Poor fit, hardly abzubekommen

The battery has been appointed to replace a Bosch Cordless Screwdriver PSR 18 VE-2. After unpacking, he first made a good impression, looked high, except for the color almost like the original. Even before the store he was then placed on the screwdriver. It was noticeable that remained between the battery and the screwdriver "a little air," which in the original battery was not the case. A quick test showed then that the battery was even summoned. After a moment's doubt because of the fit, the column has been accepted and the battery should be removed for charging. However, this process should be to knock-out criterion, because the battery would and would not be solved. Only after many attempts managed to take it off. Also the 2nd and 3rd start-up designed not better, so that the battery is returned.