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Thread: My Galaxy S2 drains battery fast

  1. #1
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    My Galaxy S2 drains battery fast

    Hi,

    This problem started within the last month or so. The battery discharges pretty quickly, within 12 hours while before it used to last for almost a week. I don't have data plan, I only use my Galaxy S2 as a phone, clock alarm, camera, small things like that. When I check the battery status it says that Android OS and Screen use the highest percentage of battery power. I've also noticed that it discharge irregularly. At times the battery drops sharply by about 20-30% with the span of half hour and the phone feels warmer, while at other times it doesn't drop that much and phone is much cooler. As if there is a sudden burst of activity. The Android version on the phone is 4.1.2. I have also reduced the screen brightness, removed apps that I don't need and that can be removed and even bought a new battery. Non of this helped.
    Is this a known problem with Galaxy S2? I have had my phone for many years and this is the first time I experience this. Is there anything I can do to find out what is causing the rapid battery discharge, apart from buying a new phone that doesn't have known battery problems?

    Thanks

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    Try a factory reset first - It's possible that an update has failed or caused a file conflict somewhere.
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    Quote Originally Posted by RichH View Post
    Try a factory reset first - It's possible that an update has failed or caused a file conflict somewhere.

    Won't I lose all my settings, contacts, apps if I do a factory reset?

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    You will unless you back up first.
    Your Google account will back up your apps and contacts and you can use Samsung Kies too to make double sure you have everything stored safely on your computer.
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    Same problem with me I think this will be android battery problem of 2000mah. But in these days all he phones or tablets habe 3000mah battery or greater.. my mobile battery going down when i try to play live stream].. with in 15 20 minutes 60 to 70% battery going down. but in latter S6 edge or S7 mobile models bettery is enough good to watch live stream.
    Last edited by RichH; 04-21-2017 at 11:31 PM.

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    I did a factory reset and it didn't help much. Well, from battery being gone in one day, now it lasts day and a half.

    But here is an interesting and odd observation. My phone actually drains the battery at a preferred time. Every morning between 8am and 9am the battery charge drops by about 20% just within that one hour without me doing anything with the phone - it is just supposed to be idle. And the phone itself gets hotter to the touch. Can anyone suggest a reason why this might be happening?

    Thanks

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    Maybe you have an app timed to run a backup of your phone at this time?
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    I'm sure I have not installed or configured any app like that. I don't use a data plan and the WiFi is turned off. I even turned off any synching. Do you know how I can check what is causing that phone activity? Thanks.

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    The fact that you have all data connections off could be the problem if something like Google is try to back up or sync. It will keep trying and keep on failing.
    You'll have to go through all your accounts and check what is syncing or backing up and turn it off or turn on wifi and allow it to do what it wants.
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