I really wasn't thinking about the current conversion when I did it. In my mother 's suv she has a built-in 3 prong AC outlet for plugin in electrical appliances. So I thought it be nice I get one of those for my car, plus my car charger isn't working out too good anyway. The converter works fine so far, haven't blowed any fuse yet. It really just a car charger with a 3 prongs AC outlet.
So you take the car's 12v DC and turn it into 120V AC current then convert that to 5v DC to charge your cell phone? It may work but you sure have a lot of transformer loss that could draw a lot of current and blow the fuse in your car.