I have the equipment returned 2 hours later. the reason is quite simple. In the images shown by Amazon, you can not see, which is located under the battery an ugly bäule that the netbook back up presents. it is not horizontally as indicated. Ums make understandable the battery does not run flush with the bottom of the notebook. At the back there is a deliberate increase in order to facilitate the review likely. This increase is not adjustable but rather represents the battery casing.