Wat-er good idea for charging phones

Tap water

We could all soon be charging our phones, tablets even car batteries with tap water within a few years.

A Japanese company has invented a new type of rechargeable battery that can be charged by topping it up with water.

Old batteries are huge air polluters, and so development firm Fuji Pigment have produced a new device that is renewable and clean.

The new battery called the 'aluminium-air' is quicker to charge and has a bigger capacity, so it lasts longer. It can be charged with tap water or salt water.

Water supplier United Utilities admitted: “We’ve never heard of tap water being used like this before.”