According to embodiments of the present invention, a modular plug assembly for use with a cable including a drain wire includes a plug housing, an electrically conductive plug wrap, and an electrically conductive contact member. The flexible bag is pleated and larger in cross-section at a lower portion than it is at the connection to the bag frame. The present invention facilitates the charging of electric vehicles at charging stations by reducing the inconvenience associated with paying for the electrical power obtained from the charging station.