Reducing power draw for camping trip
I've got my first camping/glamping trip coming up this summer since becoming a CPAP user a decade ago. The cabin has no electricity. In preparation, we already purchased a hefty (23.8 lbs) Jackery battery with 1500W AC output. But it hasn't been tested to see if it will last 4 nights without recharging. So I'm wondering if there's a way to minimize the power draw of my DreamStation 2 Auto CPAP Advanced. Would just running it without the water section attached work? Is there a setting to not run the humidifier?
I'm also wondering if I need to look into purchasing a travel CPAP, but none of the models I've looked at mention how much power they draw for me to compare. And, frankly, it seems like an unnecessary expense when I'm rarely off-grid like this.
Can other CPAP users who've gone off-grid with their machines share their experiences? Note that the only way we'll be able to recharge the Jackery battery is with solar panels.