Electronic battery testing device
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United States of America Patent
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Nov 5, 1996
Issued Date -
N/A
app pub date -
Jun 7, 1995
filing date -
May 1, 1992
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Abstract
An electronic device for testing storage batteries and other dc sources is disclosed. The testing device passes a small, time-varying, current through the battery and observes the resulting time-varying voltage response. This response is then digitized and inputted to a microprocessor. In one embodiment of the invention, the microprocessor numerically inverts the level of the response voltage to obtain a quantity proportional to the battery's conductance and hence proportional to its available power. In a second embodiment, the microprocessor compares the observed voltage response level with a reference value based upon the battery's rating to obtain a qualitative assessment of the battery.
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