Portable Outlet DC2AC Car Charging Inverter

The Portable Outlet 100W DC-to-AC Car Charging Inverter plugs into your vehicle's 12-volt outlet and converts that DC power into standard AC output, letting you run an AC-powered CPAP machine, charge a phone, or power other small electronics anywhere you have access to a car.

Is This Inverter Right for You?

This is the right accessory if your CPAP machine uses a standard AC power supply (most full-size home CPAP and BiPAP machines do) and you want to run it from a vehicle during road trips, camping, or as an emergency backup. If you specifically use the ResMed AirMini and want the most efficient connection to a 12V or 24V source, the dedicated AirMini DC Converter is a more direct option — see the FAQ below for the difference.

Key Features at a Glance

• Converts a vehicle's 12V DC outlet into standard AC output
• 100W output, enough for most CPAP machines and small electronics
• Standard AC outlet plus additional USB ports
• Built-in protection against overheating, overcurrent, and overcharging
• Peak efficiency over 95%
• Compact and simple to operate — plug in and go

Why Choose This Inverter

Turns Any Car Outlet Into a Real AC Source

Rather than needing a machine-specific DC adapter, this inverter produces standard AC power, which means it works with your CPAP's existing, unmodified AC power supply — the same one you already use at home. No separate adapter to buy for your specific machine.

Built-In Safety Protections

Overheating, overcurrent, and overcharging protections are built in, which matters for a device that's going to be powering medical equipment. The unit also includes low-battery and high-battery shutoff points to help protect both your vehicle's battery and your connected equipment.

More Than Just CPAP Power

With a standard AC outlet and USB ports built in, this inverter doubles as general-purpose power for phones, tablets, or other small electronics during a road trip — useful if you want one device covering more than your CPAP alone.

How to Use It

1. Place the inverter on a level, dry surface, protected from moisture or splashes, with at least 2 inches of clearance around it for cooling.
2. Insert the DC connector into your vehicle's 12-volt socket (commonly called a cigarette lighter outlet).
3. Wait for the green light, which signals AC power is available.
4. Connect your CPAP machine or other equipment to the inverter's AC outlet.

The inverter operates best within an ambient temperature range of 32°F to 104°F (0°C to 40°C).

Specifications

User Guide

Download the comprehensive user guide for complete setup and safety information.

Complete Your Travel Power Setup

Using a ResMed AirMini specifically? For a more efficient direct connection, see the ResMed AirMini DC Converter instead of running it through this inverter. For a battery-based backup rather than a car-only solution, see the Portable Outlet UPS & CPAP Battery or the Portable Outlet Solar Panel Charger. See more from the brand on the Portable Outlet brand page.

Frequently Asked Questions

Will this work with my AirMini, or do I need the AirMini DC Converter instead?

This inverter will work with an AirMini using its standard AC power adapter, but it involves converting DC to AC and then back to DC again, which is less efficient than a direct connection. If you're specifically using an AirMini, the dedicated AirMini DC Converter connects directly to a 12V/24V source without that extra conversion step, and is the option ResMed designs specifically for that machine.

What size CPAP machines can this power?

This inverter outputs 100W, which covers most standard CPAP and BiPAP machines. Check your specific machine's power supply rating to confirm it falls within that limit, especially if you use a heated humidifier or heated tubing, which draw more power.

Can I charge other devices with this at the same time?

Yes. It includes USB ports in addition to the main AC outlet, so you can charge a phone or other small device alongside your CPAP.

Does this protect my equipment if my car battery runs low?

Yes. It includes low-battery alarm and shutdown thresholds designed to cut power before your vehicle's battery is drained too far, along with overheating and overcurrent protection.