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Method and system for measuring remaining capacity of a battery with open circuit voltage detection

  • US 20070170893A1
  • Filed: 06/15/2006
  • Published: 07/26/2007
  • Est. Priority Date: 01/23/2006
  • Status: Active Grant
First Claim
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1. A method for measuring a remaining capacity of a battery, comprising the steps of:

  • a) measuring an open circuit voltage;

    b) obtaining an capacity of the battery based on the open circuit voltage;

    c) storing the capacity of the battery in an accumulation counter;

    d) adjusting the accumulation counter according to a discharging or charging process of the battery; and

    e) obtaining the remaining capacity of the battery based on the accumulation counter.

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