I broke down down and bought a battery powered travel CPAP in addition to my normal everyday of the year one. I like the smaller size, and just got my sleep doctor to write a prescription. They will try to sell you through your doctor, but found much cheaper on line. I just charged the battery every day while hunting and the used the battery at night(power was not available at the tent except when generator was on). Before I bought that one, two of my Africa outfitters said if I brought my CPAP that was AC only, all I needed was a small auto lighter AC/DC inverter, and a DC car lighter receptacle with alligator clips and they would put a car battery in my tent to power my CPAP. Theory being clips go on battery, inverter plugs in lighter receptacle, CPAP plugs in normal US outlet in car inverter. Found all items on AMAZON and checked out at home. Worked great. Bottom line I have never been without my CPAP, nor will I! Snoring attracts too many hippos into camp!