Procedures on How to Make a Lemon Battery

By Susan Deily-Swearingen
Perhpas hard to believe, but lemons are conduits for capturing and transmitting electrical charges.
lemon image by Henryk Olszewski from

Electricity and the various forms in which it is ever present is something that seems to capture the imagination of young and old alike. Experiments that demonstrate the energy present in surprising and even sometimes banal containers such as vegetables and fruit can catch a person off guard or inspire him to greater quests for understanding the invisible forces that surround him every day. Making a lemon battery could be just such a transformational experiment.

Setting up the Experiment

Set the lemon on a flat, level surface. Insert the galvanized nail through the lemon peel and into the center of the lemon making sure that the point does not exit through the other side.

At the opposite end of the lemon, using the paring knife make a small slit in the lemon peel. Insert the penny into this slit and continue to push until only about a quarter of the penny remains above the peel.

In order to see the amount of voltage created by the lemon battery, a voltage meter is required. Attach the red wire clamp to the penny and the black wire clamp to the nail in order to see the lemon battery at work.

About the Author

Susan Deily-Swearingen has been writing since 2005. She blogs at The Huffington Post and has contributed to "The Pensacola News Journal," "The Newburyport Daily News" and "The Town Common." Deily-Swearingen holds a Master of Arts in academic theater from Brown University.