Jumper cable

A system for providing electricity from one battery to another, the system comprising:

• a cable having two electrical conductors therethrough and having two ends;
• two plugs, each located on an end of the cable, each plug configured to receive an end of the cable and the conductors, and each plug comprising an extension having two male electrical terminals electrically coupled to the corresponding two conductors, wherein the male electrical conductors each comprise conductive rings, one of the conductive rings having a smaller diameter than the other conductive ring;
• and
• a receptacle configured to be electrically coupled to a battery, the receptacle comprising:
• two electrical conductors electrically connected to corresponding polarity poles of the battery,
• a socket for receiving the extension of the plug, and
• two female electrical terminals electrically connected and corresponding to the electrical conductors of the receptacle, the female terminals each comprising conductive rings corresponding to, and configured to engage, the conductive rings comprising the male terminals when the extension is properly inserted into the socket.