Different solar-powered chargers have invaded the market, claiming to offer this and that advantage over others. Berlin-based Changers thinks beyond the physical product, and offers a marketplace platform for CO2-trading that encourages you to earn CO2 credits and redeem them for sustainable products and services.
Source: ippinka.com
Source: ippinka.com
Source: ippinka.com
Source: ippinka.com
Source: ippinka.com
Source: ippinka.com