The Crank Juice Box is a lightweight power bank that charges your computers, USB devices, cameras, and can even jumpstart your car. The system is comprised of an 18K mAh battery plus all the attachments you need to power up your devices: 3 generations of Apple laptop chargers, 8 PC and electronic adapters, Thunderbolt, Micro USB, Mini USB, & Apple iPhone & iPad 30 Pin Connector plus car and wall chargers and jumper cables for your car.