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Support SG2 Battery dies in 10 hours?

Discussion in 'Android Devices' started by hidehide, Jun 15, 2011.

  1. hidehide

    hidehide Newbie
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    Hi. I just bought my Galaxy S2. On my first day of using it, the battery dies in 10 hours..
    I unplug it in 8am, and it dies on 6pm..
    And I didn't use much on it.. but I noticed the phone gets hot while it's lock and idle.. I tried to close all the background running apps with the stock task manager..

    Is the Android OS 18% usage normal?
    Why does the phone still awake even when the screen is locked?

    I have attached the battery usage picture. Please help me :(
     

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  2. loony

    loony Android Enthusiast
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    dude....chill a bit. batteries usually get better after a few cycles, dont think the first charge will be the BEST one....its more so the WORST one. watch it after a few.
    secondly does it get REALLY hot when in use more than in idle, as in...so hot you cant touch it? if yes then both issues could just be a faulty battery.

    where did you buy it and what warranty is there with the purchase? see if they are willing to at least swap the battery for another (if they wont swap the phone) but most on here dont seem to have too much issues with a replacement from stores.
     
  3. hidehide

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    Thanks for your reply..
    Yea, i know the first few charges really does not reflect the optimum battery usage.. As I recall, this does happen to my iPhone 3GS too.

    However, why will it get hot while it's idle? The iPhone4 I had before does not get hot in the same location with the same carrier.. does it shouldn't be the weak signal causes the battery drain.. On the other hand, is that normal that the phone is awake all the time even the phone is locked? Does your phone still awake all time as well?

    I bought the phone from a cellphone carrier here, and they should be able to swap with a new battery/phone.. perhaps I should try a few more days.. or maybe I should try to restore it to factory settings to make sure it's not an application running background that causing the battery drain..
     
  4. JR866Gooner

    JR866Gooner Android Enthusiast
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    Sounds like an app background process is hung or running in the background.. Download watchdog and take a look at some of the processes running
     
  5. hidehide

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    I'm new to android after using iOS since 1.1.1..
    I don't even know which is normal processes, while which isn't..
    Does watchdog states how much battery or % each processes use? Or which will keep the phone awake?

    In the end, is the long awake bar normal or abnormal for android?
     
  6. heshanj

    heshanj Android Expert
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    i was getting an OS Usage of 30% so i think 18 is alright :D depends on how much u use it too, of course.. i use it a lot, coz its new n im working with it pretty much right thru the day, n i got around 10 hours out of it, with a full charge, with wifi/3g on all the time, liv wallpapers, the works.... i also wonder if this is normal

    about the heating, i noticed my phone heat up randomly too.. its definitely some app causing it, coz i just close all my apps n just let it idle, it cools down completely.. i havent been able to identify which though
     
  7. hidehide

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    Oh, I forgot to mention that, when I choose to disable the data network, the phone cools down..
    Seems like something in the background is trying to keep using the 3G..

    Will it be the cause of Push Email from the SocialHub?
    Coming from an iPhone, Push Email shouldn't cause any battery drain.. unless its constantly retrieving (pulling), instead of pushing...
     
  8. heshanj

    heshanj Android Expert
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    well auto sync does drain ur battery faster.. but using mobile data should not heat up ur phone.. u should try to identify which app is causing the heating.. coz the heat is definitely caused by the CPU.. maybe the app only works when 3G is on?
     
  9. hidehide

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    I tried to turn off "Auto-sync" and keep "Background data" on.. so my Whatsapp still works.
    Do you have any good suggestion on any apps that can help me to identify which causes the heat? I installed Watchdog, and would see how it can help me to identify which apps are running and consuming the highest CPU%...
     
  10. garment69

    garment69 Android Enthusiast
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    Your phone shows "awake" almost 100% of the time. Thats the problem.
     
  11. death667b

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    Hi got my SG2 yesterday and noticed the same battery drain and heat.

    I found the heat stopped once I turned off the 3G data services under networking. I only turn it on while I need it. I also turn off wifi if not needed.

    Hope this helps..

    Edit: One of the battery monitoring apps I got shows the temp of the CPU - mine is around 35c
     
  12. vengance007

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    Hmmm not just a app but more like when the processors kick in. Play HD games and u really feel it.
     
  13. SilverDroid

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    Sod that, load up FPSe :D
     
  14. hidehide

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    Hi, we are on the same boat! But it's really dumb to turn off 3G.. what's the point of getting a smartphone..

    Could you check the graph on the battery usage and let me know whether the awake time on yours is non stop or it just mine that does that?
     
  15. trick202

    trick202 Android Expert
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    Agreed!

    You need to identify where on the phone the heat is coming from. One of the early suggestions was a faulty battery - but I highly doubt this. It sounds like the chip is being taxed by an app or process.

    Great for a
     
  16. hidehide

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  17. trick202

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    My advice would be:

    Start from fresh, then download an app at a time and keep an eye on performance.
     
  18. hidehide

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    I think I found out which app caused the battery drain..
    After I reset my phone back to factory settings, I installed one app by one app and also reading the comments on each app..
    I found out Talkbox, the 2nd app that I download once I use the phone, is a battery drainer..
    I have installed 80% of my apps back.. and everything is working fine.. The awake bar stops when my led monitor is off...
    Thanks everyone's help on this post!
     
  19. mystvearn

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    I had similar problems. First time using android phone or any smartphone. I needed to charge the phone 3 times in two days. Now it lasts about 4-5 days/charge.

    Here is what I did to get a max battery drainage of 20%/day :
    1. Gingerbread 2.3.3 has an inherent problem which drains the battery super quick. Go to Settings>accounts and sync: uncheck both "background data and auto-sync".
    *Note, if you install apps from android market via pc your apps will not be installed until the syncs are enable or if you use wifi.

    2. Remove those live wallpapers, opt for darker (black wallpapers)

    That is about it really. I only enable background data and auto-sync when I'm on the move and not in front of the pc. Last thing I want is pop-peeper and my phone notifying me of mails. When I am out, half a day with notification on, battery usage can be up to 20% but it still should be enough to last a whole day on one charge.

    Hope this helps
     
    derfid and heshanj like this.
  20. loony

    loony Android Enthusiast
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    just some feedback on the topic rather than starting another battery thread....

    i just got my phone 3 days ago.
    1st charge up after the box....i when NUTS, pumped up the display, had the sunburst wallpaper, got and played with some apps...most of the day i was like golem with the precious.
    I got ABOUT 12 hrs out of it (dont have a screenie)

    So, let it die out and charged it fully (power off). took about 3hrs.
    This round i turned alot of stuff off, like wi-fi etc...i cant get wireless net out here so its easy to see what is being used when its not just magically connecting when i dont know about it...things can only connect when on my wi-fi. which i left off where possible.

    [​IMG]

    So....as you can see i got around 1 days use.
    the flat line is where i just left it on overnight.good to see no big drop!
    the sudden drop is where i got up and played some angry birds and pinball HD...now...NOTE THE RISE! No i didnt plug it in anywhere...all i did was clear the memory.
    left it for a while and tried out 2 more games (the next slope)
    now...after that i just left it.....and it continued to drop (where it changes to yellow)
    after seeing this, once again i cleared the memory making it flatline again and pan slowly downward with a bit of messing around like taking the screenies and kies etc....

    [​IMG]

    [​IMG]


    this was the background i kept it on, a nice dark one. and im still on ginger:2.3.3 with power saving cutting in at %50, screen brightness down low, i didnt make or recieve any calls (no one loved loony today :() and about a dozen or so apps installed.

    hope it helps, i dont plan on having drab wallpaper and all setting off or low all the time, just wanted to see what kind of life i could get whilst near new and compare later down the track with different updates.

    :D
     
  21. Unam

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    My findings, happy to report full day usage.
     
  22. Blue1k

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    Early firmwares caused my heating problems. My phone never gets hot anymore even when playing games.

    After rooting and using Titanium Backup to freeze the following apps, my batter life improved by about 6hours. Phone comes off the charger at 6am and lasts till about 8:30pm with solid use all day.

    Wifi Sharing Manager (not needed for tethering)
    Wifi Sharing
    IMEI Tracker
    Social Hub

    Wifi apps are faulty and constantly run even when killed. They are not needed to use Wifi Sharing. Looks like they are used for Wifi Direct.
     
  23. ducati1979cc

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    My phone is now 26 hours nonstop in use and has 62% juice left.
    I'm quite a heavy user and have many auto syncs in background. (weather, rss, e-mails, stocks), the screen backlight is set on automatic.
    With Titanium Backup I freezed, uninstalled and deleted as many stock apps as possible. (There are tutorials in XDA to know which are safe to remove)
    Also I have Advanced Task Killer running on agressive mode.
    And I have Juice Defender running also.
    I refuse to use a black background and have the Solar Winds Live Wallpaper continuously. Because what's the point of having an Super Amoled Plus screen, when you don't use it for your wallpaper?
    I was hesitating to install the setCPU app, but I think it doesn't make much difference if you underclock the phone in idle state.
    Hopefully this post will help others too with their battery life. ;)
     
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  24. heshanj

    heshanj Android Expert
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    ok seems like im having the heating issue too, when i turn on my 3G. im ok with the battery life, i get about 12 hours a day with a lot of usage so i cant complain i guess.. but this heat issue is a bit annoying.. it doesnt always happen, i use 3G to access facebook or email etc n turn it off after 15min, no problem.. but sometimes when im out, n i use 3G for maps. location n Google Places etc, i notice the phone heat up. this morning i also noticed it when i had this app running which updates stock prices (its continually updating) but it doesnt heat up on wifi. only on 3G. it doesnt get too hot to hold, but its definitely hot enough to be uncomfortable to hold.. n it doesnt cool down too fast even after i turn off 3G, it takes a while, or i have to turn off my phone for 5min to get it back to normal temp. norton mobile utilities app gives the temp 41C.. usually it runs at 20-25C, or 30C max. please help!
     
  25. androidexpat

    androidexpat Well-Known Member
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    What applications do you have installed?
     

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