Enjoy the power and comfort of the Clearmax CM-500 Power Pack. Never have your Kindle Fire run out of juice again when you purchase this compact and long-lasting backup battery that lets you carry the power everywhere you go.There"s no need for an electrical outlet to charge your device. Take this with you when you travel or just to have as a backup. Both Stylish and powerful, this backup battery pack works with your Kindle Fire to give you more power when you need it. With the ground breaking capacity of 5000mAh at 5V output voltage, you can double the battery life of Kindle. Perfect for the on the go individuals who constantly use their device to keep in touch with their daily duties and pleasures. Fits right in your pocket, purse, backpack, etc., - You can never have enough power in your pocket!