Defective. They should replace with no problem. Please don't let this discourage you from the 901. It really is a powerhouse and is very popular. Sorry you had to deal with this!
it really is annoying getting a defective product and having to send it all the way across europe for a replacement.. what is even worse is that i bought 3 starter packs which cost quite an amount. (2 as christmas presents that i have given to family members in order for them to give as presents to other people). I sure hope they dont have the same trouble after all the amount of convincing i gave them to try out these things.
Today i am charging the other battery that came with the pack. With some luck it will work fine once i try it out and it will just be a battery problem. This time around the red light actually lit up on the charger opposed to the other battery just staying green but lighting up brighter. We will have to wait and see.