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Method and apparatus for charging batteries in a system of batteries

  • US 7,196,494 B2
  • Filed: 10/17/2003
  • Issued: 03/27/2007
  • Est. Priority Date: 10/17/2003
  • Status: Active Grant
First Claim
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1. A method of charging batteries in a system of batteries, the method comprising:

  • producing a set of state of charge signals indicative of the states of charge of each battery in said system;

    successively identifying, from the state of charge signals, a most discharged battery in said system; and

    applying a pulse of charging current to said most discharged battery for at least part of a first period of time less than a period of time required to charge said most discharged battery up to the same charge as a next most discharged battery in said system before identifying a succeeding most discharged battery in said system.

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