Battery screw hole, stripped and fallen out

I went to replace my doorbell's battery this morning with one of my spares. When I did this, the security screw seemed to strip out the receiver and then got stuck. After some work I was able to remove the faceplate and battery only to have the receiver and security screw pull right out of the battery pack. This is maybe the third time I've used that specific battery pack. I've not had any issues with my others but was wondering if there is any kind of warranty that would cover the battery pack so I might get a replacement. I've attached pictures of the pack in question.