| 摘要 |
A battery pack is provided to perform the transmission of electric signal through wire by separately forming high current wire and low current wire and to improve the charging efficiency or discharge efficiency of a battery pack. A battery pack comprises a multi-cell(110) electrically connected a plurality of bare cells(111), and an external case(120) accommodating the multi-cell. The battery pack comprises further the first smart circuit board(130) electrically connected to an anode and cathode of the multi-cell; the second smart circuit board(140) placed with a connector(150) for electrically connecting the multi-cell and the external device; the first wires(160) flowing high current, which are electrically connected to both ends of the first smart circuit board and the second smart circuit board; and the second wires(170) flowing low current, which are electrically connected to both ends of the first smart circuit board and the second smart circuit board. |
