They are correct. You will be able to use the 120v charger but your truck can only deliver 30A at 240v.
The Ford Mobile Charge Cord has two different pigtails. Depending on whether you plug in the 120V or 240V pigtail your amperage draw will change. The boat's charger may do the same.It seems strange that the charger would not accept a lower amperage as 20-30A at 240 V is far more energy than 15A @ 120V.
Just because a vehicle takes a J-1772 plug doesn’t say anything about the amperage. My Leaf drew about 6kW, my Mach E 9.6, my Lightning 19..I was (apparently incorrectly) assuming the boat would accept the standard J1772 connection, which should’ve allowed the 30A charge. Does the company have any plans that you know of to adhere to vehicle charging standards in the future?
Yes.But if you used the ford mobile charger that is derated to 30A as you described above to charge a J-1772 receptacle, wouldn’t that in turn allow for charging that the Lightning would support?