EUDAX Fruit Battery Science Experiment Kit – 4 Sets for DIY School Projects and Home Teaching

The EUDAX Fruit Battery Science Experiment Kit turns common fruits, vegetables, and drinks into a working power source for an electronic clock and LED lights. Designed for students and teachers, this hands-on kit includes copper and zinc sheets, wires, an RGB LED, and more to explore basic electrochemistry. Ideal for middle school science projects, classroom demonstrations, or home learning.

What components are included?

• 4 copper sheets
• 4 zinc sheets
• 1 electronic clock
• 2 RGB LEDs
• 2 red LEDs
• 4 wires
• 2 wires with clips

How does a fruit battery work?

Inserting a copper sheet and a zinc sheet into a fruit or liquid creates a simple battery through a chemical reaction. The kit's wires connect these electrodes to the electronic clock or LEDs, completing the circuit and producing power. The exact voltage depends on the material used—for example, a lemon may produce a different output than a potato. The kit does not specify voltage values, but the provided clock and LEDs are designed to operate with typical fruit battery outputs.

Which fruits or liquids work best?

Based on the included instructions, juicy fruits like tomatoes are recommended as a first choice. For citrus fruits such as lemons or oranges, insert the copper and zinc sheets into the same petal section of the fruit to avoid the membrane that can block electron flow. Push the sheets in as far as possible for better contact. You can also use potatoes, apples, pears, pineapples, or even cola and salt solutions.

Who can use this kit?

This science kit is intended for individuals age 14 and older. Experiments should be conducted under the supervision of a teacher or parent when used by younger students (under 14). The kit is commonly used in middle school home education and classroom teaching demonstrations.

Tips for a successful experiment

• Read the instructions carefully before assembling to avoid damaging the electronic clock or preventing LEDs from lighting.
• Pay attention to the positive and negative polarity of the LEDs.
• The LED lighting effect is more visible in dim environments.
• After use, rinse all metal sheets and wires with water, let them dry completely, and store them in a sealed container for reuse.

Quick specifications

Frequently asked questions

Can the kit power anything besides the clock and LEDs?

The kit is designed specifically for the included electronic clock and LEDs. Using it with other devices is not recommended and may not work or could damage the components.

How do I clean the metal sheets after use?

Rinse the copper and zinc sheets with water, dry them completely, and store them in a sealed container to prevent oxidation before the next use.

What if the LED doesn't light up?

Check that the LED is connected with the correct polarity (positive to copper, negative to zinc). Also ensure the fruit or solution is juicy enough and that the metal sheets are fully inserted and not touching each other directly.