[Martinjlm]

Originally Posted by Capricio

Curious to hear more specs on these Range Extending ICEs. Displacement, fuel capacity, etc? do they only run at one RPM for max torque?

Also interested to see how well they extend a heavy towing trip if/when battery charge is getting depleted faster than the onboard recharge rate.

The Ramcharger will have (2) 250 kW electric motors, one on each axle, drawing a combined 663 hp. Torque is 615 lb-ft.

Towing is rated at 14,000 lbs and 2,625 lb payload.

The engine generator is a 3.6L PentaStar V6. It is NOT connected to the wheels. Notice in the picture below that between the battery and the gas tank you can see the carpet in the empty space. What you cannot see is a prop shaft, because there isn’t one.

The engine generator will not run at one speed. That would make for some really bad droning noise. It will operate within a narrow rpm band, optimized for efficiency. The point of the engine generator is to keep the battery within an optimal state of charge (SoC) range in order to provide the best towing performance and range. The fuel will most likely run low before the battery SoC runs low, so you would be able to drive to any gas station that can accommodate a truck towing a trailer and refill the gas tank.

The battery is a 92 kWh lithium ion. The fuel tank capacity is 27 gallons. Estimated total range is 690 miles.