Well, this is what it's happening with my iPhone. One day I noticed the battery was dead in the morning. I am sure it was half the night before. After that my iPhone began to show some issues. First, the battery life is about less than 10 h/day, even if I don't use iPod, Internet, mail. It drains even in standby. I do not check my e-mail automatically, I turned off the SSH and I did all tips you can find about battery drain. Second, after a full charge my iPhone just go dead. Nothing works. It only comes back to life if reset. But it keeps doing that a couple of times until a certain time using iPhone. It happens all the time. So, I decided to replace the battery. But, after that, I still got the same problems. Same! So, I figured out it was not the battery, but some kind of power management... One more thing; every time I plug it to the power it seems the battery icon changes. Sometimes show more power or less power left. Or it keeps the same when I plug it using USB2 (MBP) Well that's it. Any help?