if I got a nimh pack in that condition I would consider it junk. You may have gotten it to take a charge and work, but for how long will it work? It's lifespan has been seriously shortened by it being discharged that far for any length of time. The longer it sat like that, the more life or "cycles" it lost. Good luck.
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It's "Dr. _paralyzed_" actually. Not like with a PhD, but Doctor like in Dr. Pepper.