20 Watt PEM Fuel Cell

20 Watt PEM Fuel Cell
Product Code: H-20
Availability: In Stock
Price: $1,467.00
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Recommended for use in small projects, the versatile H-20 PEM Fuel Cell is an air powered, air cooled and self-humidifying fuel cell. The H-20's air cooling feature renders bulky and inconvenient water cooling systems obsolete, allowing for a semi-integrated, efficient and reliable system. 

The H-Series PEM fuel cells are the most compact and the least heaviest fuel cells on the market.


  • Miniature electronic valve
  • Control electronics
  • Integrated fan and casing 
  • Low pressure protection
  • 20 watt stack with blower
PEM Fuel Cell Properties
Number of Cells 13
Rated Power 20W
Rated Performance 7.8V @ 2.6A
Purging Valve Voltage 6V
Blower Voltage 5V
Reactants Hydrogen and Air
Ambient Temperature 5 - 30 C; (41 - 86 F;)
Max Stack Temperature 55 C (131 F)
Hydrogen Pressure 0.45 - 0.55 Bar
Humidification Self-humidified
Cooling Air (integrated cooling fan)
Stack Size 75 x 47 x 70mm (3" x 1.8" x 2.8")
Hydrogen Flow Rate at Max Output 0.28 L/min
Hydrogen Purity Requirement ≥ 99.995% (dry H2)
Start up time ≤ 30s (ambient temperature)
Efficiency of System 40% at Full Load
Controller Weight 90g
Stack Weight (with Fan & Casing) 275g ± 30g