I have multiple Gmail accounts. You don't have to sync every category under each email. Also check Google talk. You maybe logged into all your accounts there. I'm on wifi at home and work so I save a lot of juice that way. But closing apps out is the number one way to save your battery. From experience with my S2 being mindful of those thing got me easily through a day.Light to moderate usage. I'm going on a week with my S3. I've only had to charge it twice. I'm impressed for a screen that size.
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Disappointed with my Galaxy S3
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Szadzik
Extreme Android User
Mine is the same on DLI5. I come back home after 12 hours and still have 50% of battery left.
rooting will not fix the phone.
Either you have a faulty battery or there is an app (maybe more than one) eating the battery.
There is an app called betterbatterystats, look on xda the guy who wrote it posted how to use it and help improve battery life. It will tell you what is chewing up the battery.
Dont give up with it just yet, see whats causing the problem, if you can't get anywhere exchange it, its possible you got a duff one.
Either you have a faulty battery or there is an app (maybe more than one) eating the battery.
There is an app called betterbatterystats, look on xda the guy who wrote it posted how to use it and help improve battery life. It will tell you what is chewing up the battery.
Dont give up with it just yet, see whats causing the problem, if you can't get anywhere exchange it, its possible you got a duff one.
kennychaffin
Android Enthusiast
At best it trains the battery monitoring software. It does not effect battery capacity.
There was a huge debate about battery chemistry, the workings of Lithium Ion technology, training batteries, and various other comments relating to battery performance. This needs to stop!
There are many factors to battery life in the first few days of usage.
1) User excitement. Let's face it, we all get excited when we get a shiny new toy and want to play with it a lot.
2) Sync. Everything needs to be synced. It may take longer than a few minutes to do so.
3) Updates. Often new devices have an OTA available upon opening or within a few days of the device release. Not to mention the apps contained in Android that need to be updated.
4) Android itself. Here's a big one. Android monitors everything. Including user habits. When a device is new, Android monitors your user habits. What apps do you like? What apps do you avoid? And it monitors the battery usage.
5) And other topics I haven't covered, but that's a different post.
This is where a lot of debate around a similar topic is and needs to be addressed by someone not involved in the debate. So here it is: Yes, it's a good idea to put your phone on the charger when you first get it, let it get a full charge, and leave it on the charger for awhile. Why? Not because of 'memory effect' or 'training the battery'. But because it forces the battery monitor software to acknowledge the phone is fully charged. Use the phone until it's down to 3% or turns off. Then a complete charge while the phone is on. I do this for every phone I get. It helps the battery monitoring code to get a fix on the full capacity of the battery. Because battery capacity will vary (in some small amount) from cell to cell.
Doing the charge from 0-100% while off does nothing for the battery monitoring software. So I always either connect the charger at 3% (Android is programmed to shut down at 3%) or, if it shuts off, I plug in the charger and force the unit to turn on manually.
So, in the end, if you're getting bad battery life and the phone is new, you factory reset it, or you just took an OTA, it's not abnormal. If it's after an OTA, do a factory reset and let Android settle in for a day. If it's still seems like the phone is still discharging faster than you think it should, then you should seek a replacement, as the device may be defective.
I hope this settles the battery dispute. If it doesn't, then I will likely lock this thread.
There are many factors to battery life in the first few days of usage.
1) User excitement. Let's face it, we all get excited when we get a shiny new toy and want to play with it a lot.
2) Sync. Everything needs to be synced. It may take longer than a few minutes to do so.
3) Updates. Often new devices have an OTA available upon opening or within a few days of the device release. Not to mention the apps contained in Android that need to be updated.
4) Android itself. Here's a big one. Android monitors everything. Including user habits. When a device is new, Android monitors your user habits. What apps do you like? What apps do you avoid? And it monitors the battery usage.
5) And other topics I haven't covered, but that's a different post.
This is where a lot of debate around a similar topic is and needs to be addressed by someone not involved in the debate. So here it is: Yes, it's a good idea to put your phone on the charger when you first get it, let it get a full charge, and leave it on the charger for awhile. Why? Not because of 'memory effect' or 'training the battery'. But because it forces the battery monitor software to acknowledge the phone is fully charged. Use the phone until it's down to 3% or turns off. Then a complete charge while the phone is on. I do this for every phone I get. It helps the battery monitoring code to get a fix on the full capacity of the battery. Because battery capacity will vary (in some small amount) from cell to cell.
Doing the charge from 0-100% while off does nothing for the battery monitoring software. So I always either connect the charger at 3% (Android is programmed to shut down at 3%) or, if it shuts off, I plug in the charger and force the unit to turn on manually.
So, in the end, if you're getting bad battery life and the phone is new, you factory reset it, or you just took an OTA, it's not abnormal. If it's after an OTA, do a factory reset and let Android settle in for a day. If it's still seems like the phone is still discharging faster than you think it should, then you should seek a replacement, as the device may be defective.
I hope this settles the battery dispute. If it doesn't, then I will likely lock this thread.
kurtyyyyyy
Well-Known Member
Someone mentioned jellybean will improve life, is this in fact true?
XplosiV
Master X is Watching You
JB is likely to be more refined and streamlined than stock ICS so there is a fair probability that it may give some degree of better battery performance. After all, the aim of an upgrade is to make things better not worse. However you can't guarantee that battery life will be one of the improvements of any update, but it's likely.
People who have installed leaked JB roms onto their rooted S3's are reporting better battery life, so the official update should be on par or possibly better than the leaks.
Not sure if anyone else mentioned this already but battery life is also heavily dependent on your reception. I have terrible reception in my office building regardless of carrier. Therefore the phone tries to boost power to the radios to get a better reception and my phone will drain very fast if it isn't plugged in at work. However everywhere else I go I have great reception and great battery life.
if you switched to S3 .. and changed carriers at the same time.
then you might be in a bad reception area of the NEW carrier.
if same carrier..
then bad radio or bad phone.. either case, have it tested and replaced.
if test show phone is ok.. and you did not change carriers..
then you have a rogue app that is not behaving.
-factory re-rest phone.. dont load any apps... wait and see.
-then load a few apps.. and wait n see. till you find the bad app.
-there are apps to watch your phone and tell you which is not sleeping. get rid of these apps.. plenty of other apps to use instead.
then you might be in a bad reception area of the NEW carrier.
if same carrier..
then bad radio or bad phone.. either case, have it tested and replaced.
if test show phone is ok.. and you did not change carriers..
then you have a rogue app that is not behaving.
-factory re-rest phone.. dont load any apps... wait and see.
-then load a few apps.. and wait n see. till you find the bad app.
-there are apps to watch your phone and tell you which is not sleeping. get rid of these apps.. plenty of other apps to use instead.
Evening everybody. This is my first post. I registered to this forum after i saw a link to it while looking for help with this same issue that others appear to be having. I've got an AT&T s3. Just got it last Friday. Over the weekend i didnt really notice any issues with the battery life. But today when i went to work it was a huge difference. Now i will admit. today I did about 1/2 hour to an hour of internet browsing. 10 minutes streaming music in the car over bluetooth. From when i left the house this morning at 7 the battery was at 100% and by 11:30 I was down to 34%. This made no sense to me at all. I was at 5% by 5. After charging it back to 100%, I started looking and came across tbis forum and within 20 minutes i was down to 88%. I'm currently on wifi. Earlier at work i wasnt. There is 4g in my area but I dont believe its LTE. I didnt have a ton of apps running and killed all the apps not being used. I do have to say, I've used an iPhone since the first gen and mostly recently used the iPhone 4. This is my first Android device. Im debating whether or not I made the right choice and looking for some help. Oh and while im at it (dont mean to hijack the thread) but is there any sort of spell check on this phone? And, I've tried to change the vibration pattern (like for when a text come through) and it stays on "basic call". So i can change it but it doesnt actually change it. Thanks folks! Sorry for the novel..
Easilyamused
Android Enthusiast
Welcome to the forums. First things first - download Gsam battery monitor from Google Play (yea, silly name right?) and charge your phone to 100 percent. Let it monitor your usage, and post the results. You can take screen shots by swiping across the screen with the edge of your hand. Your results will look like:
I'd also recommend checking out this thread: http://androidforums.com/samsung-galaxy-s3/618583-truth-about-your-battery.html
I'd also recommend checking out this thread: http://androidforums.com/samsung-galaxy-s3/618583-truth-about-your-battery.html
Easilyamused
Android Enthusiast
I'd try a normal days use before posting. I upload to Photobucket, then link that from my posts. There may be other ways, but I haven't done it any other way.
thahim
Android Enthusiast
It has been two days since i bought my phone, the battery life is not too good, my full charged phone just ended up in few hours today. But i know the battery life will get better after i give it few more charge cycles.
Tip: Fully charge your phone, after your battery is completely drained out, and do it every week or two, you will get a good battery life, and charging will last longer.
Tip: Fully charge your phone, after your battery is completely drained out, and do it every week or two, you will get a good battery life, and charging will last longer.
kennychaffin
Android Enthusiast
Myth. Just fully charge your phone. A few cycles will calibrate the battery monitor but has no effect on battery capacity.
The OTA JB leaks that I have tried (T-Mobile) all have better battery life than the latest official ICS release. Seems they fixed the standby battery drain rate. Before I updated to JB "Cell Standby" was using up a lot of juice.
You do not need to root to install the JB leaks, they patch official ICS.
Easilyamused
Android Enthusiast
I can't seem to view your attached files... and why are they .bmp?
edit: Ahhh it downloaded the .bmp rather than just showing them. From the looks of things your "android system" seems to be a very high %. Click on that to get a breakdown.
barryl85
Well-Known Member
Yous never actually read what people write!
He never mentioned the capacity would increase !!!!!!!
He said it would last longer - if thats due to the way the software calibrates the battery then so be it.
As i said before - when these phones are brand new the battery is dreadful - after a couple of weeks it gets a lot better:
PLEASE NOTE - BATTERY CHEMISTRY WAS NOT MENTIONED
kennychaffin
Android Enthusiast
Myth, the battery does not "get better" it stays the same. 
Why do you people insist on perpetuating these myths.
For another data point my battery (and probably most others) has worked the same, had the same capacity, from day one. Anything you are seeing otherwise is just your own fantasy.
Why do you people insist on perpetuating these myths.
For another data point my battery (and probably most others) has worked the same, had the same capacity, from day one. Anything you are seeing otherwise is just your own fantasy.
barryl85
Well-Known Member
Myth, the battery does not "get better" it stays the same.
Why do you people insist on perpetuating these myths.
For another data point my battery (and probably most others) has worked the same, had the same capacity, from day one. Anything you are seeing otherwise is just your own fantasy.
I see there's no point in continuing this discussion with you, as you cannot read.
I tried to click on that within the app and it didn't give me a break down. Is there somewhere else I should look..? Also, today the "android system" is only using 3%. I don't believe I've done anything different today. BUT... yesterday and today, the battery life has been a lot better..!