what is the effect on weight and range and power?
Oh, wait, it is a tiny fraction of liquid fueled, like so many electric cars that go 40 miles. I bet it costs a fortune too. They can have it put out the same power for a tiny fraction of the range or some other combination of a fraction of liquid fuel capabilities.
There's lithium, right next to ZERO on energy/mass and energy/volume...
![](http://upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Energy_density.svg/800px-Energy_density.svg.png)