Windrose Technology

Long-haul battery electric trucks, R700 semi

BE/CNprivateest. 2022windrose.tech (opens windrose.tech)Checked 10 Oct

The brief

Analyst view
  • The R700 is a battery-electric Class 8 semi with 729 kWh battery, 416-mile range, and 1,400 hp, with 800V ultra-fast charging.
  • Serial production began in April 2025 in Hubei Province, China, with deliveries starting in late 2025.
  • US assembly at Aertssen facilities in Georgia and Washington is scheduled for end of 2026; raised $410M+ from major investors.

Technical approach

As reported
Battery

Large battery, fast charging

A 729 kWh pack on 800V platform charges 400 km in 35 minutes with megawatt-level chargers, enabling long-haul trucking with minimal rest.

Motors

Four independent motors

Four electric motors totaling 1,400 hp cut friction and transmission losses versus mechanical drivetrains.

Aerodynamics

Low drag reduces energy

A drag coefficient of 0.2755 cuts wind resistance, which is the dominant force on a truck at highway speed, and directly extends range per charge.

Primer