Light and battery keyed with an asymmetrically shaped terminal

Abstract

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.

Dependencies are inferred from the claim text.