Electrical charging system for a robot

An electrical charging system for a robot, comprising:

• An electrical charger assembly, including:
• A charger base coupled to an electrical power source;
• A first male terminal member having a first base affixed to and extending orthogonally along a first axis from a first surface of the charger base and terminating in a first electrical contact, wherein the first male terminal member has a plurality of external surfaces at least two of which are curved from the first base to the first electrical contact and at least one flat surface;
• A second male terminal member having a second base affixed to and extending orthogonally along a second axis from the first surface of the charger base and terminating in a second electrical contact, wherein the second male terminal member has a plurality of external surfaces at least two of which are curved from the second base to the second electrical contact and at least one flat surface;
• and
• A cavity formed between the first male terminal member and the second male terminal member having an opening between the first and second electrical contacts, the cavity defined by the at least one flat surface of the first male terminal member and the at least one flat surface of the second male terminal member, the at least one flat surface of the first male terminal member having a recessed surface portion proximate the opening of the cavity and the at the least one flat surface of the second male terminal member having a flared surface portion proximate the opening of the cavity and angled relative to the second axis;
• and
• An electrical charging port coupled to a battery of a robot to be charged, the electrical charging port including first and second cavities to receive, respectively, the first and second male terminal members of the electrical charging assembly;
• the electrical charging port further including a divider disposed between the first and second cavities, the divider configured to be received by the cavity between the first male terminal member and the second male terminal member of the electrical charger assembly when the electrical charger assembly and the electrical charger port are mated.