A power feeding device receives power from a vehicle and feeds the received power to a load external to the vehicle. One of the housing portions may support a reservoir for containing fluidic media and a plunger head moveable within the reservoir. The present invention further relates to valacyclovir in pure form, a method of making pure valacyclovir, and to compositions containing pure valacyclovir. A system comprising an arm, motorized linear actuator and electronic control unit, allows a humidity-controlled chamber to be automatically opened and closed, in turn, allowing reference and sample chambers to automatically be accessed. The sidewall extends from a side of the bottom.