Samsung announced that it will come up with new mobile phone battery that would be powered by water.

The company expects the battery to be incorporated by 2010 which will convert water to Hydrogen gas and Oxygen when the mobile is switched on by reacting with metal inside the fuel cell. 

Samsung claims that users will get about 10 hours of battery charge using their water-cell battery, almost double the life of today’s batteries. However the only downside is that if you use your phone for about 4 days on average, you will need to change the hydrogen cartridge every five days - which could make this an expensive affair.

But the company is confident that within certain years the hydrogen cartridges need not be changed and would only require to be filled with water.