Alright I already went over all the possible ways to conserve battery life on the iphone 3gs... but I want to know what is best in terms of charging in... 1. Should I always "cycle" the battery? (Charge to 100% and let it drain fully) everytime? 2. Or can I do partial charges and not have battery lifetime effected? 3. Or suggest another way. P.S. When I close an app (press home button to return to home screen), does that completely close the app to preserve battery life or is there a technique i need to do to ensure the app is completely closed?