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: June 26, 2018
Between the electrolyte and the lead plates, a chemical reaction is created. This produces dangerous, explosive gases that vent through the battery cover vents. Because of this, caution should be taken when you charge or jump start a low battery. The same caution should also be taken every time you are working under the hood of your vehicle. It is important to provide as good ventilation as possible in the battery, so always keep it clean.
The car battery itself may be the cause if it has corroded cable terminals, bad wiring, damaged cells or plates inside or if it is leaking electrolyte. This article refers primarily to conventional vehicles with conventional 12-volt batteries; more electrified vehicles and those higher-voltage electrical systems will vary. The charging system warning light should show for a few seconds when you start the car, but if the battery light shows while you're driving the vehicle, that light signals a problem. Among other signs that the alternator or other parts of the charging system aren't working are dim headlights or the clock losing time.