The Sabrent Power Bank contains a lithium ion battery with 2000mAh of charge capacity, giving you the ability to charge electronics on the go, keeping your devices running all the time. Charge your smart phones and tablets at top speed. Max Output 1A. Perfect for home use, road trips, long flights, picnics, camping, outdoor parties, BBQs, etc. It also features a flip down wall extension so you can easily charge directly through a wall port should you not be near a USB power source such as your computer.