[remy_martian]

This can ballpark the numbers for you:

บริษัท รถไฟฟ้า (ประเทศไทย)จำกัด (มหาชน) - evthai

www.evthai.com

 

[remy_martian]

Actually, the buildout of CCS charging stations over the past year or so has dramatically improved to where you could possibly go cross country with 100 miles of range (stay out of Wyoming, lol).

I for one cease enjoying trip legs of more than 300-400 miles, so 2 or three charging stops is not outrageous (lunch & dinner stops, then solar when parked for a few days). It becomes even better if you dinghy (flat) tow a BEV behind it and use the bus as a hub.

If one was retired going from RV to RV park, I can see it being a very viable use model. Beats the idiocy of a $175,000 turbodiesel bus dinghy towing a Jeep Cherokee, imo.

And, as you said, a couple or three years to complete a build is "going to where the puck will be" (Wayne Gretzky).

 

[remy_martian]

This is super rough, but better than the crickets we have so far.

F450 is only rated to ~14,000lb GVWR, iirc. The engines in them were 235HP 7.2L diesels. That's 300kW full power up a steep grade, say 6%, at 60mph.

That increase in grade requires about 840 pounds of force, assuming Ford didn't design for gross towing weight. Assume 30" tires...about 1000ft lb. Back that into a 4.56 rear end ratio, direct drive turns ratio is 219 ft lb. Guess it at 2500 RPM gets us 104HP or about 130kW.

Backing that out of the 300kW leaves us with 170kW used at 60MPH if we assume Ford designd the e/f-450 to climb a 6% grade at highway speed at rated GVW.

A lot of assumptions.

Now, to get 100 miles of range, we need 1.67*170 or about 280kWh of battery. Call it 300kWhr for a 90% battery to motive power efficiency. Most of the new chargers are 350kW, so charge in an hour and a bit. Deploy a 3kW solar system at your stops for 6hr a day, and you self charge in...half a month.

3 Tesla 100 packs to go 100miles at full GVWR. 48 modules at 55lb is about 2600lb...call it 3000lb boxed.

That leaves 11,000 lb of curb weight plus payload.

So, it is feasible. $60 grand in batteries, though. A bit cheaper if you go with other choices like Leaf.

Would you rather have $100,000 in an electrified E450 conversion not counting donor and interior work, or pay the same (about $150-175,000) for a diesel motor home?

Yes, you need to stop every hour. But so does Greyhound, lol.

 

[remy_martian]

GVWR is payload plus curb, wet max. GCWR includes tow.

FWIW, unless you are using boat trailer TIRES, an E-450 is not even close to 16"...that's the wheel (rim) size.

Vehicle testing to establish weight rating includes cooling and brake sizing as well as horsepower to maintain grade. Testing is performed in areas like Vale Pass that have extended grades. Competition would laugh you out if town if you release a vehicle that can't keep truck speed on Interstates at GVWR. Semis are apples to oranges in hill climbs.

Given that you need close to a quarter megawatt hour of mobile storage, a heavier battery tech is a huge mistake...you have to lift that up every incline, no matter how slight. Your project, your wallet, your incitement of roadrage as you climb a grade at 25mph on a two lane 55.