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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.
What that battery is made of, how it works, and how to keep it working well. That phone in your pocket is a modern miracle. Ditto the laptop on your desk, the tablet in your backpack, maybe even the watch on your wrist. And regardless of what each is capable of, they all have one cornerstone component to thank, one that you probably ought to know how to take care of: A battery.