Panasonic presents the TOUGHBOOK® 31, the 13.1” laptop is the undisputed leader in the fully rugged category. Its Intel® Core™ i5 processor packs a punch and amazing battery life—up to 28.5 hours (MobileMark 2014) with optional media bay 2nd battery. Combine six generations of delivering rugged performance plus 18 years of consistent docking compatibility, and you have a computer that will go the distance with you anytime, anywhere.