Systems and methods for a fluid reservoir for use with a fluid infusion device which is automatically filled are provided. A set connector for use with a fluid reservoir of a fluid infusion device includes a body for defining a fluid flow path out of the fluid reservoir. The body includes at least one locking tab that cooperates with a portion of the fluid infusion device to removably couple the body to a proximal end of the fluid reservoir. The body is movable between a first position, in which the fluid flow path is obstructed, and a second position, in which the fluid flow path is open.