A hand-held dispenser for precisely controlling the flow rate of water therethrough and for injecting a liquid chemical into the water passing through the apparatus. The magnet structure may include a magnet, a shell pot and a core cap. The second wire overlaps the first wire via a gate insulating layer and is used as a storage capacitor conductor or a drain electrode. A method of forming a battery apparatus includes brushing an outer surface of at least one of an anode terminal material or a cathode terminal material effective to roughen the outer surface from what it was prior to the brushing.