LIPO battery mount with alarm bag

This is a LIPO battery mount for my robot car, "Mr. Stitson".

http://dlacko.org/blog/2016/01/01/mr-stitson-robot-car-with-lego-platform/

I designed it such a way that (1) the battery can be replaced without removing the cover of the robot (2) it also has a bag for the LIPO alarm (3) the alarm is easy to connect to the battery.

To fulfill these requirements the mount is made from two parts attached to each other by two 3M screws, but only one of these parts is attached directly to the ch