It doesn't take much of a spark to cause a battery to explode. Years ago I
was a student in a class on auto electronics. The instructor was
demonstrating an electrical concept using a battery for power. A small spark,
created
when he disconnected a component caused the battery to explode, showering the
class with acid and battery shards. Fortunately, nobody was hurt. However,
my down jacket later developed an interesting pattern of holes. I also
remember when, as a lad at the local foreign car garage, I used to use a
device
that measured current in battery cells by bridging a tool, made for the
purpose, across the exposed lead connectors on the top of the batteries of the
day.
I generated lots sparks as I wiggled the tool for the best possible
connection. Why I still have a face is beyond me....
Bill Wilkman
USA
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