I had no idea they made a portable BiPAP?!
I was fortunate that a former CALS gave me a BiPAP backup battery that is the same brand as my BiPAP AVAPS and works perfectly with it. It's really heavy, but it's in a case with a strap so it can hang on the back of a wheelchair... I'm assuming the BiPAP itself could sit on a vent shelf? The battery lasts about 14 hours. It operates on a car charger type connection, so if you are in the car, you can just plug it into the cigarette lighter instead and save the battery for when you are out and about in the chair. I had looked at purchasing one myself, but they are about $600! So what I'm wondering is... what is the cost of a portable BiPAP? Is that cheaper, or better to just go for this kind of battery backup?