Car DC to DC Converter for laptops

Car DC to DC Converter for laptops
Laptops today are the what is called notebook computers, which now is becoming popular. Laptops can be brought into the bag making it suitable for business trips. And even as the "home entertainment center" laptop is more convenient, because it takes a little space. However, in my opinion, there is one very important which become shortcomings - most laptops which powered by an electric voltage of 19V, making it impossible for them to direct the power to an integrated