Using 750 Ah battery and CAN-bus controller, Models ECR 327/336 are equipped with 4 kW, 3-phase ac drive motor that provides acceleration for loads up to 6,000/8,000 lb and can reach max travel speeds of 6.8/5.9 mph, respectively. SpeedControl drive-speed monitoring system provides stepless acceleration and deceleration via motorcycle style throttle grip. Electromagnetic brakes are applied whenever drive switch is in neutral position to ensure trucks stay in place.