The devices are Supercapacitor and they won't charge a car, but rather would replace batteries and can be charged. They are not without there problems though.

The devices are Supercapacitor and they won't charge a car, but rather would replace batteries and can be charged. They are not without there problems though. https://en.wikipedia.org/wiki/Supercapacitor https://en.wikipedia.org/wiki/Supercapacitor