RE: old power cans?
Actually 02/93, even tho it LOOKS like a date code, is actually the "Lot#"...the other string of letters and numbers is the date code.
An actual example of a can I have here:
03-96 (Lot#)
01NO13B (Date Code = Year 2001, Month November, Day 13, B shift at the plant)
I always save my empties cause I'm a pack rat but I doubt they'll ever really be worth anything...millions of them out there
(maybe not 'millions', but surely hundreds of thousands)