The silver Medicharge Flex | CPAP Battery | 276Wh has a digital display, wireless charging symbol, flashlight on one end, and “Medicharge” branding—making it a reliable portable power supply for CPAP machines.

A Medicharge Flex | CPAP Battery | 276Wh portable power bank with a partially open silver casing displays cylindrical batteries, internal components, buttons, a digital display, and multiple ports—perfect as a CPAP machine power supply.

A silver Medicharge Flex | CPAP Battery | 276Wh, featuring an LCD at 61% power, multiple ports and buttons, plus a wireless charging symbol on top. Perfect as a reliable CPAP machine power supply for travel or emergencies.

A close-up of the Medicharge Flex | CPAP Battery | 276Wh shows four ports—USB-C IN/OUT, USB-C OUT, DC IN/OUT, and DC 12V OUT—each with rubber flaps; perfect as a portable CPAP battery or power supply.

A cylindrical, metallic-gray Medicharge Flex CPAP Battery (276Wh) with a textured grip and rectangular indented strip—perfect portable power for your CPAP machine. Shown from above on a white background.

A silver and white, rounded-edge device viewed from the back with product info and certification symbols near the bottom—the Medicharge Flex | CPAP Battery | 276Wh is perfect as a portable CPAP battery or power supply.

A Medicharge Flex | CPAP Battery | 276Wh sits on a wooden picnic table, powering a CPAP machine, smartphone, and solar panel—an ideal portable power supply for off-grid outdoor adventures.

Medicharge Flex

CPAP Battery

276Wh

Name: Medicharge Flex | CPAP Battery | 276Wh
Brand: iTechworld
SKU: CPAPBAT
Price: 299.0 AUD
Availability: InStock
Rating: 4.6 (28 reviews)

4.6

Multi-voltage switching
Pass-through charging

Regular price: $299
Sale price: $299
Regular price: ~~$399~~

Tax included. Shipping calculated at checkout.

25% OFF

or 4 x $74.75

Product variants:

Australian Family Owned & Operated

Established in 2006, powering Aussies since.

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Product Features

INTUITIVE

LED DISPLAY

PASS-THROUGH

CHARGING

MULTI-VOLTAGE

SWITCHING FUNCTION

UP TO
100W OUTPUT

WIRELESS

CHARGING PAD

TACTICAL-GRADE

LED TORCH

Overview

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With the Medicharge Flex portable CPAP battery, you get a seamless travel CPAP machine with battery that travels wherever you do. This ultra-trim lithium unit packs 276Wh into a compact, carry-friendly casing, so you can keep your machine running all night or charge your phone, laptop, and accessories during the day. A simple LED display shows the state of charge at a glance, while the four-button voltage selector lets you choose between 12V, 16.5V, 19V and 24V outputs in seconds.

Charge on the move via solar, USB-C or AC mains – the pass-through capability even lets you power your CPAP while the Medicharge Flex recharges. Use the wireless pad for up to 15W of hands-free charging or plug your devices into the USB-A and USB-C ports for high-speed top-ups. You can also switch on the inbuilt LED torch with SOS and flash modes when you need a light!

Built to withstand life on the road, the Medicharge travel CPAP machine with battery delivers reliable, multi-voltage power in a convenient, lightweight package. Whether camping, travelling or wanting peace of mind for sleep at home, this versatile battery ensures you and your CPAP never miss a beat!

The Medicharge Flex offers multiple adapters that enable use with some of the most common CPAP machines on the market, including: ResMed AirSense 10™ & ResMed AirCurve 10™, ResMed AirSense Mini™ & ResMed AirSense11™, ResMed S9™ and the Phillips DreamStation™ & Philips DreamStation 2™.

CPAP Model & Setup	Device Power Consumption (W)	Estimated Runtime (276 Wh Medicharge)
AirSense 10 – no humidifier, SlimLine tubing	6.8W	40.6 hrs
AirSense 10 – ClimateLine humidifier (lowest)	7.5W	36.8 hrs
S9 AutoSet – no humidifier	7.5W	36.8 hrs
S9 AutoSet – with humidifier @ 27 °C	12W	23.0 hrs
AirSense 11 – no humidifier	30–45W	6.1 hrs –9.2 hrs
AirSense 11 – with humidifier	65W	4.2 hrs

Note: Expected run times may vary depending on model.

Package Contents

1 x Medicharge Flex
1 x Medicharge Flex Cover
1 x AC adapter
1 x User Guide HERE
1 x USB-C to USB-C cable
1 x USB-A to USB-C cable

Multi-voltage switching12V/16.5V/19V/24V
Wireless chargingUp to 15W output
Charge viaSolar, USB-C and AC mains
Pass-through functionalityUse your machine whilst charging

Battery
Battery type:	Lithium
Rated capacity:	276.48Wh
Rated battery voltage:	14.4V
Input
DC input:	DC 12V-24V/4A (MAX 80W)
USB-C input:	DC 5V/3A 9V/3A 12V/3A 15V/3A 20V/5A (MAX 100W)
Output
USB-C output:	DC 5V/3A 9V/3A 12V/3A 15V/3A 20V/5A
USB-C output:	DC 5V/3A 9V/3A 12V/2.5A
USB-A output:	DC 5V/3A 9V/2A 12V/1.5A
DC output:	DC 12V/6.7A 16.5V/4A 19V/3.8A 24V/3.8A
Cigarette socket:	DC 12V/10A
Wireless charging pad:	15W
General
Weight:	1.5kg
Dimensions (LxWxH):	230 x 125 x 44mm
Operating temperature:	0°C ~ 40°C

A: Length: 230mm
B: Width: 125mm
C: Height: 44mm

Frequently Asked Questions about the Medicharge Flex CPAP Battery

How long will the Medicharge Flex power my CPAP machine before needing a recharge?

Without the humidifier, you can get 2-4 nights of use from your CPAP machine with battery.

Can I use the Medicharge Flex to charge my laptop and CPAP at the same time?

Yes, run your CPAP machine with a battery and also charge your laptop from the Medicharge Flex simultaneously. Pass‑through capability allows you to recharge the Flex itself (via the AC adapter or solar) while powering both your CPAP and laptop.

What is the lifespan of the Medicharge Flex battery, and how do I maximise its longevity?

To keep your Medicharge Flex performing at its best, make sure the battery is charged to at least 75% before storing to prevent the unit from being over discharged. To maintain battery pack health and extend its cycle life, it is important to fully charge and discharge the unit once every 3 months. Lifespan is +1,000 cycles.

Does the Medicharge Flex support pass-through charging for CPAP machines while it's being charged?

Absolutely—it's built-in pass-through functionality lets you power your CPAP and recharge the Flex at the same time, whether you’re plugged into mains, USB-C, or solar.

How do I know when the Medicharge Flex battery is fully charged?

When the LED display shows “100%”.

Is the Medicharge Flex waterproof or water-resistant for outdoor use?

The Medicharge Flex is not waterproof and should not be used where it can get wet.

Can I use the wireless charging pad with any device, or is it specific to certain models?

Wireless charging is available to any device that permits.

Does the Medicharge Flex have overcharge protection to prevent damage to my devices?

Yes, the Medicharge Flex has an inbuilt BMS (Battery Management System) that protects against overload, short circuits and over-temperature faults.

What is the maximum power output of the Medicharge Flex for devices like laptops or phones?

The CPAP machine with battery offers up to 100W of power from its USB‑C port—plenty to fast‑charge most laptops—and an additional 15W from the wireless charging pad for phones or small devices.

Medicharge Flex CPAP Battery Download

REVIEWS

4.6

Rated 4.6 out of 5 stars

Based on 28 reviews

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28 reviews

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Rated 5 out of 5 stars
1 week ago
Brilliant game changer for multiday hiking!
This battery has incredible energy density for its size and weight! Using the ResMed AirMini with either the N20 or F20 masks, the Medicharge has powered CPAP therapy at variable pressures, and ambients temps, for between 5-7 nights for me.
At 1.5kg, it’s a heavy beast to lug around on foot, and too powerful to fly with at 276 Wh, but it’s possibly the best option out there if you need an economical solution for more than a couple of nights if you’re off grid.
Trav M.
Verified Buyer
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Rated 5 out of 5 stars
4 weeks ago
Top unit
Top unit plenty of storage and good price
Kim S.
Verified Buyer
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Rated 5 out of 5 stars
1 month ago
Great battery for power outages.
Really happy with this battery. Living where we have power outages quite often, its great, no longer have to go without my cpap.
Kath
Verified Buyer
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Rated 4 out of 5 stars
2 months ago
CPAP Battery
Works well however quite heavy
Peter C.
Verified Buyer
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Rated 1 out of 5 stars
3 months ago
1 Star
Rubbish product. Only powers my machine for about 6h
Andrew
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Rated 5 out of 5 stars
3 months ago
Medicharge Flex
Great unit, 7 hr CPAP use only down to 65%
Easy charge in caravan or while travelling in the car!!
Michael S.
Verified Buyer
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Rated 5 out of 5 stars
3 months ago
Medicharge flex portable cpap battery
As described, tested well
David W.
Verified Buyer
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Rated 5 out of 5 stars
3 months ago
Medicharge for my CPAP
Original was replaced under warranty. The service dept were easy to deal with and advised ne it would replaced.
Considering my experience I was happy with product and after sales service.
Graeme H.
Verified Buyer
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