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The 'Double E' Can Charge Devices by Simply Being Shaken

 - Jul 10, 2017
References: yankodesign
Having a backup battery that's running on empty will render it just as useless as a smartphone without power, so the 'Double E' kinetic energy power bank offers a solution to this potential problem. Designed by Zheming Zhou, the 'Double E' power bank works by incorporating an internal unit that can be shaken to create a charge that will power your phone. It's also chargeable via Micro USB, which means you can charge it through a traditional USB port and only use the kinetic charging capabilities if you find yourself without access to power outlets.

The 'Double E' kinetic energy power banks feature two USB ports and even an LED matrix display that will let you know how much percentage is left on the unit's charge.