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When connecting your battery, connect the positive (red) first and the negative (black) second. When removing the battery, disconnect the negative (black) first and the positive (red) second. Been doing this for nearly 30 years. ALWAYS connect the positive post first.
Lead battery terminals are easiest for the average person to attach a battery cable to, and can often be installed using just basic tools. If you require multiple cable feeds or want to dress up your electrical system, a multi-port battery terminal may be just what you are looking for.