One of the most well-known experiments for creating a homemade battery is the lemon battery. The acidic nature of the lemon provides an ample environment for conducting electricity. Here’s what you’ll need: – A lemon – A copper coin or strip – A zinc galvanized nail – Two short pieces of wire – A small LED light or voltmeter to test the voltage

These homemade batteries will use a chemical reaction to create an electric current. You can build this current through basic materials lying in your own home along with an electrolytic solution. You can create earth batteries, coin batteries, and salt batteries using the basic principles of electricity through these DIY tutorials.

Experiment with different materials to make a working battery. Build and test a battery at home! Make sure pennies are prior to 1982. Put pennies in a “ketchup” bath. Make sure both sides are fully covered in ketchup. Let the pennies sit in the ketchup for about 5 minutes. Wipe down and rinse pennies to get all the ketchup off.

Gather your materials. For this battery, you will need one unopened can of soda (any type will do), one plastic cup (6 to 8 ounces), and one 3/4-inch-wide strip of copper that's slightly longer than the height of the cup. In addition, you'll need a pair of scissors, a voltage meter, and two electrical lead wires with alligator clips at both ends.