Now the problem: The first week of the battery was okay, then went off to the great reduction in capacity. After about four weeks the thing was still less than an hour, now when it comes up a half. (In German: unusable.)
The customer is contacted after extensive web registration, etc., but does not consider it necessary, within a week even respond (promised on website 48 hours).
In this sense, everyone must decide for themselves whether they want to take the risk that he after a month with the end - sits electronic waste - added pretty, small, stylish.