Finally a compact 24 volt dc power source!!!
Works perfectly. It is a bit larger than you might think and a bit heavy, but it provides 24vdc right off the battery terminals, this unit much more efficient than other standard  power sources that require an inverter to convert 12 vdc to 120 vac to power a heavy charger that then converts back to 24 vdc. I’m not sure who chose to run CPAP units on 24 vdc rather than the more widely available 12 vdc batteries. Finally there is a 24 vdc battery that will definitely extend your CPAP range away from home.
Rating: 5 stars