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Structure and operation method of battery pack

  • US 20040121223A1
  • Filed: 11/26/2003
  • Published: 06/24/2004
  • Est. Priority Date: 11/29/2002
  • Status: Active Grant
First Claim
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1. A battery pack comprising:

  • at least one or more battery cells;

    first and second switches connected to each battery cell;

    a switch controller for controlling the first and second switches;

    a voltage measuring unit for measuring a voltage of a battery cell through the first and second switches; and

    a controller for selecting one or several battery cells according to a residual voltage of each battery cell and a control signal of a terminal, and performing charging of a battery cell or supplying of power.

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