I bought this back in February for my HD19A and have used it less than 10 times. I ended up switching monoculars and no longer have the HD19A, so I don't need this battery anymore. It's in like-new condition and comes with the factory box and charger. I'll take $35 + shipping, or just $35 if you can meet me face-to-face in Austin. PM me if you're interested.