Potatoes are nature’s tastiest battery.Potato juice contains many water soluble chemicals that may cause a chemical reaction with one or both of our electrodes. So we may get some electricity from that.
So here is how to make a Potato Battery and have it light an LED light.Use of Copper and Zinc electrodes and Sulfuric acid as electrolyte is a proven method for this process.
LEDs, or light-emitting diodes, need tiny amounts of energy to light up. To prove the point, you can even get one lit with just a few potatoes.
At around one-tenth the cost of a typical AA battery, a potato could supply power for cell phone and other personal electronics in poor, underdeveloped and remote regions without access to a power grid.