I have been trying to purchase some working KGO batteries for a few weeks - I got 2 from Hoosier, one would charge but wouldn't fire, the other auto-shuts off after a drag of more than 3-4 seconds. I bought one off of Virgin Vapor and it works great, so I ordered another one. Just came in the mail today. I charged it as soon as I opened it, seems to charge fine (and the blue activation light comes on when connected to the charger) but once taken off the charger, the button is unresponsive when I press it (even if I mash it for 30 seconds to ensure that it didn't shut off accidentally). Is there any way to salvage these batteries or are they just duds?