Firepack 7500mah High Capacity Black External Backup Battery Pack for Amazon Kindle Fire 1st generation Enjoy up to 15 hours of use with the Kindle Fire Simultaneously charge Kindle Fire, firepack+ and one other electronic device Output: DC 5V/1.3A for Kindle fire; 5V/1A for USB 2.0 port; Input: 5V/2A Includes cord/adapter to charge your iphone or any other mobile device that uses a micro USB or mini USB connector AC adapter is INCLUDED to charge firepack+ or other electronic device; Output: 5V/2A