Underwriters Laboratories
Hand Held or Transportable Fuel Cell Power Units
UL Subject 2265


Identification

 

Scope

 

 

Status

 


Identification

Outline of Investigation UL Subject 2265 A
Micro Fuel Cell Power Systems Using Direct Methanol Fuel Cell Technology
   

Scope

 

1. These requirements cover micro fuel cell power systems and associated disposable fuel cartridges that are wearable or easily hand carried, using direct methanol fuel cell technology. These requirements apply to power systems that provide dc outputs rated 60 Vdc or less and 240 VA or less. As such, the internal and external circuitry are considered secondary circuits that are "SELV."

2. The fuel cell power systems covered by these requirements are for use in unclassified (ordinary) locations in ambient temperatures that do not exceed 50C (140F). The fuel cartridges are to be installed and replaced by the user.

3. These requirements cover fuel cell power systems that are electrical power sources that include integrated electrical connection means, integrated wiring material leads with or without electrical connectors, or a combination of these arrangements for single or multiple electrical loads. Additional electrical connection means may be provided to affect information exchange with the end-use product as designed.

4. Federal regulatory requirements pertaining to the shipment of fuel cartridges is outside the scope of this Outline of Investigation.

5. This Outline of Investigation establishes requirements for disposable fuel cartridges limited in pressure to the vapor pressure of the methanol fuel.

6. Disposable cartridges with a fuel capacity greater than 1000 mL and refillable cartridges are excluded from this Outline of Investigation.

7. The technologies covered by these requirements include direct methanol fuel cell stacks and fuels identified as methanol, or methanol and water mixtures with or without additives.

 

Status

Published in 2004. A second edition in 2018. Available at www.ul.com


Identification

Outline of Investigation UL Subject 2265 C
Hand-Held or Hand-Transportable Alkaline (Direct Borohydride) Fuel Cell Power Units And Borohydride Fuel Cartridges For Use With Consumer Electronics or Information Technology Equipment
  

Scope

Covers hand-held or hand-transportable fuel cells that provide dc outputs rated <60 Vdc and <240 VA and use un-refillable borohydride alkaline fuel. The fuel is either sodium or potassium borohydride compound or a mixture of these compounds.

Status

Published in 2006. Available at www.ul.com