| 摘要 |
An electric device comprises secondary batteries (2B, 3B), measuring means (16, 17) for measuring the states of the batteries, memories (11, 12) for storing measured information and information regarding properties of the batteries, a controller (6) for controlling drive of a load (10), a timer (4), a display and control unit (13) having a time setting function for the timer (4) and time displaying function, and a charger unit (5), and the secondary batteries (2B, 3B) are managed and charged based on information in the memories (11, 12) and /or the information from the measuring means (16, 17) and on the time information from the timer (4). <IMAGE> |
