Permanent magnets electric traction 600W 24V, equipped with elctro-brake, anti-crushing safety button for operator and load safety Max speed 4Km/h (adjustable) with 2-speed selector Electronic traction control system 90A Battery status indicator and diagnostic system, first service in case of failure 2 batteries 100Ah 12V External battery charger 7A, 220V single phase supply 16A Charging time 8 hours Throttle accelerator with direction selector Reduction gear with differential gear 400mm. "Tractor" wheels 13/5.00x6 Helicopter lifting by means of 4 hydraulic jacks 2 tilting rear jacks Suitable for handling helicopters up to 2500Kg.