Do I Connect Positive Or Negative First On Car Battery. Theres considerable controversy over whether its best to hook up the master-shutoff kill switch to the batterys positive or negative side. Which car battery terminal to connect first.
You can disconnect the positive terminal of a car battery first as long as your tools do. There will be no spark because the ground is open. That way any spark is far away from the battery.
Before loosening the positive.
Connect the red cable to the positive terminal and the black cable to the negative. Positive first then negative. Theres considerable controversy over whether its best to hook up the master-shutoff kill switch to the batterys positive or negative side. Getting to our question Always while connecting the cables to a car battery connect the positive terminal first then the negative and the ground.
