Removeable Power Source and Lighting Device

A light source having a body with a cavity is disclosed. A rechargeable power source is disposed within the cavity of the body. The rechargeable power source has a first end and a second end. The first end of the rechargeable power source has a symmetric shape with a plurality of finite orientations shaped to fit into a portion of the body. The portion of the body is shaped to correspond to the symmetric shape of the rechargeable power source.