The application relates to a method for producing a sterilized subcutaneous access device (1), the method comprising: producing a device carrier unit (4), comprising providing a carrier, producing a subcutaneous access part (2) on the carrier, the subcutaneous access part (2) being provided with at least one of a sensor device (5) for detecting an analyte present in a bodily fluid and an infusion device (6) for infusion of a substance, and producing an electronic assembly (3) on the carrier, the producing comprising printing a battery (16) on a carrier material, and sterilizing the device carrier unit (4) by radiation sterilization, the sterilizing comprising exposing the printed battery (16) to the radiation applied for sterilization. Furthermore, the application relates to a sterilized subcutaneous access device.