Wearable PC's

[StuartW]

The continuing development of fuel cells as replacements for conventional batteries, has led to some interesting announcements.Xybernaut and DCH Technology are developing a wearable PC which will run on hydrogen fuel cells, which have operating times of 12 to 24 hours.
Meanwhile Motorola together with Los Alamos National Laboratories have developed a fuel cell based on a methanol/water reservoir the size of a pen, and an energy density 10 times that of conventional batteries. (Before some joker comments - ETHANOL is the alcohol you drink, METHANOL is the alcohol that will turn you blind!!)
Motorola claim the product is only a few years away from the market place. Manhattan Scientific are also working on a methanol/water powered cell, with a claimed specific energy of 300 watt/hours per kilo of fuel.
Sounds like the conventional dry cell, and button batteries are on the way out.

[HAL9000]

I actually saw a newspaper article about 2 years ago where some guy had invented a battery cell out of vodka. The 1 ounce cell at the time had the capability to power the phone on standby for 1 month running 24/7 and had the potential to get it up to 6 months. Great idea... but I think I would go through too many batteries on the weekends

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