My samsung galaxy S2 batteries suddenly drain within hours!
i have owned my SGS2 for 2 months. battery life has been ok, depending on usage. suddenly, from one day to another my batteries don't last anymore at all. go from 100% TO 0 in less than 4 hours. i at first thought the battery was defective, but my spare battery has the same problem! It's crazy! there's no background apps, the display brightness is turned down, i checked everything i can think of. once i just had the fully charged phone sitting there, at work. send 2 text messages and 4 hours later it was drained! without using it!!!! Help!?
Something is seriously wrong here. I'm having the exact same issue. On wifi and a couple texts or minutes if browsing takes the battery down 25 percent. Haven't installed anything or changed settings. Really hope a fix is out there!
I have the same issue, bought my phone on Sunday the 22nd. First full battery lasted a few hours short of two days. Last night went to bed at around 11pm with ~75% battery. Dead before 6am, just glad I didn't have my early class today.
I have the same issue, although i have to say it only started after updating to the newest firmware using KIES.
When i go to settings and look at the battery consumption i see that android OS is using 78%...!!! Before this was not more that 25%
No wifi, bluetooth, gps or background apps open.
My SGS2 too suffering from a dreadful drain. I changed my battery to a new one but still the condition just worsens. Somebody helppp... its quite urgent
i've been on the same boat as most of you, but perhaps a little less severe. dropped to 70% on a full charge from 12mid to 8am while asleep, this was on stock 2.3.6 and rooted only. android os was sucking up most the juice, and it was happening every other day. i took the plunge and installed a custom rom, jauggernaut 4.1, and everything was so much better, at least on standby. i won't encourage any of you to root and put a custom rom on your phones, cuz there's always a chance of bricking your phone. now i'm just hoping when ICS come out-everything would be all good on stock.
Incredible. I'm having the same problem. Not only does my battery drain within a couple hours AFTER charging, but it's also taking longer to charge up.
My S2 is five days old and I just started having the same problem: Phone died from 90% charge to 0% in 2 hours. No GPS of WIFI turned on, not a terrible cell signal. The back of the phone was very hot, too. Has anyone found a solution here?
have no idea what caused it. I downloaded juice defender and made some tweaks. Have been resetting my phone more often, about once a week, and it has been pretty good lately.
Hey, Im new to the forum, I just saw this thread a decided to post about my own woes.
I have had my gs2 for about 6 months and the battery useage has been as expected and very good if data usage is monitored. but now.....
My phone is getting EXTREMELY hot to the point that it could burn my face somewhat. the battery was draining within TWO hours from a fully charge which was now taking triple the length time it was before this problem started to occour.
I started to investigate the problem - I unistalled some apps that I recently installed...no luck
It felt like it was getting hot near the top so I uninstalled nexus torch - still no luck
However, today I decided to switch off my data completely and the battery usage is NORMAL - but I have no idea what could be draining the battery - I had already removed all of my home screen widgets...
This is on a rooted GS2 -which ahs been stable on the same build for 4 months....
new here too, and got the same problem. Just got 2 new Galaxy S 2 phones from T-Mobile over the weekend for me and my wife. They're identical, after all the updates I did (running 2.3.6 now, but not rooted yet). And I noticed that battery usage is just crazy. Just overnight it goes down about 50%. I checked the battery usage, and it shows the biggest use by "Android System" = 40% and "Android OS" = 31%.
I did some search and found this thread: Samsung Galaxy S2 Battery Drain Fix / Work-Around. This is for AT&T versions of the phone, but it looks like the problem is related to android version 2.3.6, not the phone.
The thing is, I already had Wi-Fi sleep policy set to never, so that alone could not have been responsible. But I had the option to "Turn off Wi-Fi" in "Power saving mode" checked, so I wonder if there was some conflict between those 2. I disabled this feature now, so both options related to Wi-Fi sleep/power save are now off. I did not install any 3rd party app to control Wi-Fi yet (like suggested in the other thread). I just want to see first id this alone helps things.
The Following User Says Thank You to MrPeregrine For This Useful Post:
I think I may've found a resolution to this problem. At least it worked for me, on both phones that I have. I started with "Android System" using 40% and "Android OS" over 30% on each of my phones, and now they're all at 4%.
The problem definitely seems Wi-Fi related, but turning Wi-Fi alone is just a temporary fix. Here's what I did:
1. Turn the Wi-Fi off, then wait few minutes and turn it back on.
2. Let you battery drain completely - play some games if you want to speed it up, or just wait, but DON'T CHARGE when prompted. You have to let your battery drain completely - let the phone die on you from the lack of power.
3. Charge the phone fully. Don't disconnect the charger until you see the icon in your status bar that shows the battery has been charged completely. You can use the phone while charging, if you have to, but it'll charge faster if you don't.
4. If you now check the battery use, you may still see the same results as before, but just use your phone a bit and come back and check later, and you should be good.
If this doesn't work for you, do this again but this time after resetting Wi-Fi (step 1) turn the phone off and remove the battery for a minute. Then continue to step 2-4.
It has not worked for me-- I followed all steps. I also tried it with removal of battery as well.
It seemed to work temporarily, and then its back to Android OS hog.
hmm.. unfortunately for me also this seems like a temporary fix. It was perfect 2 days ago. Yesterday I noticed the battery use rising, and today one of the phones has the "Android OS" at over 60% and another at over 30%.
hi i am also having the same problem my phone will only last 12 to 13 hours if i don't use the phone the phone is only 2 months old sent it back to Samsung they replaced the battery and that never solve the problem it is still dying. i used to get 1 and half days use out of it but don't know happened tried different firmware modems still cant solve it.
Hi, I had the exact same issue and couldnt figure it out. I tried killing tasks (with task manager and system info app), Juice defender to save power, and turning off wifi etc. It all started after I setup Social Hub app (I think anyway, I tried stopping all updates and syncs but nothing helped).
I think a rogue process must have got stuck somewhere.
Anyway I done a factory reset and haven't charged the phone since.
This is what my usage looks like on the charge since I reset.... from half a day to well over 3 days and counting.
Man, sorry to hear of all these battery problems, I wasn't having stellar performance stock, but it's much better (in every variant I've tried) since rooting. ATM I've had the phone off the charger for over 19 hours, lots of texts a few calls and a decent amount of internet and I'm still at 71% I'm starting to wonder if it was the stock "upgrade" that I never fully ran the phone on, that is causing this mess for so many of you.
__________________
Currently Running Android Zombie v4.0
i thought I read somewhere posts from those that have them rooted and they had the same problems. I was planning to root mine, just didn't have time. I'll try to get it done today.
Well, you can make them run even harder and faster which will result in shorter battery life, but you can also run them to be more conservative. It may be that I'm just lucky as well, but I was able to increase what I was getting after rooting the phone and finding a rom that I liked as well as turning off processes I didn't need running. Good luck, hopefully it will help you.
Hey, Im new to the forum, I just saw this thread a decided to post about my own woes.
I have had my gs2 for about 6 months and the battery useage has been as expected and very good if data usage is monitored. but now.....
My phone is getting EXTREMELY hot to the point that it could burn my face somewhat. the battery was draining within TWO hours from a fully charge which was now taking triple the length time it was before this problem started to occour.
I started to investigate the problem - I unistalled some apps that I recently installed...no luck
It felt like it was getting hot near the top so I uninstalled nexus torch - still no luck
However, today I decided to switch off my data completely and the battery usage is NORMAL - but I have no idea what could be draining the battery - I had already removed all of my home screen widgets...
This is on a rooted GS2 -which ahs been stable on the same build for 4 months....
hello how r u???
i am also facing the same problem in my samsung galaxy s2 since i updated it to android version 2.3.5 three days ago....
if you could found any solution plz do contact me...
i m very upset about this problem...
I think I may've found a resolution to this problem. At least it worked for me, on both phones that I have. I started with "Android System" using 40% and "Android OS" over 30% on each of my phones, and now they're all at 4%.
The problem definitely seems Wi-Fi related, but turning Wi-Fi alone is just a temporary fix. Here's what I did:
1. Turn the Wi-Fi off, then wait few minutes and turn it back on.
2. Let you battery drain completely - play some games if you want to speed it up, or just wait, but DON'T CHARGE when prompted. You have to let your battery drain completely - let the phone die on you from the lack of power.
3. Charge the phone fully. Don't disconnect the charger until you see the icon in your status bar that shows the battery has been charged completely. You can use the phone while charging, if you have to, but it'll charge faster if you don't.
4. If you now check the battery use, you may still see the same results as before, but just use your phone a bit and come back and check later, and you should be good.
If this doesn't work for you, do this again but this time after resetting Wi-Fi (step 1) turn the phone off and remove the battery for a minute. Then continue to step 2-4.
Let me know if this helped you. I'm curious.
hi...
i have the problem of battery drain in 2 hours after i had updated it to 2.3.5 three days ago...the phone gets quiet hot even in stand-by mode...
no background application is running. wifi is also off...
plz give me some solution...
i m using Samsung Galaxy SII
Hey, Im new to the forum, I just saw this thread a decided to post about my own woes.
I have had my gs2 for about 6 months and the battery useage has been as expected and very good if data usage is monitored. but now.....
My phone is getting EXTREMELY hot to the point that it could burn my face somewhat. the battery was draining within TWO hours from a fully charge which was now taking triple the length time it was before this problem started to occour.
I started to investigate the problem - I unistalled some apps that I recently installed...no luck
It felt like it was getting hot near the top so I uninstalled nexus torch - still no luck
However, today I decided to switch off my data completely and the battery usage is NORMAL - but I have no idea what could be draining the battery - I had already removed all of my home screen widgets...
This is on a rooted GS2 -which ahs been stable on the same build for 4 months....
hi...
i have the problem of battery drain in 2 hours after i had updated it to 2.3.5 three days ago...the phone gets quiet hot even in stand-by mode...
no background application is running. wifi is also off...
plz give me some solution...
i m using Samsung Galaxy SII
I have the same issue, although i have to say it only started after updating to the newest firmware using KIES.
When i go to settings and look at the battery consumption i see that android OS is using 78%...!!! Before this was not more that 25%
No wifi, bluetooth, gps or background apps open.
hi...
i have the problem of battery drain in 2 hours after i had updated it to 2.3.5 three days ago...the phone gets quiet hot even in stand-by mode...
no background application is running. wifi is also off...
plz give me some solution...
i m using Samsung Galaxy SII
If it's not background activity, it could be your device searching for a signal: wifi or data/tower.
Go into the wifi/networking area and make sure things are set up for your situation. You may have wifi on, for example, and not need it, etc.
hi...
i have the problem of battery drain in 2 hours after i had updated it to 2.3.5 three days ago...the phone gets quiet hot even in stand-by mode...
no background application is running. wifi is also off...
plz give me some solution...
i m using Samsung Galaxy SII
Momsdear, if the phone is getting TOO hot it may need replacement. It can happen (defective phone) Have you had it long? You may need to see if they will replace ther handset for you, it may be defective.
Momsdear, if the phone is getting TOO hot it may need replacement. It can happen (defective phone) Have you had it long? You may need to see if they will replace ther handset for you, it may be defective.
i was not getting hot before the update..
i have used it a month before the update.
is there any solution to downgrade to previous android OS versions???
My S2 is five days old and I just started having the same problem: Phone died from 90% charge to 0% in 2 hours. No GPS of WIFI turned on, not a terrible cell signal. The back of the phone was very hot, too. Has anyone found a solution here?
I have a Galaxy S2, not rooted/stock running Gingerbread 2.3.6. I was having many of the issues noted by folks here and in other forum entries:
1) Battery losing its charge at inexcusable rates. For example, going from ~90% charge to ~5% charge in two hours with the screen off and no apps running.
2) In cases like the example above, the battery would become very hot to touch right below the camera on the back of the phone.
3) Cell Standby "Time without a signal" at 100% even though I could call and text.
4) The kicker, my phone sending data at random intervals to the tune of 39Mb per, so that within 7 days of my billing period I had used 220Mb of my 300Mb data plan. This was happening at times when I was asleep, the phone was asleep, and no apps running. I was shocked because I am a moderate user, checking email, web pages, and twitter every so often throughout the day, and I don't run many apps on my phone, especially when I head to bed.
5) I was unable to determine whether or not the issue was one of wi-fi and 2.3.6 or hardware.
Luckily I was within my 30-day Buyer's Remorse Warranty. So, I called AT&T, and was pleasantly surprised by how I was treated. They passed me along to tech support, and the woman with tech support found all of these issues ridiculous, too.
The AT&T tech informed me that I'd have to return the phone to the original purchase point (Best Buy) and exchange it with a new S2.
In the meantime, AT&T will waive all data transmission beyond my plan's 300Mb for this billing cycle and included a waiver of the $35 restocking fee (if Best Buy were to charge me one).
Today, I took the phone back to the purchase point and they swapped out the phone for a new one. No problems there, no $35 restock fee.
The new S2 is stock with 2.3.4 (great, since I don't want to root quite yet). Hopefully this will provide an answer to the wi-fi 2.3.6 battery drain question.
My satisfaction with how AT&T handled my situation is guarded--I'll see how easy it is to rectify this billing cycle when I assuredly go over 300Mb. And I'll have to see if this machine has the same batter and data send problem as the previous one.
I will update in a month or so (hopefully with positive news).
If you are still within that 30-day window, I suggest jumping through the hoops and swap out for a new machine. And if you aren't rooted, it bumps you back to the 2.3.4.
I am having SGs2 from two month from now , when i bought it i installed for about 90 application , i found my battery drains with crazy for just 7 hours without USAGE !!!!!!!!!!!!!!!!!!!!!!!!!!!
Try this and u will find ur phone defferent :
1-backup ur files ,contacts and all needed things .
2-reset ur phone with USB storage Formated to its factory status .
3- try not to install any APP untill u test it in regular Usage for a couple of dayz
(the test will be on regular phone call Sms internet surfing some Ytubes etc.......)
belive me it will lasts for more than 2 dayz ( tested ) after that choose only ur very needed App like Facebook ,Twitter , Or even GMAil .
dont use any kind of TaskKiller cos android itself said about task killers that They are sucky and they are the most reason for draining battery.....
mine lasts for about 40 hours with wifi always on and sometimes 3g networks ......
I had this problem and i dont anymore all i did was clear out a couple apps that activate your internet and/or wifi(advanced task killer,ez task killer, etc). i also clear all apps before bed and turn off wifi and just leave mobile on. the built in power saver app works pretty good.
but really look into what apps are turning themselves on in the background some will pop back up after your clear with task manager and suck that batt dry.
also check out addon detector its a great app for getting rid of push notifications from lame apps and shows you the permission list and many other things.
Last edited by curry62; March 6th, 2012 at 08:56 PM.
Wow I was getting really worried, thought this battery draining was just me. Had my S2 for a few months and had been very happy with it. I am a complete and utter novice when it comes to phones, computers or anything else. All of a sudden my battery was draining real fast even with all the easy options taken to reduce battery draining. I daren't now use it for playing games ( and these are only simple word type games), listening to music or anything. I hardly use it at all on 3G, only use it occasionally on WiFi. I only turn on WiFi when I need it. Couldn't understand why it was OK and then suddenly wasn't. As with other posts the Android OS shot up massively. Trouble is I cant understand most of what people are suggesting, all well beyond me. I know the phone was rooted to unlock it and that's about it. Guess I will just have to take it into a Samsung service centre and grovel madly. Such a shame for what should be a great phone but its no good if you cant use it for what its meant for. Are they really only sold to techy type people or are there other people like me in the world?
Also, does anyone know whether when you have a rooted phone linked through Kies you should still get update notifications?
If anyone can suggest anything really really simple rather than taking it into a service centre I'd be very grateful.
The Following User Says Thank You to AnnieB47 For This Useful Post:
My first smart phone ever. I had read a number of reviews prior to purchasing the Galaxy s2 T Mobile that stated this phone's battery lasts better than most smart phones. Fully charge to complete drain in around five hours. I turned off Wi-Fi, GPS, Blue tooth and turned screen to low. Shut down all programs running and stopped using the phone altogether. Five hours. Some one previously suggested turning the phone to Flight mode. I have not done this yet though what would be the point. Just like i haven't pulled the battery to see if i could plug it in a week later. I am only at the beginning of my search to find the solution to this. Though its quite a stunning perplexity regarding a touted phone. If anyone can direct me to a solutions based site/page/thread. It would be greatly appreciated. Thanks for any assistance. PS: I love this phones functions while attached to an AC or DC outlet.
Device(s): Asus Transformer TF101 (ICS)
Samsung Galaxy S2 i727R
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Smartphones are notorious for battery drain issues. 90% of the time it's a rogue application running consuming CPU which is why you find your phone is hot to touch. Try out BadAss Battery Monitor in Google Play. It will tell you exactly how much power and how much data each application is utilizing every day. Usually if i notice my battery is draining quickly, I pull out the battery and reboot.
My SGS2 started to drain the battery two days ago. Trying to find out the reason, I noticed that Samsung voice kept popping up. There seems to be no way to make it go away. I killed it once or twice, didn't help. Turning the 3G line on and off somehow affects its behaviour. In Settings/Voice Input and Output/Voice recognition I found that Google was a chosen option and I don't remember turning it on. I switched it back to Samsung powered by Vlingo and the Samsung voice is not so active anymore. The battery is still loosing power far to quickly though...
Also, when off, the phone keeps turning itself on by itself, even when not charging...
Maybe this latter symptom will bring me somewhere...
Last edited by igor194; April 2nd, 2012 at 08:32 AM.
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Has anyone found a real solution to this because I think my mom's phone is doing the same thing. Unrooted Samsung Galaxy S2 on the latest gingerbread and it seems that my phone lasts for 1 day 18 hours and hers just goes in 6 hours with absolutely no use. She does not use the internet and there are no crazy downloads so I suspect it has to be something that is running on the phone. I have not noticed her phone getting warmer than usual but again that might because it has a case.
I am having a similar problem. My battery life wasn't too bad up until about a week ago. Now the battery drains very quickly. When I am at home I use wi-fi and I turn the 4G off. My battery life is pretty good then. The problem is when I go to work I have to turn the 4G back on and turn off the wi-fi. That's when the battery starts draining rapidly. It wasn't too bad before but now it's terrible. Strange.
According to t-mobiles android support there is a glitch in the software where something gets stuck to ON. So about once a week you should pull the battery wait 15 - 30 seconds and reboot. I heard doing this has other benefits as well??
I've had the battery drain faster at times so whenever I notice it draining faster then usual I pull the battery and reboot. It resets the phone and the battery stops draining.
The Following User Says Thank You to mpopis For This Useful Post:
On my hunt for a solution to the fast draining battery of a 1.5month old Galaxy S2 I came to this site and saw a lot of suggestions which got me thinking. So I figured that the speedy drain started around the time when I filled the music folder and also did lots of photo and video work. I am going to empty the storage media and see what happens....
I've noticed that even though my battery drains down to the red zone in a matter of hours (i.e. less than 6-8 with almost no use and Android OS showing 94% of the battery usage) that once in the red zone my phone continues to operate fine for another 8 -10 hours - even though I have to dismiss the battery warning several times during this latter period.
Could this not be a battery issue but instead a software issue on how the battery level is being read by the OS? I would assume this doesn't apply to those whose phones are "hot" because that is a certain indication of excessive power being used.
I am having same issue. Just got the phone 8 days ago. I paid $229+tax for the phone and now they are asking another $20 to ship new battery.. help what should i Do? I do have option to return the phone, don't want to do that if i don't have to.. thanks.
I was able to solve this problem on my Galaxy S 2! Overnight my battery life dropped to maybe 3-4 hours (on idle) and it became completely unusable... I don't run any programs that drain battery life and GPS/WIFI/Bluetooth are always off, so I was really confused.
All I did was follow a recommendation (from this thread I think) to shut off the phone and take out the battery. Then I put the battery back in after a minute. When I turned on the phone my battery life suddently dropped by 15% but then started draining at a normal rate!
Not sure if this will work for everyone but its easy to try.
The Following 2 Users Say Thank You to Bandalar For This Useful Post:
finally i've found the best solution for the battery draining thingy!!
juss follow d steps to improve battery!
1)go to d play store and download the app called "mugen power*ROOT*" and install it(so for dis u need to hav root access)
2)nd choose the type of battery u want eg large,medium........
3)when u choose the batery type u want follow d instructions on d screen
***hope dis waz helpfull******
i hav tried dis in large battery but have not faced any problems till nw ....
so please try it on ur own risk im nt responsible for any problems faced in your phonez
i hav tried it in my ROOTED HTC EXPLORER
BEST OF LUCK
Hi everyone,
This is my first post so please be gentle.
I have had my Galaxy S2 since June 2011 after moving over from Iphone and have absolutely loved the phone. It does everything I want and more.
I always have everything switched on (GPS/Bluetooth/WIFI etc) and emails set to push use it moderately throughout the day for calls/texts/facebook etc and would take it off charge in the morning approx 0645 and it would start blipping for battery charging about 2200'ish.
Updated to the new ICS on Thursday last week and since then my battery usage has gone downhill at a rapid rate of knots to the point that it has drained by mid afternoon with no use
Even with everything turned off since the update I have noticed that the icon for upload/download is constantly flashing and my data usage is going through the roof.
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My samsung galaxy S2 batteries suddenly drain within hours!
Possible Solution
its your wifi/taskkiller activating 4g
Another complete novice at smart phones.
Maybe storage
