1. Prodotto finitoview
This KFD Car Power Supply is a high-quality DC adapter designed to provide reliable power to your ResMed AirSense 11 series CPAP machines while on the go. It converts your vehicle's 12V-24V DC power into the required 24V 2.71A 65W output for your medical device. Engineered with multiple safety features, it ensures safe and efficient operation.

Figure 1: The KFD Car Power Supply, showing the main adapter unit, the cigarette lighter plug for vehicle power, and the DC barrel connector for the CPAP machine.
2. Key Features and Safety Protections
- Ingresso volumetage: DC 12-24V (Max 12A), compatible with a wide range of vehicles from cars to trucks, buses, yachts, and portable power stations.
- Potenza di uscita: DC 24V 2.71A 65W, specifically designed for ResMed AirSense 11 series CPAP devices.
- Lunghezza del cavo: Total cable length of 2.6 meters (8.5 feet) provides ample reach within your vehicle.
- Costruzione durevole: Made from high-quality materials, the cable is designed to withstand over 10,000 bends, ensuring long-term reliability.
- Protezione multi-sicurezza:
- OVP (Output Over VoltageProtezione): Protegge da un volume di uscita eccessivotage.
- OCP (Output Over Current Protection): Safeguards against output current exceeding safe limits.
- SCP (Protezione da cortocircuito): Previene i danni causati dai cortocircuiti.
- OTP (Protezione da sovratemperatura): Protegge dal surriscaldamento.

Figure 2: Illustration of the cable's robust construction, highlighting its durability and internal wiring designed for longevity.
3. Compatibilità
This power supply is specifically designed for the following ResMed CPAP machine models:
- ResMed AirSense 11
- ResMed AirSense 11 AutoSet
- ResMed AirSense 11 Elite
- ResMed AirMini (Travel CPAP)
- Compatible with ResMed part numbers: 390000, 390010, R390-7230, 39205, E1399.
Important Note: This charger is NOT compatible with ResMed S9 or ResMed S10 series CPAP machines. Please verify your device model before use.

Figure 3: Visual guide to compatible and incompatible ResMed CPAP models. Ensure your device matches the compatible models shown.

Figure 4: The charger's universal design allows it to be used in a wide range of vehicles and with portable power stations that have a 12V-24V DC outlet.
4. Configurazione e installazione
- Collegamento all'alimentazione del veicolo: Insert the cigarette lighter plug of the KFD Car Power Supply firmly into your vehicle's 12V or 24V DC power outlet (cigarette lighter socket). Ensure a secure connection.
- Connect to CPAP Machine: Plug the DC barrel connector of the power supply into the power input port of your ResMed AirSense 11 or AirMini CPAP machine.
- Verifica connessione: Once connected, your CPAP machine should indicate that it is receiving power. Refer to your CPAP machine's user manual for specific power indicator details.

Figura 5: Esamples of connecting the KFD Car Power Supply to a portable power station and directly to a vehicle's DC outlet for powering a ResMed CPAP machine.

Figure 6: The 2.6-meter cable provides flexibility for placement of your CPAP machine within the vehicle.

Figure 7: Detail of the connection point on the CPAP machine and the power supply's connection to an external power source.
5. Funzionamento
Once properly connected to your vehicle's power outlet and your ResMed CPAP machine, the KFD Car Power Supply will automatically begin providing power. No additional settings or configurations are required on the power supply itself. Operate your CPAP machine as you normally would, following its specific user manual for therapy settings and usage.
Ensure your vehicle's engine is running or that your portable power station has sufficient charge to prevent draining your vehicle's battery or interrupting therapy.
6. Manutenzione e cura
- Pulizia: Wipe the power supply and cables with a dry, soft cloth. Do not use liquid cleaners or immerse the unit in water.
- Magazzinaggio: When not in use, store the power supply in a cool, dry place, away from direct sunlight and extreme temperatures. Coil the cable loosely to prevent kinks or damage.
- Ispezione: Periodically inspect the cable and connectors for any signs of wear, fraying, or damage. If any damage is observed, discontinue use immediately and replace the unit.
- Evitare il sovraccarico: Do not attempt to use this power supply with devices that exceed its 65W power rating or require different voltagspecifiche e/current.
7. Risoluzione Dei Problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| No power to CPAP machine. | Loose connection, vehicle outlet not active, power supply fault, incompatible device. | Ensure all connections are secure. Check if vehicle's power outlet is active (e.g., vehicle ignition is on). Verify CPAP machine compatibility. If issues persist, contact customer support. |
| L'alimentatore è caldo. | Normal operation (some warmth is expected), poor ventilation, excessive load. | Ensure adequate ventilation around the power supply. Do not cover it. If it becomes excessively hot or emits smoke/smell, disconnect immediately and contact support. |
| Potenza intermittente. | Loose connection, faulty vehicle outlet, damaged cable. | Check and secure all connections. Try a different vehicle power outlet if available. Inspect cable for damage. |
8. Specifiche
| Caratteristica | Dettaglio |
|---|---|
| Numero di modello | LWF176DE |
| Marca | KFD |
| Ingresso volumetage | DC 12-24V (Max 12A, 9-32V Max) |
| Volume di uscitatage | CC 24V |
| Corrente di uscita | 2.71A |
| Potenza di uscita | 65W |
| Lunghezza del cavo | 2.6 metri (8.5 piedi) |
| Tipo di connettore | 2-Pin DC Barrel |
| Caratteristiche speciali | OVP, OCP, SCP, OTP Protection |
| Componenti inclusi | Car charger unit |
| Dimensioni di spedizione | Dimensioni: 20 x 16 x 3.7 cm |
| Peso | 230 grammi |
9. Garanzia e supporto
KFD provides a Garanzia di qualità di 5 anni for this product, ensuring its reliability and performance. Additionally, a Garanzia di rimborso di 30 giorni è offerto per la vostra tranquillità.
For any questions, concerns, or support needs, please contact KFD customer service. We are committed to resolving any issues you may encounter with your product.
You can find contact information on the product packaging or through the retailer where you purchased the item. For example, the back of the product box (Figure 8) may contain manufacturer details.

Figure 8: Back of the product packaging with important information and manufacturer details. Note the model number C100, which might be an internal model, while LWF176DE is the item model number.