Abstract: The jumper cables with keyed connectors includes a set of jumper cables that include keyed connectors in-line in order to prevent a short across a vehicular electrical circuit or an explosion of a vehicular battery. The jumper cables with keyed connectors include a positive line and a negative line. Both the positive line and the negative line include male plugs that are keyed to connect with receptacles built onto the vehicular batteries. The plurality of connection units insures that only the appropriate components plug together thereby preventing inadvertent shorting across the jumper cables.