CPAP users....batteries?

[bowhuntingw]

it seems there is alot of options on the market for running a cpap machine while camping. curious as to what tbhers use on their hunting trips? i want to be able to run mine for 5-6 nights ideally. ive found some with solar panels for charging. 2 years ago i used a 12v car battery with than inverter. it didn't work too well.

[Duckologist]

I have one at home i can look at and tell you. Can be recharged in your vehicle and generator of course. Can't imagine any lasting 5 days unless maybe you invest in a bluetti type battery generator. I'm not sure if I spelled that right but Google should get you there

[Low Lander]

I have a LiPO battery that I use on hunting trips. The key to making the battery last longer is to turn off the humidity control and the hose heater option. I can get between 4-5 nights out of mine. I have a solar panel to charge it also but have never had to use it.

Another key point is to use the 12V side of the battery. If you use the 120V cord that comes with your CPAP, there is a lot of energy lost in the conversion and it will decrease your battery life.

[Smart]

This MaxOak was recommended to me and has worked like a champ... I've never needed it more than one night due to electricity being out, but it had plenty of battery left that morning. Reading the reviews it looks like some folks get 4- 6 days use out of it. BTW....If you have a humidifier that will draw any of them down much quicker.

https://www.amazon.com/dp/B074N8G8C7?ref=nb_sb_ss_w_as-reorder_k0_1_12&amp=&crid=1PO5SG7JGS9Q1&amp=&sprefix=cpap+battery

[bowhuntingw]

thanks. i'll look into those al little more.

[bigchiefj]

I don't run heat or humidity. and have gotten 7 nights (about 7 hours/night) from an 85 amp hour lead acid battery. That's using a 120 volt inverter or a 12-24 volt DC transformer.

I can also get at least 15 hours off of a Bauer 5 amp lithium battery with the 12-24 volt DC transformer. I typically carry 2 Bauer batteries for short trips.

The machine is a Airsense 11 that's about 4 years old.

I've used amp meters and the machine doesn't draw much when you exhale against it. It will draw 4 amps on the DC side when blowing unrestricted. It draws less than 0.2 amps on the DC side just being powered on.