A Class I recall situation is one in which there is a reasonable probability that the use of, or exposure to, a volatile product will cause serious adverse health consequences or death (21 CFR 7.3(m)(1)).
Electrical energy can be converted back into kinetic energy in electric motors: this happens with the windscreen wipers and the starter motor. Electrical energy is converted into light energy in the headlights. In fact the only kind of energy which you will not find in your car is nuclear energy.
4. Fuel Cell : A Fuel Cell is the kind of cell where the chemical energy from a fuel fed into the cell is converted into electrical energy through a chemical reaction with oxidizing agent. The fuel that is fed into a fuel cell can be Hydrogen, Hydrocarbons, Natural gas etc.