Use an iPod Power Adapter (FireWire) to charge the iPod battery via a FireWire cable.
Supports the following iPod models:
iPod Scroll Wheel 5GB and 10GB
iPod Touch Wheel 10GB and 20GB
(These require a FireWire 6-pin to 6-pin cable)
iPod with Dock Connector 10GB, 15GB, 20GB, 30GB and 40GB
iPod Click Wheel 20GB and 40GB
iPod U2 20GB
iPod U2 with Color LCD 20GB
iPod photo 30GB, 40GB and 60GB
iPod with Color LCD 20GB and 60GB
iPod mini 4GB 1st and 2nd generation
iPod mini 6GB
iPod nano 1st generation
iPod video 30GB and 60GB (5th gen)
(These require a Dock Connector to FireWire cable)
Does not support iPod shuffle, iPod nano 2nd gen and iPod video (Late 2006).
Apple Reference: 661-3123