A method of establishing a physical and electrical connection between a battery and a circuit board are described. The methods include applying a texture formed from conductive material to a portion of a battery exterior surface. The texture is a region populated by a plurality of protrusions. Protrusions may be configured to partially perforate and lodge within a contact surface secured to a circuit board. The battery with a texture surface may be pressed against the circuit board resulting in perforation of the contact surface by the region of protrusions. The methods may result in a battery and circuit board in electrical communication, and suitable for use within a variety of medical devices.