It seems CPAP has taken over the boondocking subforum. Can a new "CPAP' subforum be made and everything CPAP be moved there? Therefore anyone new can go to one location to read and learn this simple lesson. Phillips recalled DW's CPAP and it takes a big ass battery if running it on 12 volt. Take the CPAP to an electronics store and they will sell you the parts to make up the wiring harness.