Electronic battery tester with internal battery

  • US 6,249,124 B1
  • Filed: 11/01/1999
  • Issued: 06/19/2001
  • Est. Priority Date: 11/01/1999
  • Status: Active Grant
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First Claim
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1. An electronic battery tester for testing a storage battery, comprising:

  • storage battery test circuitry having test connections configured to test a battery, the storage battery test circuitry configured to receive power through a power input;

    an internal battery configured to provide power to the power input of the storage battery test circuitry; and

    a switch configured to selectively couple test connections of the storage battery test circuitry to the internal battery to thereby configure the test circuitry to test the internal battery.

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