Charging an iPhone 6S.

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Charging an iPhone 6S.

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The most ridiculously complicated electronics, ever.

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Charging an iPhone 6S.

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Powerbank

The 2nd greatest invention after the smartphone.

(2012)

Powerbanks were not as popular and cheap as today. Hence, this DIY powerbank came to life. It features two 1000 mAh Lithium Polymer batteries, a USB charging circuit, a switch and an LED. What more do you expect?