The mophie® 3000 mAh Power Bank features a 3,000 mAh/11.1Wh Grade A Lithium Polymer battery and is compact enough to fit in your pocket or hand. Power banks are permitted in carry-on luggage only, and at the discretion of TSA agents. Please charge power bank before initial use. 1.77" x .55" x 3.85" mophie - 3000 mAh Power Bank