wow.. lots of money just for a CPAP machine shelf.
I purchased a 12vdc cord for my CPAP and ran direct to batteries. Just to much power used to run inverter and convert back to 12v.
I still leave inverted on all night but no CPAP through it. Inverter that charges phone and laptops all night. It draws about 6.6amp according to my shunt.
Victron Energy inverter/charger, 1240w solar
550ah LifePo4, Microair Easy Start,RVLocks (keyless)
Airborne Elite Sidewinder pin, Maxx air 7500 Fan
2015 GMC LTZ,6.2 Gas, Short Box, Firestone F3 air ride.