There are few things in life as exciting and satisfying as creating something; one popular form of creation is homemade batteries. Remember the thrill you first got when you created electricity with some rubber, wires and a lemon for an elementary school science fair project? There are few things as mystifying and awe-inspiring as the creation of electricity.
Soda Can Battery
There are many ways to make a battery from household products. All you need are a few pieces of metal and a conducting source (like a solution). One of the simplest homemade batteries comes in the form of a soda can. You place the copper into the soda, and you place a strip of the aluminum can into the soda as well (you will need to rub the paint off the soda can with some sandpaper, as the paint will deter the conductive properties of the metal). This battery will produce about .75 volts, which is not much, but will prove entertaining.
Another popular and easy-to-make homemade battery is the zinc-air battery. Zinc tends to be one of the most conductive types of metal for homemade batteries and can be obtained through a hardware store, specialty shop or via the Internet. For the conductive solution, you will need a small dose of salt and a cup of water. The zinc will oxidize when placed in the salt water solution, which will create electricity. Continue reading “Homemade Batteries”