A valve assembly for spraying devices for agricultural technology having a plurality of valves, wherein the valves each include a valve body, which is capable of assuming at least one enable position and one disable position relative to a valve seat, an electric motor for moving the valve seat and/or the valve body into the enable position and the disable position, and an electric energy storage device for providing electric energy for the electric motor, wherein a voltage converter is provided and configured, in a first operation mode, to convert a first voltage provided by the energy storage device into a second, higher voltage to be applied to the electric motor during moving the valve body and/or the valve seat and, in a second operation mode, to charge the energy storage device with low power input.
