Battery for CPAP machine

[fretman2310]

Just a quick question we are looking to run a CPAP machine off a battery, looking at the ones made for the machine are over £200 but looking to buy a Lithium Battery - Waterproof 38mAh Rechargable Power Bank/Battery anyone got any experience with doing this
Thanks

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[dave newell]

Are you sure your battery details are correct? 38miliampere hours is about five with the of sod all capacity.

D.

 

[scotzsue]

We have in an emergency run John's off a spare battery, but with solar and 2 leisure batteries can manage 5 nights without moving via the inverter. No problem when on hook up. Our NHS one was changed so we had one more suitable for use on the move.
am sure @dave newel lvs will have some more advice think his wife also uses CPAP. as do quite a few others on here.

 

[rb62]

Thread here on how people manage,I run mine off the habitation batteries through what ResMed call a 'converter'

https://www.motorhomefun.co.uk/foru...pap-off-grid-whats-the-best-way-to-go.190036/

 

[Sundowners]

Is there any reason why you can't run it off your leisure batteries via a 12v socket------ thats how Pamala used to run hers---- but the humidifier does use a lot of power so try not to use that (if you have one)
If you must have a small separate battery look at mobility scooter batteries???

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[Neckender]

I ran mine off a12 volt socket as I have the 12 volt lead from our hospital,
But I now have a spare 12 volt AGM battery that I carry in our garage and just use my CPAP off this.

John.

 

[fretman2310]

Thanks for your help yes running it off the leisure battery’s and solar panel would probably be suffice for the 2 odd days we wild camp

 

[Pausim]

I run my CPAP from my leisure battery via an inverter. The amount of power consumed goes up significantly if you use it with a humidifier, which I do. Using the manufacturers converter directly from 12v would be more efficient but I like to charge phones, pads, shaver and tooth brushes overnight, so the inverter losses are there anyway.