NOVELTY - The system (200) has a power recovery device (250) connected with a fuel cell stack (210) through a heating connection line. A vehicle controller (240) is connected with the power recovering device and controls supply of a coolant, air, and hydrogen to the fuel cell stack. The power recovery device comprises a current supply device (252) that is connected to the fuel cell stack for supplying a current to the fuel cell stack. A controller (254) is connected with the vehicle controller and controls the current supplied by the current supply device.    USE - Recovery system for recovering a power of a fuel cell that is utilized for re-establishing a power of a fuel cell stack in a vehicle. Uses include but are not limited to a sports utility vehicle, a motor vehicle i.e. passenger car, a commercial vehicle e.g. bus and lorry, a watercraft e.g. boat and ship, an aircraft, a fuel cell hybrid vehicle, an electric fuel cell vehicle, a plug-in hybrid fuel cell electric vehicle and a hydrogen-powered vehicle.    ADVANTAGE - The power recovery device comprises the current supply device that is connected to the fuel cell stack for supplying the current to the fuel cell stack, and the controller is connected with the vehicle controller and controls the current supplied by the current supply device, thus enabling recovery of a power of a fuel cell without separating the fuel cell stack from the vehicle if the power of the fuel cell stack is deteriorated, and hence increasing durability of the fuel cell stack at relative low costs.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for recovering a power of a fuel cell.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of a recovery system for recovering a power of a fuel cell. '(Drawing includes non-English language text)'    Recovery system (200)    Fuel cell stack (210)    Vehicle controller (240)    Power recovery device (250)    Current supply device (252)    Controller (254)