The United States of America As Represented by the Administrator of the

Nagle, William J

Ralph Thomas

A multi-cell battery protection system is provided wherein each cell has its own individual protective circuit. The protective circuits each comprise a solid state comparator unit and a high current switching device such as a relay. The comparator units each continuously monitor the associated cell and when the cell voltage either exceeds a predetermined 'high' level or falls below a predetermined 'low' level, the relay is actuated whereby a bypass circuit is completed across the cell thereby effectively removing the cell from the series of cells.

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Avon Lake, OH, United States of America

Nagle, William J