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Method and apparatus for battery charge balancing

  • US 5,764,027 A
  • Filed: 06/21/1996
  • Issued: 06/09/1998
  • Est. Priority Date: 06/21/1996
  • Status: Expired due to Term
First Claim
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1. A method for balancing charges of a plurality of batteries coupled in series, the method comprising:

  • (a) determining actual or estimated rates of self-discharge of the batteries; and

    (b) individually shunting across one or more of the batteries to cause shunt currents which at least partially compensate for differences in said rates of self-discharge between batteries.

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