Casio has developed high-performance portable fuel cells - its latest R&D success in the worldwide push toward smaller, cleaner more efficient power sources to supplant the ailing battery. The cells work by converting fuel such as methanol into hydrogen, which is then reacted with oxygen via a generating cell to produce electricity. A Casio fuel cell for a laptop would be half the weight and last about four times longer than a lithium ion rechargeable battery. This can be increased to 8 times the efficiency using high-energy alcohol fuel. Being refuelable rather than re-chargeable or disposable, fuel cells will also reduce the environmental effects of our increasing reliance on go anywhere electronic devices.
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