Keep your running well into the night with the IP1 disposable battery/charger. Compatible with all "dockable" iPods--including the iPod 3G, iPod 4G, iPod video, iPod photo, iPod mini, and iPod nano--the Cellboost stores roughly eight hours of additional power in its compact housing. When your iPod's built-in battery starts to run low, simply connect the Cellboost to your iPod's 30-pin charger port, then use the Cellboost's power to extend your iPod's playing time.  works instantly, so you don't need to wait around for an hour before turning the iPod back on. And listeners can choose to use the power all at once or in multiple sessions, depending on their needs. A handy accessory for when there's no charger or AC outlet available, the Cellboost is backed by a six-month warranty. Please note that the Cellboost is disposable, and should be discarded responsibly.