Horizon’s MiniPak is available for $100. It’s the first personal, portable fuel cell on the market for those in the US. Think of it as a mini power plant that will charge your gadgets. Each cartridge can hold a charge equal to a thousand AA batteries.
So you get a lot for your money, since the cost of AA batteries adds up. It comes with a bunch of connectors that will work with most common devices, and it all fits in the palm of your hand.