Do the trailer outlets run off the batteries?

[bcarroll]

I am wanting to know if the trailer outlets run off the batteries.
Is there an inverter/converter/doohickie that allows the batteries to power the outlets?
I need to run a CPAP machine at night, and want to go to campgounds without hookups and still get a good night's rest.
The only 12v cigarette lighter type outlet I have is by the TV but that is 10-15 ft away from where I need it.

I asked a parts guy at a trailer place and they said plugging something in to the outlet would work as long as it is a 12v appliance, but then they also said the outlets are on separate 120v circuit, so I don't know what to do with that info.

I have a 2012 275BHS Dutchmen trailer... is there something that comes with the trailer that allows this or is it a modification that needs to be done?

I am sure there is a wealth of knowledge on here that has a solution.
I am a total newb when it comes to anything involving electricity so a simple solution is best.

[2oldman]

Search 'cpap' and you'll see the wealth of knowledge that has preceded your question.

[Golden_HVAC]

The 12 volt things will work as long as the battery stays charged. However a CPAP can discharge 2 batteries overnight. So you will need to upgrade the batteries, and also consider a larger solar system in order to dry camp at all.

I installed a 400 watt solar system in a larger fifth wheel for a CPAP owner. He already had two batteries, and I installed 2 more. A 1,500 watt MSW inverter, new electrical panel, and transfer switch. This powered two of the 120 volt circuits in the RV.

He could run the CPAP overnight and that would run down all 4 batteries. In the daytime, he would use the solar system to recharge the batteries, then sometimes need to run the generator to fully charge the batteries.

Fred.