I am new here but not to iPhone. Currently on 4 going to 5 next week. I work in IT sales and I use my iPhone all day everyday. Even when at my desk (which is random) I do all calls via iPhone. I rely heavily on external battery cases to get thru the day and they have become a minor obsession. Mophie was kinda good for iPhone 4 but micro USB port broke on the 3 I tried UGH. ANYWAYS, happy to be here. Reply to you soon