Hi Abe. Yes, it was faulty charging unit. My 1st charger gave up the ghost and was actually smelling of burnt plastic, so not a good sign.
I took it back to the model store and they swapped it for another.
Incidentally, the new charger is working fine, but it doesnt always turn all 3 LEDs to green. Sometimes one LED is still red even after several hours, but the battery will perform fine.
I am looking to get a better charger when funds will allow as the wall charger takes about 3 hours. Its not a major problem, but you really need a couple of spare battery packs.
One thing I would recommend is to beef up your shell as they can break when the car flips. I have used a load of PVC tape in strategic points, but the best method is Shoo-Glu and dry wall tape.