Dont worry about your iPhonegoing in the red when youre just walking into a concert, when youre getting off the plane or when youre in the middle of a game.The Energizer Instant Charger Made for iPod and iPhone is ready to use and more than doubles the run time of your iPhone. This pocket-sized, powerful instant charger can charge your Apple devices from dead without an outlet. Certified by Apple, the charger is powered by 3 AA Energizer Ultimate Lithium batteries (included). The cap protects the Apple dock connector when youre not charging and easily snaps onto the bottom of the charger when you are.