Generally, a car battery's lifespan is around 2-3 years, but if used properly, it can last 4-5 years. However, some common usage mistakes and potential damage can significantly shorten the battery's lifespan, and these are issues car owners need to be aware of:
1. Add sulfuric acid if the electrolyte density is abnormal.
2. Clogged ventilation holes in non-maintenance-free batteries: The ventilation holes in non-maintenance-free batteries are used to dissipate heat and release internal pressure. If the ventilation holes are blocked, the internal pressure will rise, which may lead to the battery exploding in severe cases.
3. Incorrect charging: Batteries should be charged using a low current for a long time. If a high current is used for a long time, the electrolyte will boil due to heat, causing internal water to evaporate and thus changing the density of the electrolyte.
4. Operating under prolonged low power conditions.
5. Storage without power: If the battery is over-discharged due to the owner's negligence, the engine should be run for at least 1 hour after restarting the vehicle to charge the battery. If possible, driving the vehicle, even at idle, can also charge the battery. To improve charging efficiency, the engine speed can be increased; generally, 1200 rpm is sufficient for good charging.
Occasionally, one or two instances of battery over-discharge will not significantly impact battery life, as long as the owner ensures the battery is fully charged after resolving the issue. Prolonged operation in a discharged state will cause the most damage to the battery's lifespan. Improper charging and operation in a discharged state have the greatest impact on battery life. If battery over-discharge occurs, it is essential to ensure sufficient charging time after resolving the problem.
