How to Turn Off a Car's Power Supply?

1 Answers
Nate
07/30/25 6:32am
Use a wrench to remove the positive and negative battery terminals to cut off the power supply. Below are relevant details about car batteries: 1. Lifespan: The average lifespan of a car battery is around two years; 2. Maintenance: Proper maintenance can extend its lifespan, with well-maintained batteries lasting up to four years. Signs of a depleted car battery: Difficulty starting the car after being parked for two days, noticeable sluggishness when driving with the air conditioning on, etc. 3. Precautions for car batteries: Modern car batteries come with protective functions that reserve the minimum power required for ignition. If you turn the key without starting the engine and use accessories like the radio or lights, the battery can last for approximately over an hour.
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