Patent ID: 7926971

Claim:
A battery pack assembly for use in a lighting device, said battery pack assembly comprising: a negative conductive end; a battery pack having a positive end and a negative end; a cylindrically shaped housing having a base and a cover, the base having a front end, a rear end, and a chamber having a curved part and two flat sides, the cover having a front end, a rear end, and a chamber having a curved part and two flat sides, the sides of the chamber of the base having a plurality of aligned inner slots and a plurality of alternately aligned outer slots and tabs, the sides of the chamber of the cover having a plurality of aligned inner slots and a plurality of alternately aligned outer slots and tabs, the alternately aligned outer slots and tabs of the base and the cover being offset such that when the cover and the base are joined together, a plurality of mechanical locks are formed; a positive contact bracket having a positive conductive end, the positive contact bracket being coupled to the positive end of the battery pack, the positive contact bracket having a plurality of tabs plugged into the aligned inner slots of both the base and the cover; a negative contact bracket coupled to the negative conductive end, the negative contact bracket having a contact spring coupled to the negative end of the battery pack, the negative contact bracket having a plurality of tabs plugged into the aligned inner slots of both the base and the cover; and a printed circuit board installed in the cylindrically shaped housing, the printed circuit board coupled to the positive conductive end and the negative conductive end.