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iPhone 3GS switching off when battery goes around 30%

CCharless

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Nov 12, 2011
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Hi


My iPhone 3GS on iOS 4.3.3 switches off when the battery percentage is between 30% and 40%, as if the battery was flat.


I have restored my iPhone as a new iPhone and without jailbreaking it this time, but that didn't solve the problem.


My battery is quite old, its maximum capacity is currently of 900 mAh (instead of 1200 mAh) but when my iPhone switches off it still has 300 mAh. I have checked that with BatteryInfo Lite. So I don't think this is what causes the problem.


I anyone has an idea on where this comes from and/or how to solve it, it'd be great.
To those of you who have used their iPhones long enough for its battery maximum capacity to have significantly dropped : have you had the same kind of problem as me or not ?


Thank you for your ideas and feedbacks.
 
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