Horizon Fuel Cell Technologies, a maker of cool fuel cell gadgets, like hydrogen-powered toy cars for kids, has introduced their coolest gadget yet:  a pocket-sized portable fuel cell power plant that can charge your cell phones, MP3 players and other devices.

The MiniPAK, as it's called, comes with two refillable cartridges that each store the same amount of energy as 1,000 disposable AA batteries.  It can charge devices requiring up to 3W and has a DC output of 2.5W.  It contains an air-breathing fuel cell and a solid-state hydrogen storage unit (meaning no self-discharging of the energy).

The cartridges, called Hydrostiks, can be refilled with an included home recharging unit that uses water and electricity to generate and store the hydrogen.

The MiniPAK costs $100, not a high price to pay for grid-free charging on the go.

via Inhabitat