@Cmykify: Right.. I over looked that. My bad.

@Lactose_The_Intolerant: but where did that original potential energy come from?

where is the app to get me a date with Emma Stone?

so does this run in parrallel with the iphones battery or does it run out first and when it runs out i can pop the cover off and switch to just my in built battery at full charge?

@ MacGyver ... not correct ... please read on.