HB4-300（250-270kW）

HB4-300 diesel-electric range extension assembly（250-270kW）

The HB4-300 diesel-electric range extension assembly uses an aviation heavy oil piston engine to match a relatively speed permanent magnet DC motor. It has the characteristics of relatively high power-to-weight ratio, low fuel consumption, reduced original aging, and more reliable product characteristics, and has the characteristics of low vibration and low noise. Satisfies various complex working conditions such as colder and warmer extreme environments. It can be applied in drones, unmanned vehicles, eVTOLs, unmanned vehicles and other fields.