The handle has arrived as usual with me quickly and was immediately attached to the camera. Here I have to say that not 100% tight against the handle and the combination seemed a bit rickety. In a Nikon forum I then read that (see photos) which was to fix with 2 strips of duct tape on contact column. Read, done and now the combination is fixed properly, no rattling, no more creaking.
The camera is with the professional Meike Battery Grip for Nikon D5100 - quality handle with vertical shutter release - double the capacity by 2 batteries now perfectly in my hand, you have a feeling of security. Also vertical shooting go, thanks to the additional shutter release, without the need to clench the hand.
Compatible 100% - - For me, the logical extension and the additional battery Bundle Star * Quality Battery for Nikon EN-EL14 - Intelligent battery system 1030mAh - "next generation" for - Nikon Coolpix P7700 P7100 P7000 - Nikon D3100 D3200 D5100 I now still enough capacity for a whole weekend on the road.