I'm flying on Southwest from Florida to Denver. I don't meet O2 in Floida but do in Colorado. My flight with layover is 8 hours. 150% would be 12 hours worth of batteries. My supplier that I'm renting from doesn't have that many batteries for a continuos flow or pulse. They are my Cpap provider and only charging $75 a week. Can I pack a POC in my check in luggage? I don't want to not be able to fly