24V 3.75A USB-C DC Power Adapter for ResMed S9 Series – Charge Your CPAP Anywhere

Never let a missing power outlet interrupt your sleep therapy. The ResMed S9 Adapter is a compact, travel-friendly USB-C to DC converter designed specifically for ResMed S9 Series CPAP machines, including the S9 Elite, S9 AutoSet, and S9 VPAP ST.

This smart adapter draws power from USB-C Power Delivery (PD) sources or standard DC5521 inputs and delivers clean, stable 24V 3.75A to your ResMed S9 device. Perfect for home, travel, or emergency backup.

Compatible ResMed S9 Models

• ResMed S9 Elite

• ResMed S9 AutoSet

• ResMed S9 VPAP ST

• Other ResMed S9 Series CPAP machines requiring 24V input

Technical Specifications

• Model Number: V24-S9

• Output: 24V – 3.75A

• Input Options: PD 12-20V – 100W or DC5521 12-24V – 100W

• Cable Length: 122cm (about 48 inches)

• Weight: Approximately 70g (ultra-light for travel)

• Material: TPE jacket with copper wire core

• Connection Type: Plug in

• Condition: 100% OEM compatible

• Warranty: 1 year

Comprehensive Circuit Protection

The V24-S9 is built with multiple safety features to protect both the adapter and your CPAP machine:

• OVP – Over Voltage Protection

• UVP – Under Voltage Protection

• OCP – Over Current Protection

• OTP – Over Temperature Protection

• SCP – Short Circuit Protection

Certifications

CE / FCC / ROHS certified – compliant with international safety and environmental standards.

Why Choose the Volpower V24-S9 USB-C DC Adapter?

Dual Input Flexibility
Accepts power from USB-C PD sources (12-20V, up to 100W) or DC5521 inputs (12-24V, up to 100W). Use with power banks, laptop chargers, car adapters, or solar generators.

Perfect for Travel
At only 70g and 122cm long, this lightweight adapter slips easily into any CPAP travel bag. No more carrying bulky original power bricks across airports or campsites.

100% OEM Compatible
Engineered specifically for ResMed S9 Series machines. Delivers the exact 24V 3.75A your CPAP needs – stable, reliable, and safe.

Universal Input Compatibility
Works with virtually any USB-C PD power bank or charger that supports 12V-20V output at 100W. Also compatible with DC5521 power sources for maximum flexibility.

Built to Last
TPE jacket and copper wire core provide durability and efficient power transmission. Multiple circuit protections ensure long-term reliability.

Ideal For

• Air travel with USB-C power banks

• Camping and RV trips using portable power stations

• Home backup power during outages

• Car or truck use with DC5521 adapters

• Reducing clutter with a compact travel setup

Package Includes

One Volpower V24-S9 USB-C DC Converter Adapter (122cm)

Note: This is a power adapter only. USB-C power bank, DC5521 power source, and ResMed S9 CPAP machine are not included.

Power Your ResMed S9 Anywhere – No Wall Outlet Required

Upgrade your CPAP power setup with the Volpower V24-S9. Whether you're camping off-grid, flying across time zones, or simply want a lighter travel kit, this 24V 3.75A USB-C DC adapter keeps your ResMed S9 Elite, AutoSet, or VPAP ST running all night long.