NOVELTY - An integrated battery package comprises at least one battery cell; at least one semiconductor chip; a single lead frame mechanically carrying the chips; plastic mold encapsulating the chips and the inner area of the led frame, and forming support structure of the battery package. The lead frame provides electrical connection to the chips, to the battery cells and also provides connector to the package outside.    USE - In portable electronic devices.    ADVANTAGE - The lead frame serves several purposes at the same time. It connects possibly multi-chip electronic circuits; connects the battery cells to the multichip circuit; and without any additional parts it builds the external connectors of the completed package. Thus the need for any additional connecting mechanism is eliminated. The battery package is manufactured using established production process. It is a smooth sided box.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the formation of the integrated battery package comprising:    (a) providing one or more battery cells inside the package, one or more semiconductor chips to control the battery operation, a single lead frame, mechanically carrying and electrically connecting to the semiconductor chips, connecting to the battery cells inside the package and providing the connectors to the package outside, a plastic mold, encapsulating the semiconductor chips and the inner area of the lead frame and the plastic mold forming, at the same time, the supporting structure of the integrated battery package;    (b) forming some of the leads of said lead frame into a form to build the battery contacts forming some of the leads of the lead frame into a form to build the external contacts of the battery package;    (c) mounting said semiconductor chips to the lead frame;    (d) connecting said semiconductor chips to the lead frame;    (e) molding a plastic material around said semiconductor chips and the inner area of the lead frame; and    (f) forming, though the mechanical design of the mold, the supporting structure of the integrated battery package.    DESCRIPTION OF DRAWING(S) - The figure shows a cross section of the molded body with external battery package connectors at the bottom side of the body.