Mophie Juice Pack Universal Boost Quick Charge 2000 mAh external battery charger for iPhone 3G/3GS and 4 - AT&T and Verizon, iPod - 1G, 2G, 3G, 4G, and all 30-pin Apple devices
The Juice Pack Universal Boost is a 2000mAh rechargeable power capacity compact external battery made to completely charge any Apple iPhone and iPod