Can a car battery still be used after four years?

1 Answers
Eli
07/29/25 11:40pm
If the test results are normal, it can continue to be used. The normal lifespan of a car battery ranges from 1 to 8 years, which largely depends on the condition of the vehicle. With a properly functioning vehicle alternator and no electrical leakage, the battery can generally last for more than 3 years. If you notice that the battery is not holding a charge or the starter is weak, and the headlights are significantly dimmer, you should remove the battery and charge it for 12-24 hours using a charger. If it still doesn’t work, and the vehicle’s mileage has exceeded 50,000 km with no alternator issues, then it’s time to consider replacing the battery. A car battery, also known as a storage battery, is a type of battery that converts chemical energy into electrical energy. The term "battery" commonly refers to a lead-acid battery, which is primarily made of lead and its oxides, with sulfuric acid solution as the electrolyte.
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