Should the positive or negative terminal be connected first when installing a car battery?

1 Answers
LePaislee
07/24/25 9:23pm
When installing a car battery, connect the positive terminal first, followed by the negative terminal. Its functions include: 1. Providing power to the starting system, ignition system, and electronic fuel injection system when starting the engine; 2. Supplying power to the car's electrical equipment when the engine is stopped or at low idle; 3. Stabilizing voltage to protect the electronic devices in the car. Methods for maintaining a car battery include: 1. Regularly cleaning the battery; 2. Reducing electrical usage when the engine is off; 3. Periodically replacing the battery; 4. Starting the car regularly. The steps for disconnecting a car battery are: 1. Confirm the battery's location; 2. Prepare the necessary tools for removal; 3. Loosen the screw on the negative terminal post; 4. Remove the wire and wrap the negative terminal securely; 5. Loosen the screw on the positive terminal post and remove the wire.
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