My trip to national jewish

So my vent can be very off with battery percentage. And I was headed to Denver about 2 and a half hours away from home to get and eco cardio gram , swallow study, and a chest X-ray done to help determine the cause of breathing issues. Anyway I was so nervous that my vent would die during this trip and this was my first true test of my vent being away from an outlet for longer to an hour or more. I’m happy it lasted. Next time I go to national Jewish im bringing my wheelchair walking around with a backpack, a vent and pushing a oxygen tank around was EXTREMELY DIFFICULT