A method of operating a biomedical device, the method comprising: obtaining a laminate battery structure with multiple battery elements for a biomedical device, wherein the biomedical device includes powered components; and the laminate battery structure comprises: a cathode spacer layer; a first hole located in the cathode spacer layer; a first current collector coated with anode chemicals, wherein the first current collector is attached to a first surface of the cathode spacer layer, and wherein a first cavity is created between the sides of the first hole, creating the walls of the first cavity, and a first surface of the first current collector coated with anode chemicals creating the floor of the first cavity; a hydrogel separator layer, wherein the hydrogel separator layer is formed within the first cavity after a hydrogel separator precursor mixture is dispensed into the cavity; a second cavity formed between sides of the first hole and a first surface of the separator layer, wherein the first surface of the separator layer forms the floor of the second cavity, and wherein the second cavity is filled with cathode chemicals; and a second current collector, wherein the second current collector is in electrical connection with the cathode chemicals; placing the laminate battery structure into electrical contact with the powered components, wherein electrical current from the laminate battery structure flows through at least one electrical transistor, wherein at least one electrical transistor is located within a controller for controlling the powered components; wherein at least a first and a second discrete battery element are located within the laminate battery structure, wherein the first discrete battery element generates a first raw battery power and the second discrete battery element generates a second raw battery power; and wherein a power management unit for managing the power provided by multiple battery elements is electrically connected to the first and the second discrete battery elements, wherein the power management unit receives the first raw battery power from the first discrete battery element and the second raw battery power from the second discrete battery element. obtaining a laminate battery structure with multiple battery elements for a biomedical device, wherein the biomedical device includes powered components; and the laminate battery structure comprises: a cathode spacer layer; a first hole located in the cathode spacer layer; a first current collector coated with anode chemicals, wherein the first current collector is attached to a first surface of the cathode spacer layer, and wherein a first cavity is created between the sides of the first hole, creating the walls of the first cavity, and a first surface of the first current collector coated with anode chemicals creating the floor of the first cavity; a hydrogel separator layer, wherein the hydrogel separator layer is formed within the first cavity after a hydrogel separator precursor mixture is dispensed into the cavity; a second cavity formed between sides of the first hole and a first surface of the separator layer, wherein the first surface of the separator layer forms the floor of the second cavity, and wherein the second cavity is filled with cathode chemicals; and a second current collector, wherein the second current collector is in electrical connection with the cathode chemicals; a cathode spacer layer; a first hole located in the cathode spacer layer; a first current collector coated with anode chemicals, wherein the first current collector is attached to a first surface of the cathode spacer layer, and wherein a first cavity is created between the sides of the first hole, creating the walls of the first cavity, and a first surface of the first current collector coated with anode chemicals creating the floor of the first cavity; a hydrogel separator layer, wherein the hydrogel separator layer is formed within the first cavity after a hydrogel separator precursor mixture is dispensed into the cavity; a second cavity formed between sides of the first hole and a first surface of the separator layer, wherein the first surface of the separator layer forms the floor of the second cavity, and wherein the second cavity is filled with cathode chemicals; and a second current collector, wherein the second current collector is in electrical connection with the cathode chemicals; placing the laminate battery structure into electrical contact with the powered components, wherein electrical current from the laminate battery structure flows through at least one electrical transistor, wherein at least one electrical transistor is located within a controller for controlling the powered components; wherein at least a first and a second discrete battery element are located within the laminate battery structure, wherein the first discrete battery element generates a first raw battery power and the second discrete battery element generates a second raw battery power; and wherein a power management unit for managing the power provided by multiple battery elements is electrically connected to the first and the second discrete battery elements, wherein the power management unit receives the first raw battery power from the first discrete battery element and the second raw battery power from the second discrete battery element.