What is an electric car battery?
Most of the electric cars are lead-acid batteries, because lead-acid batteries are cheap and cost-effective. In 1860, France's prandtay invented batteries using lead as electrodes. The unique feature of the battery is that when the battery is used for a period of time, the voltage drops, it can be connected to a reverse current to make the battery voltage rise. Because the battery can be recharged and can be used repeatedly, it is called "lead-acid battery".
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