I am a retired auto service technician. As a young trainee, early 1980's, I was told to wear goggles when servicing batteries. I wasn't told why, so I did not wear any protection. One morning a customer dropped off their car at the front door and a few minutes later the battery exploded with a huge BOOM! We go out there and open the hood to investigate and found plastic pieces and acid all over the engine compartment. The car was just sitting there not running!! I have seen it happen one other time after Jumper cables were attached, the dead battery exploded when the key was turned to start the car. I was the one that attached the jumper cables, I had safety glasses on and my back turned. I have always kept my back toward batteries since the first explosion. People say "What are you doing?" and I tell them my back skin grows back, but, my eyes won't! People that have not seen a battery explode do not realize the danger.
I am a retired auto service technician. As a young trainee, early 1980's, I was told to wear goggles when servicing batteries. I wasn't told why, so I did not wear any protection. One morning a customer dropped off their car at the front door and a few minutes later the battery exploded with a huge BOOM! We go out there and open the hood to investigate and found plastic pieces and acid all over the engine compartment. The car was just sitting there not running!! I have seen it happen one other time after Jumper cables were attached, the dead battery exploded when the key was turned to start the car. I was the one that attached the jumper cables, I had safety glasses on and my back turned. I have always kept my back toward batteries since the first explosion. People say "What are you doing?" and I tell them my back skin grows back, but, my eyes won't! People that have not seen a battery explode do not realize the danger.