I lost my original question. I have a night owl optics NODS 3 monocular. I stored it for about two years in a cool dark closet. The two AA batteries were removed to avoid any damage. I just took it back out, put into new batteries, and nothing happened. No LEDs light up. Nothing is visible through the eyepiece. Can you please tell me if there are any other batteries that I am missing, or am I supposed to do something to it for it to work again?