XTPower® MP-23000A Power Bank - portable external USB and high performance DC battery with 23000mAh - 2 USB to 2.5A and DC 9V / 12V / 16V / 19V / 20V 4.5A (Electronics)
I bought the machine, especially because you go always has the same dilemma: Where is the nearest outlet? As I also in the near future strengthened by the remote bus long distances will bridges in the home, instead of the car was the handle for this