Battery Power for My CPAP
There are a number of solutions for short term powering of CPAP machines while off-grid camping or during power outages, with quite a range of costs. I use a ResMed Airsense 10 CPAP with humidifier an...
Forum Discussion
FWIW regarding powering CPAP machines when camping without hookups:
The lowest power way to run them is to purchase the little converter bricks for each one that plug into an RV coach's 12V receptacles and raise the voltage to around the 24 volts DC that the common CPAP machines require (ours are Resmed AirSense models 10 and 11). These little DC-to-DC converters are available on Amazon and don't cost much. Note that these converters must actually state which CPAP models their output connector will plug into because for instance - the Resmed 10 has a different input receptacle type than that of the Resmed 11.
Using these DC-to-DC converters causes less drain on RV battery systems than using inverters to run the CPAP machines via 120V AC ... because 12V DC to 120V AC inverters waste energy in their conversion process.
The lowest power way to run them is to purchase the little converter bricks for each one that plug into an RV coach's 12V receptacles and raise the voltage to around the 24 volts DC that the common CPAP machines require (ours are Resmed AirSense models 10 and 11). These little DC-to-DC converters are available on Amazon and don't cost much. Note that these converters must actually state which CPAP models their output connector will plug into because for instance - the Resmed 10 has a different input receptacle type than that of the Resmed 11.
Using these DC-to-DC converters causes less drain on RV battery systems than using inverters to run the CPAP machines via 120V AC ... because 12V DC to 120V AC inverters waste energy in their conversion process.
