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Electrical and Wave

Integrated-conductance-and-load-test-based-electronic-battery-tester

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Details

Inventors: Troy, Michael E.; Bertness, Kevin I.;
Assignee: Midtronics, Inc. (Willowbrook, IL)
Primary Examiner: Tso; Edward H.
Assistant Examiner: Luk; Lawrence
Attorney, Agent or Firm: Westman, Champlin & Kelly

An electronic battery tester for testing a storage battery includes first and second Kelvin connections configured to couple to the battery. A forcing function applies a time varying signal to the battery through the first and second Kelvin connections. Further, a resistive load is configured to couple across the first and second terminals of the battery and draw a relatively large current. The storage battery is tested as a function of a dynamic parameter measured through the first and second Kelvin connections and as a function of a response of the storage battery to the relatively large current drawn through the resistive load.

DETAILED DESCRIPTION An electronic battery tester for testing a storage battery includes first and second Kelvin connections configured to couple to the battery.
A forcing function applies a time varying signal to the battery through the first and second Kelvin connections.
Further, a resistive load is configured to couple across the first and second terminals of the battery and draw a relatively large current.
The storage battery is tested as a function of a dynamic parameter measured through the first and second Kelvin connections and as a function of a response of the storage battery to the relatively large current drawn through the resistive load.

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