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I've been looking into using Direct Methanol Fuel Cells for a personal project of mine. Size isn't much of a problem. There are a few companies developing some to replace laptop batteries, with longer running time and a quicker recharge. Though currently, they're bigger than most laptop batteries.
Of course, this technology is still pretty new, as far as consumer devices go, and is still quite expensive, so I don't see them as a power source for FIRST robots in the near future. Still though, it's interesting technology.
Anybody have any information on some cheap DMFCs to try out?
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