There is alot of positive and negative about that battery in the N4..I really want to buy the phone but the non replacable battery scares me. Many people say that it gets 14 - 18 hours of use but that says absolutely NOTHING when it comes to a smart phone. The only stat that really matter is the "on screen" time, so please can someone please post screen shots with battery usage of the time they spend with the screen ON?? My screen on time is about 3.75 hours per day and I have a GS3. By the time I hit that amount of time on the GS3 the battery is dead. Your feedback will be much appreciated.