Can you imagine a cell phone charger powered by water? It's coming.

NTT DoCoMo and Aqua Fairy have partnered together to make the world's smallest fuel cell. It has an output of only 2 watts, and uses thin film power unit technology to create hydrogen from water.

This polymer electrolyte fuel cell (or PEFC, for short) charger doesn't have the problems that earlier Methanol based chargers had, which was their large size and less power output. The PEFC charger is one-fourth the size and twice as powerful as the Methane type - which is good if you're looking for something more portable and more powerful to charge your devices' batteries.

The prototype PEFC produces 800mAh at 3.6V, which is enough power to recharge the average cell phone in the same amount of time it takes to plug it into a wall outlet. Amazing, right?

The NTT DoCoMo PEFC charger will go into production next year, but prototypes can be seen at Wireless Japan 2006.