Electronic battery tester with battery failure temperature determination

  • US 6,930,485 B2
  • Filed: 03/14/2003
  • Issued: 08/16/2005
  • Est. Priority Date: 03/14/2002
  • Status: Active Grant
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First Claim
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1. An electronic battery tester for testing a storage battery, comprising:

  • first and second Kelvin connections configured to electrically couple to terminals of the battery;

    dynamic parameter measurement circuitry coupled to the Kelvin connections configured to provide a dynamic parameter output related to a dynamic parameter of the battery;

    a voltage sensor configured to measure an open circuit voltage of the battery;

    a temperature sensor configured to measure a battery temperature; and

    calculation circuitry configured to provide a battery failure temperature for a desired output, the battery failure temperature is a function of the dynamic parameter, a battery rating, the open circuit voltage and the battery temperature.

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