I'm losing hope. I got the FIRST 4S in October 2011, was fine for a while. It began randomly shutting off around 33% battery life, and could not be turned back on until plugged in. When it was plugged back in, battery started charging from 33%. I took it into the apple store and got a replacement around March 2012. The 2nd 4S then began the same problem, only this one would shut down around 50-60%. I took it into the apple store and got a replacement at the end of May 2012. The 3rd 4S is now having the same problem, only around 25% battery left. For the phone I have now, I started fresh, from no back-up, only loading my contacts. No apps, no music, nothing. Can somebody tell me what is going on here? This is getting absolutely ridiculous.