I can get lucky and cross the street blindfolded and not be hit by a car, don't mean I am safe to do it or that I can't be hit. Without knowing the extent of defect no way to be certainJust Me. But I really think if there was going to be a Problem with that Battery that it would have Occurred by now. And Wouldn't pop up out the blue the 1st time you turn your back on them.
Would I attempt to Charge or Use it? Absolutely Figgin Not!
Would I put in in the Trash? No.
But would I put it back in its Original Packaging and wait for an RMA Number? Sure.