(01-04-2016, 02:30 PM)Breathetonight Wrote: Last winter into spring I posted several inquiries about camping off the grid with a CPAP. This is to follow up on what worked for me. Our camping is by way of a small FG trailer with DC power on board meaning battery and no generator. WE can plug into shore power when available but we do go off grid for weeks at a time.
Thanks for the advice
I wanted to try this about ten years ago and decided to try kayak Boundary Waters camping north of Ely, MN. My setup was simple and effective worked well but was super heavy. at 75 lbs. UGH. setup was as follows:
1. OPTIMA® gell closed cell battery YELLOWTOP® Starting & Deep-Cycle Battery, that I took out of my truck. Capacity: 75 Ah
2. (3) Brunton 3 panel Foldable portable Solar Panel 5 watt output. from REI.
3. DC travel adapter plug with battery post screw on connections + & -.
4. Resmed CPAP machine, w/ DC adapter for travel. I don't remember the model as it was a two machines ago. This machine was well below the 75 Ah of the battery.
That's it. The battery was 75 lbs. and more than a problem to portage and stow in a kayak, 17 ft sea kayak, but I was determined and did it. I spliced all 3 solar panels together in parallel and then connected them to the battery placing the whole thing in full sun all day while we explored. It ran my machine a full 8 hours each night as the battery would charge enough on the panels the next day to run the machine. it was pretty primitive and simple but worked well. I still have the setup and during times of bad weather I charge up the yellow top in the garage and keep it handy in case the power goes out. I actually used it on several occasions. No power, sleeping not an issue.