When changing a car battery, why do you disconnect the negative first and then the positive, and vice versa when putting a new battery in? What will happen if you do it the opposite way?

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When changing a car battery, why do you disconnect the negative first and then the positive, and vice versa when putting a new battery in? What will happen if you do it the opposite way?

In: Engineering

5 Answers

Anonymous 0 Comments

The reason I was told to do it that way was due to the off gassing of lead acid batteries which have a low flash point meaning all those sparks you would get otherwise could ignite the fumes

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