How Long Can a Car Sit Without Being Driven Before It Won't Start?

1 Answers
SanRuby
07/30/25 6:45am
If the car has a relatively new battery, it will typically experience starting difficulties or even fail to start after being left unused for about one and a half months under normal conditions. For cars with older batteries, they may fail to start after just two weeks of continuous parking under normal circumstances. Below is the relevant content: Battery Maintenance: Maintenance-free batteries require keeping sufficient charge: If the car is used frequently, the battery usually remains fully charged; infrequent use leads to battery discharge and weak starts. Minimize complete discharge occurrences: If the power line is connected to constant power, always remember to set a cutoff voltage. Turn off other electrical devices before parking: Shut down all electrical equipment before turning off the engine, such as headlights, interior reading lights, windows, and air conditioning. Regularly inspect the engine compartment: Use the observation window on the battery to assess its condition. A green indicator signifies a good battery, while a black one suggests it may need replacement. Precautions for Long-Term Parking: Start the engine every one to two weeks and drive a short distance after starting. This allows the alternator to recharge the battery and prevents flat spots from forming on the tires. Prolonged parking without use can reduce tire lifespan, and periodically driving the car helps avoid flat spots. It is advisable not to leave the car unused for extended periods, as this is detrimental to both the battery and the vehicle.
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