Database Users

Attention!!!!!! Everyone with battery life issues please read this!

I think I finally found the solution to lousy battery performance on Android phones in general!
If you are using Spare Parts -or any other battery monitor app- and noticed a near 100% of awake time then,
it's as simple as that:
Go to menu, choose Settings->Applications->Development
and make sure that Stay Awake (second option) is NOT checked.
If it is checked the phone never sleeps while charging, but unfortunately, due to an android bug I guess, won't return to his regular sleep schedule after disconnecting from the charger.
Please try this and let me know! It worked for me!

My_Immortal said:
I think I finally found the solution to lousy battery performance on Android phones in general!
It's as simple as that:
Go to menu, choose Settings->Applications->Development
and make sure that Stay Awake (second option) is NOT checked.
If it is checked the phone never sleeps while charging, but unfortunately, due to an android bug I guess, won't return to his regular sleep schedule after disconnecting from the charger.
Please try this and let me know! It worked for me!
Click to expand...
Click to collapse
mine wasn't checked, still get pretty crappy battery life. Thanks though

Chuteboxe39 said:
mine wasn't checked, still get pretty crappy battery life. Thanks though
Click to expand...
Click to collapse
Do you have Spare Parts installed?
If yes, then you can see what exactly is using your battery.
My solution applies to those who constantly have near 100% awake time.
I hope you find your culprit soon!

Timescape is the culprit.
Force close it and remove it from your home screen and watch your battery life double.

Well i'm having the 100%, so i will defenitely give it a shot. Thank you.

augie7107 said:
Timescape is the culprit.
Force close it and remove it from your home screen and watch your battery life double.
Click to expand...
Click to collapse
You speak my words absolutely right Timescape is the Main Battery sucker and nothing else. I removed it Days ago including of closing the Process in Taskmanager. my battery Life got up from 7 Hours to 16 Hours. Nothing else had effect for me even changing the Launcher to Helix or whatever.
Timescape / Mediascape is what sucks the X10 down.

No timescape on my homescreen and stay awake is not checked...still batterylife is lousy
Its fine when its not being used but as soon as i start using apps or use the phone in general, the battery drains fast.....

I reset the phone after unplugging it in the morning after a full charge, and my battery lasts a good 18 hours. Thats with Wifi on 75% of the time and 3g always on.

forzanerazzurri said:
I reset the phone after unplugging it in the morning after a full charge, and my battery lasts a good 18 hours. Thats with Wifi on 75% of the time and 3g always on.
Click to expand...
Click to collapse
Wow....thats great...how did you manage that?
could you guide me through what settings you use please
cause with wifi on ....i get like half a day!

3 to 4 days with wi-fi off,3g off and gps on......................
don't twit or face though.

After being fed up with barely making it throughout the day, I decided to perform the following experiment:
1) wiped the phone clean (factory reset);
2) did NOT configure my google account with the phone to avoid needless sync with google as well as all those processes running in background no matter data connection available or not;
3) disabled data (as that line I am testing the X10 on has no data plan on it);
4) switched off location services; removed every single widget from the home screens;
5) installed HelixLauncherDONUT and left default widgets + added SE's digital clock;
6) installed startup auditor to prevent stuff like timescape from starting
7) contacts/settings/show status updates changed from all to none
Now after 24 hours and 45 minutes since unplugged phone has 88% battery left!!! There was no usage beside me checking stats every few hours. Phone is set to 3G, so switching to 2G may yield even better results.
Before this test I have done exactly the same test with the only difference of Google account being enabled on the phone (with sync disabled). No matter there was no data connection at all, phone went thru 20% of battery in just 6 hours with same usage pattern - 'no usage, just standby and checking every now and then the status of battery'. Not bad as with normal use of the phone I was been able to make it thru the day without shutting down due to battery empty.
Bottomline, I blame Google services for the excessive battery drainage in this phone. It is 1.6 'Donut' with its outdated google services 'at fault' IMO.
Hopefully with the planned Eclair update (lets hope Froyo too!) this situation will be addressed, at least to a certain degree.
Cheers!

leobg said:
After being fed up with barely making it throughout the day, I decided to perform the following experiment:
1) wiped the phone clean (factory reset);
2) did NOT configure my google account with the phone to avoid needless sync with google as well as all those processes running in background no matter data connection available or not;
3) disabled data (as that line I am testing the X10 on has no data plan on it);
4) switched off location services; removed every single widget from the home screens;
5) installed HelixLauncherDONUT and left default widgets + added SE's digital clock;
6) installed startup auditor to prevent stuff like timescape from starting
7) contacts/settings/show status updates changed from all to none
Now after 24 hours and 45 minutes since unplugged phone has 88% battery left!!! There was no usage beside me checking stats every few hours. Phone is set to 3G, so switching to 2G may yield even better results.
Before this test I have done exactly the same test with the only difference of Google account being enabled on the phone (with sync disabled). No matter there was no data connection at all, phone went thru 20% of battery in just 6 hours with same usage pattern - 'no usage, just standby and checking every now and then the status of battery'. Not bad as with normal use of the phone I was been able to make it thru the day without shutting down due to battery empty.
Bottomline, I blame Google services for the excessive battery drainage in this phone. It is 1.6 'Donut' with its outdated google services 'at fault' IMO.
Hopefully with the planned Eclair update (lets hope Froyo too!) this situation will be addressed, at least to a certain degree.
Cheers!
Click to expand...
Click to collapse
thanks for your info,
if i disable that many things, then i'd use my old Motorola v3.

henh said:
thanks for your info,
if i disable that many things, then i'd use my old Motorola v3.
Click to expand...
Click to collapse
Don't get me wrong. The experiment I've done is a "proof of concept" sort of - I am trying to figure out what is wrong with the battery usage in this phone.
If we look from your point of view, just to have the phone on standby and not using it, not Motorola V3, but a toy phone from the dollar store would suffice.

leobg said:
Don't get me wrong. The experiment I've done is a "proof of concept" sort of - I am trying to figure out what is wrong with the battery usage in this phone.
If we look from your point of view, just to have the phone on standby and not using it, not Motorola V3, but a toy phone from the dollar store would suffice.
Click to expand...
Click to collapse
oh, i know. i just upset with SE, we're here to find some solutions
it's so sad that we buy the phone for the look & the features, too bad that SE did a very bad job. now we have to wait for months to get an update from them, & still don't know it'll fix all the issues???

What I've found out is that most battery drain comes from apps. Install an app that monitors cpu time per app and cpu speed and load. Shortly after I got the phone I was about ready to throw it from a bridge or something because of the horrible battery performance. However, one day I noticed that the cpu was running at ~1GHz most of the time even though it's supposed to throttle down and match speed to need. I found out that one app had ALOT more cpu time that all other apps/services (a widget from DMI, the Danish weather service, in case you care). Once uninstalled, my phone could go through half a day with both 3G and Wifi enable and not even drop below 90% battery capacity - although only mild usage because I was working. Before, the battery went from 100% to like 60% during a night with 6-7hrs of sleep.
Finding out how to improve battery usage has definitely made me like the phone alot more, but I still wish HTC had made the software for it.
Regards - Martin

I get a good full day with my x10. I use Timescape but set the update option to NEVER so it only updates by tapping on timescape tile; i also turn of wi-fi when not in range of my home wi-fi, bt off, gps off (unless needed for maps).
I also trained the battery. Let power off by itself and charging full 4 or 5 times.

as for the google thing id suggest going into settings then data synchronization.. click google and uncheck background data.. it even tells you it will save battery and lower data usage.. whenever you use market though it will ask you to enable it in order to use it.
hope it helps!!

leobg said:
After being fed up with barely making it throughout the day, I decided to perform the following experiment:
1) wiped the phone clean (factory reset);
2) did NOT configure my google account with the phone to avoid needless sync with google as well as all those processes running in background no matter data connection available or not;
3) disabled data (as that line I am testing the X10 on has no data plan on it);
4) switched off location services; removed every single widget from the home screens;
5) installed HelixLauncherDONUT and left default widgets + added SE's digital clock;
6) installed startup auditor to prevent stuff like timescape from starting
7) contacts/settings/show status updates changed from all to none
Now after 24 hours and 45 minutes since unplugged phone has 88% battery left!!! There was no usage beside me checking stats every few hours. Phone is set to 3G, so switching to 2G may yield even better results.
Before this test I have done exactly the same test with the only difference of Google account being enabled on the phone (with sync disabled). No matter there was no data connection at all, phone went thru 20% of battery in just 6 hours with same usage pattern - 'no usage, just standby and checking every now and then the status of battery'. Not bad as with normal use of the phone I was been able to make it thru the day without shutting down due to battery empty.
Bottomline, I blame Google services for the excessive battery drainage in this phone. It is 1.6 'Donut' with its outdated google services 'at fault' IMO.
Hopefully with the planned Eclair update (lets hope Froyo too!) this situation will be addressed, at least to a certain degree.
Cheers!
Click to expand...
Click to collapse
To follow up on my test - 7 days, 18 hours with 3% battery left. Here is a quick video I made: http://www.youtube.com/watch?v=lt2YjrREgxg

for me i use Launcher Donut
and disable data and mms
settings > wireless controls > Mobile network settings > MMS & DATA
try it and tell me how much u will reach in the same daily using average

Removing Timescape & Mediascape totally from the home screens.
and disabling Data Sync>Gmail
battery life is showing huge improvement.

Battery Draining Bug?

I think I've discovered a bug on the X that's causing battery drain.
I installed Spare Parts and saw my phone had been unplugged for about 12 hours and that my phone was been Running (not sleeping) for 100% of that time.
After being methodical and getting data points after opening various programs, I determined that after I opened any program that accessed the GPS, the phone no longer would go into sleep mode.
To get the phone to start sleeping again, all I have to do is toggle GPS off and then back on again.
It's completely reproducible every time on my phone.
Now, I don't know what kind of effect this will have on battery life, but seems like it probably would have some effect.
If others can test this and see if it affect you at all, it'd be helpful to see if there's a potential major software bug here or if it's just something with my phone.
Easiest way to test is to start with a fresh reboot with GPS toggle on, install Spare Parts, plug in the phone for a second (to reset the counters), let it sit sleeping for a few minutes, then read the Running % in Spare Parts. Should be pretty low. Plug in the phone to reset the counters again. Then start Google Maps or any other program that will activate your GPS. Close that program and then let the phone sit idle for a few minutes. Check Spare Parts running time again and, for me, it's pegged at 100%.
It stays like that until I toggle the GPS off or reboot the phone.
Very curious to see if others get the same results.

lexluthor said:
I think I've discovered a bug on the X that's causing battery drain.
I installed Spare Parts and saw my phone had been unplugged for about 12 hours and that my phone was been Running (not sleeping) for 100% of that time.
Click to expand...
Click to collapse
I'm not trying to flame... but, after 12 hours your phone was unplugged, and still working... battery drain doesn't seem like a huge issue for me based on this information.
I would recommend an app called Tasker. I use it to turn gps off when it's not in use. I open google maps, gps starts. I close maps, gps off. I put my phone into the car mount, bluetooth starts, gps on, pandora on. unplug it, then everything off. I can have the cell radio off at night, but come on every 30 minutes to check for sms, email or whatever. I have Wifi turn on automatically when I get home, based on gps of course, and when I get out of the car, gps turns off and wifi turns on.
It saves a ton of battery for me, and might be something you'd appreciate. I have my phone running on performance mode all the time, and it still lasts all day and has 30+% to spare when I go to sleep. I'm a heavy user. almost 4GB of data this month with no tether.

That's not really the point.
The point is that there's potentially a bug with the phone that's not allowing the phone to go into sleep mode.
Seems like that might be a pretty important thing.

Point blank, the Droid X is one of the only Androids who last more than on day on the same charge! And what you all don't know is that if you use the blk taskbar and services.jar V.8 from teenfaces you will literally double or triple your life!
I have been unplugged for about 7 hrs and still have a sturdy 70%. All this with a normal discharge rate of about 5% every hour! That'd not bad! But then you have ATK set to aggressive... then the batt manager set to smart then cache mate running at full blast clearing caches every half hour. Plus the apps are killed and shut down when te screen ia off! So technically the X is dead till you power it up!
Take a look... I promise many will agree, that is if they did it right and are using V8.
Sent from my DROIDX via Telepathic DLNA.

What in the world is services.jar V.8 from teenfaces?
Ok, so then both of you are saying that the fact that the phone doesn't ever go to sleep once the GPS has been activated (even after the program that did so exists), isn't an issue?
Seems to me that you can only further improve battery life by having the phone sleep when it's not being used.
But who am I to argue I guess.

Seems like you dint understand my previous post. There is mod to change the task bar and shade. Like V8 is the latest with the services.jar replacment. Now how this affected my batt life i don't know, but, it did.
Now i see a lil longer batt life than with the original items.
Sent from my DROIDX via Telepathic DLNA.

this post is hilarious.
homeboy is trying to get bug testers, and people are talking about how to change the color of their taskbar : /

ixobelle said:
this post is hilarious.
homeboy is trying to get bug testers, and people are talking about how to change the color of their taskbar : /
Click to expand...
Click to collapse
Lol yea. Im gonna head home and try what ur saying. I use tasker for turning wifi on and off for maps and the new google places thing (because most of the time im in buildings) but maybe i should use it for gps too. My friend with the evo has his turned off all the time he says its a huge battery drainer. I say how could that be if it only runs when the icon is up. But this might just explain that as well.
Also other logging programs might keep it awak but this one ur suggesting doesn't i take it. Good to keep in mind. Will update later today
Sent from my DROIDX using XDA App

Sorry, I guess I'm lost/confused.
No one really has a concern that this is a potential system problem that's causing excess battery drain?

I do we still don't have an extended battery im very curious to what we can do with the battery life. If this is true id imgine tasker is the way we would go around fixing it. But went we getting 2.2 next week? Maybe that will fix it. Like i said when i get home im going to try what u said when i get home
Sent from my DROIDX using XDA App

Just noticed something, I formated my phone just today. (for some reason i had to activate again. is that normal never had to do that with my WM phone when i would put roms on it and stuff)
During setup it asked if i wanted to share anymous location info to google, which i know the fist time i said yes (actually maybe the guy at verizon said yes for me) in any case it says under it something "will anonymously collect your location data even if a location app isn't running"
which could explain why it stays on when the gps is on
if you can go into your system settings and it's on for you try turning it off and see if then leaving the gps switched on will still keep the phone on.

mavermc said:
Just noticed something, I formated my phone just today. (for some reason i had to activate again. is that normal never had to do that with my WM phone when i would put roms on it and stuff)
During setup it asked if i wanted to share anymous location info to google, which i know the fist time i said yes (actually maybe the guy at verizon said yes for me) in any case it says under it something "will anonymously collect your location data even if a location app isn't running"
.
Click to expand...
Click to collapse
I think that's the option in settings->privacy, which I turned off the other day, so I don't think that's it.

Good find. Seeing the same thing. Repeated your test, and yep, system stays on till gps is bounced.
Certainly doesn't look right. Is it that once satellite fix is established, it's maintained (even if not used)? And on GPS on/off, the fix is lost and the system forgets about GPS till it's actually called?
Next step would be to see how it affects power consumption. Will try to run some more tests later in the day.

Is there an easy way to test power drain? it'll be very interesting to see what effect this is really having.

lexluthor said:
Is there an easy way to test power drain? it'll be very interesting to see what effect this is really having.
Click to expand...
Click to collapse
Unfortunately with the Droid X only showing battery power in 10%, it's not easy to discern small differences without waiting for hours.
I wonder if looking at the voltage would offer more precision. But, not sure how reliable that is. After all, if it was, why wouldn't the 3rd party battery meters use that to show more precise % readings.

exempli_gratia said:
Unfortunately with the Droid X only showing battery power in 10%, it's not easy to discern small differences without waiting for hours.
I wonder if looking at the voltage would offer more precision. But, not sure how reliable that is. After all, if it was, why wouldn't the 3rd party battery meters use that to show more precise % readings.
Click to expand...
Click to collapse
You'd actually have to write an event for every single percent in the Android system for anything to detect the battery much more accurately and Motorola is too lazy to do that. Its only gonna show every 10% because thats what Android was programmed to show.

just an update, i said no to google doing it's data mining off my gps. but then i found in location, when i check "use wifi" it asked me again. My guess is thats how they know where you are when you turn on wifi, because if you want that feature you also have to be used in mining data of where the wifipoints are physically located.
So maybe that has something to do with it.

Saw this on Android Central Yesterday.
I can confirm it, when used with fancy widget. When standard weather app is used, no major power drain. Fancy widget seems to pin the GPS and run it hard the entire time.

hijackerjack said:
You'd actually have to write an event for every single percent in the Android system for anything to detect the battery much more accurately and Motorola is too lazy to do that. Its only gonna show every 10% because thats what Android was programmed to show.
Click to expand...
Click to collapse
I would think that if Android had 1% events some app would take advantage of it (there are certainly plenty of battery monitors in Market). But I don't know of any that show anything other than 10%. The HTC phones do 1%, and the battery widgets on HTC phones show likewise. Must be a Motorola implementation limitation.

[Q] Acer A500 Wifi, Extend Battery Life

Hello.
I did some google searches and i've found a thread where someone claim that:
* locating the directory /system/app -> PHONE.APK and TELEPHONY.APK
* removing or renaming this files, for example to PHONE.OLD and TELEPHONY.OLD
is the trick to extend the battery life, you'll earn a few hours. True or, ... a metropolitan legend ?

Don't advise it ....
matthew79 said:
Hello.
I did some google searches and i've found a thread where someone claim that:
* locating the directory /system/app -> PHONE.APK and TELEPHONY.APK
* removing or renaming this files, for example to PHONE.OLD and TELEPHONY.OLD
is the trick to extend the battery life, you'll earn a few hours. True or, ... a metropolitan legend ?
Click to expand...
Click to collapse
Well, lots of people are doing it, but it will apparently cause problems with updates, and may even brick your tablet if you update with those files renamed. Instead, just set your tablet to 'airplane mode' and turn on Wifi. My tab is getting 12 to 14 hours almost continuous use this way.
My advice is NOT to do it. We will be getting the Honeycomb 3.1 update in June, and it is supposed to address this issue.
Sent from my Iconia Tab A500
everythingiconia.blogspot.com

Thanks for your explanation

I just turn on airplane mode. i have to turn on wifi sometimes, but battery usage for cell is stopped.

This seems to work OK!! Thanks for the suggestion!

sometimes it can be so easy and even works without root

phone.ds said:
I just turn on airplane mode. i have to turn on wifi sometimes, but battery usage for cell is stopped.
Click to expand...
Click to collapse
I have been tried this from yesterday but no effect for me. Cell standby process eats 27% of battery consumption.

Can we make this subject a sticky?

Fantastic tip and working great for me. If you don't mind I would like to share this on another Android forum.

phone.ds said:
I just turn on airplane mode. i have to turn on wifi sometimes, but battery usage for cell is stopped.
Click to expand...
Click to collapse
Turning on Airplane mode did not work for me.
I am always in Airplane mode and if battery usage is accurate then cell standby is still the second biggest drain on battery (next to display).
This issue and the amount of bloatware are really my only two gripes with this tablet.

turning on airplane mode will not work. Rename those two files and just name them back when restoring or updating your tablet. Just don't forget or you'll brick it. My battery life is awesome when it sucked before

Turning on Airplane mode didn't seem to work for me either. The percentages are still much the same.

require to root the device ?

apple_hd said:
require to root the device ?
Click to expand...
Click to collapse
Yes, you need to root your device. Use Gingerbreak and then a good file manager, maybe Root Explorer (market.android.com/details?id=com.speedsoftware.rootexplorer&feature=search_result). It's not free but it's wonderful.

Get the "Acer Iconia Phone Disabler" app. It gives you easy, push-button support of this, and works flawlessly. If you decide to update, you just use the app again to enable the telephony services.
Darned near fool-proof.

jimbobtexas said:
Get the "Acer Iconia Phone Disabler" app. It gives you easy, push-button support of this, and works flawlessly. If you decide to update, you just use the app again to enable the telephony services.
Darned near fool-proof.
Click to expand...
Click to collapse
I don't have anything against paid apps. In fact my Iconia has got a lot of paid apps but this app seems useless. It does the same thing explained in this thread with 1 click. By the way, if you suggest paid apps, it's always a good thing to insert a reminder....

Why the hell this tablet have cell radio if we can't use it ?

Airplane mode
I agree that the battery use report still shows that cell standby is eating up the battery, up to 15% on my A500, however that does not change the fact that my battery life has increased to 12 to 14 hours on an average day of use.
Why don't you turn on airplane mode and turn on WiFi and use it that way for a day or two and see what happens? Maybe it doesn't work for you, but it is working for me and others.
You can't always believe what a report tells you, but you can usually believe what you observe for yourself.
My settings app also tells me my 16 gig external SD card is only 14 gig, but I know better than that. I can stick it in my laptop and it reports 15.something gig. Maybe the OS just thinks it is polling for service while in airplane mode, but in actuality it isn't.
And to repeat what someone else asked, why the heck does a WiFi only tablet have a cell radio in it anyway? Even if is part of the main board, it should have been diabled.

battery drain
kwparker80 said:
I agree that the battery use report still shows that cell standby is eating up the battery, up to 15% on my A500, however that does not change the fact that my battery life has increased to 12 to 14 hours on an average day of use.
Why don't you turn on airplane mode and turn on WiFi and use it that way for a day or two and see what happens? Maybe it doesn't work for you, but it is working for me and others.
You can't always believe what a report tells you, but you can usually believe what you observe for yourself.
My settings app also tells me my 16 gig external SD card is only 14 gig, but I know better than that. I can stick it in my laptop and it reports 15.something gig. Maybe the OS just thinks it is polling for service while in airplane mode, but in actuality it isn't.
And to repeat what someone else asked, why the heck does a WiFi only tablet have a cell radio in it anyway? Even if is part of the main board, it should have been diabled.
Click to expand...
Click to collapse
have you by chance run a battery monitor such as "battery monitor widget" that gives the mA rating of the power drain? Mine is still very high (400-1200 mA) when doing your solution. I'd be interested to know your drain b/c based on the projections I'd only have between 4 and 6 hours use, not the 12-14 you get. Thanks

tower107 said:
have you by chance run a battery monitor such as "battery monitor widget" that gives the mA rating of the power drain? Mine is still very high (400-1200 mA) when doing your solution. I'd be interested to know your drain b/c based on the projections I'd only have between 4 and 6 hours use, not the 12-14 you get. Thanks
Click to expand...
Click to collapse
There's absolutely no way to get 12-14 hours of continuous use out of this tab. I think many people reporting otherwise are counting sleep time as well.

I solved my battery drain problem

I was having a problem with fast battery drain on my SGS2. I would get 15 hours if lucky from a full charge with light - moderate use. My most recent charge looks like it has doubled the time.
What did I change? I did a factory reset and manually installed all my apps, NOT using titanium backup. I had used titanium backup to restore apps only, that were from my previous phone (Nexus1). I have never used titanium backup for system settings, only apps, but it seems even that is unreliable. I've now stopped using titanium backup completely.
Sent from my A500 using Tapatalk

Can anyone verify this...
Will it matter if it's i9100 to i9100, or just any other phone to i9100?

Well... Ive done several hard resets , because I though I had a network problem , and I many of those I didnt install titanium or even root the device and the battery life was the same.
Just one opinion..

mca1490 said:
Well... Ive done several hard resets , because I though I had a network problem , and I many of those I didnt install titanium or even root the device and the battery life was the same.
Just one opinion..
Click to expand...
Click to collapse
+1 for this..
Sent from my GT-I9100 using XDA Premium App

If you notice a higher battery drainage than normal then you have to see what application you've installed lately. If you can't find it then the only option is to do a Hard Reset. That has worked for me, IF your battery is drained by some app which you've installed lately.
Regards.

I am sure battery drain has to do with the apps we installed and the settings we use.
We are in a fortunate situation that my wife and I have both S II, hers is 2 days older from the same shop, so I assume both devices are from the same batch. Hence no hardware difference.
I installed a lot app and played with lots of settings and if my wife like it, she "demand" to install it on hers too, so hers is a more controlled env.
For some reason my battery drains a lot quicker than hers. I still have to find out which application / settings cause this.
For an experiment, we did not use both phones for a full day (very difficult), so all the drain is due to background processes.
There are several dips in the graph, but those are explicitly usage of the phone for a while. The big last drop on her battery was because she was playing a game for more than 3 hrs.
PS.
A collegue of mine (also an SII) had his battery run out quickly, until he found out his culprit: Settings->Location and security->Use wireless network was ON.
You can see the effect of this as the "almost horizontal bar" in my wife's battery when we turned it off.

thx for info man.

What would happen if i turn that off? I want to try this to preserve my batt life. Thanks!
Sent from my GT-I9100 using XDA App

PB_2003. You had to use one phone to make a shot of another phone? Just hold down the home key and press the power key. You will be able to take shots like the attached.

I have used TV to restore many times and battery life is fine. I'm would suggest that the issue is some app you are restoring rather than TB
Sent from my GT-I9100 using XDA Premium App

I wonder if having 3rd party launchers like launcher pro drains the battery quicker. I installed launcher pro without ever having really tested the battery life of the phone with the standard launcher. Has anyone here tested the difference, if any, of the battery life of standard v market app launchers?

pb_2003 said:
I am sure battery drain has to do with the apps we installed and the settings we use.
We are in a fortunate situation that my wife and I have both S II, hers is 2 days older from the same shop, so I assume both devices are from the same batch. Hence no hardware difference.
I installed a lot app and played with lots of settings and if my wife like it, she "demand" to install it on hers too, so hers is a more controlled env.
For some reason my battery drains a lot quicker than hers. I still have to find out which application / settings cause this.
For an experiment, we did not use both phones for a full day (very difficult), so all the drain is due to background processes.
There are several dips in the graph, but those are explicitly usage of the phone for a while. The big last drop on her battery was because she was playing a game for more than 3 hrs.
PS.
A collegue of mine (also an SII) had his battery run out quickly, until he found out his culprit: Settings->Location and security->Use wireless network was ON.
You can see the effect of this as the "almost horizontal bar" in my wife's battery when we turned it off.
Click to expand...
Click to collapse
The screen shot on the left is your phone correct? It looks like something is waking your phone up and leaving it in an awake state for far too long. Your graph represents over a day's time and I see those huge chunks of time where your screen is off but your phone is awake; I'd say some program is what do they call it *wakelock* every now and then.

Endoran said:
The screen shot on the left is your phone correct? It looks like something is waking your phone up and leaving it in an awake state for far too long. Your graph represents over a day's time and I see those huge chunks of time where your screen is off but your phone is awake; I'd say some program is what do they call it *wakelock* every now and then.
Click to expand...
Click to collapse
By the looks of it, the screen was on the entire time (which seems impossible?).

ithehappy said:
If you notice a higher battery drainage than normal then you have to see what application you've installed lately. If you can't find it then the only option is to do a Hard Reset. That has worked for me, IF your battery is drained by some app which you've installed lately.
Regards.
Click to expand...
Click to collapse
it's not just the apps that was just installed. It should include apps that are updated. I had this issue on SGS I when beautiful widget was having issues with updates causing the phone to use more battery power than usual

Morel likely to be a bad app, or a bad app setting causing the app not to close properly then drain power than the mere fact you restored it via titanium.

anyone one trying while sleeping, off your packet data ?
for me i tested,
2350 @100% to 0700 @ 99% (during packet data off)
If on, it will left 70% ++ in the next morning..
why is that so?

This is my battery drain using Litening ROM 1.5
I usually make and receive 30min phone call a day, push email on 2 accounts, wi-fi at work, data always on.

luexi said:
anyone one trying while sleeping, off your packet data ?
for me i tested,
2350 @100% to 0700 @ 99% (during packet data off)
If on, it will left 70% ++ in the next morning..
why is that so?
Click to expand...
Click to collapse
Turning off data packet doesn't allow any application going on line (unless you have your wifi on) and cannot download e-mails, synchronize anything, etc..
This saves your battery a lot.

Endoran said:
The screen shot on the left is your phone correct? It looks like something is waking your phone up and leaving it in an awake state for far too long. Your graph represents over a day's time and I see those huge chunks of time where your screen is off but your phone is awake; I'd say some program is what do they call it *wakelock* every now and then.
Click to expand...
Click to collapse
Yes, that is also what I suspect. It is just to find out what which application / settings this cause.
I found out that I have 4 apps has an "sync" account, I delete all of them (except gmail), now I got a lot better performance (1 day: still 75%).
I'll post later my picture

ph00ny said:
it's not just the apps that was just installed. It should include apps that are updated. I had this issue on SGS I when beautiful widget was having issues with updates causing the phone to use more battery power than usual
Click to expand...
Click to collapse
Of course the updates are included. There should be an app/good optimized app which will allow us to close the apps and thus Auto Sync and Background Data to off when we are not using them, especially at bed time. The in built task manager's RAM Clearance function is crap and frankly I haven't found an app which will optimize the RAM without force losing the apps/widgets. Tried 'Gemini App' but I doubt! This 'Sync' stuff is the main responsible part of high battery drain.
Regards.

Question about sleep in Iconia Tab

Hello all,
Trying to find some info about some behaviour my Iconia has.
I love my device. Way more capable than my wife's Ipad and all that. There's only one thing that irks me: battery drain while the device is idle.
I also have a B&N Nook 1st gen (for books) and an EVO 4G. I leave and use the Iconia mostly at home, close to the WiFi. I'll take it out for long trips and such, but it stays close. I have it set up so that the WiFi antenna turns off when the screen does. Low brightness on the screen, will only charge the battery when it's low enough to charge, etc. It stills drains close to 6-8% if I leave it alone a couple of hours.
Earlier today I rooted the device and use Bloatware Freeze to freeze some stuff. Eventually I'll get rid of some of the gunk the tablet has installed. I want to figure out how to shorten that gap. It doesn't make a whole lot of sense to me that the tablet left alone consumes 8% of battery charge! I mean, if nothing can be done then so be it, I'll learn to live with it.
For my money I would bet that there is something hidden in the Iconia's OS build that thinks it is a 3G/4G device. Now, I'm wondering what would happen if I were to take the next (logical) step and put another ROM in it. Would this make a difference? If I can make the battery drain stop at 5% or less, that would make this perfect.
Thx!

citizenklaw said:
Hello all,
Trying to find some info about some behaviour my Iconia has.
I love my device. Way more capable than my wife's Ipad and all that. There's only one thing that irks me: battery drain while the device is idle.
I also have a B&N Nook 1st gen (for books) and an EVO 4G. I leave and use the Iconia mostly at home, close to the WiFi. I'll take it out for long trips and such, but it stays close. I have it set up so that the WiFi antenna turns off when the screen does. Low brightness on the screen, will only charge the battery when it's low enough to charge, etc. It stills drains close to 6-8% if I leave it alone a couple of hours.
Earlier today I rooted the device and use Bloatware Freeze to freeze some stuff. Eventually I'll get rid of some of the gunk the tablet has installed. I want to figure out how to shorten that gap. It doesn't make a whole lot of sense to me that the tablet left alone consumes 8% of battery charge! I mean, if nothing can be done then so be it, I'll learn to live with it.
For my money I would bet that there is something hidden in the Iconia's OS build that thinks it is a 3G/4G device. Now, I'm wondering what would happen if I were to take the next (logical) step and put another ROM in it. Would this make a difference? If I can make the battery drain stop at 5% or less, that would make this perfect.
Thx!
Click to expand...
Click to collapse
I leave my device with airplane mode checked, and then re-check wifi (as airplane mode will initially turn off your wifi). I get no strange programs showing up in battery usage now.

Will certainly try...
I'll try this next time I head out. Will leave her in Airplane Mode and will check the battery level when I come back.
I did disable the GPS and all location settings. I do not need it to know where I am, since I have the EVO for that.

citizenklaw said:
I'll try this next time I head out. Will leave her in Airplane Mode and will check the battery level when I come back.
I did disable the GPS and all location settings. I do not need it to know where I am, since I have the EVO for that.
Click to expand...
Click to collapse
Right on, let us know if that helps ya out

Well I'm glad I came across this. I didn't even think about leaving the GPS on and consuming battery. Also, where did you adjust for your wifi to turn off when the screen goes off?
EDIT: Nevermind, I found it.

I am developing an app that uses bluetooth and I noticed that if I leave bt on my tab will go dead in 2 days, if I turn it off it can stay idle for several days before needing a charge. I leave the wifi on all the time.

citizenklaw said:
Hello all,
Trying to find some info about some behaviour my Iconia has.
I love my device. Way more capable than my wife's Ipad and all that. There's only one thing that irks me: battery drain while the device is idle.
I also have a B&N Nook 1st gen (for books) and an EVO 4G. I leave and use the Iconia mostly at home, close to the WiFi. I'll take it out for long trips and such, but it stays close. I have it set up so that the WiFi antenna turns off when the screen does. Low brightness on the screen, will only charge the battery when it's low enough to charge, etc. It stills drains close to 6-8% if I leave it alone a couple of hours.
Earlier today I rooted the device and use Bloatware Freeze to freeze some stuff. Eventually I'll get rid of some of the gunk the tablet has installed. I want to figure out how to shorten that gap. It doesn't make a whole lot of sense to me that the tablet left alone consumes 8% of battery charge! I mean, if nothing can be done then so be it, I'll learn to live with it.
For my money I would bet that there is something hidden in the Iconia's OS build that thinks it is a 3G/4G device. Now, I'm wondering what would happen if I were to take the next (logical) step and put another ROM in it. Would this make a difference? If I can make the battery drain stop at 5% or less, that would make this perfect.
Thx!
Click to expand...
Click to collapse
Wow I don't even have 8% drain with Wifi on all the time. There maybe something else in the mix. Most of my drain is the screen as I set it to auto and in my home it ramps up brightness most of the time. Is it possible you have a rogue app? Have you tested the tablet 'fresh', ie: after a factory reset with 1 google profile set up?

Neoprimal said:
Wow I don't even have 8% drain with Wifi on all the time. There maybe something else in the mix. Most of my drain is the screen as I set it to auto and in my home it ramps up brightness most of the time. Is it possible you have a rogue app? Have you tested the tablet 'fresh', ie: after a factory reset with 1 google profile set up?
Click to expand...
Click to collapse
This is interesting, on 3.01 & 3.1 I've had zero drain with screen off w/up to 16 hrs. Settings : Wi-Fi disconnect policy never when plugged in, location & security use wireless networks on & gps on. Airplane mode , always off. I can't understand why you folks are having these problems. Hope we find out. Oh & by the way that's not charging.
Forgot to mention I use Juice Defender.

Update
Well, after much tweaking I think I'm somewhere where I feel comfortable. As a disclaimer I don't take the Iconia with me on my daily commute. Again I take my EVO and my Nook with me. The tablet spends the entire time I'm out in the office at home, unused.
I disabled all screen animations and I'm using the tablet on the lowest brightness setting.
I disabled the GPS and all location-related settings.
I rooted the tablet and am using Bloat Freeze to freeze/disable some of the Acer 'junk'.
I put the table in Airplane mode before heading out.
Last night when I went to bed I didn't use it (I was reading a very good book and I did not use the tablet to watch any of my shows). So I put it in airplane mode after I played with the new Google Music app (Impressive!). I went to bed around 11:00 and woke up at 5:00. In this span of time, battery went down by 1%.
Used it this morning to tweet, check a couple of websites, email. Was @ 71% at 7:00AM. Came back close to 7:00PM. Battery was at 67%. Right now (8:50 EDT) it's at 1d 19h 55m on battery @ 59% charge. Heavy usage of TweetCaster, TuneIn Radio, Browser, Market, &c.
Mind you, it was not used for close to 8-9 hours or more. If I were to take it with me the consumption would be more, but then I would probably use Airplane mode when it was not in use. Besides, I can't use it at work b/c the wireless is not compatible.
I'll keep doing some research, but I'm comfortable. I accept the fact that it will drain regardless, since the OS is up. The previous consumption was too much, and I think I can live within the 2% - 4% consumption rate. If it can go down to 1%, though, that would be even better.
Any other ideas welcome.

beautiful Widgets comes with a widget to disable/enable wifi like we're all used to on our phones.
I loaded prime 9.3 today because I wanted to try a 3.2 rom (for GPS and sd-card reasons). On that rom I noticed the 3g settings were visible until I added the line "ro.carrier=wifi-only" to build prop. I was able to see cell standby show up in batt usage.
Not sure if you guys knew it or not but under battery usage you can click on the graph to see a graphical depiction of what hardware used the battery when. If GPS was active when it shouldn't have been you'll see it there.

Interesting...
Are you suggesting that the 3g apk is active on the 3.1 image? I posted this question to a developer in Market that has an app that kills this on the Iconia. Maybe that's the other 2% - 4% I can kill.

Prime is a 3.2 rom. You could try adding that line and rebooting though.

To the stock 3.1 image? Interesting. Any instructions?

You'll need an app like root explorer that will let you mount the /system partition as read/writeable. In the /system directory there will be a build.prop file that you can open with a text editor (root explorer has this feature built in). You'll see many "ro.xxx" lines. At the end of the first group you'll just need to add the line "ro.carrier=wifi-only" without the quotes. Save and exit the file. Reboot tablet. On reboot, it will read the values in build.prop.
On the prime 3.2 rom, the settings for mobile networks are visible without that line added to build prop. I was actually seeing cell standby in the battery usage list. I never saw that on the stock rom. I use a toggle button for the wifi to quickly turn it on/off from the home screen and that keeps wifi from using any battery while sleeping..
I really doubt that GPS is the culprit in your case. Did you click on the battery usage graph to see what hardware was using the battery during the period of sleep?

Also remember
The % charge that the system reports is not always a very accurate indication of how much charge your system actually has - what matters is up time and how long you can go between charges.
Airplane mode is your friend - no real need to disable animation (has nothing to do with idle charge) - the only thing I do is enable airplane mode when away from charger and not using my tab - some of the drain you are reporting could be due to your system scanning for open hotspots.
Also remember all it takes is one poorly coded app to totally screw your battery over - as you are rooted, quite easy to check for apps that relaunch themselves even after closed, apps that want to phone home every 60 seconds - etc.
Would highly recommend you take a close look at any non-stock apps that you have installed.