VERY GOOD (though not perfect) CAMPING CPAP SETUP - LIGHT, SMALL AND CHEAP I use a Dreamstation @8.5cm pressure with no humidification or heating. I get 17-18 hours of use with this lithium battery bank (https://www.amazon.com/gp/product/B07P87JTVT/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1). ...