Water powered batteries
Retailing for - £3.75 (August 2008)
"The patented technology utilises two electrodes consisting of specially formulated alloys, one positive, and the other negative. When immersed in water an electrochemical reaction takes place resulting in the production of electrical energy.
To maintain a constant supply of energy simply refill as the water evaporates, typically every 2 to 3 months. The H2O battery has a minimum continuous life of at least 2 years. In addition to this, the H2O battery (unlike all other conventional batteries) can be stored in its dry state indefinitely and can be left to dry out at any time during its life and its life extended indefinitely."
Environmental Benefits of Water Power
"As all the components of the H2O battery are recyclable, the benefits over traditional batteries are countless. Every year billions of conventional dry cell batteries are used, and the recycling of such waste is not only expensive but often incomplete, resulting in hazardous pollution and damage to our environment."
N.B. Water powered batteries are not interchangeable with normal batteries!