I've never had any real issues with my iphone 5. But last night around 9pm, I was at about 65%. I was off the charger since 2pm and had a lot of use which seemed at a normal discharge rate. All of a sudden, during normal use of playing words with friends, Text messaging and Facebook, the battery started tanking. Within minutes I was down to 60%. I noticed something was wrong so I did a hard reboot and closed all apps in the tray. Still started draining bad. I was losing almost 3% a minute or so. This kept up until I was at 20% then while using the phone, I watched it skip to 17% out of nowhere. Then to 11. Minutes later it skipped to 4% and gave me the under 10% warning, then immediately shut down as if it was on 0. Upon plugging in, assuming it was completely drained, it turned right on and said it at 11% when it left off at 4 when it died. Something really funky was going on and I have no idea what it was. Anyone else ever see this?