POWER SUPPLY DEVICE FOR VEHICLE

PROBLEM TO BE SOLVED: To provide a charging environment of a power supply device for a vehicle in a low cost capable of charging a plurality of electric vehicles parallel and managing a personal history of charging.SOLUTION: A power supply device for vehicle 1 comprises: a plurality of relays 14 switching between electrical connection and cutoff with an AC power supply 11 and a plurality of power output ports 31 respectively according to an inputted control signal; a touch panel unit 16 and a card reader/writer 17 to which selection information selecting one of a plurality of power output ports 131, user ID and personal identification number are inputted according to user's operation; and a power supply control circuit 15. If use permission is obtained by checking input information in reference to registration information 41, the power supply control circuit 15 outputs to a relay 14 that connects to a selected power output port 131 a control signal that specifies to be a connection state till power supply termination conditions are satisfied and then to return to a cut-off state, and outputs power supply history information 42 per user.