Zero Breeze · Mark 3
A proper AC that fits in your boot.
The Mark 3 is a real compressor-based air conditioner — not a fan or an evaporative cooler. It uses a custom-engineered 48V micro compressor (just 1.8 kg on its own) and dual-hose venting for genuine cooling in vans, tents and cabins.
5,280
BTU cool
10 kg
unit
46 dB
quiet
Available configurations
Mark 3 Basic
EntryAC unit only — for mains use
Mark 3 + 1 Battery
PopularTake it off-grid for a few hours
Mark 3 + 2 Batteries
Best valueFull night in a rooftop tent
Mark 3 + 3 Batteries
ExtendedMulti-day off-grid or larger spaces
Venting kits
- No venting kit
- Mercedes Sprinter window kit (2007–2024+)
- Ram ProMaster window kit (2013+)
- Ford Transit window kit (2015–2024)
- DIY universal window kit with cutting tool
- Tent venting kit
Ireland pricing available on request. Delivered from our Irish distribution point.
AC unit
Full specifications
- Cooling capacity
- 1550 W / 5,280 BTU
- Heating capacity
- 1700 W / 5,800 BTU
- Working modes
- Rocket / Cool / Sleep / Fan / Dry / Care / Heat
- Cooling rated input
- 500 W
- Wind speed
- 4 levels
- Working voltage
- 48V DC (range 38–58.5V)
- AC adapter input
- 100–240V (50/60 Hz)
- Cooling thermostat
- 16°C – 28°C
- Heating thermostat
- 18°C – 31°C
- Dehumidifying
- 15% – 90% RH
- Ambient operation
- 10°C – 40°C
- Refrigerant
- R290 (eco-friendly)
- Unit size
- 56 × 26 × 31 cm
- Weight
- 10 kg
- Moisture protection
- IPX4
- Ventilation
- Dual hose
Battery
Zero Breeze battery pack
- Battery type
- 21700 Li-Ion Polymer
- Capacity
- 1022 Wh
- Net weight
- 6.4 kg
- Size
- 51 × 21 × 11 cm
- DC charge input
- 12–60 V
- Charge 0–80%
- ~2 hours (official adapter)
- Output power (max)
- 550 W
- Output voltage
- 42–58.8 V
- USB-C
- PD 100 W max
- USB-A
- QC 3.0 18 W
- 12V Anderson
- 12V / 10A (120 W)
- Chainable
- 2, 3, 4+ batteries
- Charge while discharging
- Yes
- Charging sources
- Wall adapter · Solar · Cigarette port
In the box
Everything you need to run it.
- ZERO BREEZE Mark 3 AC × 1
- 50V DC Power Adapter × 1
- 2.4G Wireless Remote × 1
- Drainage Pipe × 1
- Front Outlet Duct (Ø11 cm)
- Front/Rear Inlet Duct (Ø13 cm)
- Rear Outlet Duct (Ø15 cm)
- Front & Rear Adapters × 4
- User Manual