On Feb 25, 8:48*am, Mike the Strike wrote:
Years ago, a lab next to the one I worked in had experimental
batteries under development. *All the high energy density ones utilize
very reactive elements, of which lithium is one. *However, nothing
would beat the sodium-sulfur battery in its capacity to "go
Vesuvius". *It was colloquially referred to as "the fire and brimstone
battery". *The lab had a sulfurous smell that reminded one of the
entrance to nether regions.

I'm going to stick with lead-acid, thanks very much!

Mike

If you think lead-acid gel-cells are safe, try a dead short on a fully
charged one. Splattering hot gelled acid is pretty nasty stuff.