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Brief Published: 15 Dec 2014

Juse: Solar-Charging Smartphone Case

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Juse

San Francisco start-up Juse has created a solar-charging smartphone case that allows a device to power itself by harnessing renewable energy.

The case is fitted with photovoltaic cells that convert solar power into electrical energy that is stored in the case's nano battery, ready to automatically charge the phone as needed. The company claims the ultra-slim cells are two to three times more efficient than the conventional ones used on external solar phone chargers. This means the Juse needs just two hours of sunlight for up to 75% charge, and can even work in low lighting conditions such as interiors – although it will take longer to fully charge under these circumstances.

The minimal design is intended to be as unobtrusive as possible, and is pitched as a 'passive' device – meaning a user needn't consider when or how it gets power, as this function is self-contained within the product. As featured in our Sustainable Futures Innovation Platform, this approach allows freedom for the user by providing off-grid power wherever they are.

For more on products that are powered from within or rely on renewable energy sources, see Naturally Energised and Eco Energy: Smarter Savers.

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