Always remember to remove the negative terminal first before the positive terminal. This will prevent shorting to the ground and possibly causing shock or a fire.

Carefully use a rag to lift up the terminal off of the battery node.

Be cautious when handling battery corrosion, as it can irritate the skin and is harmful if it comes in contact with your eyes.

Place the terminal on a rag or towel and make sure it doesn't come in contact with the battery node.