Battery power supplies for medical ventilators; DC/AC power converters; Electrical plug device enabling connection and disconnection of power and/or control cables; Electrical power connectors; Portable power chargers; Power adapters; Power adapters for computers; Power adapters for use in vehicle lighter sockets; Power connectors; Power controllers; Power supply connectors and adaptors for use with portable electronic devices; Power switches; Power wires; Voltage stabilizing power supply; Wi...