Ok, I got the funny look when I took it back today, but they let me exchange it for a different one from a different manufacturer.
I did some testing when I got home and sure enough this one seems to be working. It looks like my old battery is bad. I will need to charge overnight one more time and retest before calling it bad, but I'm almost 100% sure.
Still don't get all 4 balls to float on my new battery which would indicate a 100% charge. I get 3 out of 4. Maybe I would only see 100% after coming off the charger?
New battery does seem to have made a great difference in performance though. Bike has been hauling a$$ lately!