I am going to declare myself as a Ramcharger doubter. I admit I am not the sharpest crayon in the box but the engineering does not make sense to me. A 130kw generator supplying power to 2 250kw motor controllers MIGHT work for flat land, un-laden driving but I can't see it performing well while towing. The pentastar v-6 produces about 300 hp at 6000 rpm. What does it produce while coupled to a generator spinning at about 2000 rpm? Maybe 100hp? So the generator puts out about 75kw (without factoring in any losses). Seems like Ram is trying to sell us 'perpetual energy'.
So I am not buying it until one of you smart guys explain the engineering that I am missing.
It's not meant to charge all the energy that the electric motors can use up. If you're driving it around at full blast somehow legally, it's not going to keep you topped off. It's meant to extend range. Realistically, the most that any load is ever going to really need to pull is probably 200ish HP. So if you spin the pentastar at say, 4000rpm, you can easily drive a generator to produce that much. And that's like, a worst case towing uphill kinda scenario.
In the real world, it will be used for people driving from one region to the other, using under 100hp to maintain a cruising speed. Maybe they'll be towing a boat or a trailer and are using 150hp to pull it. That's easy enough to extend the range of. That's it's use case, enabling a truck that would otherwise have a 150 mile range or so to make a road trip to the beach without stopping to charge for 30 minutes every 2 hours.
IMO, you have to think of Ramcharger as a PHEV. It happens to use all electric propulsion, so you get full power all the time, but it's really a PHEV, where you use up its day to day EV range in your commute, and have gas power as a backup.
Tech wise, I think it's a slam dunk. I think it's also going to be a miserable failure as a product. I think it has to offer a cost savings over a gas truck to make any sense, and I don't think it will. If I'm looking at a new Ram, and I can get a HO Hurricane truck for less money than Ramcharger, why on earth would I spend more for the Ramcharger? Maybe I'm EV curious? How many truck buyers are out there that want to experiment with an EV but also don't want to try a Rivian or Lightning or CT? Not enough, that's for sure.
My gut feel is it needs price parity with the gas trucks, and that Ram won't get that, and then they'll wonder why everyone is buying gas trucks for 20-30 grand less. The greenies will say "see nobody wants a PHEV or EREV". The gas guys will say "see nobody wants those electric trucks". Both sides will get their talking point, and nobody will say "well it's because Ram didn't price it right so there was no value prop.