| 摘要 |
PROBLEM TO BE SOLVED: To quickly and easily recognize display contents by switching the state of a display means in response to the estimation result of a charge and discharge inclination estimation means estimating the charge and discharge inclination of a secondary battery. SOLUTION: An electronic appliance is provided with a solar battery, a secondary battery, a system control part 5, a charge and discharge control part 6 and the like. The system control part 5 is operated by means of output current from the side of the secondary battery, counting operation and the stepping operation of a display pointer are always continuously performed, and a detection instruction is given by a prescribed time interval for the charge and discharge control part 6. When the instruction is received, the charge and discharge control part 6 detects the input current value and the remaining capacity of the secondary battery and supplies to the system control part 5. The system control part 5 stores the input current value and the remaining capacity to RAM 14, the display instruction is driven on the basis of the newest remaining capacity stored in RAM 14, and a liquid crystal panel 9 is driven on the basis of an input signal from an input and output control circuit 18 and an input current value stored in RAM 14. |
