The Kickstarter site is collecting funds for serial production of the Pocket Sun portable battery. How it differs from countless devices? The presented product can replenish energy reserves due to sunlight, movement and heat. Pocket Sun includes thermoelectric, kinetic and solar generators, and its capacity is 2500 mAh. Not as much as we would like, but it is enough to extend the working time of the smartphone, smart watches, fitness bracelet or tablet at the right time. To connect mobile devices, a USB port and qi wireless technology are used. The dimensions of the product are quite compact and make up 8.9 x 8.9 x 1.8 cm. The cost of Pocket Sun on pre -order – $ 89.
Source: Kickstarter.com