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What are negative battery terminals?

A negative battery terminal is the terminal on a battery that is connected to the negative pole of the battery. In most cases, the negative terminal is marked with a minus (-) sign. The negative terminal is where electrons flow out of the battery and through the circuit. When a battery is connected to a circuit, the negative terminal is connected to the load, which is the device that uses the electricity from the battery. The positive terminal of the battery is connected to the source, which is the device that provides the electricity to the battery.