Cheap bypassing the battery checks

My initial motivation for the purchase of the handle for my D3100 was the fact that the handle with battery-replica was cheaper than an original battery.
Meanwhile, I have delighted him for two months at the camera and am. He sits rock solid, does not rattle and feels very valuable. That the release cable for the edgewise trigger is guided along the outside does not bother the feel and looks visually even quite cool. Subjectively, the camera with the grip is more comfortable to hold and easy to handle especially relaxed upright. Strong buy recommendation for all who forgo expensive original batteries either (there always has to be an original battery for the check inserted), improve the feel of the camera or simply "pimp" only want the camera.