Electronic battery testing device with automatic voltage scaling

  • US 4,825,170 A
  • Filed: 05/25/1988
  • Issued: 04/25/1989
  • Est. Priority Date: 05/25/1988
  • Status: Expired due to Term
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First Claim
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1. An electronic device for testing a direct current energy source having a dynamic conductance and a nominal voltage comprising:

  • a. means operably connected to said source for providing a signal proportional to said dynamic conductance;

    b. means operably connected to said source for identifying said nominal voltage;

    c. attenuator means responsive to said identified nominal voltage for scaling said signal; and

    ,d. means for displaying a numerical quantity in response to the level of said scaled signal.

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