Patent Number: 6,310,481

Title: Electronic battery tester

Abstract: A microprocessor couples to a voltage sensor through an analog to digital converter. The voltage sensor is adapted to be coupled across terminals of a battery. A small current source is also provided and adapted to be coupled across the terminal to the battery. The current source is momentarily applied to the battery and the resulting change in voltage is monitored using the microprocessor. The microprocessor calculates battery conductance based upon the magnitude of the differential current and the change in voltage and thereby determines the condition of the battery.

Inventors: Bertness; Kevin I. (Batavia, IL)

Assignee: Midtronics, Inc.

International Classification: G01R 31/36 (20060101); H01M 10/48 (20060101); H01M 10/42 (20060101); G01N 027/416 (); H01M 010/48 ()

Expiration Date: 10/30/2018