Lenovo ThinkPad X1 Carbon 14-Inch Touchscreen Laptop (Black)3444CUU In the Box - Lenovo ThinkPad X1 Carbon Touch (3444CUU), Integrated 4-cell Li-Polymer Battery Pack (45.8Whr), AC Adapter, Pre-installed Software- Windows 8 Pro 64-bit Thinnest Thinkpad ever Lenovo RapidCharge charges the ThinkPad X1 battery up to 80% in 30 minutes RollCage and Corning Gorilla glass protects the ThinkPad X1 against accidental drops and scratches RapidCharge battery designed to last 3 times longer than a standard notebook battery.