"An automotive battery is a rechargeable battery that is used to start a motor vehicle. Its main purpose is to provide electric current to the electricity-powered ...
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starting motor, which in turn starts the chemically-powered internal combustion engine that actually propels the vehicle. Once the engine is running, power for the car´s electrical systems is still supplied by the battery, with the alternator charging the battery as demands increase or decrease." - (en.wikipedia.org 03.09.2020)
