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How long should I run the engine to prevent the car battery from dying?

1 Answers

OBriella

07/25/25 5:09am

To prevent the car battery from dying, you should charge the engine in time. Here is some relevant information about charging the engine to avoid battery depletion: Determining when the engine is fully charged: When the car battery is dead, you need to use the car's alternator to fully charge the battery. The car engine must maintain a speed of at least 2000 RPM, which is equivalent to driving continuously for at least 4 hours. If you only idle for 10 minutes, it can charge the battery to about 6% of its capacity. This means that idling for 10 minutes after the car has been parked for a week can ensure sufficient battery charge. The role of the car battery: The car battery is a relatively vulnerable component. Its performance deteriorates with each charge and discharge cycle. Under normal circumstances, with proper usage habits, a battery can last 3-4 years, and its lifespan may even be extended. If the car is not used for a long time, it is recommended to disconnect the negative terminal of the battery. This prevents the battery from discharging due to the activation of its protection function, avoiding battery depletion. Prolonged depletion can cause the battery to fail completely.

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