Patent ID: 8741458

Claim:
A battery assembly comprising: a sealed battery cell container holding a positive and negative electrode and an electrolyte, the container having a first outer face and a second opposite outer face; a cut-off switch electrically connected between one of the electrodes and an output of the battery assembly, the cut-off switch having a normally closed state and an open state for controlling the electrical continuity of the battery assembly, and deflection-responsive means comprising: a switch assembly for controlling the operation of said cut-off switch, the switch assembly disposed adjacent to the first outer face of the container wherein deflection of the first outer face moves the switch assembly between an open state and a closed state, said switch assembly including a membrane switch having a pair of poles wherein one of said pair of poles is disposed on a dome-shaped substrate for biasing said one pole away from said other pole; and an outer cover surrounding the container and the switch assembly.