Beechat Crank is a human-powered, open-hardware, fully-waterproof, electricity generator. The project was born out of the need to power electronics in all off-grid scenarios. We needed a way to power our devices in all weather conditions, and making a human-powered generator meant that problem could be solved. When we looked for a solution, we didn't find what we were looking for, so we decided to make it, and make it open source!

Features

High power (3A) USB-C IPX8 output

18650 3600 mAh battery (LG M36)

Charging time of 4 hrs 24 min. to full charge with 10% efficiency loss at 4.5 Watts.

Overcharge protection

Parts

Beechat Crank is composed of the main device, which we call the Heart. It contains the battery, the generator and all the electronics (the handle is detachable) :