CPAP 12 volt options

OldSmokey wrote:

Whangler wrote:
Used to travel without my cpap and be okay, but have found I must now use it all the time. BTW, I'm mostly dry camping and have 350 watts of solar available. Trailer has two 6 volt golf cart batteries.

There appears to be 3 choices for me to power it:
1. Buy a cpap battery pack for ~$300
2. Wire and fuse a dedicated 12v line direct to the 2 6v golf cart batteries.
3. Just plug it in to the inverter.

What's the best way to power the CPAP?

Thanks

do you need to use the the humidifier ?
if so, you will be forced to use an inverter unless your cpap will humidify on 12 volts ..

You can purchase a 'passive humidifier' that uses no power or get creative and make your own with a Tupperware cake pan,some old hose fittings and some time. Powered humidifiers are pretty power hungry on inverters.

Forgot to add on my previous post that I run a pair of Lithium Ion CPAP batteries when I hunt and are away from power. I can get 3 nights on a pair of fully charged Li packs with no humidifier and the packs are rechargeable via a cigar lighter in any vehicle. They weight very little (7 pounds) and fit in the case with my machine. Both my packs have built in digital volt meters and show percent of charge plus each have a usb port to keep my cell phone / SAT phone charged.