I plug my Ipod into my computer in order to charge it and sync it. When i do this the battery % begins to go down. When i first plug it in no matter how much battery is actually there, it says 65%, it then goes to 24%, then 6%, then the second i unhook it from the cord the ipod shuts down. I then turn on the Ipod and the 10% battery warning comes up, however i can watch videos and listen to music on it for hours and the battery % steadily goes up until it reaches 100%. I know it is not a problem with the cord because i have a device in my car that is suppose to charge it and the same thing happens, the battery % goes down and down and down, then when i shut the car off for a second which stops the power going to the outlet, the ipod shuts down. So i can use my ipod in my pocket with my headphones, but i can not use it in my car which is where i use it mostly. Any body have any ideas of what is causing this?? Any help would be great!