The latest hydrogen-powered mobile charger in the market is the MiniPak from the company Horizon. It is the cheapest around and comes in handy when the sun is not shining. Solar-powered chargers can be functional only when the sun is up.
The MiniPak, first demonstrated at CES 2010, was designed for charging portable electronic devices on the go. This neat looking gadget uses fuel cell technology and comes together with two refillable cartridges called HydroStik. The whole set is priced at a dandy $100 for those busy bodies who are always on the move.
The MiniPak fuel charger has a USB port in which to connect your smartphone or other devices that need to be recharged. Each of the two HydroStik fuel cells is a 'solid-state' hydrogen storage unit in which one of them has the juice equivalent to about 1000 AA batteries. Also, each of the fuel cells can store power up to 15 W. Nowadays, a smartphone or an mp3 player only needs less than 5W electricity to be fully charged.
Horizon has another product which complements the MiniPak, the HydroFill. With the HydroFill you don't have to buy another fuel cell after your HydroStik is depleted. The small scale refilling station can recharge the HydroStik just by putting water and plugging it in your wall socket. It will create hydrogen as fuel. It cost $500.
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