Mobile phone charger that runs on water.
A Swedish company has invented a charger for mobile phones, cameras and GPS devices that can power-up your electronic gadgets with little more than water.
The PowerTrekk has been designed for people who 'who spend time away from the electricity grid' and do not have access to conventional power in remote locations.
The charger needs just a tablespoon of water to produce around 10 hours of phone battery life.
Water great invention: The PowerTrekk needs just a tablespoon of water to provide 10 hours of charge or a mobile phone
Easy to use: The PowerTrekk connects to phones via a USB port, and works with any USB compatible gadgets
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