Locate the battery on the left side of the engine bay.

If your battery has a cover on it, remove it and set it aside.

Before proceeding, identify the positive and negative leads coming off the battery. The negative lead is generally black and may be marked with a "-". The positive lead is often red and may be marked with a "+".

Never bridge the terminals on the battery with your hands or tools. Shorting the battery can severely injure you.

Look for corrosion on the battery terminals. Corrosion can be either white, grey, or blue and will generally be quite noticeable.