A quick connector assembly for high power electrical applications is disclosed. The quick connector assembly has a first connector and a second connector constructed to form an electrical connection that can be quickly coupled and decoupled. The first connector has a collar portion connectable to a welding cable and a stem portion having a shank section and a threaded section. The second connector has a recess constructed to receive the stem portion of the first connector and electrically engage both the shank portion and the threaded portion of the first connector. The stem portion of the first connector has a channel formed therein, and the second connector includes a pin extending into the recess of the second connector and constructed to engage the channel formed in the stem portion of the first connector.