It is an impertinence and unfortunately wahscheinlich intended: After the number brush and a half years has properly done their services, they are their minds on. The manufacturer is timing, the warranty is now expired. The weak point is the pin to which the brush head is inserted, not the battery. The brush head acts as a lever and thus goes in eventually the storage of the pen broke. Time after the warranty period. Whether it's a coincidence? The previous model was externally screwed because there was not this problem. Here, sales was probably too low, limiting the life had to be (and has been found).
Too bad that the toothbrush is otherwise excellent, and I therefore feel obliged to join in this little game.
