I just updated my Galaxy SIII to Android 4.1.1 (JellyBean). I heard that Google Now is the major reason why some people experience a drain on their battery. I have found the on and off setting for Google Now. The default toggle is on 'Off' but when I press on it, it prompts me to activate or not. Should I just leave it like this or should I activate and turn it 'off' again? Thanks.