The present invention belongs to a fuel accumulator power supply system for electric vehicle, relates to booster car and tricer which uses fuel accumulator to provide power supply and fuel accumulator of motor car. It is characterized by that in the car using fuel accumulator two sets of fuel accumulator are used, and electrically connected with actuating mechanism by means of control system, one of two fuel accumulator can be respectively used, and when the motor car has need of high power supply, two fuel cells can be series-connected or parallelly-connected for use. |