iPhone 4 died with 40% battery
It is the second week since i got my iphone 4, and unfortunately i had many battery issues. the battery was working just great for the first 2 days, then the iphone just dies if the battery indicator reach 40% or so, when i tried to wake it up an empty battery logo appears in the screen.. sometimes, when it first wakes the battery indicator begin charging form 40% not 0% !! i have checked the statistics of the battery and it seems fine ! the usage is around 7 hours and stand by around 13 hours usually, since last fully charged.
Thank you guys, and Any suggestion is appreciated
iphone 4, iOS 4