| 摘要 |
To prevent reuse of an already used battery with battery-powered equipment (4) the battery (1) is provided with a frangible member (2) which actuates an equipment- enabling switch (7) when present on the battery. When a battery is removed from the battery compartment (3) of the equipment, the frangible member is broken off so that on subsequent insertion the switch (7) will not be actuated. <IMAGE> |
