Make sure the positive terminal's cover is on or place a towel over it. Loosen the nut on the negative terminal with a socket wrench and lift the terminal off the battery post. Remove the cover from the positive terminal, loosen the nut, and lift the terminal off the post. Get Car Support Solve Any Problem Hi there!
Disconnecting the negative terminal first minimizes the risk of a short circuit by reducing the chance of the wrench touching both the battery terminal and the car’s body simultaneously. Disconnect the positive terminal. Follow the same process as with the negative terminal. Secure the cables.
Lift the terminal off the negative battery post. If needed, pry the terminal open with a screwdriver, or gently wiggle the connector until it loosens. Remove the cover from the positive post. Loosen the nut that holds the terminal onto the positive post by using a socket wrench.
Disconnect the negative terminal first, then the positive terminal. Set aside 10-15 minutes to disconnect the battery, another 10-20 minutes if you need to remove corrosion, and another 10-15 minutes to put it back or install a new one. Reverse the original order and reconnect the positive terminal first, then the negative terminal.
Use a wrench to loosen the nut on the positive (+) terminal. Carefully remove the positive cable from the battery terminal, again making sure that the wrench does not come into contact with any metal parts of the car. Once removed, move the positive cable to the side as well.
The positive terminal is usually marked with a plus (+) sign and may have a red cover. The negative terminal has a minus (-) sign and often has a black cover. Disconnect the negative terminal first. Use a wrench and turn counterclockwise to loosen the nut or bolt on the negative terminal and remove the cable.