Opteka BP-SC4000 Ultra Thin Solar Powered High Capacity (4000mAh) Backup Battery and Charger for the Amazon Kindle 4, Kindle Touch, Kindle Touch 3G & Kindle Fire
Price 39.99 - 99.95 USD
Will fully charge your mobile device using solar or USB power * Ultra high capacity 4000mAh built-in lithium-polymer battery * Includes 10 charging tips with USB port to maximize compatibility * LED power capacity display * 2 Year performance warranty