my ipod only charges when its off

Check your cable, you may have to get a new one. I sometimes have the same problem when I plug in my ipod to the computer. Try plugging and unplugging the USB cord several times until it recognizes the computer. Thanks, I hope this helps!

Did it work befoe when connect to this computer?

Not Charge

- See:

iPod touch: Hardware troubleshooting

iPhone and iPod touch: Charging the battery

- Try another cable.

- Try another charging source

- Inspect the dock connector on the iPod for bent or missing contacts, foreign material, corroded contacts, broken, missing or cracked plastic.

- Make an appointment at the Genius Bar of an Apple store.

Apple Retail Store - Genius Bar