The GMP10K Ultra Capacity Mobile Power Station is the largest portable battery in the IOGEAR GearPower lineup. Boasting a whopping 11,000mAh capacity and featuring dual USB outputs capable of charging tablets and smartphones simultaneously, the GMP10K ensures you will never run out of power when you need it the most! This stylish battery can go anywhere with you. Don't let power hungry apps or streaming video keep you from using your smartphones or tablet to the max when away from your power supply. Connect to the GMP10K and charge your tablet and smartphone at the same time with the dual USB charging ports. This is a must have for anyone with an iPad, Galaxy Tab, Google Nexus 7 or 10, Kindle Fire HD, or other tablet device.