Chosen Solution
How can I get the battery door fixed?
@mikegail here are the disassembly instructions for your camera DMC-FS15-disassembly.pdf . Page 6 shows the final step to get to the battery door. The battery door is available as a separate part. The Panasonic part number for the door is VYK2Z06 and it is not cheap. I’d try ebay.com or other online places for a replacement. Check the price https://camerarepairparts.com/panasonic-… as well as https://www.ebay.com/itm/NEW-Original-Fo....l1313
The easiest way to resolve this is to replace the case. The battery door is not an available part (as far as I can tell). See the link below. If this includes the part you need, this will be the easiest for you. Dan Link: https://www.ebay.com/itm/GENUINE-PANASON…