Mobile Phone Running low on Battery? Charge up with Water
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Now Swedish group myFC says its water-powered charger could be the fix anywhere while battery giant Duracell is championing a push for cars and even stadiums to be built with energy "mats" that would power up phones.
A Californian firm, meanwhile, has launched a phone that it claims can remain charged for up to 15 years, making it the perfect spare in emergencies or disasters.
"The difference between the energy on a phone and the energy we consume is increasing. We need to charge more often but...