A lockout assembly is configured to lockout a battery connector including a connector head connected to a wire, The lockout assembly includes a connector cover part and a sliding part. The connector cover part includes a cupped portion providing a cavity and a guide rail extending away from the cavity in which the cavity is dimensioned to receive an end of the connector head. The sliding part is dimensioned to slidably engage the guide rail and has a hooking foot configured to selectively engage the connector head opposite the cavity of the connector cover part.