[Elecraft] Battery vs Ultracapacitor

[Ron D'Eau Claire]

Wayne, N6KR wrote:

Meanwhile (next 5 years), I'll put 
my money on miniature fuel cells. They're already available for some 
applications, such as mobile of recharging cell phone batteries. There 
are fuel-cell-powered bicycles under development, too.

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About a year or so ago one of Asian notebook computer companies (Toshiba
perhaps?) "leaked" the imminent release of a fuel-cell powered laptop
computer. Supposed to run five or six hours on a fuel supply and easily
recharged. 

Dunno what system they were using, but I wondered how successful one would
be trying to get some sort of pressurized fuel canister onto an airplane in
carry-on luggage. Maybe that's why we haven't seen it yet...

Ron AC7AC