Why do batteries lose charge when they’re not being used?
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The reason why is because voltage is a potential. To create a voltage in a battery chemicals are used. These chemicals are constantly trying to reach 0 potential energy and only drop unless an external force is applied (by charging with voltage or magnetic field). The battery’s chemicals will slowly drop to 0 potential energy even if the battery isnt used.
When you use a battery you are using the “potential energy” stored in the battery. You aren’t putting chemicals into your device when you are putting the batteries in and the batteries have to come from somewhere.
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