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Apparatus and method for detecting fully charged condition, apparatus and method for detecting charged condition, and apparatus and method for determining degree of degradation

  • US 20060273761A1
  • Filed: 03/31/2004
  • Published: 12/07/2006
  • Est. Priority Date: 03/31/2003
  • Status: Abandoned Application
First Claim
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1. A fully charged state detecting device comprising charging efficiency detecting means for detecting a charging efficiency which indicates a ratio of an electrical quantity to be stored in a battery as electromotive force to an electrical quantity flowed into the battery at any time point from a start of charging to an end of charging of the battery, wherein a fully charged state of the battery is detected when the detected charging efficiency can be regarded as zero.

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