ORIGINAL: RC-FIEND
William you have proven me to be wrong , I had the meter set on volts instead of ohms. Across the glow plug only, I am reading .5 which in the real world is a dead short.
0.5 Ohm is not a "dead short"... not in my world, and not in yours.
You take a freshly charged 2400 mAh nicad cell and hold a piece of nice thick copper wire aross the poles (use some really heavy wire for it to work best)... see what happens with a "dead short"... (you might want to consider some gloves though)
After holding on the wire for about 1 minute, tell me what happens to the wire, and the cell.
Now take an identical cell and hook it up to a glow plug... see how long it lasts.
After that, you decide what a "dead short" is.