Samsung has developed a fuel cell that can charge a mobile phone in a few hours. The cell weighs 180 grams and can fully charge a drained battery in just 2 hours.
The cell uses hydrogen, methanol and air to generate 2 Watts of power. Researchers have claimed that the test units have successfully charged phones 200 times in a row.
All you need for the cell to work is a 10 cc methanol cartridge that is good for two recharges that will cost you somewhere around $1 each.
This technology will compete with the paid charging stations, which charge you around one dollar and takes four hours to charge a phone.
Samsung is also working to develop such a technology for PDAs and Laptops and the company expects to make the cells available within two to three years.