps.
9. Battery
when you charge the battery and phone shows that 100% charged, unplug the cable few seconds and plug-in again to charger. Repeat this couple of times and your battery would be really fully charged. Many times, even phone shows 100% charged, it could be the minimum 100% range. Actually, there's some voltage allowed and considered as 100% charge. But by maximizing the voltage during the charge, your battery life could be extended.
10. Motion
Turn off this option if you don't need this.
11. email
If possible, turn off the option that pushing email immediately. Instead, put the retrieval interval as long as you can. Based on my test, it could extend your battery life as maximum as couple of hours. In my case, I put the 2 hours interval. By doing this, your phone is much easier to enter the 'deep sleep' mode.
12. Startups
For me, I don't allow the apps automatically start during the boot as much as possible. If it's the system app and critical app for the phone's normal operation, then you have to allow those startups but otherwise, you can disable the startup apps based on your test.
For this, I usually use Rom Toolbox and/or System Tuner Pro. These apps allow us to enable or disable the startup apps.
For any apps like I don't use frequently or at all, I disable the apps from the 'event' (rom toolbox) or startups (system tuner pro). Once you disable the startups, you may need some test to see what happens when you manually launch the apps. If your app does not start normally, then go back and enable the event again.
There's also one more battery eating moster - widgets (currently doing some experimental test on it)
Regardless of widgets are in foreground screen or just stays in widgets folder, almost same amount of battery could be used by widgets to make it upto dated and refresh the connections, etc.
So, if you don't need the widget or don't use, go to (from Rom Toolbox) Auto Start Manager -> Applications -> select app you want to check -> it will show that widget updating is enabled or not. If it's enabled and you don't want it, just disable it. Then the app is not going to use that specific widget and actually widget will disappear from widgets folder.

Kobridge - Recommended APK settings to save the battery
I'm going to add the recommended APK settings in here to save the battery.

How to adjust Kobridge tweaks - guide to modify the Kobridge Tweak settings!

Known Battery Monsters

Best screenshots - worst ever or best ever!

It's a good thing that no one is posting here
Sent from my SPH-D710 using xda premium

Maybe should change name to good battery life? I've used your tweaks sense I 1st flashed a ROM even though I'm still noobish I never had a problem...
Sent from my SPH-D710 using Tapatalk 2

before i saw who posted this, i thought someone was calling u out kobridge =P

fryingpan0613 said:
It's a good thing that no one is posting here
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
epic4gfaded said:
Maybe should change name to good battery life? I've used your tweaks sense I 1st flashed a ROM even though I'm still noobish I never had a problem...
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
It doesn't matter that even you have a good battery life, then please show us how you are getting the 'Good one' with your screenshots and settings if you think it would help others.
Thank you guys!

I saw that some people said that they recommend to turning off the 'pulse notification light'. But I don't agree with that. One blinking LED light almost does not use any battery!
Click to expand...
Click to collapse
It's not that the blink uses battery, it's that the blink causes your phone to wake up from its Deep Sleep and use the 200 MHz state of your processor. This wakelock takes away battery.
Thanks for the guide though. Looking forward to getting better battery life. I'm currently on CM9 though so I can't use your tweaks Just waiting for an AOKP build that switches /emmc and /sdcard back around to the way it should be
Edit: Just got System Tuner Pro... seems very complicated but I followed your startup advice

Per OP's request. Thread closed for now.

Captivate Glide Batt Life/GPS

I have had the Captivate Glide for little over a month now. It was the rooted rogers version but I flashed AT&t's rooted ICS on to it.
Major issues were battery life and GPS.
Without changing any software I wanted to solve the issues or make them tolerable at the least. Probably better ways of doing this, but this is what works for me.
I assume everyone else is like me and downloaded tons of apps that we like. I personally have 30 downloaded with some form of Google being responsible for at least five of them. I also synced my google account, as well as my outlook account and skype account.
I do not game on my phone I prefer the console style of gaming but I digress.
Simple battery life can be saved obviously by closing or backing out of applications when not in use. You must be avid about this in order to preserve battery life. If you have not altered your ICS it comes with an "Active Applications" widget that makes this simple and easy. Within that widget is an even better function that allows you to clear memory on your ram. Do that for superior battery life as it will close down any program running including back ground processes.
You should also have widgets that allow you to toggle WIfi, and GPS, Bluetooth, brightness, screen time out, sync, and settings. <Extremely helpful in saving battery life. Wifi should be used whenever possible. If your phone is running processes that use data and it probably is, its better to use Wifi for your battery. Turn Wifi off when you can not secure a connection because the phone searching for wifi to connect will eat your battery.
Turn off GPS when not in use. If using an app that likes to have your location you can keep GPS on but turn it off when not directly in use it saves battery like no tomorrow.
Screen brightness is also a huge factor in battery Life. If you Go bright you die, simple as that. Make your screen as dim as you can but still comfortable to see depending on what you are doing. Again the widget makes this super fast and easy but you can go into the settings and adjust this by percentage if you are particular. Other wise the widget allows Bright, half bright, auto bright, and no bright. No bright will save tons of life so learn to see in the dark haha.
Screen timeout at 15s will save tons but can be annoying if your in the process of using your phone. I uses it and just tap my screen if I need it to stay light but trust me it gets old fast but so does a dead battery.
Go to your individual synced accounts and adjust the sync intervals to specified times if possible. Usually find it once you open whatever account and go to its settings. That gives the battery some life in between syncing which uses data and eats battery.
Go to settings and toggle system power settings. This Saves a huge amount of battery life and I have no idea why. You may be tempted to customize but don't. The system power saving is far superior from my experience so far.
One last and final thing to save battery life. The Google Play Store. It runs a ridiculous amount of Background processes. Go to settings, then, data, find the play store and click it, scroll to the bottom and restrict the background data. You will have to turn it back on in order to use the play store and some other apps which leads to my next topic...
GPS
This captivate glide has a notorious rep for being ****ty in these here forums. I am here to tell you its not all true. I am not a software guy as you can see all of my advice is simple common application usage advice. I previously had the SGH-I827 and its GPS was spectacular so I found it hard to believe the captivate glide GPS would not perform well. In fact when I began to use it, it did not. It was glitchy and unreliable. Terrible at best. I thought I was going to have to buy another phone or do some software stuff I had no clue of. I was patient.
And for myself I figured it out.
Everything you do to this phone is reflected in its functions.
All the things I suggested to save Battery Life impede the GPS of this phone. Take that in...
I started over from scratch resetting back to factory settings. (leaving the Stock rooted ics). If your google account backs up all your apps they will begin to re download immediately once you sync your account again, BUT STOP IT!
Don't let anything Upgrade or Download to your phone automatically. This is crucial.
Google maps upgrade must not be allowed. Instead use the current version that comes with the ice cream sandwich OS. (includes the navigate button we all like as well as the places icon) Everything else can then be downloaded or upgraded in the play store manually.
Now, for the tricky part. you have been saving battery life using all the propper previously mentioned techniques but now you want to use GPS. First thing you need to do is uncheck system power settings.. Then allow google play services to have its background data back. Settings, data, google play scroll bottom yea uncheck it. Turn your screen timeout to 10min. Now toggle GPS back on. But wait one more thing, Clear the ram. All done in that order Now when you go to maps you should get a lock in under a minute and it will be reliable. No way of stopping GPS from consuming a ton of battery but if you dim the screen and charge it while in use you will see battery life gains instead of losses.
Thanks for reading my personal usage experience so far. I have yet to take the update to GPS to see if it still works in the same fashion because I am a coward and I like my GPS right now. Let me know if anyone experiments further. With the rooted ICS OS.