I bought the Lumia830 the charging station and the interaction between the two has not work at all. I tried it three times. The first time, everything works as usual, which is already an audible rhythmic sound setting when loading. In the other two experiments (in the evening as the first time launched, LED indicates charging, rhythmic noise), the Lumia not loaded. It was just incredibly warm and was made because the battery has completely discharged overnight. Send the charger back.
Update 04/01/2015: In the present day price of 31, it is really a joke. I've now bought a charger from Nokia. Works perfectly and costs only a few euros more ...