9 Soda Cans Create Real 12V Electricity — Schools Taught This Before It Vanished in 1978

This forgotten DIY battery experiment was once taught in American schools — and it still works today. In this video, you’ll learn how 9 ordinary aluminum soda cans can generate real 12-volt electricity capable of powering lights, charging phones, and running small devices using simple household materials. Discover the electrochemistry behind aluminum-air batteries, why this hands-on science project disappeared from classrooms after 1978, and how you can build your own working power source at home for just a few dollars. No expensive equipment. No advanced electronics. Just real science hiding in your recycling bin. #DIYScience #FreeEnergy #BatteryHack #SurvivalTech #OffGridLiving #ScienceExperiment #HomemadeBattery #PrepperIdeas