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