I was just on the phone for a long period of time, and noticed my battery was creeping below 10%, so I sat down on my bed, plugged my phone in and continued talking. 10 minutes later I look at the phone while still on the call and the battery showed the plug icon status, but the battery was now at 4% and declining. I just ended the call thinking something was wrong and then it began charging when I hung up. So what's the deal, the phone doesn't charge at all or even keep steady power while plugged in if on a call? I found that really strange, first time i've come across this problem across three iPhones. It's not just me right?