C-Pap power usage
So, I have been using my 12v(6.6 amps) C-Pap machine for a few years in my Creek Side. Now..........my wife is using a C-Pap. So far I have had my wife use my home unit(same exact one as in the trai...
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Personal experience. I have a resmed. the DC to DC converter is noticeably more efficient than using a sine wave inverter. a sine wave inverter will have internal loss, then more loss going back to the 24V the resmed has as an input. the newer Resmed have a 24V input NO, repeat NO 120V input. they use a 120 to 24V converter inline with the line cord. The input to the unit is 24VDC.
Next, if at all possible turn the unit to Airplane mode AND either turn off the humidifier or use the humidifier bypass plug unless you really need the humidifier, and also turn OFF the heating to the tube. If you do these, the power draw drops dramatically.
doing this I can run my resmed for 2 nights on a 250WH battery pack, that's about 8AH per day. so figure about a 1A draw from the battery. Using humidifier, you will draw 3 or 4 times that. It won't make it one night using the humidifier.
Next, if at all possible turn the unit to Airplane mode AND either turn off the humidifier or use the humidifier bypass plug unless you really need the humidifier, and also turn OFF the heating to the tube. If you do these, the power draw drops dramatically.
doing this I can run my resmed for 2 nights on a 250WH battery pack, that's about 8AH per day. so figure about a 1A draw from the battery. Using humidifier, you will draw 3 or 4 times that. It won't make it one night using the humidifier.
