The transfer car can start, stop, go forward, backward, etc. by this prPerfect Steerable Transfer Cartiple. Main Feature: 1.Capacity up to 1,000 tons. 2.Maintenance Free Battery (Reducing maintenance) 3.Intelligent Charger (Low noise, rapid charge, automated stop, prolong the battery’s lifetime) 4.Low battery alarm device. It will alarm, when the battery power is too low.