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How to Make a Homemade Battery. Four Methods: Making a Soda-powered Battery Making a Saltwater-powered Battery Making 14-cell Water-powered Battery Making a Hand-powered Battery Community Q&A. To make your own battery at home, all you need is two different types of metal, some lead wires, and a conductive material. Many household items can be used as the conductive material into which you place your metals â for example, saltwater, a lemon, or even dirt.
Even though electromagnets are used in all kinds of complex technology, they are pretty easy to make. In fact, you can make one yourself using some common household supplies that you may already have! How to Make an Electromagnet. To make an electromagnet, you just need two things: a battery and some wire. Connect both ends of the wire to the battery and you will create a magnetic field just like Oersted did. You can verify that you have made an electromagnet by using a magnetic compass needle, or by placing some iron filings around the wire.