Thanks for all the help. I watched the voltmeter. While it is sitting the battery is 13.4v but when the cpap is on it drops to 8.5. Even though it is an 8Ah battery it still drops that low. I'll play with it more later.

I'm a little confused though about one thing. The chart shows the amp draw at .85 (roughly) but the power brick says 3.75a. is 3.75 a max rating? Trying to calculate actual draw rate and battery run time.

Hello,
The humidifier is off. Just a slimline hose. No conditioned hose. I hooked it up to the car and it ran for 15 minutes before I turned it off. Same for house power.

Hello all, I have the Airsense 10 auto-start (327028) and the converter (370003). I know the equipment works. I have a eco-worthy 12v 8ah (96wh) deep cycle LiFePO4 battery. charged it reads 13.3v. It works for the kids scooters and go carts. I plug it in to the cpap and it runs for about 3 minutes a...