Mobile terminal equipment is provided with a battery receiving chamber for using a fuel battery cell unit including a hydrogen storage alloy container, a pressure adjusting valve, and a fuel battery cell. A fuel battery system for mobile terminal equipment is further provided with a fuel battery including the valve, and a secondary battery. A space section between an inner surface of the battery receiving chamber and the fuel battery cell unit is formed by contact between protrusion sections provided on the fuel battery cell unit and the inner surface of the battery receiving chamber. In an electronic camera main body, an air intake port provided near a grip is disposed near an anode side of a fuel battery cell, a part of the air intake port and a fuel tank can be attached or detached from the electronic camera main body.