The present disclosure relates to a package foil for a wind turbine component, the wind turbine component including a battery, wherein the package foil includes at least one photovoltaic cell. Further, the present disclosure relates to a wind turbine component assembly, including a wind turbine component including a battery, package foil covering the wind turbine component, at least one photovoltaic cell, the at least one photovoltaic cell being connectable or being electrically connected to the battery of the wind turbine component for recharging the battery. Additionally, the present disclosure relates to a method for packaging a wind turbine component, the wind turbine component including a battery, including Establishing an electrical connection between the at least one photovoltaic cell and the battery; and packaging the wind turbine component with a package foil, the package foil including at least one photovoltaic cell.