I posted this about year ago, but after reading all the good
comments, I decided to do it again.
First off, I was doing something dumb. Like using a battery
that I knew had a shorted cell. Had just finished doing a SB chevy,
and needed to start it on the run in stand. Knew the battery
was bad, but, figured it would start the engine. Engine fired, then
quit--late timing. Second go, battery won't,so put the charger on.
15 minutes later, shut off the charger, disconnected the charger, and
tried the engine.
I had on safety glasses, thankfully, but when I hit the starter,
I saw a spark at the battery terminal, and heard a loud crack. My shop
is 40 by 70, and I swear there was a small piece of that battery casing in
half of it.
Other than ruined coveralls, no real damage.
My point is though, in the house, not everyone is protected. So
please be careful.
Respectfully
bj