LIGHT AND BATTERY KEYED WITH AN ASYMMETRICALLY SHAPED TERMINAL

A portable light has a cavity configured for receiving the electrical power source and has an opening between the cavity and exterior to the portable light. A contact assembly in the cavity has an asymmetrical keying feature in a predetermined orientation in the cavity relative to the opening. An electrical power source has an asymmetrical electrical terminal configured to engage the keying feature in a predetermined orientation, and a charging port at a predetermined location relative to the asymmetrical electrical terminal. A cover includes an orienting member that engages a recess and/or projection of the electrical power source for moving the electrical power source into a predetermined orientation whereat the charging port of the electrical power source is accessible through the opening to receive charging current directly from an external charging source.