| 摘要 |
A battery pack for containing a plurality of cells and being attached to an electronic device comprises a plurality of switches for switching connection status of the cells between parallel connection and series connection. In the case of a battery pack containing a first cell and a second cell, the battery pack comprises a first wire for connecting the positive pole of the first cell and the positive pole of the second cell, a second wire for connecting the negative pole of the first cell and the negative pole of the second cell, a third wire for connecting the negative pole of the first cell and the positive pole of the second cell, a first switch for connecting/disconnecting the first wire, a second switch for connecting/disconnecting the second wire, and a third switch for connecting/disconnecting the third wire. The cells are connected in series when high voltage is needed, and in parallel otherwise. According to the battery pack, wastage of power consumption is reduced and continuous use time length of electronic devices such as portable telephones, portable data communication devices, etc. can be extended.
|
