I have a Samsung Galaxy S II GT-I9105. My problem is battery draining. It works normally after I charge it to full, but as soon as the battery percentage hits 30%, draining accelerates and will go to zero within seconds (literally).

But if I charge it and unplug at 12%, it drains normally again...

What is the problem? Should I buy a new battery?

Update: I have bought a new battery and recalibrated but the same battery draining occurs

  • Replace your battery !
    – user77195
    Dec 23 '14 at 3:41
  • @Droidzer, Sure its battery problem? I just wannna confirm before I replace. Dec 23 '14 at 4:50
  • I am sorry i just read your last lines. Can you tell me if do you use the same charger ?
    – user77195
    Dec 23 '14 at 6:28
  • Battery may need to be recalibrated.
    – HasH_BrowN
    Dec 23 '14 at 6:55
  • @Droidzer... yes, I have been using the orginal cherger... Dec 23 '14 at 15:11

Try resetting your Android to factory setting and see if that helps. Otherwise I would suggest trying out a new ROM, as that helped improve my battery life considerably.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.