On Sun, 29 Oct 2006 13:27:48 GMT, "Roger Long"
wrote:

Satisfy my curiosity here. I've seen the aftermath of two battery
explosions so I know they happen and are serious when they do.

It's my understanding, perhaps incorrect, that most battery explosions
occur while charging. Charging releases hydrogen which can and will
explode under the right conditions - poor ventilation, spark, etc.

The risk of an idle battery exploding is just about nil, otherwise it
would be happening all the time.