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Alternator battery system tester and method

  • US 8,823,381 B2
  • Filed: 08/01/2011
  • Issued: 09/02/2014
  • Est. Priority Date: 04/28/2005
  • Status: Active Grant
First Claim
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1. A system for testing a vehicle alternator comprising:

  • a tester apparatus;

    a plurality of load leads adapted to connect to components of the charging system, wherein said components include said alternator;

    a plurality of voltage leads for connecting to components of the charging system, wherein said components include said alternator;

    a data connection cable for connecting said tester to a vehicle data port;

    a cable for connecting said tester to an R-terminal on said alternator; and

    a processor for determining the condition of said alternator, wherein in determining the condition of said alternator a first ratio of a first engine RPM to a first corresponding R-terminal frequency is compared to a second ratio of a second engine RPM to a second corresponding R-terminal frequency.

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