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Sudden battery drainage!

I'd like to know the suggestions of all of you regarding my iphone4 sudden battery drainage. My replaced iphone4 seems like it's working fine.

But the problem always appears whenever my iphone4 battery turns around 23%-25%. Whenever I press the sleep/wake button when the battery is at around 23-25%,the battery indicator changes suddenly from 25% to 20% (23% to 19%). It's draining about 5% at a time.I have no idea about that problem. I did restore my phone but no changes happen. My old iphone4 had that kind of problem but the area that the sudden drainage occured is around 60 or 62%.

Does someone experience like my phone problem?

Any suggestion to fix?

Thanks for your time! =)

iPhone 4, iOS4.3.5

Posted on Sep 20, 2011 7:00 AM

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Sudden battery drainage!

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