OK, Maybe this'll help. Maybe not.
I meant 1 Ohm, not 0.01 Ohm. 1000 Amps would be nifty, but impractical.
Spark-free, safe & effective uses the 120A main breaker to bring the load online. We wired everything (including voltmeter leads) to a PowerPole battery connector for simplicity. I am using a 1 Ohm, 125 Watt resistor I 'happened to have'.
Alan, of course you're correct. if 10 feet of #10 had 1 Ohm, my house would've burned down years ago. And none of the power outlets would deliver more than, say, 20 or 40 volts AC. I just wrote what came to mind, and obviously
I was off by at least 2 orders of magnitude.
And, since 1000 feet of #10 isn't usually just hanging around most shops...I'll just suggest finding a 1 Ohm resistor somehow.
Ether, you asked where did those numbers come from? Empirical results over the years, specific to FRC batteries. These are based on recommendations from the
Battery Council International (BCI), but they're dealing with automotive batteries being tested at somewhat higher rates and so their data doesn't directly apply here.
Lastly, a comment on the glass mats used in "Absorbed Glass Mat" technology batteries: Think of compressed fiberglass insulation, that's what the mats look, feel and taste like.