H2Gatech 300W Fuel Stack
H2Gatech 300W Hydrogen Fuel Cell Stack is a medium-power PEM fuel cell system engineered for mobile energy solutions, off-grid operation, and backup power applications that require increased output while maintaining portability.
The system supplies steady and reliable DC power with high energy conversion efficiency, optimized hydrogen usage, and ultra-quiet performance. It is suitable for powering mobile equipment, portable power stations, field devices, and compact electrical systems operating beyond the limits of small battery packs.
Designed with a lightweight yet robust structure, active cooling design, and a separate electronic control unit, the 300W fuel cell supports extended runtime in environments where grid electricity is unavailable, battery replacement is inconvenient, or maintenance access is limited.
Component List:
Fuel cell stack (including fan)
Fuel cell controller
TPU or PTFE tubing
Intake solenoid valve
Pressure sensor
Current sensor
300W Air Cooled Hydrogen Fuel Cell PEM Fuel Cell
Fuel cells are a clean energy technology that enables hydrogen to be used as a practical power source. By directly converting chemical energy into electrical power, fuel cells operate with high efficiency and produce no harmful emissions. Hydrogen and fuel cell systems support a wide range of sustainable energy applications, including transportation, portable electronic devices, and energy supply for buildings such as hospitals, offices, and homes.
Number of Cells
This fuel cell stack is composed of 40 fuel cells.
Hydrogen Pressure
Hydrogen must be fed into the fuel cell stack at a pressure of 0.04-0.06 Mpa.
Ambient Temperature
The fuel cell stack operates best in a temperature ranging from -5~35° C.
Humidification
This fuel cell stack uses self-humidification.
FC Stack Weight
The stack (including fan and casing) weighs 1270g.
Controller Weight
The weight of the controller is 640g.
System Efficiency
At 12 volts the efficiency of the system is over 40%.
External power supply
It can be provided by H2Gatech or sourced by the customer.
Harness Hydrogen Power Simply
Fuel cells are an advanced clean-energy technology that enables hydrogen to be used efficiently as an electricity source. By converting chemical energy directly into electrical power through an electrochemical process, fuel cells operate with high efficiency and generate no toxic emissions, producing only water during operation. Hydrogen is a highly effective energy carrier. It is non-toxic, renewable, widely available, and rich in energy content. When hydrogen reacts with oxygen, water is formed, which can be converted back into hydrogen through electrolysis. This allows hydrogen to be reused, forming a sustainable energy cycle. Thanks to these advantages, hydrogen and fuel cell technologies are suitable for a wide range of clean-energy applications, including transportation systems, portable electronics, backup power solutions, and energy supply for commercial and residential buildings.
A Cleaner Way to Use Hydrogen
Fuel cells generate electricity from hydrogen through an electrochemical process, without relying on combustion. Traditional energy systems depend on burning fossil fuels, a method that is inherently inefficient and results in significant energy loss. During combustion, a large portion of the released energy is wasted as heat, noise, and mechanical vibration, while carbon emissions cannot be easily reused as fuel. Fuel cells work differently by converting hydrogen’s chemical energy directly into electrical power. This allows for higher overall efficiency, clean operation, and quiet performance, making fuel cell technology a more effective and sustainable alternative to combustion-based energy systems.
H2Gatech 300W Fuel Stack Components List:
300W Fuel cell stack (including fan)
300W Fuel cell controller
TPU or PTFE tubing
Intake solenoid valve
Pressure sensor
Current sensor
H2Gatech 300W Fuel Stack Performance
The following polarization curve is an examplary performance for this stack.The H2Gatech 300W Fuel Cell Stack uses PEM (Proton Exchange Membrane) fuel cell technology to converthydrogen and oxygen directly into electricity through an electrochemical reaction, without combustion.

Applications of H2Gatech 300W Fuel Cell Stack
Hydrogen-Powered Bicycles & Light Mobility
|The 300W fuel stack is suitable for hydrogen-assisted bicycles and light electric mobility platforms. It can supply continuous power for onboard systems, control electronics, and auxiliary loads, extending operating time beyond battery-only solutions.
Portable Power Stations
Commonly used in hydrogen-powered portable power stations, the 300W fuel stack provides clean and quiet electricity for mobile backup power, supporting charging, lighting, and small electrical equipment in outdoor or temporary environments.
Fuel Cell Stack Manufacturer
H2Gatech is a premier fuel cell stack manufacturer dedicated to delivering high-quality, safe, and reliable hydrogen power solutions. From R&D prototypes to industrial integration, we provide the core technology needed to power your green energy projects. Partner with H2Gatch for industry-leading durability and performance. Contact us today for a consultation!
| Output Performance | ||
|---|---|---|
| Parameter | Specification | Typical Value |
| Rated Power | 300 W | 326 W |
| Operating Voltage Range | 22 – 36.5 V (Rated 24 V) | 27.17 V |
| Operating Current Range | 0 – 17 A | 12 A |
| Fuel | ||
| Hydrogen Purity | ≥ 99.99% (CO < 1 ppm) | 99.99% |
| Hydrogen Pressure | 0.04 – 0.06 MPa | 0.05 MPa |
| Hydrogen Consumption | – | 4 L/min |
| Environmental Characteristics | ||
| Operating Temperature | -5 – 35 ℃ | 30 ℃ |
| Operating Humidity | 10% – 95% (No mist) | 54% |
| Storage Temperature | -10 – 70 ℃ | – |
| Noise Level | ≤ 80 dB | ≤ 80 dB |
| Physical Parameters | ||
| Stack with Fan Dimensions | 196 × 114 × 106 mm | – |
| Control Box Dimensions | 160 × 85 × 45 mm | – |
| Total Weight | – | 1910 g |
