Snow is just so darn helpful!!! Thanks again for your wealth of info 
eh...guess i could try this, i have had at least one dud in every wow pack i have got so far
Yes this is a known problem and is most commonly found with Cool Cartos being used on auto batts and passthroughs. You'll need to take some 440 grit sandpaper or an Emory board /fingernail file and sand down your threads. This will not damage your threads for use with other Cartos. Simply take a small piece of sandpaper and work the battery threads back and forth a few times, wipe down the threads and try screwing on your battery.
Let me know if this didn't work? Did you ever hook-up the adapter you needed?
No, sand down the threads on the battery, it's easy, a couple of quick twists, a quick wipe, test it, and repeat if necessary. I find some 400 works good, or if your wife/girlfriend has a Emory Board for her fingernails that will also work. Glad to hear everything worked out.....4.7v...a good place to be.