Abstract: A battery-operated device having a passive charging mode and an active discharging mode is combined with a support, which supports the device in its charging mode. The support is integral with a plate which is to be positioned on a wall. The plate may be a replacement cover plate which may be substituted for a cover plate of a conventional A.C. wall outlet. The device includes a short power cord having a plug at its distal end. A D.C. current pulse producing circuit, preferably a solid state integrated circuit is housed within the plug. The D.C. current pulse producing circuit is especially useful as a battery-charging circuit.