I don't use a humidifier or heated hose. My CPAP runs ether 110 or 12V, I've tent camped for up to 5 days on one deep cycle RV battery. At the end of 5 or 6 days the battery is still at 80% more than enough for a few more days. I also take a spare battery just incase, I also keep one handy for any power outage at home.