Are these aluminum /dirty aluminum or other does boardsort buy these and the pay rate if you do?

If they're as big as they appear to be first and foremost make sure they're empty of charge and then tape the terminals. Larger ones hold deadly amperage. And the bigger they are the more likely they are to self-charge.
They tend to go al#3 ("old" or "shred") for smaller ones, al#2 ("dirty") for larger ones.
Boardsort doesn't buy them.

If you know what your doing (I'm not responsible, nor is anyone else but you) you can pull the plugs entirely. They're usually nickel (if magnetic) or bell silver (non-magnetic) 82silver/16copper/2nickel

Lol, I hear you. Guess I need more info to completely understand.
I do understand danger....ouch :( will Robinson

They're aluminium breakage.