Title:
SYSTEM AND METHOD FOR BATTERY CHARGING
Document Type and Number:
WIPO Patent Application WO2003030331
Kind Code:
A9
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.
Inventors:
BRECHT WILLIAM B (US)
Application Number:
PCT/US2001/031141
Publication Date:
February 12, 2004
Filing Date:
October 03, 2001
Export Citation:
Assignee:
TROJAN BATTERY CO (US)
BRECHT WILLIAM B (US)
BRECHT WILLIAM B (US)
International Classes:
H02J7/10; H01M10/44; H02J7/00; H01M10/06; (IPC1-7): H02J7/00
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