Adapter plugs; Batteries and battery chargers; Battery charge devices; Battery chargers; Chargers for electric batteries; Charging appliances for rechargeable equipment; Charging stations for electric vehicles; Connectors for electronic circuits; Converters for electric plugs; Current converters; Electric cables, wires, conductors and connection fittings therefor; Electric circuit switches; Electrical outlets; Electrical plugs and sockets; Frequency converters