Enough Power?

Concur with Murray R's figures. My wife has a Resmed10 running on a Resmed DC-DC converter which outputs 19v and the plug also fits the Dell which needs 19v to charge the computer if required. We use a maximum of 60Ah (i.e 5A for 12 hours) overnight with the Resmed on auto humidification and a heated tube. You can reduce the power consumed by doing one or more of the following:
A. Put a blanking plug in place of the humidification tank;
B. Change the auto humidification setting to a manual low number;
C. Rather than cold water, fill the humidification tank with water at about 40C;
D. Reduce the tube temperature or turn the tube heating off altogether; and
E. Wake the wife up at dawn so she doesn't get 12 hours sleep!!!!

Option E is not recommended - even a nice cup of tea doesn't seem to resolve the anger issues.

Keir
optian E doesn,t work after 10 hrs sleep either LOL

Just thought (for anyone else in the position to be needing to buy a machine to travel with who may read this) I'd add that I tested my machine at home with my battery monitor before heading off on the road full time two years ago. Plugged into a 12v socket maximum draw at my pressure setting was 2.1 amps with the humidifier turned on at level 1 (of 5). However this fluctuated with breath, different breathing in than out with the pulse dose technology (even though there is still a heated water chamber) so in reality average current was a little over half the max figure, so in round figures say about 1.5 amps. For an auto machine which is does all a Resmed Airsense 10 for example, can do, including it's quietness there is nothing else available which uses less power. Downside is that you have to buy it direct from the USA because the Devilbiss distributor in Australia still, years after the Intellipap2 was released, only has the older (& slightly noiser) Sleepcube models without pulsedose.

Its certainly doing something to your battery.
My Resmed Autoset 10 pulls 4 amps at 24v so figure 8 amps at 12v (I use the 12-24v adapter).
Thats like having a couple of extra fridges running...

I usually turn the tube heater off when camping to minimise the current.

Pretty sure, all resmed machines are 24volts... I use an S9, but when camping van or tent, I don’t use the humidifier, the humidifier uses heaps of power, and just a standard hose, just run the hose in the sleeping bag with body heat.. works for me.. I do know that some machines, including some resmed models, you can’t disconnect the humidifier, which is why I went with the S9.. sweet dreams.. Odog

Odog

FYI , with the 10s you can get a blanking module to replace the humidifier if you don't need it.
The humidifier only adds 50 or so mm to the length so not really a problem

I have removed the Humidifier as it is not needed so no problem.

That will help the van fridge is on gas, as others have mentioned give it a go at home if you start with fully charged batteries note the voltage then check next morning after running things like your away on a trip see how much power you consume. I would then see how much power the solar panel puts back into the batteries at the end of the day still running the ARB fridge etc. Then you should get a rough idea how many days you may get out of the batteries.