If your like me and hate it when your laptop runs out of juice, the Xantrex XPower PowerSource 100 is for you. PowerSource 100 provides up to 100 watts of AC power and converts 12 volts of DC power from a vehicle battery into 120 volts of AC power. PowerSource has a three-prong AC outlet to handle all chargers and adapters for mobile electronics. Two USB charge ports and a DC cable with vehicle and airplane connector make it perfect for travel. Price is $80.39 and well worth every penny!