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Lemon Battery

Updated on September 26, 2012

How to Make a Lemon Battery

For all of you out there that want to generate your own electricity to save money. Well this is not the page, but I can show you how to make small volts of electricity. I am going to show you how to make a homemade lemon battery. Why is this important? Well if you have enough lemons then you can generate enough volts to power small electronics. You’ve heard of the potato clock right? Well it’s basically the same thing but with lemons.

  • What is needed:
  • Lemons
  • Copper Penny-pre 1980
  • Iron or zinc nail or a dime
  • Voltmeter
  • Copper wiring

You can try adding more and more lemons to get higher voltages. If you happen to have a small LED light than you can connect it the to wire terminals on the lemon battery and see if it lights up. This is a simple science experiment that kids all over the world use in science fairs.

Building a lemon battery

Materials Needed
Materials Needed
Insert the penny and nail(or dime)
Insert the penny and nail(or dime)
Connect to the Volt meter
Connect to the Volt meter
Adding another lemon
Adding another lemon

Steps and Process

It is fairly simple to build a lemon battery.

Step 1: Take a knife and cut two slits in he lemon.

Step 2: Insert the copper penny into one slit. Then insert the nail or dime into the other slit.

Step 3: Cut two pieces of copper wiring about 6 inches long.

Step 4: The red line on the volt meter is the positive terminal and the black line is the negative terminal. Connect the red positive to the copper penny and the black negative to the nail or dime.

Step 5: Now you should see a number on the volt meter. That is the voltage output of the lemon battery.

Step 6: To connect more lemons together to get a higher voltage is easy.

Step 7: Set up another lemon battery to connect to the first battery.

Step 8: Take one piece of the wire and place it in the lemon next to the penny, make sure the wire is touching the penny. Take the other wire and place it inside the lemon next to the nail or dime, make sure it is touching the metal.

Step 9: Now on the first lemon, take the wire that is touching the penny and connect it to the nail or dime on the other lemon.

Step 10: Now connect the wire that touches the nail or dime on the first lemon and attach it to the black terminal on the volt meter. Take the other wire on the second battery and connect it to the red terminal on the volt meter. You should now see a bigger number on the meter than before. This means that the voltage output had increased.

So that's all it takes. If you don't understand it then watch the video. And check out the links for better clarification. Now go experiment!

Video Demonstration

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