So they are at least 3 years old from date of purchase, and could have been sitting on a shelf for a year or so before that.
Do they have any charge on them? They may be totally dead, or with a voltage below 2.5 volts.
In any case, I'd put a PM in to Mooch to see what he says if I were you.
Thanks for the feedback.
This is why I wanted to know since I just found them when I was cleaning out a closet. They were in a cool dark place for 3 years since my date of purchase.
Back in the day, I was using this battery type in a vamo. I hate that I wasted this money but I'll just pitch for safety's sake.
Better safe than sorry.