A communication terminal, to which a power is supplied from the fuel cell, includes an ID detecting unit that detects at least one of unique identification information of a fuel reservoir for supplying fuel to the fuel cell and unique identification information of the fuel cell, a content detecting unit that detects a content executed in the communication terminal, a cell driving detecting unit that detects an operating state of the fuel cell, and a matching process unit that collates and associates with each other data obtained from the ID detecting unit the content detecting unit and the cell driving detecting unit.