I used to watch the % meter on the iPhone 4s and it used to drive me mad watching it drop. I turned the % stat off and never looked back, stopped me 'clock watching'!! No % meter on the S3 now either and i can get 36 hours out of it with relative ease and i'm not stressed about those few % it's dropped whenever... My opinion on the S3 battery is its one of the best i've personally had.