Griffin TuneJuice 2 Battery Backup for iPod (Black) Ideal for air travel, camping, roadtrips, or anywhere you could be without power UP to 14 additional hrs of audio play on a 5G iPod w/ video 30GB Provides up to 2 additional hrs to video iPod Compatible with any dockable iPod or iPod mini, and is backed by a manufacturer's 1-year warranty Does not actually recharge internal battery, and can not be used on a completely discharged iPod