BiXPower 12V / 24V Car Power Adapter for ResMed AirSense 11 CPAP
Power your ResMed AirSense 11 CPAP directly from a compatible car, truck, RV, or portable DC power source — no AC inverter required.
The BiXPower DC24V-AS11-CAR is a compact, high-efficiency DC-to-DC power converter designed to power ResMed AirSense 11 PAP machines from compatible 12V and 24V DC vehicle electrical systems.
This convenient CPAP car power adapter includes a cigarette lighter input cable and a dedicated ResMed AirSense 11 power connector. Simply connect the adapter to a suitable vehicle accessory power socket and connect the output to your AirSense 11 machine.
The converter regulates variable DC input voltage to a stable 24V DC output, delivering up to 65W of power. It is a practical solution for vehicle travel, RV camping, truck sleeper cabins, and portable CPAP power systems.
Key Features & Benefits
- Designed for ResMed AirSense 11: Dedicated CPAP power connector for compatible AirSense 11 PAP machines.
- 12V / 24V Vehicle Power: Designed for compatible car, truck, and RV DC accessory outlets.
- Regulated 24V Output: Converts variable DC input voltage into stable 24V DC power.
- 65W Maximum Output: Suitable for compatible CPAP configurations within the converter's rated power capacity.
- No AC Inverter Needed: Converts DC power directly without first converting it to household AC power.
- Compact and Lightweight: Approximately 90 x 36 x 26mm and 142g for the converter.
- Cigarette Lighter Plug Included: Convenient connection to compatible vehicle power outlets.
- Flexible DC Power Options: The converter also supports compatible external battery connections.
How the AirSense 11 Car Power Adapter Works
Most cars provide nominal 12V DC power, while many commercial trucks and other vehicles use nominal 24V electrical systems.
The ResMed AirSense 11 requires an appropriate 24V DC power supply and a compatible machine-side connector.
The BiXPower DC-to-DC converter accepts variable DC power and regulates its output to 24V DC. The included cigarette lighter input cable allows convenient connection to compatible vehicle accessory outlets.
Power Conversion:
12V / 24V Vehicle DC Power
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BiXPower DC-to-DC Converter
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Regulated 24V DC Output — Maximum 65W
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ResMed AirSense 11 CPAP
Because this adapter converts DC power directly to DC power, it eliminates the need for a separate DC-to-AC inverter in a compatible vehicle setup. This can help reduce unnecessary power-conversion losses.
Flexible DC Input Connections
The power converter provides a 5.5 x 2.5mm female DC barrel input connector and two 16AWG bare input wires.
The included vehicle input cable features a cigarette lighter plug on one end and a 5.5 x 2.5mm male DC barrel connector on the other end.
This cable connects the converter to a compatible 12V or 24V vehicle accessory power socket.
The converter's output cable uses 18AWG wires and the dedicated connector arrangement for ResMed AirSense 11 machines.
Compact Design for Travel
The converter measures approximately 90 x 36 x 26mm (3.5 x 1.4 x 1.0 inches) and weighs approximately 142g (5 oz).
Its compact design makes it easy to carry in a CPAP travel bag or store with vehicle and portable battery accessories.
Technical Specifications
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Product Model
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DC24V-AS11-CAR
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Product Type
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Vehicle DC-to-DC CPAP Power Adapter
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Vehicle Power System
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Nominal 12V / 24V DC
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Converter Input Range
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9V–32V DC
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Output Voltage
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24V DC Regulated
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Maximum Output Power
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65W
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Converter Input Connector
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5.5 x 2.5mm Female DC Barrel
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Input Wires
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16AWG Bare Wires
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Output Wiring
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18AWG
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CPAP Connection
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Dedicated ResMed AirSense 11 Connector
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Vehicle Input Cable
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Cigarette Lighter Plug to 5.5 x 2.5mm Male DC Barrel
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Converter Dimensions
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90 x 36 x 26mm
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Converter Weight
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Approx. 142g (5 oz)
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Designed For
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ResMed AirSense 11 PAP Machines
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How to Power Your AirSense 11 from a Car or Truck
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Check the Vehicle Power Outlet.
Verify that the vehicle provides compatible 12V or 24V DC power and that its accessory socket is rated to supply sufficient current for the converter.
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Connect the Cigarette Lighter Cable.
Plug the cable's 5.5 x 2.5mm male barrel connector into the converter's DC input jack.
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Connect the CPAP Machine.
Insert the converter's dedicated AirSense 11 power connector into the machine's power input.
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Connect Vehicle Power.
Insert the cigarette lighter plug into the vehicle's compatible accessory power socket.
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Verify Operation.
Confirm that the CPAP machine starts and operates normally with your intended settings.
Important Vehicle Power Information:
Some vehicle accessory sockets turn off when the ignition is off. Other sockets remain powered and may discharge the vehicle's starting battery. Confirm your vehicle's outlet behavior and avoid leaving the adapter connected unattended for extended periods.
Make sure the socket, fuse, wiring, and power source can safely supply the required current. Do not use a damaged or loose accessory socket.
Battery and CPAP machine are not included.
Included 12V / 24V Cigarette Lighter Input Cable
The included vehicle power cable makes it easy to connect the BiXPower converter to a compatible car, truck, or RV DC accessory socket.
One end features a standard-style vehicle cigarette lighter plug. The opposite end has a 5.5 x 2.5mm male DC barrel connector that connects to the converter's input jack.
This detachable input cable provides convenient vehicle power access without requiring permanent installation or modification of the vehicle's electrical system.
Ideal for Vehicle Travel and Portable CPAP Power
This BiXPower adapter provides a convenient DC power option for compatible AirSense 11 CPAP configurations in a variety of environments.
- Cars and SUVs: Power your AirSense 11 from a suitable 12V accessory outlet.
- Commercial Trucks: Connect to a compatible 24V DC accessory socket in truck sleeper cabins.
- RVs and Campers: Use compatible onboard DC electrical systems without a separate AC inverter.
- Camping: Connect to a suitable portable battery or DC power system.
- Emergency Backup: Use with a compatible external DC power source when household AC power is unavailable.
For overnight CPAP operation, a properly sized dedicated battery system is generally preferable to relying on a vehicle's starting battery.
Power Requirements & Compatibility
Maximum Output: 65W
The converter provides regulated 24V DC output with a maximum rated power of 65W.
Actual AirSense 11 power consumption varies depending on therapy pressure, humidifier settings, heated tubing, and other operating conditions.
The AirSense 11 may require more than 65W in certain configurations, especially when heated accessories are operating. This adapter should only be used when the total power requirement remains within its rated capacity.
Battery Compatibility: The converter may also be connected to suitable external DC batteries through a correctly rated cable and connector. Confirm input voltage, center-positive barrel polarity where applicable, and available power before connecting.
Safety: This adapter does not contain a battery and does not provide uninterrupted power during loss of its DC input. If uninterrupted therapy is essential, use a properly designed backup system.
Frequently Asked Questions
Can I power my ResMed AirSense 11 from a 12V car outlet?
Yes. The BiXPower DC24V-AS11-CAR is designed to convert compatible 12V vehicle DC power to regulated 24V DC for AirSense 11 machines, subject to its 65W maximum output rating.
Will this adapter work in a 24V truck?
Yes, when connected to a compatible 24V DC accessory outlet with sufficient power capacity. Confirm the vehicle's outlet specifications before use.
Do I need a power inverter?
No. This adapter converts DC power directly to 24V DC, eliminating the need for a separate AC inverter in compatible setups.
Can I use the AirSense 11 humidifier and heated tubing?
Only when the total CPAP power demand remains within the converter's 65W rating. Some heated configurations may require more power and should not be used with this adapter.
Can I use this converter with a portable battery?
Yes. The converter supports compatible DC battery power sources within its specified input range, provided the battery can deliver sufficient power and uses the correct connector and polarity.
Can I leave the adapter connected while the vehicle is parked?
That depends on the vehicle's accessory outlet and battery system. Some sockets shut off with the ignition, while others remain active. Continuous operation can discharge a vehicle battery, so a dedicated auxiliary battery is recommended for extended stationary use.
Does the package include a CPAP machine or battery?
No. The package includes the DC power converter and cigarette lighter input cable only.
Package Contents
- 1 x BiXPower 24V DC-to-DC Power Converter for ResMed AirSense 11
- 1 x Cigarette Lighter DC Input Cable with 5.5 x 2.5mm Male Connector
ResMed AirSense 11 CPAP machine, battery, and other accessories are not included.
Convenient DC Power for Your AirSense 11
The BiXPower DC24V-AS11-CAR provides a compact and convenient way to power compatible ResMed AirSense 11 CPAP configurations from 12V or 24V vehicle DC systems. With regulated 24V output, a dedicated AirSense 11 connector, and an included cigarette lighter input cable, it is a practical choice for vehicle travel, RV camping, and portable DC power applications within its 65W rating.
ResMed and AirSense are trademarks of their respective owners. BiXPower is an independent accessory supplier. Compatibility does not imply endorsement or affiliation with ResMed.
