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Open Roads Forum  >  Fifth-Wheels

 > Using a Cpap in my AF 27-5

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Lwiddis

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Posted: 07/13/22 09:24am Link  |  Quote  |  Print  |  Notify Moderator

Modern inverters are not wasteful. Correct battery sizing makes the inverter “loss” completely manageable.


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ReneeG

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Posted: 07/13/22 10:47am Link  |  Quote  |  Print  |  Notify Moderator

Bumpyroad wrote:

don't use a heated hose and use humidifier in passover mode.
bumpy


This.

Hubby has a CPAP. It runs off our inverter (4 bank of batteries charged by two solar panels), but we also purchased a Jackery and solar panels as a backup. The portable power station suggested by the CPAP specialist was more expensive and they said the Jackery will work. With no heat and no use of the humidifier, hubby can run almost two weeks without a charge on it. As you can see, he uses it instead of off our inverter.


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GaryUT

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Posted: 07/13/22 01:57pm Link  |  Quote  |  Print  |  Notify Moderator

Most resmed machines run on 24 volts.

Go to cpap.com search for resmed 12v cable in the search box, find the one for your machine. You will need a 12v socket added to the trailer to use the cpap machine on 12v.

Running it off 12 volts is more efficient than using an inverter.


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C Schomer

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Posted: 07/13/22 02:38pm Link  |  Quote  |  Print  |  Notify Moderator

I put in a receptacle for 120vac and a 12/2 12vdc circuit with a lighter receptacle for the adapter for whenever I’m boondocking. Both are on the proper CBs.

ReneeG

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Posted: 07/13/22 02:44pm Link  |  Quote  |  Print  |  Notify Moderator

GaryUT wrote:

Most resmed machines run on 24 volts.

Go to cpap.com search for resmed 12v cable in the search box, find the one for your machine. You will need a 12v socket added to the trailer to use the cpap machine on 12v.

Running it off 12 volts is more efficient than using an inverter.


Not more efficient, but definitely more affordable.

Lwiddis

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Posted: 07/13/22 03:33pm Link  |  Quote  |  Print  |  Notify Moderator

Jackerys and their cousins are expensive and may have their place but IMO your money is better spent on an adequate RV solar system and Lithium batteries. Also consider the recharging time a 100 water portable solar panel takes to recharge the Jackery and that you’ll need to be in camp so the Jackery doesn’t walk away.

timn

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Posted: 07/13/22 05:00pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks guys I have a lot of info to process.

austinjenna

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Posted: 07/14/22 05:41am Link  |  Quote  |  Print  |  Notify Moderator

I guess it depends on how long you will be boondocking. As others have said just dont use the heated hose and humidifier. You can also buy an external battery pack like Jackery to plug into that should be good for a few days



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Posted: 07/14/22 05:58am Link  |  Quote  |  Print  |  Notify Moderator

You could always use one of these in a pinch - - -
Portable power


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ReneeG

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Posted: 07/14/22 07:08am Link  |  Quote  |  Print  |  Notify Moderator

austinjenna wrote:

I guess it depends on how long you will be boondocking. As others have said just dont use the heated hose and humidifier. You can also buy an external battery pack like Jackery to plug into that should be good for a few days


Depending on the size of Jackery, you can go up to two weeks. We have the 1000 and do.

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