POWER SUPPLY DEVICE, POWER SUPPLY CONTROLLER, METHOD FOR CONTROLLING POWER SUPPLY AND COMPUTER

摘要

PROBLEM TO BE SOLVED: To obtain a power supply device, a power supply controller and a method for controlling a power supply, capable of obtaining a start time and a computer capable of obtaining the the start time of the contained power supply device. SOLUTION: The power supply device comprises a memory 104 for storing data which indicates a start date in a main battery 64A as device. Data indicating the start date is stored only once in the memory 104 via a CPU 102, when the battery 64A is actually started to be used by an embedded controller 80. When the start date of the battery 64A, is desired the data indicating the start date is read from the memory 104 by the controller 80.