Apple has made it so that their newest products only will accept to charge from Apples expendsive charges ONLY. I don't want to pay a bunch for a charger from apple, so I found a very simple way to charge with a normal cheap USB charger.
First of, an iPod charges from USB. The USB-cable has 4 wires inside it, the Red and Black are for the 5 VDC power, and the Green and White are for the data signals.
The charging itself goes from the Red and Black pins, but the newer Apple products wont accept charging without signal from the Data-pins.
Apple chargers has this signal, but cheaper USB-chargers don't.
Please note that this may not work 100%, so do it at own risk. If you waste any material, its your problem.
I took an old USB-cable with an Male and Female end. I cut the wires up, and sizzled the two Data wires together on the Female side.
Then i pluged the modified USB-cable into the cheap USB-charger, and then the Apple-cable in that again, and it accepted and started charging.
I think what happends in that the iPod itself sends power trought the data-pins, and it lures it to charge.
I also got an video showing this.
Watch on Youtube