extermin8or

Now I don't have a Galaxy S2 but I saw this and had tot ake a look; I have the Galaxy Appollo and I have been getting this EXACT same issue :s and it's funny you should mention the USB port because mine is damaged in the same way and it's running android 2.2 I know it's an older model but the issue must be related :/

juo78

You have to re-calibrate your battery. My wife and I own galaxy s2. I am on ics 4.0.3, rooted but stock firmware and my wife's phone is on gingerbread, rooted but stock 2.3.3 . I think this will work regardless of your phone being rooted or not. This will re-calibrate your battery. Your problems happen when the phone operating system thinks the battery is 100% charged when physically phone battery is only 60%. Or vise versa when physical phone batter is 100% and operating system thinks its 60% (or what ever value). Hope this fixes all your battery problems. Dont worry, this happened to my phone and my wife's phone and all is well. Your welcome.

1) drain all of your battery untill phone shuts down

2) turn on and drain battery until phone shuts down ( repeat until you are unable to turn the phone on- this step is very important because we need to drain the battery competely)

3) take the battery out and wait 5 seconds or so and put it back in

4) Charge the battery while the phone is off

5) when the charge is 100%, take the charger off then charge again to get 100% again

6) turn on your phone and enjoy your new battery

mytrang

I had all of the problems listed in this forum. Phone said the SD card was unmounted, battery draining after only a few hours, and getting hot. I removed the battery and put it back in but this did not help. Finally, took it to a T Mobile store where they did a factory reset. After that, we discovered my SD card was not working but didn't know why as I never had a problem with it before. Replaced the SD card and then recalibrated the battery as directed by juo78. Phone is now fixed and battery has not needed to be charged for 2 days now. This was better than before it broke where I could get 1 1/2 days at the most. Right now it is still 1/2 charged.
Let's hope I don't have this problem again as I don't know what fixed it. Hoping it was the battery recalibration rather than the factory reset cuz that was a pain.

alextop30

Just two more tips - make sure once you get off of wifi you turn on the screen to push the phone to connect to the 4g/3g network and not register time without signal.

Also for even longer lasting battery Juice defender ultimate - My phone does 48 hours without charging the battery now - I am rooted and have the pro version of Titanium bakcup to get rid of the horrible bloatware apps!!!

Cheers

__________________
Is it bad that I like code???

amir88

I have the same problem as everyone else. I have the Telus version which is the same as T-Mobile, the only difference is that we are on 2.3.5.

My problem on the other hand is not high battery usage from Android system, it's from the screen !!
As you can see in thr picture, Android system is at 11%, but the screen is at 35%. I tested different brightness options and with all of them (Auto, Minimum and 50%) I get the same results.

Can anyone help me with my problem ? Maybe tell me to change some settings in my phone ? .. Im on stock and haven't rooted my phone yet.

alextop30

Did you follow juo78's steps on how to calibrate the battery? If you did there are very few things you can do for the screen. Try auto brightness or some really low setting. If you use your phone heavily like me display and dialer are always on the top. Juice defender is good idea to save battery while your screen is off - it uses a smart algorithm to turn data off and on so that most of the time there is no data on your phone and therefore there is very low battery loss during standby.

amir88

Thanks for the reply. Yeah I did caliberated my battery but no luck there. As you can see, I'm already using juice defender for few months, this issue happened around 2 months ago to me, I didn't have this problem before. I tried every settings on my phone but still no luck there.

orbiton

I just posted this on another thread but it was possibly more suited to this thread.

I recently got interested in this problem as two weeks ago my battery drain problems started and it would only last between 1-4 hours, and would take ages to recharge, and the phone was getting hot.

I went to the battery usage in settings and found that the OS was consuming around 70% of the battery. It was being drained rapidly even when in idle. The screen was also becoming hot at the top of the phone, an S2.

I downloaded betterbatterystats and found two processes being run pretty much constantly. They are svnet and svnet-dormancy. They are involved in the sending of data packets. I then checked my current data usage with my provider. This month it has gone from an average use of 40mb per month to 360mb and were only just over half the way through this month!!

So for me what is happening is that a process is constantly sending and receiving data packets. I wondered at first whether this was a faulty app so I bit the bullet and deleted all updates and downloaded applications. No joy. Still the same problem. I then thought maybe its a virus so I download a virus checker. Nothing. Still the same problem. Scratching my head now.

I then noticed the box in Settings/Accounts and Sync/Background data and unchecked this, problem solved. Battery back to normal, no heat problems, no recharging problems.

Whether this is a client or server fault I don't know. I have google/yahoo/facebook/exchange server account settings. I know of five people personally who have been affected by battery drain issues within the last month. I don't know why. Two have sent there phone back for repairs. Others are looking at exchanging their's for an iphone.

My temporary fix may not be the answer for everyone (as others may be experiencing a different problem causing similiar results) but it explains why my battery is draining so quick, why the phone is getting so hot, and why it takes so long to recharge.

On a side note, why is the android OS so user unfriendly to upgrade. You go to the settings/software update/check for updates (mine is android 2.3.3) and the phone says no update available, yet i know android 4.? something exists. Can someone point me in the direction of how you upgrade the OS. Thanks in advance.

lethalgorman

No coment other than the battery on my tmobile gs2 is only lasting 8 hours.To me that is a third of what I expect. Just wanted to put in my 2 cents . I hope someone hears and solves the problem . Im running 2.3.6

hlinssen

Just found this forum because of the same problem and thought I'd add my experience.
SGH I777: The last day or so battery drain became enormous (no exaggeration); power was being consumed faster than could be recharged!
Under settings - battery, I found that Gmail was using 60% of the power, and that even when I turned it off, killed it, force-stopped it, whatever I tried! Powering down and removing battery for 20 sec or so didn't change anything either.
I then decided to uninstall Gmail whereupon the system automatically reinstalled what was called the "factory version". After this Gmail's power consumption was very low for a while, but then it edged back up to ~24%, however, better than the 60% I was getting.
We'll see!

LouDaMan

I finally have my battery issue fixed, but only because I was getting my MacBook Pro looked at for its battery issue; which then led me to look at my new fones problem.
I just got this phone (TMobile) about a month ago, and upon getting it I connected to my MacBook to transfer files, etc.; a couple of days after this connection I noticed that my new Mac was draining its battery at an alarming rate. Took it to Apple store, and they did diagnostics, couldn't find anything, but replaced my battery under contract. Next day, same issues with new battery. I decided to check Activity Monitor and I find something called 'Kies WiFi' using 98% of my cpu's and battery! Did some research, and found it's a huge issue with MBP's. Removed the program completely. No more problems. I then checked my new fone, did a factory reset, and made sure that this program didn't get any updates, etc. My battery life on my fone is now great. With normal use (some email, internet, Facebook, Twitter, games, etc), I start off with 100% at 6AM, and I still have about 80% 12 hrs later.
Hopefully, this can help someone. It seems that the Kies program either has something wrong with it, or it's just structured to constantly seek out connections with the network for updates, etc.

Scoutamis

My highest thing is screen, which is at 56%. I wake up at 6:30am with 100% battery and by 2:30pm I'm down to 45% in standby with very very minimal usage...

joukek

THANKS VERY MUCH BANDALAR!
Your VERY EASY SOLUTION worked out! I did what you told: shut off phone - take battery out - put it in after a minute and I can use my phone again for a day without charging it after 3, 4 hours!

momsdear

hi pompeypimp...!
If u have Android 4.0.3 then

go to settings-----More-----Mobile Networks----Uncheck Use Packet Data
most probably this will solve the problem....i had same kind of problem some months ago, that was solved by this method....
post here if it is right or not?

ColonelAdama

I got my phone about october of 2011... kept it completely stock till about 3-4 months ago, when the (un)official ICS update was released (http://androidcommunity.com/atts-ics-update-for-the-original-galaxy-s-ii-leaks-20120326/). I had no problem with battery life before, or after the update. Recently though, the battery has just been getting worse. I had about 8 hours on a full charge. I had a ton of widgets and live wallpaper, so i figured those would be the culprit. I deleted those, hoping to double my battery life, but today i was horrified to find that, my phone, on standby, with no running background apps or anything, had died after only 4 and a half hours. I have already taken out the battery, restarted the phone. "Android OS" uses about 20-25% on the battery settings screen, while the screen uses anywhere from 20-50, depending on how I use it. I turned brightness all the way down also. Attempted to try "juicedefender" or other battery saving apps, none of which helped. I would take it back to the store to figure it out, but it has the 4.0.3, which is supposedly unofficial. So i don't think they would help. I don't think its the ICS causing the problem, but if it is, i wont hesitate to revert back to GB. This is a serious problem and needs fixing, because I need more than 4 hours a day :O

Any ideas how to fix it?

Thanks,
Colonel

Last edited by ColonelAdama; June 7th, 2012 at 04:28 PM.

binzie

My battery has been draining quickly too
bought a new one 2500mah and its still the same check this out


ity hasnt run off the end it has plummeted nearly 45%

greggster72

Hi this is my first post.

My GS2 5 months old working fine got ICS update no issues then all of a sudden battery problems charging done in about 2hrs , then dischargred in about 2hrs also getting message saying unplug charger voltage to high..... but it was unpluged ??? also battery light flashing until battery got below 50% then phone got roasting hot.

I believe this is a firmware update issue so i have sent my phone back to the supplier who have sent it to Samsung,i will update when it returns and what they have done.

droidlarry115

My Galaxy 2s is about 6 months new, and it is turned off whenever I am home.

Earlier today, when I checked, the battery was at 91%. Tonight, twice, while the device was in my pocket, I felt it heat up. How can it get hot when it is turned off??!!

After the second instance, I tried turning it on to see what could possibly be happening, but no luck. The Samsung would not turn on, and when I plugged in the charger, there was no visible response.

It seems as if the battery, sound asleep, just up and died. Is this a new issue here?

pablo skm

hi,
i just got my galaxy s2 4 days ago n now when i charge it indicates battery temperature hot.

how to slove this problem. pls help.

Oldschoolwax

Bring it in to a shop that sells T-mo and have them replace the battery for you. It could be a bad battery, it has been known to happen in many types of devices.

__________________
Currently Running
Android Zombie v4.0

danisa

I have a solution for this problem at least it worked for me... Go to setting..then wireles and network ..then mobile network and UNCHECK where it says USE PACKET DATA..... if you need to connect to the internet using the 4 g network just go back to the settings and check off where it says use packet data.... i hope this will solve the problem..

danisa

Go to settings... Wireles and network then mobile network...uncheck where it says USE PACKET DATA..that will solve the problem.

incognitas

Hi, I found this forum by looking for solutions to the same problem. I have just bought Galaxy S2 (second hand) and the battery does not hold charge (in this case of a picture I did not touch phone for all day neither made/received any call as I even removed a SIM card)
I checked "Battery usage" and noticed that "Cell standby" sucking the most of the batteries energy- even 75%!
What is Cell standby for? I am not using any SIM card with the phone.

epaulk

Hi! My father has a similar problem.


Anyone else with this problem notice an irregular data usage also?
My father S2 suddenly begun to use about 20-30 MB per hour (he normally use about 200 per MONTH!). Also the battery lasting halve of the time. Whatever is using the data, it also draining the battery?


Check this for more details:


http://androidforums.com/android-lounge/586589-samsung-galaxy-s2-became-data-hog.html#post4697753

Supageil

This is clearly a well known and unresolved problem Samsung have allowed to continue. I bought my Galaxy S2 just on four months ago and everything has been great until two days ago when just as most here have described, the unit started heating up very noticeably and the power was drained within three hours.

I bought the Galaxy S2 because I believed all of the positive language on the net about the phone, but now that I have spoken to three different people at Samsung Australia, all to no avail, and three people at JB HiFi (place of purchase), I have been reminded that just because people are willing to spend time with you when you spend doesn't mean they will do anything at all to help when things malfunction.

JB HiFi in Perth's EnEx100 arcade told me repairs could take up to two MONTHS, irrespective of the fact that I won't be in Australia in one month. Samsung told me this was the first they had heard of this kind of problem and that I must drive something like forty five to fifty kilometers from home to drop it in at their service center where I would need to allow two weeks on average, but it could take a month, because they have no idea what the problem is likely to be.

The 3rd person at JB HiFi to take a call from me did recognize the problem and said that resetting the unit may help. It hasn't - but at least she admitted to having seen the problem before and had an idea for me to try for myself before asking me to go phone-less for two weeks to two months!

Samsung have let the ball drop on this and I will wait to buy my next phone from some other company. Silly thing is, if they'd spoken to me reasonably and as though they gave a damn, and resolved the problem, I would have continued thinking about the Galaxy S3 as a possible near future purchase as well as a Samsung pad in a month before I move overseas again: Two lost sales for Samsung.

Last edited by Supageil; September 7th, 2012 at 05:39 AM.

mgbianc

I'm trying this reset method for my battery.

My phone continues to shut down because the battery is "dead," but keeps restarting. My phone has shut down and I've restarted it almost 30 times now. It won't completely die and not restart. Sometimes, it seems like it is going to and I take the battery out and put it back in and it restarts.

I'm taking this as an indication that juo78 is right and that my battery calibration is just way off. Once it completely dies and won't restart I'll complete juo78's recommendations for re-calibration and post my results here. It is probably extremely important that you restart it until it absolutely won't restart again...

Matt

mgbianc

It worked for me! Thanks juo78!

I probably had to restart my phone about 50-60 times before it would no longer restart. Then I recharged it with the phone turned off a couple of times.

Today, my battery lasted 11 hours (with light usage) before it died. That doesn't sound too great, considering much of that time was with the phone just standing by.

It is MUCH better, however, than what I was getting--which was about 5 hours.

Thanks, juo78!

elev11n

hi guys~
i also experienced this matter :

1. my S2 got drained within 3-4 hours, this is without turning on my wifi, data, GPS, Bluetooth or simply says i just let it in standby mode ; just for normal usage-texting & make/received call.

2. i've noticed this begin to happened when i'm using external battery charger from Kapersky, when i use it in a while my screen's phone can be 'auto rotate' even i already disable that function & suddenly turn into 'driving mode'.

3. then when i charge with standard samsung charger, it will notified 'MTP Connected" (it still charging, but it just like when i connect the phone to PC via USB)

4. & of course, the phone get hot at the back side.

* model : GT-I9100G on gingerbread 2.3.6

now i already done re-calibrate the battery, lets see how it goes~

before that, thx juo78

Steve Adams

I had battery drain with my s2x. I rooted and used a mildly modified îcs rom. Battery life went way way up! The phone is awesome now. Its so good that instead of upgrading to the s3, I bought a note for work instead.

CrackBaby

What is the name of the modified ics you used ?
(how do you,like the Note, btw? )

droidlarry115

After turning the the Galaxy 2s while charging, it would turn itself on within two seconds and the device would charge slowly.

Following a suggestion on one forum, I checked the cord plug at the phone end and removed a speck of whatever. It made no difference.

Then I checked the other end of the cord where it plugs into the mini-ac transformer and saw that it was not inserted all the way in.

I pushed it in all the way and that solved the problem.

chawlsun

If you are updated to ICS from GB, then you NEED to do a factory reset. Backup all of your data on the phone and do a factory reset via Kies when you plug your phone in. Sometimes a factory reset is all you need to put the new OS into place on the phone. In some cases the 2 OS's clash with each other after the update and the factory reset resolves that problem and implements the new OS (ICS).

akkidroid4u

Hey Guys! Hope you are up for reading my looooooooong post (plus rant)!

Need some help with my SGS2. I am facing similar problems as what seems like for millions other!

THE ISSUE: My phone keeps crashing randomly after my ICS update, and when it does the battery indicator shows a steep drop in charge. So this happens even when I have 85% battery charge, and on re-boot battery shows 35%... 50% of the battery seems to have pulled off a Houdini's disappearing act in a flash!

SOME FACTS:
1. I have a sim-free version of the SGS2 in the UK... and I know this is a T-Mobile thread...but really liked the discussions going on here thats why my post...
2. My phone is NOT rooted (and I do not intend to root it either)
3. I have upgraded to ICS using KIES v2.4, they have rolled out a KIES v2.5 just recently (after my upgrade), according to which I have the latest firmware too...
4. My phone: model number GT-I9100, Android version 4.0.4, Base brand version I9100XXLQ6, Kernel version 3.0.15-I9100XWLPT-CL941023 dpi@DELL169 #3

The Story so far:
Post my upgrade to ICS, my battery started draining rapidly, like others have experienced too, it went from lasting 16 hours (with the things I do) to less than 6 hours. Thats where the alarms started ringing, and I started my online search for a solution. First I tried the battery re-calibration (just like what Juo78 suggested). Well the next couple of days battery was back to the same old 16 hours lasting... so I was like EUREKA! problem solved!!! just when I started celebrating and started playing my fun HD games, my fone started crashing... for no rhyme or reason, it would just shut down and that to when i was about to beat my own high scores!!! Grrrr! well anyway, on reboot it would show a sharp decline in Battery usage anywhere between 35 to 50% drop... if I continued playing regardless, then in less than a minute battery would be down to 0-1%... so i tried the battery calibration again, but no difference in the behaviour. I then decide to live without my 'life changing' games... and battery usage was back to normal (it even felt better lasting than before at times)... I then decide to play non HD games (assuming that the HD games are probably conflicting with the 4.0.4 OS... but same problem occurs again... and got worse... even while browsing net, facebook, twitter, it would randomly shut down... so my next diagnosis is resource availability issue! I jump to the conclusion that too much going on in the background and I came across the suggestion that you can limit background processes to zero by changing the setting in DEVELOPER OPTIONS.... again EUREKA! it worked for a couple of days... but the problem returned much to my annoyance... Finally I had to do it - FACTORY RESET... so I backed up all my data and applications using KIES... I was so hoping that I do not need to erase my stuff... but had to bite the bullet... I restored only my contacts, messages and call logs... everything else was re-done... I installed every application again from the market again (not from my back up)... did that work?? HELL NO!!! I am still stuck with the same issue... battery usage seems fine when doing basic stuff on my phone... the 2-3 situations when it crashes are either when I am playing some heavy games, updating multiple apps from Play store, and once it happened while watching videos on youtube... my current feel is that resource availability is an issue, so i am now trying JuiceDefender to see if that helps... if that does not work, the next thing on my list is BetterBatteryStats... because honestly I don't think JuiceDefender works the same way as BetterBatteryStats (but I could be wrong)... I will try to upload a screenshot of the battery usage indicator... coz it did something very strange the last time it booted... my phone went from 76% before crash to 33% after boot... but then it was rising...without charging it! so I did a reboot after a few minutes and it was then showing as 63%! I mean what the hell was that! Oh one thing I should mention is that every time it crashes, I take the battery out completely, wait for 30 secs to a minute and then put it back in... because i think that helps...
So anything else that anyone can suggest will be highly appreciated!

Some constraints for potential solutions to my issue:
1. I love ICS, its fantastic when it works, in fact I love it so much that I am not going back to GB at any cost, so I will even live with this if I have to... but would of course prefer not too...
2. I am not rooting my phone, have not done it till date and do not intend to in the future... frankly because I do not think I have it in me to handle a rooted fone.

If nothing, I hope you get a good laugh out of my experience and if you have experienced this, just know that you are not by yourself!!

But hats off to all you guys who are participating in these forums! They are absolutely PRICESSLESS! I will definitely post an update if my situation gets sorted!


Cheers

akkidroid4u

Sorry guys was trying to upload the screenshot of strange battery drain... but its not loading!

Last edited by akkidroid4u; November 18th, 2012 at 08:33 AM. Reason: photo upload did not work

Atma

Hi akkidroid4u Welcome to AF.

I was going to suggest a factory reset but I see you tried that.

You can try posting another screenshot. Members aren't able to do it in their first post. You might also try the Galaxy S2 International forum. Most members there have the I9100.

John Jason

I just got hit with this (November 20, 2012) and pulling the battery and putting it back in again did not help. But after reading this I left the battery out for half an hour before putting it back in and rebooting. Everything is back to normal now.

AlagomSwede

Wow, I'm happy I'm not the only one having this issue. I went to school with an 87% charge, I even closed all apps running in the background, and a 3 hour math test later, with the phone locked and in my pocket, the battery was completely dead

Charlym

I just ordered a sgh-t989 from Wamart and haven't received it yet. I was not aware of this battery problem until now!

how old is your phone and is it on T-Mobile? Did it come with ICS installed, or did you update the phone?

I wonder if my phone will have ICS on it and also have the battery issue.

I can always return if so.

Ruver

Same batteries are draining so fast...

Ibreakphones

I had a problem with my battery going full drain within 4-5 hours, and heating up pretty warm on the back. After disabling, and uninstalling, and working my way through the process of elimination, it wound up being one of my email accounts. I have four going to my phone, two that sync (push) and two imap (poll). When i deleted all of my accounts the battery and overheating problems went away. Turned out one of the accounts was constantly connected and had data activity. I then redid them paying very close attention to how i was setting them up, polling only every half hour or more based on the importance of the account. I look at my phone now and it’s at 30% for 12 hours with 58% attributed to the screen (not sure why as I keep it at 25% brightness)…. Not great battery, but definitely usable and way better than what I had going on before. Not sure if this is anyone’s specific problem, just thought I would share the experience.

akkidroid4u

WOOOO HOOOOO!!! my problem is gone guys!!! i have had a battery much MUCH better life than before... i can go upto 24 hrs without charging... and that is with doing ALL my regular stuff... in fact am playing more games than before and surfing longer than before!a

after having been through all the crap I mentioned in comment #83... the issue turned out to be the physical battery itself... on one occasion, while I was fiddling with the battery, I noticed a very slight swelling... in fact it was so slight that I probably would not have noticed it if I did not have my spare battery to compare it with... I immediately switched the batteries and now my spare battery is the main one... it works fantastic... I can finally get the phone to last over an hour even when it is down to 15%... I did some more searching on the net and this seems to have been an issue with many!!! so check your batteries and see if it is the same problem...

Many have said that overcharging the phne can cause the battery to swell up... and believe me i used to charge it all night! (have stopped doing that now... I unplug as soon as it hits the 100% charged mark...

am totally loving the new ICS!!! and yeah Android rocks!!!

hope this helps others too... Cheers!!!

Atma

Glad you got it working right!

didi768

Yep, me too, in Tampa. Damn phone. Never use it , have to charge all the time. Guy at Tmobile says never drain the battery, booklet says to drain it. Who is correct Samsung???

Charlym

I got my new phone up and running! It's just amazing! I've been up since 4am this morning playing with it, and my battery still shows 49%.

It does have ICS. It going to take me quite some time to learn all the settings! This is my first smartphone, and it's just perfect

Atma

Congratulations Charlym! Its a great first one to have. Enjoy it!

Charlym

Thanks Atmazzz! It's taken me a couple of days to set it up, but I found the battery life to be quite good if you don't use it all day like a laptop! Today I did play with it all day talking on Skype and downloading apps, videos, etc.
The battery counter shows a little over 15 hours, @ 17%. Not bad at all.

Last edited by Charlym; December 9th, 2012 at 08:35 PM.

ssk80

I have been using Samsung GS2 for six months and recently been suffering from severe battery drain. I would get just 8-9 hours on a full charge with very light use.
Went through the Internet and searched forums and finally hit jackpot.

Here's wht I did:
1. Calibrated the battery. I let the battery drain completely and allowed the phone to automatically shut down. Then charged the battery from zero till 100 per cent.
I did it three times over a week.
The last time I did this, once my battery was 100 per cent, I removed the battery, waited for 5 minutes, reinserted it and switched on.

2. Turned location services off
Go to Settings, Location services:
Untick Google's location service
Untick GPS satellites
Untick Location and Google search
(Unless u r using Google Navigation a lot u dont need these)

Optional settings:
3. If u want to desperately save battery life...
Turn Auto Sync off:
Settings-Accounts and sync
Turn it off

4.Turn wi-fil off during sleep
Settings--wifi--Advanced (menu key) Keep wi-fi on during sleep ---Never

These steps hve worked for me, especially the first two, hope u guys will find them useful.

Thanks

jeffj318

How about a new battery?

mjr4281

Could you please clarify step #5: (when the charge is 100%, take the charger off then charge again to get 100% again.)??? Do I discharge to 0% then charge to 100% a second time, or just unplug the charger after I reach 100% and immediately plug it back in?