Should You Connect the Positive or Negative Terminal First When Jump-Starting a Car?
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When jump-starting a car, you should first connect the positive terminals of both batteries. Below is additional information on jump-starting: 1. Specific Procedure: First, connect the positive terminals of both batteries, then connect the negative terminals. After the engine starts, disconnect the negative terminal first, followed by the positive terminal. 2. Reason for Connecting the Positive Terminal First: If you connect the negative terminal first and then the positive terminal, connecting the negative terminal will not cause any issues. Similarly, connecting the positive terminal to the first car will not pose a problem. However, when connecting the positive terminal to the second car, if the battery clamp accidentally touches the car body, it can cause a short circuit in the first car. This short circuit may damage various electronic control modules in the car, potentially rendering the battery useless and posing significant danger.