Estream is a new portable hydropower device that could convert running water into electricity that could be used to power smartphones and other USB devices.
Developed by South Korean startup Enomad (Energy Nomad), Estream is about the size of a water bottle and weighs at least 2 lbs. The portable generator features turbine blades, which are folded for easy storage and transport. Once dipped into running water, the turbine rotates and generates electricity, which will be stored in Estream’s built-in 6,400mAh lithium-ion battery that takes about 4.5 hours to charge, Digital Trends reports.
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