I might be wrong here but don't you need something in there to regulate the voltage coming out of that 9V battery? all my ipod chargers say 5V output and as far as I know USB only has 5V output.
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I might be wrong here but don't you need something in there to regulate the voltage coming out of that 9V battery? all my ipod chargers say 5V output and as far as I know USB only has 5V output.