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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.
The battery itself is usually housed in an aluminium casing. A wide range of elements and compounds are used in the electronics of a phone. The chip, the processor of the phone, is made from pure silicon, which is then exposed to oxygen and heat in order to produce a film of silicon dioxide on its surface.