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...
Forum Discussion
Vintage465 wrote:
So the results are in! With my Phillips DreamStation and the Resmed AirSense 10 running w/o humidifiers, Hose heaters and WyFy we would suck the batteries to 12.4 to 12.5 volts. So we had something like 75-80% left. This is pretty easy to work with. However, it may not leave enough battery to keep a furnace on all night and keep the trailer @ 55-60 degrees in the winter. I may have to look into one of the little "Mr. Heater" Free Standing Catalytic heaters for real cold nights. My wife doesn't really like Catalytic heaters as they tug on your oxygen levels. But these new ones have low Ox. shut down and Tip-Over shut down too, so I may be able to sell this idea.......Real easy to store when not in use and sets up in a hurry!
I'm suprised at the results and how the battery is being discharged. I have a resmed airsense 10 and with the humidifier off, wifi off, and hose heater off, I can run it 3 1/2 nights on a 250WH (20AH) BPS lithium battery pack using a BPS 12-24V converter. If on the forth night I use the BPS sine wave inverter I can get to 4 1/2 nights, since the sine wave inverter shuts down at a slightly lower battery voltage. Don't know if it discharges it 100 percent but even if it did, thats around 7AH each night, for a current draw of less than 1 amp average, and if we go for 4 nights, that's only about 5AH/night. unless the phillips is a real power hog this setup should hardly put a dent in a pair of GC batteries in one night.
furnaces are a big power hog. we turn ours down to 45F at night, keeps the furnace from waking us up, and set the furnace come on about an hour before we get up to get the trailer warm.
one downside of the cat heaters is the water vapor from combustion and possible condensation issues. for each gallon of propane burned from your stove, ovenm or portable cat heater, you will put about 3 quarts of water into the air since the combustion air is not vented outside.
Not an issue with a furnace or WH since the combustion air gets exhausted outside.
