1. Universal Power Solution for ResMed S9 Series

This custom-made Type-C to ResMed S9 power cable is fully compatible with ResMed S9 Elite, S9 AutoSet, and S9 VPAP ST CPAP machines. It replaces the original power supply with a compact, lightweight design (only 70g), making it perfect for home, travel, and outdoor use. The 122cm total length provides flexible placement.

2. Three Power Input Methods – One Cable

No matter where you are, this cable has you covered:

• PD Charger / PD Power Bank – Use with any 65W+ USB-C PD source (12–20V input, 100W max). Note: Avoid 140W (28V) PD chargers.

• DC Power Adapter / DC Power Bank – Connect via DC5521 input (12–24V, 100W max).

• Car Cigarette Lighter – Use a DC5521 car charger cable (12–24V vehicle system).

The cable outputs a stable 24V / 3.75A to your CPAP machine, ensuring reliable therapy.

3. Safe, Efficient & Travel-Friendly

• Wide voltage input (12V–24V) – Works with most portable power stations, laptop adapters, and solar generators.

• Automatic current matching – Up to 3.75A output, conversion efficiency improves with higher input voltage.

• Foolproof design – Custom mold with indicator light; Type-C and DC5521 ports are input-only to prevent reverse connection.

• Compact & durable – Weighs just 70g, much smaller than the original brick charger.

4. Important Usage Guidelines

• Do not reverse connections – Type-C/DC5521 = INPUT only; the other end = OUTPUT to CPAP machine.

• Input voltage must not exceed 24V – Higher voltage may damage the CPAP.

• Large vehicles may have cigarette lighter outputs >24V – use a PD car charger (20V max) for regulation.

• Disconnect when not in use to avoid unnecessary power drain.

5. What’s Included

• 1 × Type-C to ResMed S9 24V CPAP Power Cable (122cm)

• Input options: USB-C PD (12–20V) or DC5521 (12–24V)

• Output: Dedicated 24V connector for ResMed S9 series

Perfect replacement for original charger – use with phone/laptop PD chargers, power banks, car outlets, or DC power stations.