Solar battery for remote CPAP use

I need a light weight travel CPAP that can be used in week long remote camps, thus must be run from a solar rechargeable battery.

Has anybody used the Powerfilm Max (1.5 lbs, 18 Ah/66.6 Wh battery, 14 watt solar panel, $339) that is more powerful, lighter, and less expensive than the accessory (1.9 lbs, 5.2 Ah, 14 watt solar panel, $500) manufactured by Powerfilm, and offered by Sometics, maker of the Transcend Auto?