RECHARGEABLE BATTERY, CHARGER, AND CHARGING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a rechargeable battery, along with a charger and charging system, capable of facilitating confirming history of use. SOLUTION: The rechargeable battery is provided with a battery portion that can be repeatedly charged and a display portion that displays the history of use of the battery portion. The display portion can be provided by electronic paper. The rechargeable battery is provided with a memory device for storing the history of use of the battery portion and thus the history of use of the battery portion can be stored on the rechargeable battery side. As a result, it is possible to easily confirm the history of use of the rechargeable battery and further enhance the convenience of the rechargeable battery. COPYRIGHT: (C)2011,JPO&INPIT