Cpap

My Philips Respironic DreamStation is 12v, and like I posted above, the 12v cord was $35 delivered.

Devilbiss Cpap 12v cord less than $30from Devilbiss. Runs for 2 nites off group 27 battery w/o humidifier.

The trick to battery life is to keep usage down; and when usage is needed, use it efficiently. The DC to inverter to AC to CPAP adapter to DC to CPAP has losses all along the path. I keep the efficiency higher by cutting out the inverter and adapter. But, you'll need a pap that will run on 12 VDC. Respironics and Zpap are two I know.

roadrat57 wrote:
Does anyone run a Cpap off an inverter? I have two 6 volt batteries on the coach. Will I be able to run the Cpap all night on fully charged batteries?

We run my wife's CPAP all night off of 240 ah batteries all night with power to spare. We typically run the furnace too in colder climates, no problems.

roadrat57 wrote:
Thanks to the caring people that responded with useful info. To those other useless people with ignorant, uneducated responses...f.u!

Now, I wonder which group I am in. I didn't directly answer the question, but provided information about a different solution, not involving an inverter. I will be crushed if my information is not "useful info."

roadrat57 wrote:
Thanks to the caring people that responded with useful info. To those other useless people with ignorant, uneducated responses...f.u!

Well......THIS is pretty much the only "ignorant and uneducated" response that I've seen in the whole thread.

The answers that come back are not always exactly what you want to hear.....but they ALL have some value.

Thanks to the caring people that responded with useful info. To those other useless people with ignorant, uneducated responses...f.u!

We have 2 six volt AGM batteries (220 amp hrs) in our truck camper. Also 200 watts solar. I use a VPAP and my wife has a CPAP. We run them both every night with a 300 watt inverter (humidifiers off) We can boondock indefinitely watching a movie every night as long as we don't need to use the furnace and we have sunny days. In cool or cloudy weather we need to be traveling every 3rd day to recharge the batteries. We use a Trimetric to insure the batteries never go below 50%. We don't have a generator and don't want one.

Some machines have heater throttles. There is a large difference between 1 and 5. A sixty degree environment is rather different than a forty degree environment.

So all-inclusive conclusions sans caveats may be questionable.

I have two Group 27 12V batteries hooked up in parallel that are dedicated to CPAP use. I can get 4-5 nights of usage running off an inverter WITH the heated humidifier in use. This has worked for over 10 years for me. The batteries are also hooked up to a 3.5A Smart Charger so if I am running the generator it will help to recharge the batteries(or at home between trips hooked up to shore power).
The OP should have no problem with what he has stipulated in his question to the forum.