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Should the battery negative terminal be disconnected if the car is not driven for a long time?

1 Answers
SanNora
09/05/25 3:33am

It is necessary to disconnect the battery negative terminal if the car is not driven for a long time. When parking, all electrical appliances in the car must be turned off in advance, such as lights, audio system, air conditioning, etc., especially small lights and turn signals. Leaving lights on for a long time can easily cause the battery to drain. Cars should not be left unused for extended periods. Even if not in use, the engine should be started periodically to charge the battery, ensuring it remains fully charged. Generally, disconnecting the battery negative terminal allows the car to sit for one to two months without issues. Long-term parking not only affects the car battery but also has certain impacts on other components, such as tire deformation leading to premature tire failure, oxidation and deterioration of engine oil, and paint peeling.

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