RSD559 wrote:
The 12v cord for my CPAP is like $150. Pretty ridiculous. The 12v plug in my trailer can't handle the portable inverter that I have. It draws too much power when running the CPAP. So I have a spare deep cycle battery that I put in the pass through and run the 110v plug through the laundry chute access. I plug it into the portable inverter in the pass through. The cycling fan of the inverter doesn't bother me any more. And I've never drained the battery to where it stops the CPAP.
I had this problem two. Just cut the cigarette lighter plug off and install two battery clamps like on jumper cables, but a little smaller. then just run to your battery and clamp them on and your set. I ran mine that way for years. now I run it off my solar. Amazon like $40
Mel