Has anyone traveled ,while using a stationary ,or home O2 concentrator. in an  RV?Is the noise too unbearable?  If in an RV park ,would neighbors complain running it all night,---- IF camping  without hook-ups ,can enough battery power take care of it?  I want to travel ,in our 24 ft. trailer , and it has 2 outdoor storage compartments ,that would accommodate the De Vilbiss 5ltr. machine I use at night {3_4 setting}--but maybe others have devised better set-ups for their machines.Any Summer travelers?