Bluetti Charger 1 whit a fifthwheel

I ordered a bluetti charger 1
My bletti ac 200l is permanently installed in my fifth wheel. I would like to know if I can install my charger 1 in my ram 2500 and extend the cable with a connection between the truck and fifth wheel to get to it which is 15 feet from the front of my fifth wheel.
Thank you

Yes, this can be done. You will need to make sure the extended cable you use is of sufficiently large gauge for the current it will handle so you don’t overheat that cable or cause a voltage drop that affects the charging.