Original IvySkin AT&T Apple iPhone 4 Quattro 4 Battery Pack Case, SC4-JET - Black If you are looking to double the time you spend on your AT&T Apple iPhone 4, then the IvySkin Battery Pack Case is perfect for you! With its' advanced technology, you'll be happy to see that the battery life increases by 200%. What more do you need to ask for? It has a sleek appearance and offers you a solid grip with protection. Original IvySkin AT&T Apple iPhone 4 Quattro 4 Battery Pack Case, SC4-JET - Black features 1800mAh Battery Pack Rubberized Plastic Slider Back Comes with a mini-USB cable to charge and sync Compact and stylish Integrated LED status indicator On/Off switch Color: Black Brand:IvySkin Part #:SC4-JET Original IvySkin AT&T Apple iPhone 4 Quattro 4 Battery Pack Case, SC4-JET - Black