Wireless LANs enable us to go mobile with laptops and PDAs, but that means we must rely on batteries for power. Of course, we all know about the battery issues when traveling in an airplane, waiting for a connection at an airport, or performing a RF site survey. We're lucky if our laptop lasts for over an hour. Take a look at the new methanol fuel cells that enable operation of a laptop for approximately eight hours. This could be the answer to the battery longevity issue.

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