I am in the army and some friends and myself are doing some research for an experiment we are doing. None of know alot about capacitor capabilities and I have been looking for the last couple of days and found this forum. Here is my question, We discovered something interesting on an electric vehicle we made, that works but we read that capacitors charge faster then batteries but have around 25% less storage. If I wanted to replace lets say 10 12v car battieries with capacitors. What size would be most practical? Can we operate an EV off the power of a capacitor? What kind of load would charging a cap have? Our design creates massive amounts of energy using forward motion, similar to regenerative braking. But ours constanly creates energy as long as the vehicle is in motion. The only problem we are having is the recharge time of the batteries. If we can cut the time by 25% then we will be out the army and chilling with Heff:) Thanks for any help you all can provide.