I picked up my 1st travel trailer. I want to be able to run the A/C, TV and use appliances without any issues. The A/C is 13,500 BTU. The trailer is a 2016 Jayco Jay Flight SLX 267BHSW.
Many campers run dual Honda EU2000i's with the parallel cables. DB had a single Yamaha 2400 that ran his A/C. A less expensive option would be a Champion generator. I have a single Honda 2000 that will run everything except the A/C.