[media = http: //www.youtube.com/watch? v = oMkSQGC0yzo]
The video describes a wonderful invention, or rather the manufacture of a 12V converter using an uninterruptible power supply, this device is placed in car. For this invention you will need: an uninterruptible power supply unit, an extension cord, a little effort and time. After you make it, you can charge your laptop or cell phone right in the car.