Product Name: OtterBox Power Pack 10000 mAh Portable Charger for USB-Enabled Devices OVERVIEW: Pack the essentials for every trip including OtterBox Power Pack. As the saying goes, it’s ‘90% preparation and 10% perspiration’ and that’s what you can count on when you pack along with OtterBox Power Pack. Available in 10,000 mAh, you’re prepped with enough power to get away from it all and keep your phone charged until you decide to come back.