Battery-powered trackless transfer vehicle Workshop trolley cars are commonly used handling equipment in workshops and factories. Compared with rail cars, there is no need to lay tracks. Because the trackless transfer vehicle can move freely, it can rotate 360 degrees on the spot, and the cost is low, and it is favored by many factories and workshops. The trackless transfer vehicle is not restricted by the track, and there are a variety of power supply methods. The more common power supply method is the battery. Lithium batteries are slightly more expensive than batteries and slightly inferior to batteries because of their price.