The wife is on O2 24/7 and we have no problems traveling. After messing with the tanks for a while, we had an out of town emergency and no place to get the tanks refilled. Fortunately, we also had her home concentrator with us, too. That episode prompted me to purchase a battery powered concentrator that weighed about the same as the small tanks and would run for about 4 hours on a charge.
Inogen G-3Now, we take the home concentrator as a "just in case" and use the battery powered unit 24/7 when on the road. We don't even have any tanks anymore since we have generators and both concentrators can be run by either 120 or 12V. Even the bigger home unit can be run in a vehicle by using an inverter.
2013 Ford F-350, 4x4, Crew Cab, Long Box.
2001 Jayco Eagle 266 FBS.
2014 Heartland Elkridge 37 Ultimate.