I have the Seidio car dock in my car. While on a long trip, I had my phone in the navigation mode and I noticed that it wouldnt charge my phone! About 3 hours into the trip my phone went dead! I had a few phone calls throughout the drive as well before it died! So I turned it back on and made sure the navigation was off and within a few minutes it would turn off again! So I had to wait till I got home and then I was able to charge it. After it was half way full, I took it back out to the car mount and to see if it would charge and sure enough it would! I am wondering if while in the GPS mode and on the car mount, it doenst have enough juice to charge the phone? Does anyone else have this issue? Could my phone be bad??? Thanks in advance!