Power Station (RPS) II Battery Pack for CPAP & BiLevel Machines (BACKORDER)

ResMed Power Station (RPS) II Battery Pack for CPAP & BiLevel Machines (BACKORDER)

4.60 Average Rating of 5 Reviews Read Reviews

$699.00 On Sale $674.00
Travel Bag:
Recharging Adapter:
DC Power Adapter:
AC Power Adapter (for Recharging):


At the heart of the RPS II is a powerful Lithium-Ion Battery like those found in most laptop computers. A single battery weighs just 2-pounds and will power your ResMed CPAP for 13-14 hours at 10CM. If you need more power you use the optional Coupler Kit to connect two RPS II batteries in series. When coupled the secondary battery will automatically take over when the first battery runs out. RPS II Batteries recharge with the standard AC Power Supply from any compatible CPAP or BiLevel device so there is no extra recharging cord needed.

The RPS II's Travel Bag is designed to hold one or two batteries and includes a handy access panel so that batteries can be connected to a CPAP device or recharged while still in the bag. In addition a zippered pouch on the front of the bag can stores cables and accessories.

RPS II is the ideal travel CPAP battery solution for wherever life takes you. It meets all FAA regulations for use on commercial flights, and it's also great for use when camping, biking, or during unexpected power outages at home.


Product Information

  • Manufacturer ResMed
  • In the Package RPS II Battery, Travel Bag, PSU Recharging Adapter, and DC Power Adapter. Select Additional Battery & Charging Options in Cart.
  • Part Number(s) 24923
  • HCPCS Code E1399
  • GTIN / UPC Code 00619498249237
  • Warranty 6 Months - Review manufacturer's documentation for full warranty details.

FAA Approved

  • Yes, RPS II is Approved for Use on Commercial Airlines This product is approved by the FAA for use on all commercial flights within the US and all international flights that depart or arrive in the US. Click here for TSA / FAA information on traveling with sleep and oxygen therapy. Always contact your airline prior to your flight to confirm any requirements they may have (i.e. a copy of your prescription or a letter of medical necessity) for allowing your device on board.


  • All S9 CPAP & BiLevel Machines (S9 Escape, S9 Elite, S9 AutoSet, S9 VPAP S, S9 VPAP Auto, S9 VPAP ST, S9 VPAP Adapt SV, etc.), All AirSense 10 CPAP Machines (AirSense 10, AirSense 10 Elite, AirSense 10 AutoSet, AirSense 10 AutoSet for Her, etc.), All AirStart 10 CPAP Machines, All AirCurve 10 BiLevel Machines (AirCurve 10 S, AirCurve 10 ST, AirCurve 10 VAuto, AirCurve 10 ASV, etc.)


  • Due to Federal Regulations battery packs like this one cannot be sent via air shipping methods unless they are contained within a device, like a CPAP machine, nebulizer or oxygen concentrator.

Physical Specifications

  • Available Color(s) Black & Silver
  • Size (Approx) Travel Case = 11.25 x 7.5 x 4.5 Inches

Power Specifications

  • AC (Wall) Power Universal AC power 100-240V, 50-60Hz (Auto Sensing)

Battery Specifications

  • Battery Type Lithium Ion (Li-ion) Battery
  • Battery Size 9 x 5 x 1 Inches (Approx)
  • Battery Weight 2 Lbs (Approx)
  • Battery Run Time Run times for most CPAP & BiLevel machines average between 13-14 hours at 10 CM. Run times will vary depending on the age of your machine, breath rate, leak rate, and machine settings. (Average)
  • Recharge Time 4 Hours (Typical Per Battery)
  • Battery Life500 Cycles (Average)
  • Battery NotesRPS II Battery Packs recharge using the included PSU Adapter and the AC Power Supply with Cord from your existing CPAP or BiLevel Device. The Off/On Switch on the back of the RPS II Battery must be in the 'On' position when charging. Battery should not be left for more than 3 months without being fully recharged. For complete instructions review the documentation that came with your equipment.

    • Heated Humidification & Heated Tubing Using a heated humidifier and/or heated tubing with your battery pack MAY significantly reduce run times. If you require a humidifier with your sleep therapy device consider using it in passover mode, with the heater turned off, to help extend battery life. For additional information on average run times review the Battery Compatibility & Run Times PDF available in the Downloads section of this page.


Average Rating of
Total 5 Reviews
  • .Good Product and Customer Service

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    A piece was missing. I contacted Direct Home and the problem was resolved as promptly as possible. Battery works as expected and maintains charge for at least a few weeks so far
    Written by RealWolverine-15832, 2021-05-29
  • .Mandatory for those with Complex Sleep Apnea

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    I have complex sleep apnea. That means that I stop breathing during the night, and my AirCurve BiPap machine is a medical necessity. When the power goes out, unless I had a battery backup, I could die. So, for those with Complex Sleep Apnea, this is the only solution for power failure, or when going on a trip where there is not power available.
    Written by psutherland19, Texas2018-07-28
  • .ResMed Regret

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    I was disappointed with my purchase.
    Written by rfritz-13357, 2016-04-08
  • .Great for powers failures.

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    Great accessory and alternative when the power fails.
    Written by sherryleeslb, 2014-02-14
  • .ResMed Battery

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    Quite happy so far with 2 weeks of experience. Charged and used once and worked well.
    Written by ajayparghi, 2014-01-30