explain about battery?
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A battery is a device consisting of one or more electrochemical cells with external connections provided to power electrical devices such as flashlights, mobile phones, and electric cars. When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode.
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a battery is the device consisting of one or more electrochemical or cell with external connection provided to power electrical devices such as flashlight mobile phones and electrical cars
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