How to Make a Lemon Battery

This how to make a lemon battery tutorial is perfect for a quick science fair project {or for a super fun home science experiment}.  I didn’t even realize you could  make a battery out of a lemon!

Kids Activities Blog loves this project for making a fruit battery  because it is a great way to teach science for kids. Plus, it is one of our many fun science experiments for kids!

Science for Kids: Make a Lemon Battery {Science Fair Ideas!} Citrus fruit battery!

Lemon Battery

When your kiddo comes home with news that it is science fair time at school a quick, easy, and educational option is the lemon battery.  Recently, our two older kids, ages 7 and 9, presented ‘Lemon Power’ to their classmates and they were all awe struck.

Who wouldn’t be fascinated by using a lemon as a battery?

The process is simple and fun for the entire family.

Kids Science Fair Project: Make a Lemon Battery {Science for Kids}

Supplies You Need to Make a Lemon Battery 

What You’ll Need:

  •  4 lemons
  • 4 galvanized nails
  • 4 pieces of copper
  • 5 alligator clip wires
  • A small light to power up

Great science fair project: Make a Lemon Battery {Lemon Power!} We lit up a light with the batteries we made of lemons.

Lemon Battery Experiment

What To Do:

1. Roll and squeeze the lemons to release the juice and pulp inside.

2. Insert one galvanized nail and one piece of copper  into each lemon.

3. Connect the ends of one wire to a galvanized nail in one lemon and then to a piece of copper in another lemon.  Do this with each of your four lemons until you have them all connected. When you are finished you should have one nail and one piece of copper unattached.

4. Connect the unattached piece of copper (positive) and the unattached nail (negative) to the positive and negative connections of your light. The lemon will act as the battery.

5. Turn on your light and voila you have powered up using lemon power.

This is the lemon batteries we made from citrus fruit

Fruit Battery

Once the light turns on and your littles realize that it is being powered by the lemon battery they created, have your camera ready because the smile on their face will be priceless.

This experiment offers great insight into the the complexity of a battery by breaking it down in simple terms. It also provides an awesome hands-on, visual representation of how it all works. By using a few items you already have in your home, constructing a lemon battery is an inexpensive way to see how electricity works!

The end result is not only a greater understanding but also a greater appreciation for the lemon whose uses far exceed being used to simply make lemonade.

More Kids Activities

The annual science fair is a great way for kids to learn about the world around them.  We hope this idea for how to make a lemon battery helps your child understand lemon power through an easy, hands on demonstration.

We have other great fair ideas though that you might like! You make love this “What Is Static Electricity” project. Not “electrifying” enough? Then take a look at how a magnet can actually attract a dollar bill! It’s pretty cool. You may also like this bridge building activity for kids as well. If none of these science experiments are what you are looking for then check out this list of fun science activities for kids.


  1. I am not to sure about just the children enjoying this activity, But i think the adults would love to have a go too!!

  2. At this moment I am ready to do my breakfast, when having my
    breakfast coming again to read other news.

  3. This looks awesome!! Where did you find the alligator clip wires? Thanks!

  4. This is a great idea! Here at Queens Hotel we wish you and your readers a splendid summer ahead. Why not join us for a warm relaxing welcome, with great attractions and amusements close by for all the family to enjoy?

Leave a Reply

Your email address will not be published. Required fields are marked *