how to not destroy an alternator when charging LI batteries.

Huntindog wrote:

pianotuna wrote:
Hi all,

https://youtu.be/jgoIocPgOug

The video offers solutions.

This guy isn't all that bright,
When an altenator is installed on a automobile, it is driven by the crankshaft pulley which is much larger. Usually a 4 to one ratio. So even at idle, it would be turning over 2000 rpm

Victron sells several "alternator protection devices" and so, have a dog in the fight. If the alternator doesn't start smoking, you won't buy their stuff to protect yours.
They also supply very little specific information about the alternator's specs, even where it came from, had it been used before, and so on. Then they connect it to a lithum battery with the same "shrouded in mystery" BMS specs. Many people choose to believe it because they've had good luck with other Victron hardware, that's understandable, and everyone always raves about it, especially on the sailing/yachting forums. I've never used any of it, and I haven't had any major problems as a result of not spending my money on their stuff.
Honestly, does anyone know anyone that burned up their alternator charging a lithium battery bank? Or burned up their own? I don't, nor can I find any internet posts that support the notion. (cue the deluge of "I know someone..." replies)