Battery cut-off device and method

摘要

A battery cut-off device and method, The device comprising, first and second electrical contacts; a bridge contact movable between a first, closed position in contact with the first and second contacts and a second, open position spaced from the first and second contacts; a magnetic attraction unit including a magnetic element for providing a magnetic field sufficient to hold the bridge contact in the closed position, and a contact separator operable to alter the magnetic field and cause the bridge contact to move to the open position.