The compressors that are made to be plugged into a cigarette lighter outlet usually come equipped with that kind of plug. The more robust compressors requiring direct battery connection usually come with battery clips. I have both types. The latter works considerably faster.
2009 Tacoma Crew Cab, TRD 4WD
2007 Tundra Double Cab TRD 4WD
2014 Escape 19
2007 Norwegian Elkhound "Baxter"