System and method for battery charging
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United States of America Patent
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Oct 31, 2006
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N/A
app pub date -
Oct 3, 2001
filing date -
Oct 3, 2001
priority date (Note) -
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Abstract
A method for charging a lead acid storage battery to advantageously extend its life is described. The termination of a charging process is based upon an evaluation of the first derivative (dv/dt) and second derivative (d2v/dt2) of the applied charging voltage. By utilizing the first derivative (dv/dt) and second derivative (d2v/dt2) as charging criteria, an amount of overcharge is applied to the battery that takes into account the precise amount of amp-hours previously removed from the battery. A charger arrangement for performing a charging process of the invention also is described.
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