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View Poll Results: How is your battery Life in ICS?
Better 19 34.55%
Same 9 16.36%
Worse 27 49.09%
Voters: 55. You may not vote on this poll

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Old June 25th, 2012, 01:13 PM   #1 (permalink)
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Default ICS 4.0.3 Battery Life

How is everyones battery life on ICS compared to Gingerbread?

For me I am seeing twice as much battery left at the halfway point in my day.

My previous measurements in Gingerbread had my phone sitting at 30% at 2pm on an average typical day at the office with 2 exchange accounts and tons of email.

Today what I am seeing even with lots of playing around with ICS is 63% at 2pm which is more inline with what I was seeing previous to the Gingerbread update.
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Old June 25th, 2012, 01:46 PM   #2 (permalink)
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Default Battery same

I noticed in gingerbread that my OS consumed more battery than my screen. With ICS, the OS consumes levels of magnitude less, but the display now consumes almost twice as much... I have a live wallpaper (this should go on OS while screen is turned off though). I have the screen set to minimum brightness and 15 sec delay to shut off. I got no explanation on why it uses much more... Overall, I'm having the same battery consumption.
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Old June 25th, 2012, 01:53 PM   #3 (permalink)
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my consumption yesterday after the update was huge, but I was using the phone heavily. Most of it was voice calls and screen. I have my screen on auto. Just did a factory reset. I will vote in a couple of days after things settle down.
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Old June 25th, 2012, 06:50 PM   #4 (permalink)
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At 11.5 hrs, I am still at 60 percent battery life. That is after a day of heavier than normal use including taking and uploading via 4g around 20 pictures. Recording a video and uploading via wifi. Having sync on all programs... gmail, facebook, and exchange. Standard texting, and generally messing around with it to see what ICS has to offer.

I would probably be in the 30% area with Gingerbread and sync turned off for all apps. I did turn off wifi and gps during the day out of habit with Gingerbread.

I'm liking it.
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Old June 25th, 2012, 07:00 PM   #5 (permalink)
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For the record, do you want only stock ICS, or do you want to hear from rooted users as well?
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Old June 25th, 2012, 07:15 PM   #6 (permalink)
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Quote:
Originally Posted by lunatic59 View Post
For the record, do you want only stock ICS, or do you want to hear from rooted users as well?
That's a good question, I was thinking this would be a good comparison between the samsung/att Gingerbread and the new samsung/att ICS. Ideally it would provide some information to users that are contemplating upgrading to 4.0.3 in order to fix the battery life issues introduced in the previous version.
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Old June 25th, 2012, 08:00 PM   #7 (permalink)
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With wifi on... I am not impressed so far. I will turn wifi off and see what happens.
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Old June 25th, 2012, 09:48 PM   #8 (permalink)
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My test were with wifi on and at the point I normally would have 30% I am above 60% with a lot more usage.

Having said that I was a victim of the Gingerbread battery drain bug and the huge increase may just be a artifact of that bug going away. People who didn't have the Gingerbread issue may not notice a dramatic change.
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Old June 26th, 2012, 12:03 AM   #9 (permalink)
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I'm about the same.



- WiFi, GPS off
- Sync on all apps
- Display 100% brightness
- No power saving
- Approximately 45 minutes of voice calling
- Approximately 1 hour of text messaging
- Display was constantly on today, as I was tinkering with ICS for the first time.

I was able to get Gingerbread 2.3.6 to last two days without a charge and still have some battery to spare, but that was with bouts of very little usage. We'll see how ICS goes...
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Old June 26th, 2012, 03:34 PM   #10 (permalink)
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I have android system is 33% of power usage and voice calls 35%. The rest is cell standby at 13%, screen at 9%, etc. Is that normal for the android system to use so much power?
On a related note, I tried to take a screenshot of my power use screen, but I don't know where to go after you press the power button then the home button. Where does the picture go?
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Old June 26th, 2012, 04:12 PM   #11 (permalink)
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I am just hoping the wifi bug of 2.3.6 will no longer be an issue....
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Old June 27th, 2012, 02:22 PM   #12 (permalink)
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Ok , I just voted, and said it was worse. at idle it's about the same, but when I use the phone for voice calls or wifi, battery life takes a nosedive.
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Old June 27th, 2012, 08:11 PM   #13 (permalink)
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Quote:
Originally Posted by wolfyboy359 View Post
Ok , I just voted, and said it was worse. at idle it's about the same, but when I use the phone for voice calls or wifi, battery life takes a nosedive.
So, it's not my imagination. I find the same issue.
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Old June 28th, 2012, 01:59 PM   #14 (permalink)
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Try calibrating your battery? Seems like it was a key point with GB and quite likely, it is with ICS as well.

--Wag--
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Old June 28th, 2012, 02:14 PM   #15 (permalink)
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Quote:
Originally Posted by LouWags View Post
Try calibrating your battery? Seems like it was a key point with GB and quite likely, it is with ICS as well.

--Wag--

@louwags: could you please post a link to the post that describes how to calibrate your battery?
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Old June 28th, 2012, 03:01 PM   #16 (permalink)
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this poll is a little misleading because battery life is primarily dependent on personal phone usage. My so-so ICS battery life may not mean anything because i might use more data-intensive apps that cause wakelocks (just an example) and it isn't the fault of ICS at all.

Quote:
Originally Posted by LouWags View Post
Try calibrating your battery? Seems like it was a key point with GB and quite likely, it is with ICS as well.

--Wag--
Quote:
Originally Posted by wolfyboy359 View Post
@louwags: could you please post a link to the post that describes how to calibrate your battery?
it all depends on the phone. Some phones don't need battery calibration (like the i777 GS2) - at least according to some GS2 devs over on XDA.
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Old June 28th, 2012, 03:57 PM   #17 (permalink)
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With enough data points you can make some correlations to in regards to whether battery life is better as a whole or not.
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Old June 28th, 2012, 04:42 PM   #18 (permalink)
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I noticed about 15% better battery life so far. Usually my phone is fully charged when I go to bed and 15% when I wake up and now its about 30% when I wake up. God awful battery life but now a tiny bit better. still not acceptable if you ask me but still better.

I do not use my phone for talking, all data and text. Wifi left on Gps off. Animated screen saver on always

I will get the S3 if the battery life is better, I cant imagine it being worse so I probably will get the s3 but NOT in blue or white... will wait for black to come out on ATT
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Old June 28th, 2012, 08:19 PM   #19 (permalink)
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Much better battery life.Before update I would be around 35% at 1PM.7 hours after removing charger.I am at 15 hours now and still have 62% charge.This is with moderate use.
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Old June 29th, 2012, 08:28 AM   #20 (permalink)
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Battery life was half what it was before my upgrade from GB. I did a hard reset, and now battery life is the best it has ever been.

Stock, unrooted, by the way.
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Old June 29th, 2012, 09:44 AM   #21 (permalink)
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I am having some sort of problem with my screen using up all my battery. Flashed a new rom and same thing.
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Old June 29th, 2012, 11:12 AM   #22 (permalink)
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Quote:
Originally Posted by robhs View Post
Battery life was half what it was before my upgrade from GB. I did a hard reset, and now battery life is the best it has ever been.

Stock, unrooted, by the way.
same here. hard reset and my battery lasts much longer.
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Old June 29th, 2012, 11:39 AM   #23 (permalink)
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it seems like everyone is getting better battery life, not me though, it consumed more when i left it when i go to bed (idle). are you guys using touchwiz launcher or some other 3rd party launcher such as apex or nova?
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Old June 29th, 2012, 04:23 PM   #24 (permalink)
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Quote:
Originally Posted by wolfyboy359 View Post
@louwags: could you please post a link to the post that describes how to calibrate your battery?
I'll have to find it. If I do, I'll put it here: [Couldn't find it. See below.]

Quote:
Originally Posted by nyydynasty View Post
it all depends on the phone. Some phones don't need battery calibration (like the i777 GS2) - at least according to some GS2 devs over on XDA.
You're probably right but it's something else to try if you're still having problems.

Some further observations: I left my wireless on yesterday and also installed a stock watcher app. The app constantly updated throughout the day and within an hour, the battery life slid WAY off. Still, it was at over half when I finally checked out for the night.

Today, I've left the wireless on and I'm at 75%. Tomorrow, I'll shut it off and see how that does.

--Wag--
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Old June 29th, 2012, 04:32 PM   #25 (permalink)
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From my flawed memory, to calibrate your battery, let it drain completely. That is, until the phone shuts off. Help it quit by turning on EVERYTHING. :-)

Plug it in and recharge it completely. When it's fully charged, unplug it. Then, IMMEDIATELY turn it off. Leave it off for about 30 seconds, then turn it back on.

All the stuff you turned on in step 1, turn it all back off so that you have an apples to apples comparison for whether or not this did any good.

I'd be very interested to know if this helps. It seemed to do a world of good when I was on GB.

--Wag--
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Old June 30th, 2012, 03:20 PM   #26 (permalink)
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Turning off the wireless makes a huge difference. Today, I haven't used the phone much at all and with the wireless off, after 7 hours 20 minutes, it's at 97%.

Of course, using the phone the way it's meant to be used is going to make a big difference.

--Wag--
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Old July 1st, 2012, 12:51 PM   #27 (permalink)
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Last night I did what lunatic59 suggested. You HAVE TO DO A FULL FACTORY RESET. Meaning you have to reformat the device memory, usb storage, and your SD card if you have one installed. Just make sure you backup your important files. I was having horrible battery life as well until I did a full factory reset. Now I'm having amazing battery life and I'm using stock ICS.
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Old July 1st, 2012, 04:22 PM   #28 (permalink)
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Quote:
Originally Posted by sluggo33 View Post
At 11.5 hrs, I am still at 60 percent battery life. That is after a day of heavier than normal use including taking and uploading via 4g around 20 pictures. Recording a video and uploading via wifi. Having sync on all programs... gmail, facebook, and exchange. Standard texting, and generally messing around with it to see what ICS has to offer.

I would probably be in the 30% area with Gingerbread and sync turned off for all apps. I did turn off wifi and gps during the day out of habit with Gingerbread.

I'm liking it.
Are you running stock? Or are you rooted?

What about any battery apps like juice defender?

Thanks!
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Old July 1st, 2012, 04:25 PM   #29 (permalink)
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Quote:
Originally Posted by wolfyboy359 View Post
I have android system is 33% of power usage and voice calls 35%. The rest is cell standby at 13%, screen at 9%, etc. Is that normal for the android system to use so much power?
On a related note, I tried to take a screenshot of my power use screen, but I don't know where to go after you press the power button then the home button. Where does the picture go?
Gallery -> Screen Campture
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Old July 1st, 2012, 04:27 PM   #30 (permalink)
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Quote:
Originally Posted by LouWags View Post
Turning off the wireless makes a huge difference. Today, I haven't used the phone much at all and with the wireless off, after 7 hours 20 minutes, it's at 97%.

Of course, using the phone the way it's meant to be used is going to make a big difference.

--Wag--
Are you using stock or a 3rd party launcher like Nova or Apex?
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Old July 2nd, 2012, 01:06 PM   #31 (permalink)
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Quote:
Originally Posted by gianmarco View Post
Are you using stock or a 3rd party launcher like Nova or Apex?
100% stock.

--Wag--
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Old July 2nd, 2012, 07:42 PM   #32 (permalink)
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Calibrating the battery did not help. what did help was to do a factory reset. It's a pain, but it works. My battery life has improved exponentially.
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Old July 2nd, 2012, 09:12 PM   #33 (permalink)
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Mines worse. I'm having to charge it in the middle of the day and I'm using it just as much as before.
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Old July 3rd, 2012, 09:22 AM   #34 (permalink)
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Troubleshooting this is likely going to be a one-thing-at-a-time, process of elimination, er, process.

Start by shutting off your wireless and network functions for at least an hour, two would be better. Then check the battery graph. If it levels off, your problem likely has something to do with communications. If so, then you may want to go into each app that uses the communications and set the update frequencies to longer times. Check the settings in e-mail, FaceBook, Google+, etc. etc. Then see how it goes from there after you turn the comms back on.

If turning off the comms doesn't work, try turning off things like active wallpapers and other background processes. You may find it moderately useful to go to the task manager and Clear Memory. Only do this one time. It serves no purpose to bang away at this repeatedly.

One of the things I had to do with GB was to just delete all downloaded apps and then reinstall them one at a time and wait an hour or so to see if any of them were trashing my batteries. Found a couple of culprits and perma-deleted them.

The above is no solution by any means, but it may help to get you started. Frustrating, I know.

--Wag--
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Old July 3rd, 2012, 10:43 AM   #35 (permalink)
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Quote:
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Calibrating the battery did not help. what did help was to do a factory reset. It's a pain, but it works. My battery life has improved exponentially.

I know that doing this will basically reset my phone and make it seem like Its brand new.

Just to make sure though, diong this required you to redownload all your apps, correct?

What else did you need to do to get it back to normal?

thanks
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Old July 3rd, 2012, 10:33 PM   #36 (permalink)
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Just to make sure though, diong this required you to redownload all your apps, correct?

What else did you need to do to get it back to normal?

thanks[/QUOTE]

Make sure you have latest version of kies. Back up your music, pics, email, SMS you want to keep, and browser bookmarks. kies can be frustrating so be patient.

Your apps will download automatically. Once that's done, restore your stuff.

The most time consuming thing for me was to organize all my home pages, widgets and my docked apps.

I use google for calendar and contacts, so that wasn't an issue for me. If you use outlook you may have to make a sure you're all synched up before you do the reset.

It takes a while, but the difference on phone performance is amazing.

Good luck.
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Old July 4th, 2012, 05:25 PM   #37 (permalink)
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I have a samsung Galaxy S2 sgh-i777. When I 1st updated to ICS battery lasted 3h at best. I turned off phone did a 100% charge removed batterie for 3 mins put battery back in turned on phone and can now go 24h+ on a charge running wi-fi bluetooth and weather update every hour with pretty heavy usage.
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Old July 6th, 2012, 10:30 AM   #38 (permalink)
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Quote:
Originally Posted by FlyingPigL View Post

Make sure you have latest version of kies. Back up your music, pics, email, SMS you want to keep, and browser bookmarks. kies can be frustrating so be patient.

Your apps will download automatically. Once that's done, restore your stuff.

The most time consuming thing for me was to organize all my home pages, widgets and my docked apps.

I use google for calendar and contacts, so that wasn't an issue for me. If you use outlook you may have to make a sure you're all synched up before you do the reset.

It takes a while, but the difference on phone performance is amazing.

Good luck.
I did a hard reset of the OS as recommended (turn off phone, hold up and down volume buttons and power buttons together until menu appears, follow menu to do a reset). When the phone restarts, you can login into your google account and it will immediately download ALL the apps that were in your phone before, effectively installing them from scratch (automated = awesome).

The battery lasts much more just by doing that, yet there is one app that keeps consuming the battery a tad faster. I found it to be google play. If you hold the "home button", it will show you the tasks in memory. Swipe google play left/right to remove it from memory after using it and that's it! Battery now is LEVELS of magnitude more lasting than GB or ICS-upgraded.

stock ICS is good... Have fun!!!
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Old July 6th, 2012, 10:33 AM   #39 (permalink)
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I did a hard reset of the OS as recommended (turn off phone, hold up and down volume buttons and power buttons together until menu appears, follow menu to do a reset). When the phone restarts, you can login into your google account and it will immediately download ALL the apps that were in your phone before, effectively installing them from scratch (automated = awesome).

The battery lasts much more just by doing that, yet there is one app that keeps consuming the battery a tad faster. I found it to be google play. If you hold the "home button", it will show you the tasks in memory. Swipe google play left/right to remove it from memory after using it and that's it! Battery now is LEVELS of magnitude more lasting than GB or ICS-upgraded.

stock ICS is good... Have fun!!!
FYI, after a factory reset, the Play store will show a lot of power usage because it's syncing and restoring your apps. It should settle down on it's own.
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Old July 6th, 2012, 12:00 PM   #40 (permalink)
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Originally Posted by Dragonfire69 View Post
I have a samsung Galaxy S2 sgh-i777. When I 1st updated to ICS battery lasted 3h at best. I turned off phone did a 100% charge removed batterie for 3 mins put battery back in turned on phone and can now go 24h+ on a charge running wi-fi bluetooth and weather update every hour with pretty heavy usage.
After I upgraded to ICS my battery usage stunk bad. Could not get through day without having to throw back on charge. I was very unhappy. THen I saw the above, either this one specifically or one similar and I tried it. I am happy to say that my battery drain is to back to what it was before (I could at least make it to bedtime before needing charge) if not maybe a little better. I really cannot say if it is better yet. Anyway, thanks for the forums.
Now I wonder if I should try that resetting and reloading thing that people are talking about......?
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Old July 6th, 2012, 01:22 PM   #41 (permalink)
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A factory reset made all the difference for me. It's been a few days since I did the reset. Today I'm still at 82% at 11 AM after unplugging it around 3 AM (don't ask, the dogs knocked loose a pool hose and water leaked everywhere).
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Old July 10th, 2012, 07:15 PM   #42 (permalink)
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My battery life is horrible now. But I think it may be because my OS is sucking down a GB of data a DAY. I can't get it to stop. I've posted a thread and would be grateful for any help whatsoever. I turned off my backup, background stuff, etc.
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Old July 10th, 2012, 07:28 PM   #43 (permalink)
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My battery life is horrible now. But I think it may be because my OS is sucking down a GB of data a DAY. I can't get it to stop. I've posted a thread and would be grateful for any help whatsoever. I turned off my backup, background stuff, etc.
check out your thread. there are posts there.
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Old July 16th, 2012, 04:37 PM   #44 (permalink)
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Default Facebook sucks battery crazy!

I did a reset of the OS and Google Play re-installed all my apps automatically (huge battery drain). As I was told by lunatic59 (see above), Google Play would stabilize after all install and updates and battery would be better. I also did the drain battery and recharge fully (under USB - slower charging is better). Battery Life is PERFECT!!! Only 1 of my apps seems to be using the battery like crazy when loaded in the memory - Facebook. If I open Facebook, everything is ok, but when I press home or back, Facebook for some reason keeps updating (battery drain and data usage hog). I remove Facebook from active memory (hold home and swipe Facebook app left/right). Battery is perfect again. I have gone over 24 hours with going online sporadically, watching youtube videos and talking on the phone.
I noticed this by using CPUspy. When Facebook is under memory, it seems the CPU runs at 200 MHz, and doesn't go into deep sleep... I ran this test with several of my apps for about 3 weeks until I found the source.
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Old July 16th, 2012, 10:37 PM   #45 (permalink)
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In Facebook settings, turn off notifications. Also, set your refresh interval to a longer interval.

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