Powerful Homemade Supercapacitor Crank Generator LED Spotlight!

Building a Generator

CRANK GENERATOR EXPOSE WHAT INSIDE? GANITO PALA ANG LOOB NG GENERATOR NIYA 😱

Making a Lantern Full of Fireflies

Survival 30W Hand Crank Generator(Phones/Tablets & More)

Build your own Home Assistant air quality monitor

Homemade Sensitive Rechargeable Geiger Counter ~ ALPHA/BETA/GAMMA

Garmin Iridium Handheld Marine GPS Communicator Battery Rip Off Averted!

How 3 Phase Power works: why 3 phases?

1530 - The Hand Crank Generator - a BIG Improvement

I make a Water Turbine

DIY- Make Your Own Hand Crank Generator

Making a "Free Energy" Hand Crank Generator

How to Turn an LED On

Homemade GENERATOR GEARBOX | power almost any usb device.

DIY Hand Crank Capacitor BoostBox Starts V6 - Hand Crank BoostPack

Making My Own Power! Building a Hand Crank Generator

Make Your Own Generator - Homemade Alternator

Flywheel Battery

A Generator built from a Stepper Motor and Supercapacitors

DIY HAND CRANK ELECTRIC GENERATOR | SUPERCAPACITOR POWER BANK | EMERGENCY DYNAMO DC12V SYSTEM