I just upgraded to a 5s (64 GB) from a 4 (32 GB). The big shocker is the battery life. What I'm having problems determining is what is "normal" for the iPhone 5 (particularly the 5s...if there's a difference). My research indicates that batter life was a complaint about the 5, and I've already done some research and turned off everything that wastes power (that I can live without). Here is my typical routine with the 5s. I get home about 6 pm. The 5s needs charging. I do it on the charge brick for my iPad2. As soon as I get home, I put the phone on Airplane Mode as I live outside of cell service and don't have WiFi. Once charged (100%), I disconnect power and the phone is little more than an alarm clock. Often go off to bed about 8:30 - 9:00 pm. I wake up at 3:00 am most days. By this point the battery is already down to 70+% power. Under similar circumstances, my old 4 would still be in the 90+% range. I have to do some things before I leave, so I plug in the 5s to get it back to 100%. When I leave, I turn off Airplane Mode. By the end of my work day (5:00 pm), the 5s is down to 20-30% power. The phone sees little use beyond e-mail alerts and texting. I rarely place or receive calls. My old 4 would normally be 40-50% under the same circumstances. Often, I could just omit charging the 4 when I got home and just plug it in at work the next day. I clearly can't do that with the 5s. This weekend, I charged the 5s to 100% Friday night. Sunday morning, I'm under 20% with the phone sitting on a table in Airplane Mode. The old 4 would easily get through to Monday evening without needing to be charged. Is this "normal" life expectancy on a full charge? I'd like to know how to identify unusual consumption on a device reputed to have issues with battery life. Thanks.