More Battery for little money

the battery ran to exchange without any problems (even a matching screwdriver is mirgeliefert!), then the first shock: to connect the charging cable was flashing the red LED, which is exactly the symptom, which have been described here some negative reviewers. Following a more detailed analysis, I then found that I have not pushed the mechanical switch on the battery compartment cover until it stops. This required a little more force than I wanted to spend at the beginning, but then the switch sat stable and firm and also the problem with the flashing LED was gone.
So my advice to all buyers: before you exchange the battery, look at first how far the lever can be pushed up as far as he must in fact be pushed mounting upwards, so a uverlässiger contact arises.

EDIT: a great advantage of this switch: when you look a movie, or play a game in which you do not need the gamepad, you can pad it "off" so that no additional battery is consumed. So the battery life is expected to be drastically increased.