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| Voltage is produced by a chemical reaction. Inside a battery there are positive and negative lead plates that sit in a liquid called electrolyte solution. Electrolyte solution is a mixture of water and sulfuric acid. |
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| When this solution interacts with the lead plates, there's a chemical reaction. This chemical reaction creates pressure that we call "voltage." |
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| The pressure (voltage) pushes the current out of the battery's negative terminal through the "load", the equipment drawing the power. The current returns through the positive terminal. |
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