Patent ID: 7939214

Claim:
An electronic equipment, comprising: a power switch constructed to cause the electronic equipment to be active and to cause the electronic equipment to be non-active; a fuel cell for supplying an electrical power to the electronic equipment during the electronic equipment being active, wherein the fuel cell stops supplying the electric power to the electronic equipment during the electronic equipment being non-active, and wherein the fuel cell includes a solid high polymer film which is located between electrodes of the fuel cell; a time measuring unit, which measures elapsed time from a non-activated time, when the power switch is operated to cause the electronic equipment to be non-active, to an activated time, when the power switch is operated to cause the electronic equipment to be active; and a voltage check unit, which compares a voltage of the fuel cell with a first reference voltage if the measured elapsed time is shorter than a predetermined time, and which compares a voltage of the fuel cell with a second reference voltage if the measured elapsed time is longer than a predetermined time, wherein a voltage depleted signal is generated if the voltage of the fuel cell is below the first or second reference voltage, wherein the second reference voltage is lower than the first reference voltage and wherein the solid high polymer film dries in accordance with a length of a period time during which the fuel cell stops supplying the electrical power to the electronic equipment, wherein the length of time begins from the non-activated time when the power switch is operated to cause the electronic equipment to be non-active.