What is the power consumption of the Mark 3?

The power consumption of the Mark 3 varies depending on the operating mode: Rocket Mode: 350–500W Cool Mode: 200–350W Sleep Mode: 150–200W Fan Mode: 12–17W Dry Mode: 350–500W Care Mode: 150–350W Heating Mode: 200–500W

How long can I run the Mark 3?

When plugged into a standard AC wall outlet (100V–240V), the Mark 3 can operate continuously, as long as it is properly maintained and in good working condition. If running on Mark 3 battery power , the runtime depends on the selected mode and the number of batteries connected. Here's a breakdown of the expected working time: Rocket Mode (350–500W): With one battery (1022Wh): 2–3 hours With two batteries (2044Wh): 4–6 hours Cool Mode (200–350W): With one battery (1022Wh): 3–5 hours With two batteries (2044Wh): 6–10 hours Sleep Mode (150–200W): With one battery (1022Wh): 5–7 hours With two batteries (2044Wh): 10–14 hours Fan Mode (12–17W): With one battery (1022Wh): 60–85 hours With two batteries (2044Wh): 120–170 hours Dry Mode (350–500W): With one battery (1022Wh): 2–3 hours With two batteries (2044Wh): 4–6 hours Care Mode (150–350W): With one battery (1022Wh): 3–7 hours With two batteries (2044Wh): 6–14 hours Heating Mode (200–500W): With one battery (1022Wh): 2–5 hours With two batteries (2044Wh): 4–10 hours

Is there an app for the Mark 3?

Yes! The Mark 3 app (currently in beta) is available for both iOS and Android: iOS : Download from the Apple App Store. Android : Click on the link to download via Google Drive: https://drive.google.com/file/d/1KONne4zOUUfvzEdxHNYoT0-shFkQ93fz/view?usp=sharing

Is it necessary to install ducts?

Whether or not ducts are necessary depends on your environment and setup: In open spaces: Ducts are not required, and you can use the Mark 3 to cool the area effectively without them. In enclosed spaces (such as tents, vans, or boats): We recommend installing the rear dual ducts to enhance cooling efficiency and improve ventilation. For targeted cooling, you can also install the front air outlet duct in either case to direct airflow more precisely to the desired area.

How long does the Mark 3 battery last?

The battery runtime of the Mark 3 depends on the selected operating mode and how many batteries are connected. Here are the approximate runtimes: Rocket Mode (350–500W) One battery: 2–3 hours Two batteries: 4–6 hours Cool Mode (200–350W) One battery: 3–5 hours Two batteries: 6–10 hours Sleep Mode (150–200W) One battery: 5–7 hours Two batteries: 10–14 hours Fan Mode (12–17W) One battery: 60–85 hours Two batteries: 120–170 hours Dry Mode (350–500W) One battery: 2–3 hours Two batteries: 4–6 hours Care Mode (150–350W) One battery: 3–7 hours Two batteries: 6–14 hours Heat Mode (200–500W) One battery: 2–5 hours Two batteries: 4–10 hours

How do I recharge the Mark 3 battery?

You can recharge the Mark 3 battery through several methods: Using the included 500W AC adapter ( charges to 80% in about 2 hours ). Using another Mark 3 battery (via the built-in charging cable). Using solar panels (12–60V input; solar charging cable sold separately). Using a 12V car cigarette lighter (cable sold separately).

One Mark 3 portable air conditioner is connected to a battery.

One Mark 3 unit is connected to two batteries.

$1,399.99 $1,299.99

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Type

Mark 3 Basic (AC Only)

Mark 3 (AC + 1 Battery)

Mark 3 (AC + 2 Batteries)

View Mark 3 Series User Manual

Cooling Capacity	1550W/ 5280BTU
Heating Capacity	1700W/ 5800BTU
Working Mode	Rocket/Cool/Sleep/Fan/Dry/Care/Heating
Cooling Rated Input	500W
Wind Speed Level	4
Rated Working Voltage	48V DC
Working Voltage Range	38V-58.5V
Thermostat Setting	Cooling: 61℉-82℉/16°C - 28°C Heating: 64℉-88℉/18°C - 31°C Dehumidifying: 15% - 90% relative humidity
AC Adapter Input	100V-240V (50Hz/ 60Hz)
Ambient Temperature for Operation	50°F-104°F/10°C-40°C
Ambient Temperature for Storage	14°F-140°F/-10°C-60°C
Refrigerant	R290
Unit Size	22"L x 10"W x 12"H / 56cm x 26cm x 31cm
Weight	22lbs/10kg
Moisture Protection	IPX4
Ventilation Configuration	Dual Hose

Mark 3 Battery Specification

View Mark 3 Battery User Manual

Battery Type	21700 Lithium-Ion Polymer Battery
Net Weight	14lbs/6.4kg
Unit Size	20"L x 8"W x 4"H / 51cm x 21cm x 11cm
Capacity	1022Wh
DC Charge Input Voltage	12V-60V
Charge from 0% to 80%	About 2 hours (by official power adapter)
Safety	Short protection Over current protection Low voltage protection Over temperature protection
Chainable	Support 2, 3, 4, or more batteries chaining one after another
Operating Temperature	14°F-104°F/-10℃-40℃
Output Power Max	550W
Output Voltage	42V-58.8V
12V Anderson Output	12V/10A Max(120W)
USB Type C	PD(100W Max)
USB Type A	QC 3.0 18W
Charging Method	Power adapter from the wall outlet Solar Panels Cigarette Port
Charging Limited Current	10A
Charging while discharging	Yes

ZERO BREEZE Mark 3 Air Conditioner × 1

50V DC Power Adapter for Wall Outlet × 1

2.4G Wireless Remote Controller × 1

Drainage Pipe × 1

Front Outlet Duct × 1
Φ4.33″ (11 cm)

Front Inlet Duct / Rear Inlet Duct × 1
Φ5.12″ (13 cm)

Rear Outlet Duct × 1
Φ5.91″ (15 cm)

Front Inlet Adapter × 1

Front Outlet Adapter × 1

Rear Inlet Adapter × 1

Rear Outlet Adapter × 1

ZERO BREEZE Mark 3 User Manual × 1

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Keep Cool Wherever You Go

Sleep cool-engine off, regs OK.

Ban on idling? No problem. Mark 3 ducts 72℉ air straight to the bunk all night.

Off-grid A/C for 12-ft trailers.

1 kWh pack gives 6h Eco mode-zero hookups, zero campground noise.

Carry-up, clamp-in, chill at 8ft.

22 lb weight + 46 dB sleep mode keeps RTT at 73 °F even in 105 °F Moab nights.

Kill the genset, keep the silence.

Auto-drain pump & 48 V ready. Run on housebank while you swing on the hook.

5,280BTU

|

22lb

|

46dB

More cooling per pound than ANY portable A/C. Period.

How Mark 3 Compares in the Real World

	Mark 3 (Carry-Size Battery A/C)	Big-Block Battery A/C 50-lb Class	Traditional Portable A/C + Generator
Cooling Power	5,280 BTU	≈ 5,000 BTU	≈ 5,000 BTU
Main-Unit Weight	22 lb / 10 kg	33.7 lb / 15.3 kg 1.5× heavier	58.2 lb / 26.3 kg 2.6× heavier
Main-Unit Volume	1,525 in³ (≈ 25 L)	3,150 in³ (≈ 52 L)	3,251 in³ (≈ 53 L)
Power-Source Weight (≈ 1 kWh)	14 lb / 6.4 kg	21.4 lb / 9.7 kg	28.7 lb / 13 kg
Total to Lift Every Night	36 lb / 16 kg	55 lb / 25 kg	86 lb / 39 kg
Set-Up Time	Plug & cool in 60 s	Two-hand carry • manual drain	Unload gen • fuel • mount A/C
Noise @ Sleep	46 dB	55 dB+	≥ 65 dB
Cabin Foot-Print	Like a 25 L travel duffel	Carry-on suitcase	Two bulky boxes + fuel can
Price (unit + power)	$1,299 – 1,899	$1,999+	$700 – 1,000

*Weights & volumes from public specs. Generator combo = 1 kW inverter unit + 5k BTU portable A/C.

Thermostat Setting

We know everyone experiences heat differently so take advantage of the thermostat feature and let yourself forget that the temperature was ever an issue. Adjust the cooling, heating, and dehumidifying ranges freely according to your needs.

Innovation Made for Outdoor Cooling

True Portable Cooling

Purpose-Built Cooling System

Hands-Free Drainage

Flexible Off‑Grid Power

Unlike other "portable" ACs with bulky 18–26 lbs compressors, Mark 3 integrates a custom 3.9 lbs 48V micro-compressor, delivering true portability and 5,280 BTU of whisper-quiet cooling power.

"This is the most portable air conditioner we've ever seen, and is perfect for keeping the temperature down on camping trips and other outdoor adventures."

—T3, a leading technology media outlet

"In those situations where a traditional fan would only redirect hot, humid air towards a person without providing any relief, the Mark 3 allows AC aficionados to enjoy chilled air wherever they go."

—PCWorld, a trusted consumer technology publication

7 Modes Tailored for Your Outdoor Adventure

Whether you need rapid relief after a day in the sun or gentle airflow for a restful night, Mark 3 adapts to every outdoor moment. With versatile settings like Rocket, Cool, Sleep, Fan, Dry, Care, and Heating, it is built to handle heat, humidity, and changing conditions wherever your adventure takes you.

Reliable Power for Every Outdoor Moment

The Mark 3 battery supports a wide 12–60V DC input range and features a built-in 500W MPPT module for efficient solar charging. It reaches 80% charge in just 2 hours. With a 1022Wh capacity and built-in extendable cable, it also includes USB-C, USB-A, and Anderson outputs so you can charge your phones, laptops, and other mobile devices—anywhere you go.

Charging While Discharging

Connect multiple batteries to double, triple or even quadruple your battery life!

Three Mark 3 batteries are stacked to extend runtime, ensuring longer use.

Upgraded Power Supply System

It's not just an air conditioner, it's a 48V cooling system.

A Mark 3 battery is recharged by solar panels while simultaneously powering the Mark 3 portable air conditioner.

By AC 500W Adapter
Power up your 1022Wh Mark 3 battery from 0% to 80% in just 2 hours. Compatible with RV and portable power station AC adapters.

By Mark 3 Batteries
Enjoy 7 hours of sleep mode comfort. 2 batteries in series with the built-in power cable ensure all-night running.

By 500W MPPT Solar
Mark 3 battery's built-in 500W MPPT module allows charging via 12-60V solar panels, reaching 80% charge in just 2 hours.

By 12V Vehicle
You can recharge your Mark 3 Battery on the go using the cigarette socket. (Car charging cable needs to be purchased separately.)

Don't Just Take Our Word

What Our Customers Say

★★★★★
Yes it's expensive but compared to a 12K APU it's damn worth it and must have to every OTR and Regional truck driver. Batteries charge very fast while driving takes about 4 hours for both and each battery gives you at least 5 hours of cooling before it switch to the second battery, you can stack them.
@Jordan Bar

★★★★★
I used my Mark 2 on heck of a lot. It really did what I wanted it to and that was to cool my small sleeper on my 384 Peterbilt. For several years. So far the Mark 3 has potential for me. I like it so far and it gets much cooler that the Mark 2.
@Travels of ShadoWolf

★★★★★
Delighted to receive Mark 3 and 2 batteries I ordered in September. It will work well in my Hymer Aktiv Class B campervan. Packaging, unit, batteries all top-notch quality. After running it for maybe 5 minutes, I am confident it will be worth the wait. Photo shows output air temperature, running it "bare", no hoses.
@Cindy M Foster

★★★★★
I was part of the funding group for this new Zero Breeze Mark3, it just arrived. This thing rocks. It only weighs 22 lbs. Can be run off ac, solar or a clip on battery (1022w). The unit sells for $1299 which is way cheaper than a dc inverter marine AC. I think these will become very popular. I'm using it for boating, camping, garage and when working outside.
@whatta life

★★★★★
I am more than happy with my Mark3, is working like a dream. I just sold my EcoWave2 air conditioner as it was extremely cumbersome & very, very heavy to use - my ZeroBreeze Mark3 is far superior on many levels & very easy to use. Thank you for a wonderful product.
Jackie Morton

★★★★★
I have owned approx 2500 aircraft and been flying for 40+ years. With the air in the cabin similar to a car with no airflow in the Summer it can be 130 degrees until you get to altitude. So far the Mark 3 is pretty nice. I put the outlet hose between the 2 front seats so it cools the front of the aircraft well. This really is one of the best things to come along for flying in the Summer. It's portable and doesn't physically connect to the plane.
Tony Plant

As seen on

Logos of media outlets that have featured ZERO BREEZE, including TIME, Reuters, CBS News, Yahoo Finance, MarketWatch, and more.

FAQs

Yes, it is included in the Mark 3 package.

The Mark 3 measures 22" x 10" x 12" and weighs 22 lbs. Its compact size and lightweight design make it easy to carry and store.

The Mark 3 delivers a cooling capacity of 5,280 BTU, specifically engineered for targeted cooling in outdoor and off-grid environments.

The power consumption of the Mark 3 varies depending on the operating mode:

Rocket Mode: 350–500W
Cool Mode: 200–350W
Sleep Mode: 150–200W
Fan Mode: 12–17W
Dry Mode: 350–500W
Care Mode: 150–350W
Heating Mode: 200–500W

Yes, the Mark 3 has a heating mode. However, it is important to note that this function is designed as a supplementary feature, rather than a primary heating solution. Due to power limitations, the heating mode is only effective when the ambient temperature is above 50°F (10°C).

We recommend first using your primary heating system to raise the room temperature to your desired level, and then using the Mark 3's heating mode to help maintain that temperature.

As with most air conditioners, during cooling operations, the front of the unit releases cold air while the rear expels warm air.

The Mark 3 is designed for personal and small-area cooling (100–150 sq. ft.). Unlike traditional air conditioners that cool entire rooms, it focuses on spot cooling or flexible use in compact spaces—ideal for outdoor or portable setups.

The "Care Mode" uses a PI (Proportional-Integral) algorithm to quickly adjust the compressor speed, helping the outlet air temperature match your desired setting faster. In short, it provides rapid, targeted comfort by focusing on quickly reaching your preferred temperature.

Yes. The Mark 3 includes a 100V–240V AC adapter. When connected to a wall outlet, it can run continuously without a battery.

When plugged into a standard AC wall outlet (100V–240V), the Mark 3 can operate continuously, as long as it is properly maintained and in good working condition.

If running on Mark 3 battery power, the runtime depends on the selected mode and the number of batteries connected. Here's a breakdown of the expected working time:

Rocket Mode (350–500W):
With one battery (1022Wh): 2–3 hours
With two batteries (2044Wh): 4–6 hours

Cool Mode (200–350W):
With one battery (1022Wh): 3–5 hours
With two batteries (2044Wh): 6–10 hours

Sleep Mode (150–200W):
With one battery (1022Wh): 5–7 hours
With two batteries (2044Wh): 10–14 hours

Fan Mode (12–17W):
With one battery (1022Wh): 60–85 hours
With two batteries (2044Wh): 120–170 hours

Dry Mode (350–500W):
With one battery (1022Wh): 2–3 hours
With two batteries (2044Wh): 4–6 hours

Care Mode (150–350W):
With one battery (1022Wh): 3–7 hours
With two batteries (2044Wh): 6–14 hours

Heating Mode (200–500W):
With one battery (1022Wh): 2–5 hours
With two batteries (2044Wh): 4–10 hours

Yes! The Mark 3 app (currently in beta) is available for both iOS and Android:

iOS: Download from the Apple App Store.
Android: Click on the link to download via Google Drive: https://drive.google.com/file/d/1KONne4zOUUfvzEdxHNYoT0-shFkQ93fz/view?usp=sharing

Whether or not ducts are necessary depends on your environment and setup:

In open spaces: Ducts are not required, and you can use the Mark 3 to cool the area effectively without them.
In enclosed spaces (such as tents, vans, or boats): We recommend installing the rear dual ducts to enhance cooling efficiency and improve ventilation.

For targeted cooling, you can also install the front air outlet duct in either case to direct airflow more precisely to the desired area.

The battery runtime of the Mark 3 depends on the selected operating mode and how many batteries are connected. Here are the approximate runtimes:

Rocket Mode (350–500W)
One battery: 2–3 hours
Two batteries: 4–6 hours

Cool Mode (200–350W)
One battery: 3–5 hours
Two batteries: 6–10 hours

Sleep Mode (150–200W)
One battery: 5–7 hours
Two batteries: 10–14 hours

Fan Mode (12–17W)
One battery: 60–85 hours
Two batteries: 120–170 hours

Dry Mode (350–500W)
One battery: 2–3 hours
Two batteries: 4–6 hours

Care Mode (150–350W)
One battery: 3–7 hours
Two batteries: 6–14 hours

Heat Mode (200–500W)
One battery: 2–5 hours
Two batteries: 4–10 hours

You can recharge the Mark 3 battery through several methods:

Using the included 500W AC adapter (charges to 80% in about 2 hours).
Using another Mark 3 battery (via the built-in charging cable).
Using solar panels (12–60V input; solar charging cable sold separately).
Using a 12V car cigarette lighter (cable sold separately).

The charging speed depends on the power output of your charging source.

With the standard 500W AC adapter, the battery charges to approximately 80% in about 2 hours.

Yes. You can connect the Mark 3 AC unit to the battery using the built-in cable, and then plug the battery into a power source.

This setup allows you to recharge the battery while simultaneously powering the air conditioner.

No. The Mark 3 can also run on third-party power supplies.It requires up to 500W of power and can operate from:

110–240V AC,
48V DC,
12–36V DC (when using a 48V booster).

No. When using multiple batteries chained together, the next battery will automatically take over when the first one is depleted. Therefore, you can sleep soundly without needing to swap batteries manually.

The Mark 3 battery is designed for over 1,000 full charge/discharge cycles at normal temperatures. After 1,000 cycles, it typically retains around 87% of its original capacity.

The Mark 3 is covered by a warranty as outlined in the ZERO BREEZE warranty policy. For full details, please refer to the policy here: Warranty Policy.

ZERO BREEZE Mark 3 AC

Highlights