Optimizing for battery use

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
Clizby
Posts: 31
Joined: Sat Dec 06, 2014 4:20 pm

Optimizing for battery use

Post by Clizby » Sun Nov 08, 2026 3:11 pm

Hey all,
I have an Airsense 10. In a few weeks, I'm going to be going on a trip that will require me to run off battery power, and I will have very sporadic and unreliable electricity. I know of a couple of things that will help with that, namely turning off the humidifier and also the hose heating. Are there any folks here who have had to do this and have any other suggestions to optimize the settings for maximum battery? I appreciate the suggestions!

Edit: I realized after I posted this that I had previous asked about options available for battery - Not trying to have a duplicate here, as at this point I have actually bought a battery! Sorry for any redundancy though.

mlmollenkamp
Posts: 118
Joined: Fri Apr 01, 2016 3:46 pm

Re: Optimizing for battery use

Post by mlmollenkamp » Mon Nov 09, 2026 1:04 pm

The main thing to do is to get a power supply that runs directly from battery, not a 120 volt converter with the standard power supply. If you convert the battery to 120V then use the regular supply you will lose 25 to 30% of your power. There is a Resmed power supply for this, or there are 3rd party supplies that are much cheaper. I've used the 3rd party ones, they are fine. If you have a dedicated 24V battery none of this applies obviously.

Aside from that there's not much to do. The machine is pretty efficient without the humidifier and hose. Unplug it when not in use to eliminate the standby power.

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Mijjil
Posts: 54
Joined: Wed Dec 03, 2025 2:54 pm

Re: Optimizing for battery use

Post by Mijjil » Mon Nov 09, 2026 7:39 pm

For power failure protection for my Resmed Airsense 11 AutoSet I use an EasyLonger ES960 PRO which comes with DC-DC cables for a number of different CPAP machines. I also camp with my ES960 and get five full nights (40+ hours, average pressure 13.3 cmH₂O, no heat/humidity) on a single charge.

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Dog Slobber
Posts: 4339
Joined: Thu Feb 15, 2018 2:05 pm
Location: Ontario, Canada

Re: Optimizing for battery use

Post by Dog Slobber » Tue Nov 10, 2026 1:41 pm

  • turn off humidifier, but put water in the humidifier, for some pass-over humidity
  • use a non-heated hose (don't just turn off your heated hose)
  • if you have a 24v battery setup, use a direct to device cable (if available), otherwise use DC-DC converter.
  • if your battery setup has an AC inverter, turn it off, simply having one turned on drains the battery
  • ensure your ResMed is in Airplane mode
  • unplug your device as soon as you are up, and plug-in just before you use it
  • avoid using your battery to charge phones, tablets, anything non-CPAP
  • place a piece of tape over the ambient light detector to keep the screen dimmer
  • consider lowering pressure, switching to fixed pressure or capping max pressure. Sacrifice a little AHI for better batery capacity. Experiment with these setting before you go on trip and not during trip
  • put it in standby mode, though this is less important if you keep it unplugged while not in use.
Battery Backup: EcoFlow Delta 2