Best way to run cpap while camping?

[superj]

I was going to test out the set up next time i go to leakey to see my parents. I could flip out the platform, set up the tent and mat, hook up the solar panel system to the battery pack (i decided more than one is better by what yall have said) and plug the cpap in that night to try out in their driveway so i feel like i am really camping.

I will also test it out at my house prior to going to their house for the initital shake down. Their house will be the second run to see what else shakes out

 

[RobbieD]

Another possible option, which would need looking into, would be to put an auxiliary battery in the host vehicle, using a battery isolator. Power the CPAP with a 12V-to-24V converter (they do make these, for medical devices).

The auxiliary, typically a 12V marine deep-charge battery, could be recharged as needed by running the host vehicle (the isolator prevents running down the vehicle primary battery), a shore-power battery charger, or a 12V solar charger.

I think that the key to how well this would work, would be doing the math on what a 12-to-24 converter would pull, amp wise, versus the capacity of the aux battery. If the math works, then you can compare the component costs to your other options.

 

[pentode]

I was going to test out the set up next time i go to leakey to see my parents. I could flip out the platform, set up the tent and mat, hook up the solar panel system to the battery pack (i decided more than one is better by what yall have said) and plug the cpap in that night to try out in their driveway so i feel like i am really camping.

I will also test it out at my house prior to going to their house for the initital shake down. Their house will be the second run to see what else shakes out

That's a good approach, especially if you have a way to monitor voltages/battery capacity etc of whatever setup you decide to go with. You'll start to see right away if you have any weak spots in your setup.

Oh, here's a thought: one component you might want to consider is an alarm that warns you when your battery voltage drops too low. Shouldn't be an expensive piece if you're not in a hurry to get it.