New Inspire, came with 3 batteries, 2 charging, one with blinking light

[bonedrone]

I just got my Inspire today. Plugged the three batteries into the Thor Supercharger. Two of the three look to be charging correctly. The third just has a single kind of fast flashing light furthest away from the power button. I unplugged it and put it into the charger that comes with the Inspire, same thing. Is this a defective battery?